Patent Application
20060054634
This present invention is related to a container for discharging plural contents, a dispenser using the container, and a process for producing the dispenser.
Conventionally, as a dispenser for discharging plural contents, a two-fluid mixing type aerosol product is known in which different contents are charged in two aerosol containers respectively. These containers are bundled and discharging members for a common nozzle are mounted on the stem of the valves. The contents are not mixed before been discharged and mixed for the first time when they are discharged. For example, a two-fluid reaction type hair-dye composed of the first agent containing oxidation dye and the second agent containing oxidant are charged in each container and mixed in the process of discharging. However, since this type is composed of two bundled containers, the structure of the discharging member is complicated. More, it is difficult to activate the valves simultaneously and to operate the valves equally. Further, because it increases the length in the direction of coupling, it makes it difficult to grasp the container by hand. Furthermore, since this type needs two containers, the contents must be inserted separately. This will result in high cost. Also this can result in producing aerosol product with different pressure, due to the difference of the amount of the propellant charged in each container. Which means it is difficult to adjust the discharging volume of the two.
On the other hand, in the U.S. Pat. No. 3,079,150, a dispenser of one container filled with a plurality of contents is disclosed. This dispenser has a collapsible inner bag inserted in the outer container and different kinds of the contents especially gelatinous contents charged in the inner bag in layers. This dispenser can discharge the contents continuously in multi-layers, each layer made of different content, (multilayer discharging) at the time of discharging gelatinous contents from one nozzle or spout. Since it is composed of one container, the structure is simple and it is easy to grasp by hand. Further, since it discharges the contents by a propellant charged in one container, the pressure is equal and the discharging volume of both contents can be adjusted easily.
The dispenser of the above U.S. Pat. No. 3,079,150 needs to fill the inner bag with a plurality of contents slowly so that the contents are not mixed, because the upper contents are charged sequentially directly after the lower contents are charged into the bag. This makes it difficult to speed up the charging rate causing low charging efficiency. Further, mutual mixing of contents happens during the storage or the transportation depending on the contents. In such a case, the user cannot obtain the effectiveness of the active ingredient when discharged, because reaction of active ingredients of the contents is induced inside the inner bag. And although the inner bag with crimps in lengthwise direction has an advantage that only a small amount of residue remains in the inner bag after discharging all the contents because of the uniform folding of the inner bag, the mixing of the contents cannot be prevented.
Further in the Japanese unexamined Patent Application No. 2003-40368, a dispenser for discharging a plural of contents having a plural of cylinders in the outer container is disclosed. Because this dispenser comprises two cylinders and two pistons, each content can be stored individually. The contents can be preserved without been mixed during the storage or the transportation. However, it increases the component parts of the dispenser. More, it is difficult to charge the contents into the cylinder when dispenser with only one cylinder is used.
This invention is directed to provide a container for discharging plural contents and its manufacturing process which facilitates high speed charging of contents without mutual mixing of contents and with the least provability of mixing in storage or transportation. Also maintaining an advantage of conventional aerosol products that “the contents are charged in one container, having simple structure, being easy to grasp by hand and easy to adjust the discharging volume because of a same pressure.”
A container for discharging plural contents according to the present invention is characterized by comprising; an outer container, a collapsible inner bag having a plural of chambers inserted in the outer container, a plural of passages communicating each chamber with an atmosphere, a dispensing valve releasing the passages simultaneously, a discharging member activating the valve, wherein the inner bag is substantially one bag divided into plural chambers by compartment element, and each chamber has at least a collapsible part.
In such a container, it is preferable that the passage allows a flowing of the contents and at least one of the passages has a means to stop the flowing when the valve is closed, and it is more preferable that an opening of at least one of the chambers is closed by the valve. It is further preferable that the passage independently communicates each chamber with the atmosphere.
Further, it is preferable that the inner bag has upper and lower chambers provided vertically, and an easily closable partitioning isolates the lower chamber from the upper chamber, except for the passage which communicates the lower chamber with the atmosphere.
In such an easily closable partitioning, a partitioning member engaged on the constriction of size smaller than the opening formed at midway of the inner bag to isolate the lower chamber from the upper chamber, except for the passage which communicates the lower chamber with the atmosphere, may be used.
It is preferable that a part of the passage from the lower chamber to the valve is a tube and penetrates the upper chamber, and it is more preferable that at least a part of such a tube is placed as to be movable up and down against the valve housing and/or the partitioning. More, it is preferable that the container further comprises a gas absorbent provided on outer surface of the inner bag and/or inside of the outer container.
A dispenser for dispensing plural contents according to the present invention is characterized by comprising; the container described above, contents of two or more different kinds, and a means for pressurizing the inner bag to discharge the contents, wherein each chamber is filled with one kind of content. “A means for pressurizing the inner bag” herein referred to includes, a compression air charged in a space between the outer container and the inner bag, a pump to vacuum the contents charged in the inner bag, and a pump to press the inner bag by pressurizing the space between the inner bag and the outer container.
In such a dispenser, it is preferable that the container has two chambers and each chamber is filled with different kind of content. Further, a capacity ratio of the chambers is from 1:5 to 5:1 and the contents charged in the chambers are discharged in the same ratio as the capacity ratio. And the preferred contents contain reactive components, which react and display an effect when the contents are contacted or mixed with each other. It is preferable that the reaction of the reactive components is any one of the reactions selected from the group consisting neutralization, hydration, redox-reaction, ion-exchange reaction, dissolution, and decomposition.
Further, in a dispenser having two chambers and two kinds of the contents, the content charged in one of the chamber may be a first agent of hair-dye containing oxidation dye and the content charged in the other chamber may be a second agent of hair-dye containing oxidant. When the contents of the above are used, it is preferable that the inner bag has upper and lower chamber, the inner bag is formed by blow forming using synthetic resin with laminated structure having gas-absorbance layer or gas-barrier layer, the first agent of hair-dye contains amines, and the first agent is charged in the upper chamber and the second agent is charged in the lower chamber. It is more preferable that the dispenser further comprises a means to check the remaining amount of the contents.
A process for producing dispenser in this present invention is a process for producing dispenser having a container described above, contents of different kinds and a propellant charged in the outer container, comprising a steps of; placing the inner bag into the outer container, charging the contents into the chambers after fixing the valve to the outer container, and charging the propellant into a space between the outer container and the inner bag anytime after inserting the inner bag into the outer container.
Further, a process for producing dispenser having container with upper and lower chambers and with a partition to open and close an opening between the chambers, comprising a steps of, charging one content into one chamber, isolating one chamber from the other chamber, charging the other content into the other chamber, fixing the valve to the outer container, charging the propellant into a space between the inner bag and the outer container with anytime before fixing the valve to the outer container.
The container for discharging a plural of contents according to present invention has an inner bag with a plural of chamber divided by compartment element. Thereby avoid the mixture of the contents during the charging of contents and enables the high speed charging of the contents, although one content is charged into the one chamber directly after the other content is charged into the other chamber subsequently. Therefore the charging efficiency can be increased. Further, the mixture of the content can be prevented during the storage and the transportation. So this container can be used for the contents that must be first mixed at the time of discharging. This container becomes a dispenser by charging the contents into chamber, fixing a means to press the inner bag, for example the charging a propellant or a compression air into the space between the outer container and the inner bag, and fixing the valve to the opening of the outer container for sealing.
A pump to vacuum the contents charged in the inner bag, and a pump to press the inner bag by pressurizing the space may be used for the means to press the inner bag, other than charging the compression air. In this case, a pump integral with valve or separated from valve may be fixed after charging the contents.
The dispenser of the above may be used by opening or releasing the valve, or by operating the pump to vacuum or to press the contents. In this case, the contents charged in the chamber discharge from the nozzle or the spout fixed to the valve through the passage and the valve, because the chambers and the valve are communicated by the passage. The contents are discharge in the mixture or the sheathed form depending on the viscosity of the content and the resistance of the flow system due to the structure of the valve or the spout. These dispensed form of content or the dispensing operation are substantially the same with the previously mentioned U.S. Pat. No. 3,079,150. So it has a simple structure and is easy to handle compare to the conventional aerosol product with two containers. Further, because all the contents charged in the inner bag receive same pressure, it is easy to control the discharging amount of the content.
The phrase “substantially one bag” includes a bag having a plural of the chambers, and a plural of chambers linked or combined as a unit. The phrase “a dispensing valve releasing the passages simultaneously” includes the valve that release the air-tight passage such as aerosol valve, the valve that open the passage when user operate the piston such as pump valve, the valve that open the passage when user presses or grasp such as the squeeze bottle equipped with the valve, and valve that release the passage closed by a check valve.
Where the container with the passage has a means to stops the flowing when the valve is close, it prevent the flow between the chamber and the valve or between the chambers. Therefore, the dispenser with two liquid reactive contents may be efficiently used until the last without the mixing with each other. Especially, when all the passages have said means, flowing of the mixed contents from valve, where the content may be mixed, to the chambers can be prevented. In a result, the non-reacted contents may be safely preserved in the chambers, despite of the repeating operation of dispensing small amount.
In case that the opening of at least one of the chambers is closed by the valve, the passage from the chamber to the valve can be easily secured. Further, the charging of the contents will be eased, because the opening of such a chamber will have same size of diameter with the valve. The phrase “the opening of the chamber is closed by the valve” includes the opening of the chamber closed by both the valve housing and the valve mounting cup.
In case that the passage independently communicates each chamber with the atmosphere, the contents charged in the chamber will not be mixed in the valve or in the container. Therefore it is easy to control the quality of the content containing reactive component that reacts when they contact with each other. More, when the combination of the reactive components that cure or creates the reactant of solid matter at the time of mixture is used as the contents, this invention may prevent the blocking of the valve or the discharging member by the above.
In such a container of above, where the inner bag has upper and lower chambers provided vertically, and an easily closable partitioning isolates the lower chamber from the upper chamber, except for the passage which communicates the lower chamber and the atmosphere, two kinds of contents can be charged in one inner bag. So the structure is simple and handling is easy. The user can isolates the lower chamber from the upper chamber except for the passage after the charging of the content to the lower chamber. Thereby the content charged into the upper chamber will not contact or mix with the contents charged into the lower chamber, despite of the high speed charging of the content to the upper chamber. This will result in high efficiency. Further, where the partitioning is not only easily closed but is free for opening and closing. The same effect of the above may be earned by closing the partitioning after opening the partitioning by hand or by pressure of the charging process to charge the contents into the lower chamber.
In case of that the inner bag has a constriction of size smaller than the opening formed at its midway, and a partitioning member is engaged on the constriction to isolate the lower chamber from the upper chamber, except for the passage which communicates the lower chamber with the atmosphere, the manufacturing of the inner bag will be eased. The inner bag does not need the structure for opening and closing the opening of the chambers in itself. This partitioning member, for example, can be easily attached to the inner bag by previously attached to the dip tube that is a part of the passage.
Where a part of the passage from the lower chamber to the valve is a tube and penetrates the upper chamber, the manufacturing of the container will be ease due to the simplicity of the structure of the container. More, when the tube is corrosion resistance against the contents, the mixture of the contents due to the corrosion of the tube can be prevented. Further, when at least a part of the tube is placed as to be movable up and down against the valve housing and/or the partitioning, it will prevent the tube departing from the partitioning member due to the deformation of the inner bag during or after the charging of the contents.
Further, where a container of the above further comprises a gas absorbent provided on outer surface of the inner bag and/or inside of the outer container, a gas formed by decomposition of the contents can be absorbed efficiently. In such a case, the increasing of the pressure due to the permeation of the gas through the inner bag and the degradation of the contents can be prevented. A gas maybe, the decomposition of the hydrogen peroxide and ammonia gas from the ammonia.
The contents that are charged in a dispenser of the present invention do not mix with each other at the time of charging because it comprises the container written in above. So the charging efficiency of the content is high. Further, the contents hardly mix with each other during the storage and the transportation. More, because the dispenser of the present invention has a means to pressure the inner bag, the inner bag collapse by receiving a force from the outside to the inside. This enhances the degree of adhesion between the inner bag and the partitioning member, which further shuts the lower chamber from the upper chamber. This dispenser is best suit for the configuration like this.
Where the container has two chambers and these chambers are filled with two kinds of contents and a capacity ratio of the chambers is from 1:5 to 5:1 and the contents charged in the chambers are discharged in the same ratio as the capacity ratio, the effect of the planning is easily accomplished with no waste left over on the one side. Where the contents contain reactive components in which react and display an effect when the contents are contacted or mixed with each other, the reactive components can be stably conserved and prevent the degradation of the dispenser, because this dispenser comprises the container of the above and the contents are supplied in the chambers divided by the partitioning. Further, where the reaction of the reactive components is any one of the reactions selected from the group consisting neutralization, hydration, redox-reaction, ion-exchange reaction, dissolution, and decomposition, it is more preferable because these effects can be displayed from one container.
In case that the content charged in one of the chamber is a first agent of hair-dye containing oxidation dye and the content charged in the other chamber is a second agent of hair-dye containing hydrogen peroxide, the contents display the hair-dye effect when the contents are mixed with each other at the time of discharging from the dispenser. And because the dispenser of the present invention comprises the container of the above, these unstable contents can be preserved for long period of time in each chamber without been mixed until it is discharged.
Where the inner bag has upper and lower chamber, and the inner bag is formed by blow forming using synthetic resin with laminated structure having gas-absorbance layer or gas-barrier layer, the bottom of the inner bag is formed by gluing the inner surface of the inner bag. So the gas-absorbance layer or a gas-barrier layer does not lie between the inner bag and the outer container at the glued part. In such a case when the contents charged in the chambers includes the gas that permeates through the resin of the inner bag, the gas leaks outside at the bottom and the product as a whole deteriorates. Further, although the inner layer of the inner bag is gas-absorbance layer or gas-barrier layer the gas may leak through the attachment surface. In such a case, when the first agent of hair-dye contains amines, and the first agent is charged in the upper chamber and the second agent is charged in the lower chamber, the permeation of the gas generated from amines through the bottom of the inner bag can be prevented. Especially, when the amines is ammonia, this dispenser can prevent the lowering of the ammonia concentration and maintain the pH of the oxidation dye. As a result, the oxidation dye can be stored stably. Further, because the second agent is charged in the lower chamber the second agent can also be stably preserve. It prevents the contact reaction of the oxidant especially hydrogen peroxide with the metal parts of valve.
Where a means to check the remaining amount of the contents is comprised, the amount of the contents can be confirmed even the outer container is not transparent. So the problem of not acquiring enough effect of the contents due to running down of the contents supplied in the dispenser during in use may be prevented.
A process for producing dispenser having any one of a container described above, different kinds of contents and a propellant charged in the outer container, has a method of placing the inner bag into the outer container, and charging the contents into the chambers after fixing the valve to the outer container, can charge both contents to each chamber without mixing with other contents. The propellant are usually charged anytime before the valve is been fixed to the outer container, but when the container has gas-charging valve at the bottom of the outer container the propellant may be charged before or after the contents are charged into the container after the valve is been fixed.
The dispenser with the inner bag having an upper and lower chambers and a propellant charged in the outer container, comprising, a steps of charging one content into one chamber, isolating one chamber from the other chamber, charging the other content into the other chamber, fixing the valve to the outer container, charging the propellant into a space between the inner bag and the outer container anytime before fixing the valve to the outer container. This dispenser enables to charge the contents with high charging rate without mixing the contents with the other. Further, where the evacuation of the air between the outer container and the inner bag is carried out before the charging of the propellant, the preservation of the contents for quite a while may be accomplish due to the prevention of the contact between the contents and the oxygen in the air. Further, where the evacuation of the air in each chamber is carried out before the fixing of the valve by opening the valve, the stability of the contents greatly increase.
a and
a,
a is a front cross sectional view of the aerosol valve that has same structure with the aerosol valve of
a is a front cross sectional view of the aerosol valve that has same structure with the aerosol valve of
a is a front cross sectional view of the aerosol valve that has same structure with the aerosol valve of
a is a front cross sectional view of the aerosol valve that has same structure with the aerosol valve of
a,
a and
a,
a is a perspective view of the first embodiment of the partitioning member used in the container,
a and
a is a front view of the other embodiment of the inner bag showing the state of the inner bag being extended, and
a is a front view of the yet other embodiment of the inner bag showing the state of the inner bag being extended, and
a and
a and
a is a perspective view of the embodiment of the spring balance scale used in the container,
a to
a to
a and
a is a front cross sectional view of the discharging member used in the container,
a is a front cross sectional view of the other embodiment of discharging member used in the container,
a and
A conventionally well-known container maybe used as the container 11, which is obtained in a way that metal plates, such as of aluminum and of tin, is formed using reducing work etc. to obtain a cylindrical body having a bottom, shoulder part and neck part are formed in an upper part by necking processing etc., and a bead 17 is formed in a top end of the neck part by curling processing. Moreover, other materials, such as synthetic resins and resisting pressure glass, may also be adopted.
The inner bag 3 is a cylindrical body having a bottom and comprises a body 3a of the inner bag that has an upper chamber 27, a lower chamber 26, and constriction part 71 intervening between the upper and lower chambers; a neck part 3b of the inner bag that is formed at a top end of the body, and that has a flange part formed at a top end; and a bottom 3c of the inner bag for closing a lower end of the body.
The constriction part 71 has a radius smaller than a radius of the body 3a, the upper and lower chambers 27 and 26 are formed being tapering down toward the constriction part 71. This may easily shrink the upper and lower chambers 27 and 26 with discharge of the contents, and as a result, may make a residual quantity of the contents smaller. Moreover, a lower part of the lower chamber 26 is formed being tapered so that a bottom area may become smaller, which makes accommodation of the inner bag into the container easier.
The partitioning member 72, where a lower side face 4c of the body is tapered down, is closely inserted into the constriction part 71 and comprises the cylindrical body 4 having a bottom, a flange part 4a formed being tapered in an upper part of the body, and a cylindrical engaging member 4b projecting from a top face of the body, where an inner surface of top end is being tapered spreading outside, and fitting in closely with the tube 5. In addition, in the lower side face 4c, an annular projection part 6 projecting outside in a radial direction and engaging with the constriction part is provided. Engaging of this annular projection part 6 and the constriction part 71 prevents the partitioning member 72 to separate from the constriction part 71. This engagement seals the lower chamber 26 of the inner bag thoroughly, except for tube 5, when the partition member 72b is inserted into the constriction part 71 with the tube 5 being inserted.
A valve 13b has, as shown in
Such configuration provides to inside of the housing a lower compartment 25a divided by an inner wall of the housing 25, the stem 14, and the lower stem rubber 49a; and an upper compartment 25b divided by upper and lower stem rubbers 49a and 49b and a fixing member 20.
In addition, the stem 14 has two discharging orifices, and channels 18a and 18b in the stem being mutually independent from the discharging orifice. Each of the channels in those stems is in communication with upper and lower stem holes 47a and 47b, respectively, and communicates to each chamber via the upper and lower compartments 25a and 25b.
Referring to
The engaging member 74 is fitted to a projection part of a valve, and has a cylindrical form whose lower opening 8 is tapered open and downward. When the tube 5 inserted in the partitioning member 72 is equipped to the valve 13b, the engaging member 74 guides the tip of the tube 5 to the projection part 7 of a lower end of the valve by just adjusting a tip of the tube 5 to contact with a lower opening of the engaging member, making insertion of the tube 5 into the valve easier.
The tube 5 is inserted into the projection part 7 of the housing 46, and is extended below, and is of materials of metal (for example, stainless steel) or of synthetic resins having corrosion resistance to contents. Synthetic resin coated layers may be provided on an outer surface and/or on an inner surface of a metal tube. The dispenser product may be fully consumed using these configurations, without mixing of the contents with each other.
The discharging member 2 comprises a valve engaging member 2b having two communication holes 2a; two ejecting holes 2c; and channels 2d in the discharging member for communicating the communication hole 2a with the ejecting hole 2c, respectively. The opening of the valve by operating the discharging member will independently discharges the contents separately discharged from a stem of the valve, without mixing.
In the present invention, a content A is charged into the lower chamber 26 of the inner bag, the partitioning member is inserted into the constriction part, the lower chamber is isolated except for channels (or passages), subsequently, a content B is charged into the upper chamber 27, an opening of the upper chamber is closed by placing or fitting the valve on an opening of the inner bag, a propellant C is charged into a space between the container 11 and the inner bag 12 by under-cup charging method etc., the valve is fixed to the container, and finally a dispenser 1a may be obtained. A charging valve for propellant may also be provided in a bottom of the container 11 etc.
As materials for inner bags of such containers, for example, there may be used synthetic resins, such as, linear low density polyethylenes (LLDPE), low density polyethylenes (LDPE), high-density polyethylenes (HDPE), polypropylenes (PP), polyethylene terephthalates (PET), polybutylene terephthalates (PBT), polyethylenenaphthalates (PEN), polyacrylonitriles (PAN), ethylene-vinylalcohol copolymers (EvOH), Nylons (NY), polyphenylene sulfides (PPS), polyvinyl chlorides (PVC), polyvinylidence chlorides (PVDC); metallic foils, such as aluminum (Al). When the synthetic resins are used, the resins are molded by a blow molding method etc. into a cylindrical body having a bottom, and thus an inner bag of the container may be obtained.
As structures of the inner bag, there may be mentioned a monolayer structure of the synthetic resin, or two or more kinds of laminated structures (for example, LDPE/EvOH/LDPE, LDPE/NY/LDPE, etc.), or furthermore, metallic foils laminated with synthetic resins (for example, LDPE/Al/LDPE etc.), and each chamber has at least a flexible part which deforms by a pressure difference. A thickness of the inner bag is 0.1 through 2.0 mm, and preferably 0.3 through 1.0 mm, in consideration of easiness of blow molding, or flexibility. In addition, according to contents charged, a thickness of the upper and lower chambers of the inner bag may arbitrarily be set, for example, a thickness of only one chamber may set thicker. Moreover, according to contents, partially different qualities of materials may be used. Additionally, inner bags may be molded using composite materials. Further, in addition to the synthetic resin, including: volatile rust preventives, such as, dicyclo hexyl ammonium nitrite, dicyclo hexyl ammonium caprylate, and cyclohexyl amine carbamate etc.; gas absorbents, such as ferrous oxide; conductive powders, such as carbon black; metal powders, such as silver and nickel; antistatic agents, such as carbon fiber.
a and
The inner bag 12 is substantially same as conventional inner bags except that it may be constituted freely openable and closable to have a state that communicates an upper part with a lower part in a center section 21 (
Inside of the inner bag 12 is divided into a lower chamber 26 and an upper chamber 27 via a center section 21, in a state where the center section 21 is closed as shown in
In the embodiment, a configuration freely openable and closable in the center section 21 comprises a bendable piece 32 having two or more sheets of inverse-triangled shape connected via bending lines 31 in a lower end of an upper cylinder 30; a bendable piece 35 having a triangled shape connected via bending lines 34 in an upper end of a lower cylinder 33; and cylindrical parts 36 having cornice shape provided between those bendable pieces 32 and 35. Tips of the upper bendable piece 32 and the lower bendable piece 35 are faced to each other. A upper end of the cylindrical parts 36 having a cornice shape is provided with a continuous saw-toothed shape via an oblique side of the upper bendable piece 32 having a triangle shape and the bending line 31. Similarly, a lower end is provided with a continuous saw-toothed shape via an oblique side of the lower bendable piece 35 having a triangle shape and the bending line 34. And in the cylindrical bellows-like part 36, a vertical line for connecting tips of upper and lower triangles is set as mountain fold bending line 40, and a vertical line for connecting bases of the upper and lower triangles is set as valley fold bending line 41. Accordingly, in the cylindrical part 36 having a cornice shape, a mountain fold bending line 40 and a valley fold bending line 41 are alternately arranged, as shown in
In the inner bag 12 thus constituted, when elongated as in
The valve 13, as in
The housing 46 is a cylindrical type component made of synthetic resins, and a valve rubber (not shown) for opening and closing a stem hole of the stem 47 intervenes between a top end and underside of the mounting cup 45. As the stem 47, the spring, and the valve rubber, conventionally well-known materials may be employable. This housing 46 is in communication with the lower chamber 26 of the inner bag 12 via a dip tube 28, and with an upper part of the upper chamber 27 of the inner bag 12 through a communication hole 48. That is, the dip tube 28 and the communication hole 48 are a part of passages for communicating between an each chamber and an exterior. Adjustment of length and diameter of the passages may control a rate of flow from each chamber, and may also control discharged amount ratio of contents charged into each chamber to an suitable percentage. As the dip tube 28, metals (for example, stainless steel) having high corrosion resistance and non-permeability to contents, or synthetic resins may be used, or materials having a coated surface with synthetic resins may preferably be used. Use of these materials will prevent the reaction of contents charged in the upper and lower chambers with the dip tube. Thereby, a content in a lower part remained in the dip tube 28 and a content in an upper chamber 27 of outside of the dip tube 28 may not be permeated through the dip tube 28 to be mixed or reacted with each other via the dip tube 28.
Moreover, as valves used for an aerosol product of the present invention, there may be used a valve 13a with a check valve a shown in
When discharging members, such as an injection button or a spout inserted in the stem 14, are pushed down and a stem hole 47a opens, inside of the container communicates with the atmosphere. Contents pushes up the ball 53 currently energized by the spring 52 with an aid of a pressure of a compressed gas charged in an interior space of the container, and thus discharge of contest will be performed from an discharging hole of the discharging member via the stem hole and the stem. However, since the ball 53 is energized downward with the spring 52 to close the communication hole in a usual state, the contents mixed within the housing 46a does not flow backward to each chamber. Thus, the check valve 51 allows a flow from each chamber to the valve, and prevents a flow to the chamber from the valve. Thus, return to chamber of the contents once mixed within the housing 46a can be prevented (refer to
The valve 13b shown in
Valve 13c of
Valve 13d of
Next, as a discharging member used for an aerosol product of the present invention, conventional spouts and members with nozzle may be used, and discharging members 29a, 29b, 29c, and 29e shown in
A discharging member 29a in
A discharging member 29d in
In an aerosol container 10 of
In the above-mentioned manufacturing process, a flange 24 of the inner bag 12 is pushed downward in an axial direction of the container during charging of contents, after charging of a first content A to the lower chamber 26. Thereby the inner bag is vertically shrunk to close the center section 21, As a result, the second content B will not easily be mixed with the first content A at the time of charging content B. For that purpose, this container enables charging of the second content B at a high speed, leading to an increase in working efficiency. Also, when the second content B is charged, the dip tube 28 is not yet attached, but the dip tube 28 is made to pass through a center of the center section 21 after charging of the second content B. However, the center section 21 may be closed after insertion of the dip tube 28 into the inner bag 12 and subsequently the second content B may be charged. In that case, only the dip tube 28 may be inserted first after charging of the first content A, and, subsequently the housing 46 may be fitted to a top end of the dip tube 28, after charging of the second content B. Or otherwise, the housing 46 and the mounting cup 45 may be attached in a top end of the dip tube 28 first, and, whole of the valve 13 may be dealt with as a module. Moreover, if a strength of the center section 21 is set so that a charging pressure at the time of charging of the second content B to the upper chamber 27 and a self-weight of the second content B to be charged may shrink the center section 21 of the inner bag 12 and may separate the upper and lower chambers 26 and 27 from each other. This makes easy charging of contents, propellants, or pressurizing agents, and easy crimping of the valve 13. Furthermore, in order to eliminate oxygen remained in the container, a vacuuming of the gas or exchanging of an inert gases or a liquefied gas may be performed before charging of pressurizing agents. As a result, it enables preservation of the contents over a long period of time as an aerosol product.
As contents charged in the inner bags used for an aerosol product of the present invention, both of the contents may be of a same kind, and preferably may also be contents of different kinds from each other. The above-mentioned contents of different kinds from each other include: a case where states of the contents (concentration) that are to be charged into each of the chamber, that is, active ingredients; amounts of blending, and blending components, such as solvent; and shape (difference of viscosity included) of contents, such as a shape of liquid, gel, and cream, are different from each other; and furthermore a case where states of the contents, that is, homogeneous system, and uneven system; emulsion system, and dispersion system, (appearance of contents, such as color tone and transparent feeling) are different from each other.
In a dispenser product of the present invention, the contents are charged in a container equipped with a plurality of the above-mentioned chambers mutually divided, both of the contents do not contact or mix with each other in the state where the contents are being charged in the chambers. Accordingly, as contents to be charged in each chamber, there may be used contents that cause reaction during or after discharging due to the contact or mixing etc. of each chamber, or contents blended with reaction components that are activated by mixing. Also, the reaction components may easily react with each other during or after discharging since contents easily mutually dissolve or mix are used. This demonstrates the effects well. As reactions generated by contacting or mixing of the contents, neutralization reactions, hydration reactions, oxidation/reduction reactions, ion exchange reactions, dissolution, acidolysis, etc. may be mentioned. As effects obtained by the reactions, generation of heat, cooling, thickening, coloring (discoloration), film formation, foaming, hidroschesis, etc. may be mentioned.
As combinations of reaction components participating in neutralization reaction, there may be mentioned: water-soluble polymers and pH regulators (acid components or alkaline components); for example, carboxy vinyl polymers and alkali components, acrylic acid/steareth copolymers, acrylic acid/ceteth copolymers and alkali components, acrylic acid/amino acrylic acids/PEG-alkyl (carbon numbers 10-20) copolymers, and acid components. These reagents may be used for application of setting agents for hairs, hair dyes, reduction of inflammation painkiller, ant-heat flushes, coolants, etc., and they display effects to thicken discharged contents (ejected matter) to improve adhesion, or to improve durability of cool feeling.
As combination of reaction components participating in hydration reaction, for example, there may be mentioned: polyhydric alcohols, such as glycerin, diethylene glycols, and propylene glycols, and water; and inorganic powders, such as anhydrous silicic acids, zeolites, sodium carbonate, and potassium carbonate, and water.
These are used for applications, such as moisturizers, cleansing cream agents, pack agents, and shaving foams, and obtaining a sense of heat caused by heat of hydration.
As combinations of reaction components participating in oxidation/reduction reaction, for example, dyestuffs, such as paraphenylene diamine, and oxidising agents, such as hydrogen peroxide and oxidizing enzymes; sodium sulfite and hydrogen peroxide; sodium thiosulfate and hydrogen peroxide, etc. may be mentioned. These are used for applications, such as hair dyes, moisturing creams, cleansing cream agents, pack agents, and shaving foams, and obtaining effects, such as hair dyeing by coloring (discoloration), and blood circulation acceleration, skin maceration by generation of heat.
As combinations of reaction components participating in ion exchange reactions, sodium alginate and calcium lactate, etc. may be mentioned. These are used for application of formation of protective layers, foods, play goods, idea articles, etc., etc., and obtaining a film formation effect.
As combinations of reaction component relating to dissolution, urea and water, calcium chloride (anhydrous) and water, chloro hydroxy aluminum and water, etc. may be mentioned. A combination of urea and water is used for application of anti-itch agents, emollients, keratin clearance agents, ointments, etc., and a feeling effect of cooling by endoergic reaction may be obtained. A combination of calcium chloride (anhydrous) and water is used for applications, such as moisturizers, cleansing cream agents, pack agents, shaving foams, and treatment agents, and heat sensation may be obtained.
A combination of chloro hydroxy aluminum and water is used as antiperspirants, and chloro hydroxy aluminum dissolves in water, and is ionized to demonstrate hidroscheisis effect.
As combinations of reaction components participating in decomposition reactions, for example, carbonates, such as sodium hydrogencarbonate, sodium carbonate, potassium hydrogencarbonate, and potassium carbonate, and acids, such as citric acid, tartaric acid, and phosphoric acid, may be mentioned. These component will decomposed to form carbon dioxide gas and when carbonates dissolve in aqueous solution including acid, and blending foaming agents, such as surface active agents together may give foaming effect. These are preferable in hair care products, cosmetics for human bodies, unregulated drugs, medicines, etc., but the application is, however, not especially limited. Carbon dioxide gas generated may provide blood circulation facilitatory effect, and this may be suitably used as hair restorers.
The reaction components are blended with different contents so that the reaction components may not react with each other in the state where contents are charged in a chamber. As examples of contents, for example, there may be mentioned compositions, such as: hair dyes described in Japanese Unexamined Patent Publication No. 10-45547, Japanese Unexamined Patent Publication No. 10-287534, Japanese Unexamined Patent Publication No. 2001-2537, Japanese Unexamined Patent Publication No. 2001-288055, Japanese Unexamined Patent Publication No. 2001-294519, Japanese Unexamined Patent Publication No. 2001-181159, Japanese Unexamined Patent Publication No. 2002-367294; enzyme hair dyes described in Japanese Unexamined Patent Publication No. 63-46313, Japanese Unexamined Patent Publication No. 06-172145; cleansing creams described in Japanese Unexamined Patent Publication No. 07-173033 etc.; pack agents described in Japanese Unexamined Patent Publication No. 06-336413, Japanese Unexamined Patent Publication No. 08-268828, Japanese Unexamined Patent Publication No. 200119606; treatment agents described in Japanese Unexamined Patent Publication No. 11-228332, Japanese Unexamined Patent Publication No. 11-279031; compositions for shaving described in Japanese Patent Publication No. 45-19996 official report etc.; and heat build-up compositions described in Japanese Unexamined Patent Publication No. 2003-19481, Japanese Unexamined Patent Publication No. 10-306276.
As shapes of the contents, a shape of liquid, gel, cream, paste, etc. may be mentioned and the shapes are not limited in particular. However, it is preferable to use contents having viscosity, such as a shape of gel, cream, paste, etc. giving little movement of reaction components caused by fluidity of the contents. In order to prevent unnecessary reactions caused by contact of contents in housing inside the valves, between chambers of inner bags (partition wall part), and in a discharging channel etc., and also in order to reduce decrease of effect of the reaction components. A viscosity of contents is preferably no less than 100 cp, and more preferably no less than 1000 cp. An effect controlling movement of reaction components caused by fluidity may not be obtained by a viscosity of less than 100 cp.
As states of contents, there may be mentioned: homogeneous system where active ingredients etc. are dissolved in a solvent; heterogeneous system where oily components and aqueous components are separated; oil in water type or water in oil type emulsion system where oily components and aqueous components are emulsified; and dispersal system where solid contents, such as powders, are dispersed in solvents. These states are not especially limited. The contents with few specific gravity differences and contents (solvent) that are mutually dissolved or mixed easily are preferable, in order for reaction components in each content to react easily after or during discharging and to easily obtain demonstrated effects.
A charging percentage of the contents is preferably 5:1 through 1:5, and more preferably 4:1 through 1:4 in a capacity ratio, in order to facilitate adjustment of discharged amount of each contents, and in order for reaction components to react easily, and further to easily demonstrate the effects.
In a double-structured aerosol product in
When the contents A and B are discharged, a pressure in the lower chamber 26 is almost equal to a pressure in the upper chamber 27. Accordingly, a problem that only of one of the two contents many discharged to leave another content remained, or a problem that different discharging amounts between each of the contents fail to make active ingredients react at a predetermined mixing ratio, and does not fully demonstrate a target effect, that is, problems caused by unequal pressurizing will hardly occur. Besides, in an embodiment shown in
As examples particularly desirable as combinations of the contents charged in the container of the above-mentioned present invention, two liquid reaction type hair dyes and two liquid reaction type exoergic formulation may be mentioned.
Two liquid reaction type hair dye comprises a first agent including oxidation dyes, and a second agent including oxidizing agents.
As the above-mentioned first agent, there may be mentioned agents blended with solvents (purified water, lower alcohols, such as ethanol, alcoholic aqueous solution, etc.) including: oxidation dyes, that are oxidized with oxidising agents included in the second agent mentioned later to give coloring, and that dye hair into desired color tones (for example, paraphenylene diamine, N,N-dimethyl paraphenylene diamine, para-amino phenol, etc.), and alkaline agents (for example, ammonia, alkanol amines, etc.) in order to adjust pH of the first agent to a range of 6 through 12 and to stabilize the oxidation dyes and to improve hair dyeing effect.
Besides, in the first agent, in order to adjust colors of hair after treated, there may be blended: acid dyes (for example, Amaranthus, tartrazine, fast green, brilliant blue FCF, orange II, resorcin brown, alizurol purple, naphthol blue black, etc.); direct dyes (for example, 4-nitro-o-phenylenediamine, 2-amino-4-nitrophenol, etc.); other auxiliary components (for example, resorcin, paramethyl aminophenol, tannic acid, benzyl alcohol, N-methylpyrrolidone, etc.)
As the second agents, there may be mentioned agents blended with solvents (purified water, ethanol, alcoholic aqueous solution, etc.) including: oxidising agents for oxidizing oxidation dyes and demonstrating effect (for example, hydrogen peroxide and oxidizing enzyme (for example, laccase, peroxytase, uritaze, catalase, tyrosinase, etc.)); stabilizers (for example, EDTA, tannic acid, parabens, etc.); pH regulators (for example, phosphoric acids, citric acid, lactic acid, tartaric acid, etc.) etc.
Moreover, to both of the first agent and second agent, in addition to the above-mentioned components: active ingredients (for example, treatment agents, moisturizers, UV absorbents, amino acids, vitamins, extracts, preservatives, perfumes, etc.) may be blended in order to demonstrate effects other than the hair dyeing effects; and there may be blended surface active agents (for example, non-ion based surface active agents, silicone based surface active agents, etc.); viscosity control agents (for example, cellulose type thickeners, carboxy vinyl polymesr, xanthan gums, etc.); oily components (for example, silicone oils, ester oils, hydrocarbons, fats and oils, higher alcohols, fatty acids, wases, etc.); and foaming agents (for example, LP gas, isopentane, etc.) etc. in response to discharging shape or feeling of use.
Next, two liquid reaction type exoergic formulation comprises a first agent including exothermic components, and a second agent including water.
As the above-mentioned first agent, oily formulations in which exothermic components generating heat that dissolve in water or hydrate with water (for example, magnesium chloride, zeolite, etc.) are dispersed in oily bases (for example, hydrocarbon such as liquid paraffin and liquid oil such as ester oils and silicone oils) may be used.
Besides, surface active agents for dispersing exothermic components (for example, non-ion based surface active agents etc.); foaming components (for example, carbonates, such as sodium hydrogencarbonate and sodium carbonate); and thickeners (for example, palmitic acid dextrin etc.) etc. may be blended in the first agent.
As the second agents, water formulation including water, such as water, cream (water in oil type emulsions), and aqueous gels, etc. may be mentioned. In order to maintain the exothermic effect, agents having hydrophilic surface active agents dispersed in the oily bases as a second agent may be used. When carbonate is included as a foaming component in the first agent, it is preferable that acids (for example, citric acid etc.) for decomposing the carbonate and generating carbon dioxide gas may be blended.
Moreover, active ingredients (for example, treatment agents, moisturizers, UV absorbents, amino acids, vitamins, extracts, preservatives, detergents, perfumes, etc.) for demonstrating effects other than the exothermic effect; and foaming agents (for example, LP gas, isopentane, etc.) etc. may be blended in both of the first agent and second agent with or without the above-mentioned component.
Aerosol containers 60 in
In addition, an annular groove 65a engaging with a projection on an inner surface of the depressed groove 61 of the container 11 is formed near the top end of an inner bag 12. Furthermore, clear pleat lines as in
Also in the double-structured aerosol container 60, in a same manner as in
In an aerosol container 67 shown in
In the container, when a valve 13 is operated, a first content Ain the lower chamber 68c enters into a dip tube 28 from a lower end of the dip tube 28, a second contents B in a middle chamber 68b enters into the dip tube 28 from the through-hole 69, then both of the first and second contents proceed together, and enter in a housing 46, and a third content C in a upper chamber 68a enters in the housing 46 through the communication hole 48 in the housing 46. Thereby, three kinds of contents A, B, and C are discharged out in a mixed state, or in a layered state. The container is substantially same as the aerosol container 60 of
In an aerosol container 70 in
In addition, a configuration may also be employable that the partitioning member 72 is constituted by elastic members, such as sponge and rubber materials, a through-hole 73 for letting the dip tube 28 pass is formed in a center portion being openable and closable, and isolation is always realized by elasticity of the elastic members. In that case, after charging of the first content A, only the partitioning member 72 is put into the inner bag 12, and then the constriction part 71 is closed, subsequently, the dip tube 28 is put into the inner bag 12, after charging of the second content B into the upper chamber 27, and then may be inserted into the through-hole 73 of the partitioning member 72. And in this case, since the valve 13 equipped with the dip tube 28 may be crimped to the container 11 after the charging of the contents, almost same operations as usual may be done, and a high working efficiency may be realized. Moreover, the constriction part 71 is set smaller than an opening of the container 11 in order to make insertion of the partitioning member 72 from the opening easier, and a size of the constriction part 71 is not particularly limited, when the partitioning member 72 is constituted with flexible materials, such as sponge. Further, an O-ring may be provided inside of the constriction part, or outside of the partitioning member. This will increase sealing state between the upper and lower chambers, and preferably further prevents mixing of the contents in the upper and lower chambers within the inner bag. In addition, some elastomer may be arranged from exterior toward inside of the constriction part. Furthermore, a step or a level difference may also be arranged at the constriction part and the partitioning member. Thereby, the constriction part and the partitioning member are clipped and fitted in. Also in this case, sealing state between the upper and lower chamber increases, and a same function as in the above-mentioned embodiment may be demonstrated. Especially, when a thickness of constriction part is increased, separation of the clip fitting is hard to occur, which is preferable.
An aerosol container 75 in
An aerosol container 75a in
Although in the aerosol container 70 in
Besides, as shown in
Additionally, partitioning members 72b, and 72c as shown in
The partitioning member 72c of
The engaging member 162 fixes a lower end of the dip tube 28, and has an O-ring 165 inside, and this provides sealing while allowing movement in an axial direction between the dip tube and the partitioning member. The dip tube used for this partitioning member 72c has a length from a valve to the partitioning member. Furthermore, in this engaging member, the dip tube is equipped with a clearance between a tip of the dip tube and a top face of a body of the partitioning member, so that dip tube will be able to move vertically. Accordingly, the dip tube may not be disconnected even if a force applied to the inner bag deforms the inner bag when contents are charged into the inner bag using this partitioning member 72c, and even if an impact is applied to the container when dropped during the transportation or in use in which the inner bag having flexibility expands and contracts up and down. Further, the dip tube is supported and the dropping of the dip tube to the lower chamber will be prevented even when engagement between the dip tube and the valve is weakened, such as in the case where the dip tube is deteriorated by the contents to result in expansion. Furthermore, gas accumulated between the partitioning member and the lower chamber at the time of charging of the contents may be removed by opening the valve.
Moreover, the engaging member 162 may be projected high from the body 160 in a shape of a chimney, like the partitioning member 72d shown in
Furthermore, a tip of this engaging member 162 may be directly contacted to a lower part of the valve housing. Thereby, when the valve is fixed, the valve presses the partitioning member 72d via the engaging member 162, which will prevent omission of the partitioning member 72d from the constriction part. In addition, as shown in imaginary line, same effect as in a case of an aerosol container having an engaging member 74 may be obtained. Also, a tip of an engaging member 162 may be directly inserted into an engaging member 74 without use of a dip tube.
Here,
In addition,
An aerosol container shown in
A container 11a has a same top end as in the container 11 of
The partitioning member 72 has a through-hole 73 so that the dip tube 28 may be inserted to penetrate through the partitioning member. A lower end of the dip tube 28 passes through the through-hole 73, and is located in the lower chamber 26 after the charging (
The engaging member 74 comprises cylinder part 197 that closely attached to the periphery of the dip tube engaging part of the lower part of the housing; and tapered part 198 that expands downwardly from the bottom end of the cylinder part to the bottom, and the inner surface of the tapered part forms insertion part 193 having praboloid of revolution. Therefore, the tip of the dip tube equipped beforehand to the partitioning member abuts with the inserting part 193 of the engaging member 74, just only by placing the valve to the opening of the container at the processing of the aerosol product. As a result, the process to attach the dip tube to the valve 13 will be eased.
The discharging member 190a has a means to mix the contents discharged from the valve and the inside channel or passage of the discharging member has a configuration of helix mixer. Thus, the contents mixed in the valve will be mixed equally within. As for the discharging member a discharging member shown in the Japanese Unexamined Utility Model Publication No. 64-25357 and Japanese Unexamined Utility Model Publication No. 04-100483 may be used.
A method for manufacturing the aerosol product 190a, a content A is charged into the lower chamber 26 from the opening of the inner bag 12 inserted into the container 11a. Next, the partitioning member 72 equipped with the dip tube 28 is inserted into the constriction part 71, and a content B is charged into the upper chamber 27. Further, the valve 13 equipped with engaging member 74 is attached to the dip tube 28, a compression air or the kind is charged into the space between the container and the inner bag by method of under-cup charging (
The aerosol container product 180 shown in
The dip tube 28c is composed of two tubes 28a, 28b having different diameter and the thin diameter tube is inserted into in the large diameter tube. The inner diameter of the thick tube 28a is made to be practically same as the outer diameter of the thin tube 28b, and the thin tube 28b is longer than the thick tube 28a where the length of the thick tube 28a is same as the distance between the dip tube engaging part 55 and the engaging part 162 of the partitioning member 72 in the condition that the valve 13 is crimped.
The manufacturing method of the aerosol product 180, first the content A is charged in the lower chamber, the partitioning member72 equipped with the dip tube 28 is inserted into the constriction part of the inner bag, and the thick dip tube 28a is extended so that the upper end protrudes higher than the opening of the inner bag (
In this embodiment, the case that the thin tube is longer than the thick tube is described, however the thick tube may be longer than the thin tube. In this case, when the valve is crimped, the each ends of the thick tube engage with the dip tube engaging part 55 of the valve and the engaging part 162 of the partitioning member, and the thick tube serves practically as a dip tube of the aerosol product.
The inner bag 76 shown in
The inner bag 76 composed as above has a wide area of the opening which is surrounded by the fold line 81 of valley fold that continues the upper and lower half of the cornice 80a and 80b. In other words, the fold line 81 that continues the third truncated cone 79 each other, in the condition extended upward and downward as shown in
The inner bag 82 shown in
It is possible not to provide the constriction part 71 and provide only the fold line 83. However in this case the discontinued part of the fold line 84 protrudes outward (see
In the case of
Further in
In any of the above embodiment, after squashing the center part after charging the first content, the squashed portion can be tightly put together by heat sealing, ultrasonic welding, high frequency induction welding, adhering by adhesive leaving the through hole for passing the dip tube. Thus the sealing property between the chambers becomes high. In any of the embodiment described above, number of the chamber is not limited to two and it can be three or more than four.
In the inner bag shown in
The inner bag 85d, as shown in
As a charging method of the dispenser of this invention using this inner bag, the bottom is formed by affixing a thin film in the inside surface of the tapered under shoulder 89b of the upper chamber member 85b, the contents are charged in the upper and lower chamber through separate lines, and these chamber members are connected to be inserted into the outer container. Next, the valve with a dip tube is fitted on the upper neck part of the upper chamber member to break the film, a propellant is charged and the valve is fixed. Otherwise, the contents are charged into the lower chamber member 85a and the film is covered, the upper chamber member 85b is connected, the content is charged in the upper chamber member, the charged inner bag is inserted into the outer container, and the valve is inserted to charge the propellant. This method allows higher production speed. Further, long term stable storage of the contents may be achieved, because the material of the inner bag suitable for the contents can be used.
In the case that the film is not used and the upper and the lower chamber member are sealed by a dip tube having practically the same outer diameter as the inner diameter of the connecting part, the content is charged into the lower chamber member, the upper chamber member is connected, the dip tube is inserted, the content is charged into the upper chamber member, and then the propellant is charged. In this case, the contents can be charged in the order of the lower chamber member and the upper chamber member after the upper and the lower chamber member are connected.
Further, the film and the dip tube having the same outer diameter as the inner diameter of the connecting part may be used to enhance the sealing effect.
The inner bag of
In the inner bag 187 of
The aerosol container 90 of
The outer container 91 has a cylindrical body with bottom, the shoulder part extending in tapered shape from the upper end of the body, and the neck part continuing from the shoulder part. Under the end of the above neck part, a concave groove 91a is formed continuing from the upper end of the shoulder part. The outer container 91 is manufactured by conventional blow molding method, a parison made of polyethylene terephthalate or synthetic resin of polyethylene terephthalate etc is inflated using air pressure, the inflated parison is closely contacted to a metal mold, and the hollow body is obtained by cooling down. Further the shape of the container disclosed in Japanese Unexamined Patent Publication No. 2000-327053 may be used. By making the outer container transparent or translucent, it is possible to view the inside content to check the accurate remaining amount and the condition of the upper and lower chambers. Especially for the aerosol products filled with the contents, which reacts when the contents of upper and the lower chamber are mixed with each other. Further providing a scale on the outer container is preferable because it enables the accurate check of the remaining amount and the condition of the contents. In this embodiment, the remaining amount of the content can be checked by external view because the outer container is transparent or translucent. In other cases where the outer container is not transparent, a thread or a string is preferable to be connected in the middle stream of up and down direction of the product. In this case, it is possible to check the remaining amount of the contents by the inclination of the product when another end of the thread is tucked to hang the product.
The inner bag 92 described above is practically same as the inner bag 187 of
The valve 93 is provided with a cylindrical housing having a projection radially-outwardly protruding at the upper end; and a mounting cup fixing the housing with clipping the projection in between the opening of the outer container, covering the opening of the outer container 91, and the crimping the concave groove 91a to make the outer container air-tight. The other compositions are practically same as the valve 13 in
In the embodiments disclosed above, a space 96 shown in
The aerosol container 120 of
The aerosol container 130 of
In the embodiment described above, aerosol products in which the inside pressure of the container is increased by a propellant such as compressed gas. The container 100 shown in
Other components such as the inner bag and the outer container are same as those shown in
The inner bag 112 is same as that of aerosol container 90 of
The aerosol container 170 of
As described above, in the case that the outer container is not transparent, it is preferable to provide a means to check the residual amount of the contents. As a means for checking the amount of the residual, for example, like the container 181 shown in
Further, the container 183 shown in
The confirmation method of the residual amount in the container 183, a liquid such as water is charged into the container cover 184, and the container 183 is floated in the container cover 184. The level (height) of the container 183 differs according to the buoyancy of the container. And the buoyancy differs according to the residual amount of the container 183. So, the residual amount of the container 183 may be confirmed by previously recording the relationship between the level of the container and the residual amount on the periphery surface or in the attached documentation. For example, the container 183 equipped with the scale that shows the relationship between the protrusions height of the container 183 from the container cover 184 and the residual amount may be mentioned. Such as, the container 183 equipped with the scale written 100 on the periphery surface 5 cm below the upper end of the container 183 maybe used to the container in which the upper end of the container 183 protrudes 5 cm above the top of the container cover 184 when the container 183 with residual amount 100% is inserted into the container cover 184 with water charged.
Further like shown in
A container 185a shown in
A dispenser having a means to check the remaining amount of the contents can confirm the residual amount of the container even if the container body is not transparent or translucent. Thus the problem of not obtaining the desired effect or finish, due to the running down of the contents during the use can be solved.
A discharging member that can be used to the aerosol product of the present invention is disclosed in
The nozzle 202 is cylindrical having bottom and is provided with the injection hole 202a at the center of the bottom, and engages with a discharging member body 204. Further, whorled projection 208 that whorl from the edge to the center is formed at the inner side 206 of the bottom, and is formed on the engaging surface between the discharging member body 204 and the nozzle 202. Further, an opening of the passage 203a, 203b belong to the edge of the inner side 206 of the bottom when the nozzle is engaged with the discharging member body 204 like shown in dotted line (
Therefore, the contents A, B that are dispensed from the passage 18a, 18b of the valve reach the inner side of the bottom 206 through passage 203a, 203b of the discharging member. As a result, the contents form the volute due to the projection 208 and are mixed at the inner side 206 of the bottom. And the mixed contents discharge from the injection hole 202.
The discharging member 200 is best suiting for the contents with low viscosity, with liquid form, that discharged in the state of mist, and that reacts when the two liquid are contacted or mixed. Therefore the mixture of the effect is large, and the effects can be obtained simultaneously at the time of discharging. For example, by using the contents that carry out neutralization and thickening at the time of mixture, the mixed content starts increasing the viscosity at the injection hole, discharges in rough misty state, and becomes gel state (gelatinous) at the adhesion surface thus prevent the drop off. Further, when the contents that dissolute and carry out exothermic reaction or endothermic reaction by mixing the contents are used, the discharged contents are injected with form of mist in warm or cold state.
The other type of discharging member for the aerosol product for this invention is disclosed in
The nozzle 205a, 205b are engaged with the discharging member body 204 in the above disclosed embodiment, but it may be integrally formed.
The other discharging member is disclosed in
Here, the preferable figure of the inner bag to charge two kinds of the contents are disclosed in
The inner bag 220 is cylindrical with bottom and has body 224 having an upper chamber 221, lower chamber 222, and constriction part 223 between the upper and lower chambers; neck part 225 formed on the top of the body in which the flange 225a is formed on the upper end; and a bottom part 226 that closes the lower end of the body.
The constriction part has a diameter smaller than the body and the upper chamber 221 and the lower chamber 222 are formed in tapered shape toward the constriction part. Therefore the residual of the contents may be minimized, because the upper and the lower chamber 221, 222 deflates easy along with the discharging of the content. Further, the lower part of the lower chamber 222 is tapered toward the bottom 226 as the bottom area may decrease. This will ease the insertion of the inner bag into container body.
Further, thickness of the constriction part is formed thicker than the other part of the inner bag. This will increase the strength of the constriction part. So, when the partitioning member is inserted into the constriction part, the constriction part will closely engage with the partitioning member and avoid the omission of the partitioning member from constriction part.
The inner bag 220 is manufactured by blow forming method using the tubular synthetic resin and the bottom is formed by pasting the inside surface of the tube. So the continuous production can be achieved, thus increase the working efficiency. However, when the contents generate a gas or include gas, the gas may percolate through the joint surface of the bottom. Either a resin sheet may be adhered or a gas absorbent coat 227 made of gas absorbent may be equipped under the bottom 226 for preventing the percolation of the gas. Especially when the gas is an alkalinity gas such as ammonia gas or an oxidizing gas such as oxygen gas, the corrosion of the metal container body may be prevented due to the percolated gas. Further as shown in imaginary line, a cylindrical gas absorbent bag that is accommodated in the container body and accommodate whole inner bag 220 may be attached between the container body and the valve.
In the inner bag mentioned above, because plural of different contents are charged, the inner bag must be stable against all contents. The word “stable” means in the above is that the dispenser as a whole is stable and that the inner bag is anticorrosion against the contents and prevents the percolation of the gas generated from the contents such as decomposition.
In such an inner bag, for example, materials stable against the contents charged in each chamber laminated on the each chamber respectively maybe mentioned. More, the material stable against the content charged in one of the chamber is laminated as a film on the outer surface or the inner surface of the other chamber of the inner bag made of material stable against the content charged in the other chamber maybe used. Further, the inner bag that is provided with the upper chamber member 85a and the lower chamber member 85b, like the inner bag 85 of
For example, the two layer structure inner bag 230, shown in
The inner bag 234 of
As the material with high acid proof, polyester such as polyethylene terephthalate, polylefins such as polythene and polypropylene, and polyvinylidene chloride may be mentioned. As the material with high alkali proof, polyamide such as Nylon 6 and MXD-6, polyphenylen sulfides may be mentioned.
Further, gas barrier layer 240 may be laminated on the chamber that contains contents generates gas like shown in imaginary line on the chamber of the inner bag 230, 234. For example, as the material suitable to prevent the percolation of the ammonia gas generated from the alkaline liquid containing ammonia or oxygen gas generated from the acid liquid containing hydrogen peroxide, ethylene-vinylalcohol copolymers and polyvinylidence chlorides may be mentioned. The gas barrier maybe formed by providing gas barrier layer between the acid proof layer and the alkali proof layer to form three layer structure, or by providing the gas barrier layer on the both side of the laminated layer of the acid proof layer and alkali proof layer to form four layer structure, or by providing the gas barrier layer on both side of the three structure layer of the above to form five layer structure. Further, silica or aluminum may be distributed on the otter surface of the inner bag by deposition to further improve the quality of the gas barrier. Especially, when the silica is distributed the resistance against the acid and the alkaline also improves.
Therefore, the inner bag with gas barrier can prevent the percolation of the ammonia with time and prevent the degradation of the ammonia concentration. As a result, the degradation and decomposition of the component that is composed with the ammonia and is stabilized by the ammonia may be prevented. Further, the degradation and decomposition of the contents that are charged in other chamber may be prevented.
The dispenser of this invention maybe used as aerosol product that discharge hair dye, enzyme hair dye, hair dress agent or setting agent for hair, hair growth agent or hair restorers, reduction of inflammation pain killer, anti-heat flushes, coolants, pack agents, cleansing agents, shaving foams, moisturizers, antipersipirants, vitamin preparations, emollients and etc.
The dispenser of this invention is described with the examples. Table 1 and Table 2 show contents of the first agent and the second agent charged in the upper and the lower chamber used for the examples respectively.
Two-liquid reaction type hair dyes agent shown in Table 1 and Table 2 were used as contents. The contents were charged in a container 75a shown in
Two-liquid reaction type hair dyes agent shown in Table 1 and Table 2 were used as contents, the contents were charged in a container 60 shown in
Two-liquid reaction type hair dyes agent shown in Table 1 and Table 2 were used as contents, the contents were charged in a container 90 shown in
Two-liquid reaction type hair dyes agent shown in Table 1 and Table 2 were used as contents, the contents were charged in a container 190b shown in
Two-liquid reaction type exothermic foaming agent shown in Table 3 and Table 4 were used as contents, the contents were charged in a container 190a shown in
50 grams of the first agent (paste form exothermic foaming agent), shown in Table 3, was charged into the lower chamber 26 of the container, the partitioning member 72 equipped with the dip tube 28 was engaged to the constriction part 71 of the inner bag shown in
The obtained dispenser product was operated to dispense the contents. The sodium hydrogen carbonate and the citric acid dispersed in the first agent were dissolved in the water contained in the second agent when the contents were mixed with finger, and generate carbon dioxide gas due to the decomposition of the sodium hydrogen carbonate. Further, the anhydrous magnesium chloride dispersed in the first agent was dissolved in the water contained in the second agent, and generated heat. These reactions shaped the dispensed substance into mild and warm foam. When this formed substance was applied to a make up skin, the form prompted the make to float and gave the heat to the skin, and thus enabled to remove the make up easily.
Two-liquid reaction type exothermic agent shown in Table 5 and Table 6 were used as contents, the contents were charged in a container 190 shown in
20 gram of the first agent (paste form exothermic agent), shown in Table 5, was charged into the lower chamber 26 of the container, the partitioning member 72 equipped with the dip tube 28 was engaged to the constriction part of the inner bag 12 shown in
The obtained dispenser product was operated to dispense the contents. The anhydrous magnesium chloride dispersed in the first agent was dissolved in the water in the second agent to generate heat when the contents were mixed by finger. When this dispensed substance was applied to hair, the hair became supple and catered to needs of easy styling.
Two-liquid reaction type foaming agent shown in Table 7 and Table 8 were used as contents, the contents were charged in a container 190a shown in
The first agent (paste form foaming agent), shown in Table 7, was charged into the lower chamber 26 of the container, the partitioning member 72 equipped with the dip tube 28 was engaged to the constriction part 71 of the inner bag shown in
The obtained dispenser product was operated to dispense the contents. The sodium hydrogen carbonate dispersed in the first agent was dissolved in the water in the second agent when the contents were mixed with the finger and decomposed through reaction on citric acid to generate carbon dioxide gas. The dispensed substance was frothed into foam by the generated carbon dioxide gas. When this dispensed substance was applied to head, the facilitative effect in the blood circulation due to the generated carbon dioxide gas was obtained. And since it was being formed, the active ingredient was effectively given to the head due to its resistivity against falling in drops from the head.
Two-liquid reaction type exothermic agent shown in Table 9 and Table 10 were used as contents, the contents were charged in a container shown in
50 gram of the first agent (paste form oil based agent), shown in Table 9, was charged into the lower chamber of the container, the partitioning member 72e equipped with the dip tube was engaged to the constriction part of the inner bag shown in
The obtained dispenser product was operated to dispense the contents. The anhydrous magnesium chloride dispersed in the first agent was dissolved in the water in the second agent to generate heat when the contents were mixed on the palm. When this dispensed substance was applied to hand, it gave warm feeling to the hand and the cream was well spread.
Two-liquid reaction type exothermic agent shown in Table 11 and Table 12 were used as contents, the contents were charged in a container shown in
In addition, 50 gram of the first agent (paste form water based agent), shown in Table 11, was charged into the lower chamber of the container, and 50 gram of the second agent (paste form oil based agent), shown in Table 12, was charged into the upper chamber of the container. Other manufacturing processes were same with the example 8.
The obtained dispenser product was operated to dispense the contents. The anhydrous magnesium chloride dispersed in the first agent was dissolved in the water in the second agent to generate heat when the contents were mixed on the palm. When this dispensed substance was applied to hair, it made hair more ductile by ingredients for conditioning and by thermal effect.
Two-liquid type agent shown in Table 13 and Table 14 were used as contents, the contents were charged in a container shown in
In addition, 50 gram of the first agent (oil based creamy agent), shown in Table 13, was charged into the lower chamber of the container, and 50 gram of the second agent (water based creamy agent), shown in Table 14, was charged into the upper chamber of the container. Other manufacturing processes were same with the example 8.
The obtained dispenser product was operated to dispense the contents. The viscosity of the creamy first agent and the second agent was increased when the contents were mixed on the palm, and it became wax like. When this dispensed substance was applied to hair, it enabled styling of the hair.
Two-liquid reaction type alterant agent shown in Table 15 and Table 16 were used as contents, the contents were charged in a container shown in
In addition, 50 gram of the first agent (gelatinous acidic water based agent), shown in Table 15, was charged into the lower chamber of the container, and 50 gram of the second agent (gelatinous alkaline oil-based agent), shown in Table 16, was charged into the upper chamber of the container. Other manufacturing processes were same with the example 8.
The obtained dispenser product was operated to dispense the contents. When the contents were mixed on the palm, the blue gel (first agent) and the pink gel (second agent) changed their color into green.
Two-liquid reaction type exothermic agent shown in Table 17 and Table 18 were used as contents, the contents were charged in a container shown in
In addition, 50 gram of the first agent (paste form water based agent), shown in Table 17, was charged into the lower chamber of the container, and 50 gram of the second agent (water based creamy agent), shown in Table 18, was charged into the upper chamber of the container. Other manufacturing processes were same with the example 8.
The obtained dispenser product was operated to dispense the contents. The zeolite dispersed in the first agent was dissolved in the water in the second agent to generate heat when the contents were mixed on the palm. When this dispensed substance was applied to skin, it gave warm feeling to the skin and the make up on the skin was easily removed.
Two-liquid mixture type agent shown in Table 19 and Table 20 were used as contents, the contents were charged in a container shown in
The air in the space between the container body and the inner bag was evacuated by vacuuming, then the nitrogen gas was charged into the space. The valve was fixed to the opening of the container body to close the opening of the inner bag. Next, the stem of the valve was lowered so as to evacuate the air of the upper and lower chambers. Further, 12 gram of the first agent (Oil based liquefied agent), shown in Table 19, was charged through the passage that communicate with the lower chamber with only opening the passage communicating the lower chamber and the atmosphere. Then 48 gram of the second agent (water in oil type creamy agent), shown in the Table 20, was charged through the other passage that communicates with the upper chamber. The inner pressure of the container was 0.8 Pa.
The obtained dispenser product was able to preserve without effective ingredient (retinol) contacting with water and to mix the contents at desirable time. Therefore, the effect of the retinal was kept for a long period time without deteriorating.
As a container, the container shown in
As a container, the inner bag without plural chambers was used for the container shown in
The dispensers of example 1 to 3 and comparative example 1, 2 were stored for a given period (one month, three months, six months) and an inner pressure of stored products, conditions of the stored products, performance tests were carried out.
Measurements of the product pressure were carried out with the products stored at 45° C. for a given month and adjusted to 25° C. by storing in a tropical aquarium of 25° C. for one hour. The results are shown in Table 21.
The contents of the stored products were observed visually to know the conditions of the products. The results are shown in Table 22.
For the performance test, the contents were dispensed over a bundle of hair (human hair, black, 10 Cm long) and a coloring process was carried out. The finish of the dispenser products in which had not been stored were used as a standard for evaluation of the coloring-processed bundle of the hair. The results are shown in Table 23.
⊚: No color change was observed in both of the first agent and second agent near the partitioning.
◯: A slight color change was observed in both of the first agent and second agent near the partitioning.
Δ: Color change was observed in both of the first agent and second agent near the partitioning.
X: Color Change was observed also in other parts than the first agent and second agent near the partitioning.
⊚: No remarkable difference observed in the color of the hair bundle.
◯: A slight deterioration observed in the hair bundle processed after storage. But it is not a cause for concern.
Δ: Deterioration was observed in the hair bundle processed after storage.
X: Remarkable deterioration was observed in the hair bundle processed after storage.
It was concluded from these results that in the example 1 to 4 of the dispenser product of this invention no remarkable abnormality was observed in the containers and the contents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2002-186671 | Jun 2002 | JP | national |
| 2002-307654 | Sep 2002 | JP | national |
| 2003-45109 | Feb 2003 | JP | national |
| 2003-105918 | Apr 2003 | JP | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/JP03/08074 | 6/26/2003 | WO | 7/21/2005 |
