Patent Application
20050137555
This application is based upon and claims the benefit of priority from Japanese Patent application No. 2003411090 filed on Dec. 9, 2003, the entire contents of which is incorporated herein by reference.
The present invention relates to an individual wrapping container in which an interlabial pad is packaged, and more particularly to an individual wrapping container contrived so as to prevent contamination of the interlabial packaged in the container.
Currently, an interlabial pad attached between female labia for absorbing menstrual blood is known. The interlabial pad is sanitary and clean since the pad prevents diffusion of menstrual blood and resultant wide contact between the blood and the body by more tightly contacting with the body than a sanitary napkin. Additionally, the pad attached between labia has features that the interlabial pad is more comfortable during use providing excellent sense of fitness since it is smaller in size than the sanitary napkin, and that the interlabial pad gives less feeling of rejection at the time of attachment than a tampon which needs to be inserted into a vagina.
An example of an interlabial pad of this type is shown by an interlabial pad 710 having an elliptic shape as illustrated in
The interlabial pad 710 disclosed in Patent Reference No. 1 or 2 is entirely covered with the individual wrapping container 720. Thus, the interlabial pad 710 before use can be carried without being contaminated. Particularly, since the individual wrapping container 720 is made from a vinyl sheet which is not permeable to liquid, contamination of the interlabial pad 710 is avoided even when the individual wrapping container 720 is dropped on a lavatory floor.
An interlabial pad described in Patent Reference No. 2 has a surface side sheet and a back side sheet. A semicircular holding portion is provided on the back side sheet. The interlabial pad is folded double along a center line in a longitudinal direction such that two parts of the back side sheet facing to each other, and is accommodated in an individual wrapping container such that the surface side sheet is disposed to contact the inside surface of the individual wrapping container. The individual wrapping container described in the Patent Reference No. 2 has an inside surface and outside surface and is folded along a longitudinal axis direction such that two parts of the inside surface facing to each other. Three sides of the individual wrapping container are joined and one remaining side is re-closably sealed to provide a bag shape. This structure allows a wearer to hold the holding portion of the interlabial pad and take the pad out of the individual wrapping container. Thus, the surface side sheet of the interlabial pad is not contaminated. Additionally, it is possible to accommodate a used interlabial pad in an individual wrapping container from which an interlabial pad before use is taken out and seal the individual wrapping container with the used pad again.
[Patent Reference No. 1] International Publication No. 02/094151 Pamphlet
[Patent Reference No. 2] U.S. Pat. No. 6,131,736
However, in the individual wrapping container disclosed in Patent Reference No. 1, the initial configuration and the sanitary condition of the interlabial pad at the time of manufacture are not maintained in some cases. For example, when the individual wrapping container 720 covering the interlabial pad is folded for carrying, the interlabial pad contained in therein is folded accordingly, resulting in warp of a peripheral portion of the interlabial pad.
On the other hand, in the individual wrapping container described in Patent Reference No. 2, it is necessary to hold a used interlabial pad by one hand and an interlabial pad before use by the other hand, i.e., with both hands being occupied when it is desired to attach the new pad before placing the used pad in the individual wrapping container. Since it is impossible to produce a sufficient space for inserting the interlabial pad by opening labia using an unoccupied hand and attach the new interlabial pad into labia using the other hand, the new interlabial pad is not securely positioned at an appropriate location. As a result, the absorption performance of the interlabial pad is not sufficiently offered.
The present invention has been developed to solve the above-described problems. It is an object of the invention to provide an individual wrapping container capable of preventing contamination of an interlabial pad before use and maintaining an initial condition at the time of manufacture. More specifically, it is an object of the invention to provide an individual wrapping container capable of inhibiting and avoiding load applied on a peripheral portion of the interlabial pad so as to prevent deformation and damage of the interlabial pad accommodated within the individual wrapping container. It is also an object of the invention to provide an individual wrapping container capable of preventing contamination of the interlabial pad before use at the time of replacement of a used interlabial pad. It is further an object of the invention to provide an outer wrapping container and an intermediate wrapping container capable of inhibiting and avoiding load applied on the peripheral portion of the interlabial pad.
More specifically, the followings are provided according to the present invention.
(1) An individual wrapping container in which an interlabial pad attached between labia is packaged, wherein: the interlabial pad includes a peripheral portion forming a contour of the interlabial pad; and the individual wrapping container includes a protective region having higher rigidity than the rigidity of the peripheral potion of the interlabial pad so as to protect the peripheral portion.
The term “rigidity” as described above refers to capability of an object for resisting breakage due to bend, distortion or other cause. The term “peripheral potion” refers to an end portion forming a contour of the interlabial pad. For example, when the interlabial pad is structured such that an absorption member is sandwiched between two sheets to be wrapped therein, the peripheral portion is located in an area where the sheets are connected to each other outside the absorption member where the absorption member is not provided. The peripheral portion is easily deformed when coming into contact with the skin of a wearer.
The individual wrapping container of the invention includes the protective region having higher rigidity than that of the peripheral portion of the interlabial pad. The protective region prevents warp and crush of the peripheral portion of the interlabial pad accommodated in the protective region since the protective region is not easily bent or twisted when shock is applied to the individual wrapping container. Thus, deterioration of wearing comfortableness at the time of attachment of the interlabial pad which is taken out of the individual wrapping container is avoided. Additionally, since the protective region is provided, the peripheral portion of the interlabial pad itself is allowed to be soft. Thus, the interlabial pad offers more enhanced wearing comfortableness. Furthermore, the entire wrapping container may be formed by the protective region having higher rigidity than that of the peripheral portion in the present invention. In this case, the individual wrapping container itself is not easily crushed while being carried, thereby preventing warp and crush of the entire peripheral portion of the interlabial pad accommodated within the individual wrapping container.
When the connected area of the sheets is positioned at the peripheral portion in the interlabial pad as described above, the connection between the sheets at the peripheral portion of the interlabial pad is sometimes separated and one of the sheets is thus warped due to folding of the individual wrapping container or other cause. As a result, the absorption member tends to be exposed, and fibers of the absorption member sometimes remain on the inner wall of the labia directly contacting the absorption member when the wearer attaches the interlabial pad in such a condition. However, it is possible to prevent this problem in advance in the present invention.
(2) The individual wrapping container according to (1), wherein: the peripheral portion of the interlabial pad includes a vestibular floor contact region contacting with a vestibular floor of a wearer during attachment of the interlabial pad; and the protective region is disposed at least in a portion where the individual wrapping container contacts the vestibular floor contact region when the interlabial pad is packaged in the individual wrapping container.
The term “vestibular floor” as described above refers to the region at the base of the right and left labia, that is, the region along a line from the clitoris to the ostium vaginae located in the inner portion of the labia.
In the individual wrapping container of the invention, the protective region is disposed in the vestibular floor contacting region of the interiabial pad contacting the sensitive vestibular floor. This structure particularly prevents deformation and damage of the vestibular floor contacting region of the interlabial pad, thereby avoiding damage to the clitoris and anus caused by attaching the interlabial pad with the area contacting the sensitive clitoris and anus being warped.
(3) The individual wrapping container according to (1) or (2), wherein the protective region is made from a rigid material having predetermined rigidity.
In the individual wrapping container of the invention, the protective region is made from the rigid material having predetermined rigidity. Examples of the rigid material having predetermined rigidity involve polyethylene, polypropylene, polyethylene terephthalate, polyvinyl alcohol, polylactate, polybutyl succinate, nonwoven fabrics and paper, and laminated nonwoven fabrics and paper, each of which is 15 to 60 μm in thickness. More specifically, a film formed by mixing low density polyethylene (LDPE) resin at a rate of 80% or less and high density polyethylene (HDPE) resin at a rate of 20% or more and adjusting the basis weight per unit area in a range from 15 to 35 g/m2 may be used. Additionally, a film drawn for enhancing resin orientation may be employed. Furthermore, the individual wrapping container preferably blocks off the color of menstrual blood absorbed by the interlabial pad. For this purpose, pigment may be mixed in a range from 0.2% to 10%, or ink and the like may be printed.
The entire individual wrapping container may be made from the above material, or a sheet made from the above material may be affixed on the protective region.
(4) The individual wrapping container according to (1) through (3), wherein the protective region is embossed.
In the individual wrapping container of the invention, the protective region can be easily provided at an appropriate position by embossing the protective region. Moreover, an additional component is not required for forming the protective region, thereby lowering the material cost. Shown below is a specific example of an embossing pattern in which minute convexes are provided on a film. The height of the minute convexes is in a range from 0.05 to 2 mm, and the distance between the respective minute convexes is in a range from 0.3 to 20 mm. A wavy embossing pattern may be adopted. Particularly when the wavy shape is directed in the lateral direction and continuously formed in the longitudinal direction, a front end 10a and a rear end 10b contacting the vestibular floor can be further protected since buckling strength of the protective region in the longitudinal direction becomes extremely high.
(5) The individual wrapping container according to any one of (1) through (4), wherein: the individual wrapping container is constituted by a sheet body; and the protective region is formed in a folded portion formed by folding a part of the sheet body.
The individual wrapping container of the invention is constituted by a sheet body, and the thickness of the sheet body in the protective region is increased to enhance its strength by folding a part of the sheet body. Since the protective region is formed by folding a single successive sheet of the sheet body, an additional component such as a plurality of sheet bodies to be laminated to each other is not required. Thus, the protective region can be securely provided at an appropriate position. Additionally, the buckling strength of the two-folded sheet is larger than that of two sheets simply overlapped, and external pressure applied is difficult to escape from the folded portion, which further increases the buckling strength.
(6) The individual wrapping container according to any one of (1) through (5), wherein a buckling strength of the protective region is established in a range from 100 mN to 2,000 mN.
In the individual wrapping container of the invention, the buckling strength of the protective region is established in a range from 100 mN to 2,000 mN. When the buckling strength of the protective region is smaller than 100 mN, the peripheral portion as well as the individual wrapping container crushes. When the buckling strength of the protective region is larger than 2,000 mN, it is difficult to wrap the interlabial pad in the individual wrapping container during the wrapping process of the production line due to its extremely high rigidity, which results in output of defective products. In the present invention, however, the interlabial pad can be easily packaged in the individual wrapping container during the wrapping process while protecting the shape of the peripheral portion of the interlabial pad accommodated in the individual wrapping container by establishing the buckling strength in the above-described range. More specifically, a film formed by mixing low density polyethylene at a rate of 50% and high density polyethylene at a rate of 50% and adjusting the basis weight per unit area at 25 g/m2 is folded once to produce the protective region having four layers (two layers on one side with the interlabial pad disposed in the middle). In this case, the buckling strength of the protective region is 1,400 mN.
(7) The individual wrapping body comprising an individual wrapping container according to any one of (1) through (6) and a interlabial pad accommodated in the individual wrapping container, wherein: the interlabial pad includes a peripheral portion forming a contour of the interlabial pad; and a buckling strength of the peripheral portion of the interlabial pad is established in a range from 50 mN to 400 mN.
In the individual wrapping body of the invention, the buckling strength of the peripheral portion of the interlabial pad is established in a range from 50 mN to 400 mN. When the buckling-strength of the peripheral portion is smaller than 50 mN, the peripheral portion is easily compressed and bent more than necessary. As a result, the peripheral portion tends to be lumped, thereby deteriorating wearing comfortableness. When larger than 400 mN, the peripheral portion is not deformed more than necessary when the peripheral portion comes into contact with the skin and thus wearing comfortableness cannot be offered to the wearer. In the present invention, however, it is possible to prevent warp of the peripheral portion of the interlabial pad during the wrapping process while maintaining preferable contact with the labia by establishing the buckling strength in the above-described range.
(8) The individual wrapping container in which an interlabial pad attached between labia is packaged, comprising a protective sheet for preventing contamination of the interlabial pad before use, and a discard sheet used for discarding a used interlabial pad, wherein: the protective sheet directly covers the interlabial pad before use to form an inner wrapping body and the discard sheet covers the inner wrapping body when the interlabial pad is packaged in the individual wrapping container; and a temporary closing member for releasably fixing the inner wrapping body and the discard sheet is provided on a surface where the inner wrapping body contacts the discard sheet and/or a surface where the discard sheet contacts the inner wrapping body.
The term “temporary closing member” as described above refers to a component for limiting free motions of the interlabial pad such that the interlabial pad is not shifted from an appropriate position where the interlabial pad is originally disposed within the individual wrapping container.
The individual wrapping container of the invention includes the protective sheet and the discard sheet. The protective sheet directly covers the interlabial pad before use to form the inner wrapping body and the discard sheet covers the inner wrapping body when the interlabial pad is packaged in the individual wrapping container. This structure allows the used interlabial pad to be wrapped in the discard sheet in which the pad before use has been packaged so as to discard the used pad. On the other hand, since the interlabial pad before use is packaged in the protective sheet, the interlabial pad before use can be attached in a clean condition without being contaminated by dirt, dust, germs etc. adhering thereto during discard of the used interlabial pad. Additionally, it is possible to wrap the used interlabial pad in the discard sheet which is non-permeable to liquid and discard it into a sanitary container, and subsequently to discard the empty protective sheet into a toilet closet immediately after taking the interlabial pad before use out of the protective sheet. It is also possible to reduce the possibilities of contamination of the surface of the interlabial pad before use when the wearer stooped to discard the used interlabial pad into the sanitary container and contamination of clothes and the body of the wearer and places inside the lavatory by menstrual blood which flows out of the vagina opening of the wearer during discarding the protective sheet.
The temporary closing member for temporarily and releasably fixing the inner wrapping body and the discard sheet is also provided on a surface where the inner wrapping body contacts the discard sheet and/or a surface where the discard sheet contacts the inner wrapping body. The temporary closing member prevents contamination of the surface of the interlabial pad which may be caused when the interlabial pad slips from the protective sheet inclined due to slight impact on or unbalanced placement of the protective sheet which covers the interlabial pad before use.
Moreover, since the individual wrapping container of the invention has a double-structure in which the discard sheet and the protective sheet are separated from each other, the action for separating the discard sheet and the protective sheet is not required. Thus, the steps for attaching the interlabial pad are facilitated compared with the individual wrapping container formed by a single sheet.
(9) The individual wrapping container according to (8), wherein the temporary closing member is releasable to such a degree that the inner wrapping body is not damaged when the inner wrapping body is separated from the discard sheet, and also has sufficient adhesion for re-adhering after separation.
The term “releasable” as described above refers to the capability of peeling the inner wrapping body from the discard sheet. The term “adhesion” refers to the adhesive property sufficient for adhering to a wall, a paper holder or other place.
In the individual wrapping container of the invention, the temporary closing member is releasable to such a degree that the inner wrapping body is not damaged when the inner wrapping body is separated from the discard sheet. This structure allows the inner wrapping body to be separated from the discard sheet without damaging the inner wrapping body, thereby maintaining a clean condition of the interlabial pad before use accommodated in the inner wrapping body without adhesion of dirt, dust, germs etc. to the pad before use. The temporary closing member of the individual wrapping container also has sufficient adhesion for re-adhering after separation. This structure allows the inner wrapping body before use to be affixed to a wall, a paper holder or other place. Since the temporary closing member of the inner wrapping body before use has adhesion sufficient for adhering to a wall, a paper holder or other place, the interlabial pad does not drop due to inclined attachment to a wall, a paper holder or other place or impact given to the inner wrapping body. Additionally, the inner wrapping body can be easily removed from the position where the inner wrapping body is temporarily fixed without breaking the protective sheet which may be caused when larger peeling force than the protective sheet strength is applied.
The protective sheet has a first surface and a second surface on the side where the protective sheet does not contact the interlabial pad, and the adhesive material is applied to either or both of the first and second surfaces. A region of at least 20 by 20 mm square where the adhesive material is not applied is provided on both surfaces of the protective sheet. This region secures a portion for holding the protective sheet covering the interlabial pad (a portion touched by the thumb and the forefinger) by the wearer, and prevents adhesion of the adhesive material on the protective sheet to the hand and resultant difficulty in handling of the protective sheet when the protective sheet is held and temporarily placed or the interlabial pad is taken out of the protective sheet.
(10) An individual wrapping container in which an interlabial pad attached between labia is packaged, wherein: the individual wrapping container is constituted by a wrapping sheet having a breaking line along which a part of the wrapping sheet can be separated; and the part separated along the breaking line becomes a discard sheet used for discarding a used interlabial pad.
The individual wrapping container of the invention is constituted by a single sheet of the wrapping sheet, and a part of the wrapping sheet can be separated. This structure allows the protective sheet for covering the new interlabial pad and the discard sheet used for discarding the used interlabial pad to be separated from each other. Since the discard sheet used for discarding the used interlabial pad is allowed to be separated, it is possible to hold the interlabial pad before use which is kept packaged and the discard sheet and the interlabial pad by one hand and the other, respectively, so as to cut off along the breaking line. Thus, accidental dropping of the interlabial pad before use is prevented at the time of separation.
(11) The individual wrapping container according to (10), wherein: the individual wrapping container includes at least an accommodating space for accommodating an interlabial pad before use and/or a used interlabial pad; and the accommodating space is formed by folding a part of the wrapping sheet where the breaking line is not located.
In the invention, a part of the wrapping sheet is folded to form a pocket in which the interlabial pad is accommodated. While the interlabial pad before use is being accommodated within the accommodating space, there is no possibility of dropping of the interlabial pad before use during separation along the breaking line. When the used interlabial pad is put into the accommodating space, the used pad can be discarded in a clean manner. Additionally, it is possible to provide two accommodating spaces. In the individual wrapping container of the invention which includes the accommodating space for accommodating the interlabial pad before use and an additional accommodating space on an area other than where the accommodating space for the pad before use is provided on the sheet, for example, the used interlabial pad can be accommodated in the additional accommodating space after separating the wrapping sheet into two parts along the breaking line, so that the used pad can be discarded more clean and smoothly.
(12) The individual wrapping container according to (10), wherein: the individual wrapping container includes at least an accommodating space for accommodating an interlabial pad before use and/or a used interlabial pad; and the accommodating space is a space formed between the wrapping sheet and a mini-sheet attached to the wrapping sheet.
In the individual wrapping container of the invention, the additional mini-sheet is overlapped on the wrapping sheet. This structure allows the accommodating space for the interlabial pad to be easily formed by simply sealing the mini-sheet on the upper side such that a space can be formed.
Additionally, the accommodating space may be divided into two to form a part for the interlabial pad before use and the other part for the used interlabial pad by sealing the accommodating space. A closing tape may be also provided at an end on the lateral side of the wrapping sheet where the interlabial pad is not packaged. In this case, the wrapping sheet is rolled from the side where the used interlabial pad is packaged and closed by the closing tape, thereby sealing the wrapping sheet so as to prevent the used interlabial pad from being dropped.
(13) A wrapping body comprising: individual wrapping bodies each including the individual wrapping containers according to any one of (1) through (6) or (8) through (12) and an interlabial pad packaged in the individual wrapping containers, or individual wrapping bodies according to (7) and an outer wrapping container for accommodating a plurality of the individual wrapping bodies, wherein a subdividing intermediate wrapping container for accommodating the two or more individual wrapping bodies to be sealed therein is provided within the outer wrapping container.
The wrapping body of the invention includes the individual wrapping bodies and the outer wrapping container for accommodating a plurality of the individual wrapping bodies. The subdividing intermediate wrapping container for accommodating the two or more individual wrapping bodies to be sealed therein is also provided within the outer wrapping container. Since the intermediate wrapping container, in other word the subdividing package for accommodating the two or more individual wrapping bodies is included in the outer wrapping container, it is possible to carry only this subdividing package. Additionally, when the wearer drops the subdividing package in the lavatory or other place, contamination of the individual wrapping bodies and the interlabial pads within the individual wrapping bodies is prevented.
(14) The wrapping body according to (13), wherein the intermediate wrapping container is disposed such that a clearance is provided between the intermediate wrapping container and an inner wall of the outer wrapping container.
In the wrapping body of the invention, the intermediate wrapping container is disposed such that a clearance is provided between the intermediate wrapping container and an inner wall of the outer wrapping body. When the outer wrapping container is accidentally dropped during conveyance or by the wearer, shock thus caused is absorbed by the clearance, thereby preventing the shock from being transmitted to the intermediate wrapping container. It is also possible to prevent transmission of the shock to the interlabial pad which is sealed in the individual wrapping body accommodated within the intermediate wrapping container.
(15) The wrapping body according to (13) or (14), wherein the intermediate wrapping container is made from an airtight material so that the individual wrapping bodies can be airtight-sealed therein.
In the wrapping body of the invention, the intermediate wrapping container is made from an airtight material so that the individual wrapping bodies can be airtight-sealed in the intermediate wrapping container which is filled with air. When the wearer accidentally drops the intermediate wrapping container in which a plurality of the individual wrapping bodies are sealed, this structure allows shock to be absorbed by air, thereby preventing transmission of the shock to the interlabial pads accommodated in the individual wrapping bodies. Thus, the interlabial pad can be attached without deterioration of the wearing comfortableness when the wearer accidentally drops the intermediate wrapping container in which a plurality of the individual wrapping bodies are sealed.
As described above, the individual wrapping container covering the interlabial pad has higher rigidity than that of the peripheral portion of the interlabial pad according to the present invention. Particularly, a region having high rigidity is provided on a portion covering the peripheral portion so as to prevent frequent warp of the peripheral portion of the interlabial pad accommodated in the individual wrapping container while it is being carried. Accordingly, provided herein is the individual wrapping container capable of preventing warp of the peripheral portion of the interlabial pad contained in the individual wrapping container and separation of the connection between the sheets as covering means. Also provided is the individual wrapping container capable of preventing contamination of the interlabial pad before use at the time of replacement. Further provided are the outer wrapping container and the intermediate wrapping container capable of inhibiting and avoiding load to be applied on the peripheral portion of the interlabial pad.
Preferred embodiments of the present invention are hereinafter described with reference to the appended drawings. In the description of the following embodiments, similar reference numerals are given to similar components, and explanation for similar components is omitted or briefly made. A. Individual Wrapping Container for Protecting Peripheral portion of Interlabial pad
As illustrated in
The interlabial pad 10 is attached between labia of a wearer. As illustrated in
The surface side sheet 12 and the back side sheet 14 covering the absorption member 16 have a surface side sheet front end 12a and a back side sheet front end 14a positioned on the pubis side during attachment, and a surface side sheet rear end 12b and a back side sheet rear end 14b positioned on the buttocks side during attachment, respectively, in the above-described vestibular floor contact region 13. In this embodiment, the surface side sheet front end 12a and the back side sheet front end 14a constitute the front end 10a of the peripheral portion 18 of the interlabial pad 10, and the surface side sheet rear end 12b and the back side sheet rear end 14b constitute the rear end 10b of the peripheral portion 18.
As illustrated in
The above-described individual wrapping container 20 illustrated in
The embossed seal 28 for joining the overlapped regions of the sheet body 22 constituting the individual wrapping container 20 may be provided throughout the peripheral portion of the individual wrapping container 20. Additionally, a closing tape 36 having adhesion may be provided at an unwrapped portion 35 formed by the overlapped regions of the sheet body 22 so as to make it easy to unwrap.
In the present invention, it is possible to prevent warp of the front end 10a which is easy to contact the clitoris of the wearer and the rear end 10b which is easy to contact the anus of the wearer during attachment in the peripheral portion 18 of the interlabial pad 10 as illustrated in
The protective region Y1 of the individual wrapping container 20 may be provided for protecting either the entire peripheral portion 18 of the interlabial pad 10 or only the vestibular floor contact region 13. Alternatively, the protective region Y1 of the individual wrapping container 20 may be provided for protecting only the front end 10a (the surface side sheet front end 12a and the back side sheet front end 14a) or the rear end 10b (the surface side sheet rear end 12b and the back side sheet rear end 14b).
The buckling strength of the protective region Y1 of the individual wrapping container 20 is preferably in a range from 100 mN to 2,000 mN. By establishing the strength in this range, warp of the peripheral portion 18 while carrying the individual wrapping body 1 can be prevented in the wrapping process. The buckling strength of the peripheral portion 18 of the interlabial pad 10 is preferably in a range from 50 mN to 400 mN.
The individual wrapping body 101 in this embodiment is different from the individual wrapping body 1 in the first embodiment in that more sheet bodies constituting an individual wrapping container 120 are provided in this embodiment than in the first embodiment. That is, a protective region Y2 is formed by additionally disposing a small sheet body 123 between a sheet body 122 and the interlabial pad 10 as illustrated in
The individual wrapping body 201 in this embodiment is different from the individual wrapping body 1 in the first embodiment in that a protective region Y3 is provided by embossing an embossed pattern 226 on a sheet body 222 constituting an individual wrapping container 220 in an area contacting the vestibular floor contact region 13 of the interlabial pad 10 as illustrated in
The embossed pattern 226 may be provided on the protective region Y3 of the sheet body 222, may be provided on an entire area of the sheet body 222 contacting the peripheral portion 18 of the interlabial pad 10, or may be formed on the entire sheet body 222.
The individual wrapping body 301 in this embodiment is different from the individual wrapping body 1 in the first embodiment in that an individual wrapping container 320 includes a protective region Y4 which is formed by a folded portion 328 produced by folding a part of a sheet body 322. This structure not only increases the buckling strength of the individual wrapping container 320 but also allows the protective region Y4 to have high rigidity and be formed at an appropriate position without requiring an additional component. Since an additional component which is used in the second embodiment is not required for forming the protective region Y4 in this embodiment, the material cost can be reduced.
Measuring Buckling Strength of Individual Wrapping Container
Component Material
Individual Wrapping Container
Examples of material for the individual wrapping container involve polyethylene, polypropylene, polyethylene terephthalate, polyvinyl alcohol, polylactate, polybutyl succinate, nonwoven fabrics, paper, and laminated material thereof each of which is 15 to 60 μm in thickness. Alternatively, a breathable film obtained by drawing a composite sheet of a resin and an inorganic filler may be used. More specifically, a film formed by mixing low density polyethylene (LDPE) resin and high density polyethylene (HDPE) resin and adjusting the basis weight per unit are in a range from 15 to 35 g/m2 may be used. Other examples include an individual wrapping container material having a film formed from polyethylene, polypropylene or others, or a material having a melt-blown surface formed by spraying melt-blown on nonwoven fabrics or paper on the inside surface of the individual wrapping container. Since the melt-blown is a collection of extrafine fibers and has a large surface area, a coefficient of static friction in an adequate range can be obtained. Additionally, the individual wrapping container preferably blocks off the color of the body fluid absorbed by the interlabial pad. For this purpose, pigment may be mixed in a range from 0.2% to 10%, or ink and the like may be printed. Examples of material for the individual wrapping container having breathability in a range from 0.040 Kpa·s/m to 1,000 KPa·s/m involve a breathable film obtained by drawing a composite sheet of a resin and an inorganic filler or by providing connected pores having been subjected to pore-opening treatment, and polyethylene, polypropylene, polyethylene terephthalate, polyvinyl alcohol, polylactate, polybutyl succinate, nonwoven fabrics, paper, and laminated material thereof having connected pores, each of which is 15 to 60 μm in thickness. More specifically, so-called SMS nonwoven fabrics including 6-10 gsm/5-20 gsm/6-10 gsm of spunbond/melt-blown/spunbond may be used. Since the melt-blown is a collection of extrafine fibers and has high barrier property due to its high density, adequate breathability can be obtained by adjusting the basis weight per unit area or other conditions of the melt-blown layer.
Surface Side Sheet of Interlabial Pad
Material which has water-permeability and liquid-hydrophilic property and gives no stimulation to the skin is used for the surface side sheet of the interlabial pad disposed on the body side. Examples of such material include pulp, chemical pulp, rayon, cotton, acetate, synthetic fibers, rayon or acetate which are physically embossed, chemical pulp bridged by a bridging material and crimped, each of which is used alone or combined. The sheet is manufactured by methods such as spunbonding, point-bonding, air-through, melt-blown, spunlacing and papermaking. Among these methods, spunlacing is the most preferable which is capable of intergangling fibers by hydroentanglement and of removing oil adhering to fibers by the water flow, since the outside surface of the interlabial pad preferably contains no oil, lubricant and the like which may increase slippage between the outside surface of the pad and the inside surface of the individual wrapping container.
Back Side Sheet of Interlabial Pad
The liquid-impermeable back side sheet included in the interlabial pad is made from a water-impermeable material which is capable of preventing leakage of menstrual blood retained by the absorption member out of the interlabial pad. Further, the back side sheet is made from material having moisture permeability, thereby reducing moisture and uncomfortableness during attachment. Examples of the back side sheet as described involve polyethylene, polypropylene, polyethylene terephthalate, polyvinyl alcohol, polylactate, polybutyl succinate, nonwoven fabrics, paper, and laminated material thereof, each of which is 15 to 60 μm in thickness. Alternatively, a breathable film obtained by drawing a composite sheet of a resin and an inorganic filler may be employed. More specifically, a film prepared using a low density polyethylene (LDPE) resin as a main component and adjusted to have a basis weight per unit area in a range from 15 to 35 g m2 may be used. Other examples include a back side sheet having a film formed from polyethylene, polypropylene or others, or a melt-blown surface formed by spraying melt-blown on nonwoven fabrics or paper on the outside surface of the interlabial pad. Since the melt-blown is a collection of extrafine fibers and has a large surface area, a coefficient of static friction in an adequate range can be obtained. B. Individual Wrapping Container for Preventing Contamination of Interlabial pad
In this embodiment, the individual wrapping body 501 includes the inside wrapping body 540 and the discard sheet 550 for accommodating the inner wrapping body 540 as illustrated in
In this embodiment, both sides of the protective sheet 534 in the width direction are folded in such a manner as to surround the interlabial pad 510, thereby forming the inner wrapping body 540 as illustrated in
When an unwrapped opening of the protective sheet 534 is opened in this embodiment, a back side sheet 514 of the interlabial pad 510 or a holding portion to be held at the time of attachment appear as illustrated in
Next, steps for wrapping the interlabial pad 510 before use in the protective sheet 534 in this embodiment are shown in
The dimension of the first fold “t” is determined such that more than half of the entire length of the interlabial pad 510 before use in a lateral direction is covered, preferably 5 to 60 mm. The dimension of the second fold “u” is determined such that the second fold “u” is overlapped on the outside surface of the first fold “t,” preferably 10 to 60 mm. The dimension of the overlapped portions of the first fold “t” and the second fold “u” is preferably 5 to 20 mm. The overlapped portions are closed by a known technique such as closing tape, hot melt adhesive, heat sealing and mating embossment so as to prevent entrance of dirt, dust etc. More specifically, the overlapped portions are closed by applying hot melt adhesive having a basis weight per unit area in a range from 5 to 10 g/m2 and a width from 1 to 3 mm on the inside surface of the protective sheet 534 in an area of 2 to 10 mm from the end of the second fold “u” in the overlapping direction. The overlapped ends of the protective sheet 534 in the vertical axis direction are heat embossed at the fusion temperature of the protective sheet 534 to be re-separably bonded to each other. More specifically, the protective sheet 534 is made from polyethylene film having a basis weight per unit area of 25 g/m2 which is heat sealed using an embossing pattern roll at a temperature from 70 to 120° C. for the upper axis roll and at a temperature from 90 to 140° C. for the lower axis roll. The embossing pattern roll used herein has embossments each having an area of 0.7 mm2 and disposed close to each other with a clearance of 1 mm between adjoining embossments with three rows of embossment parts at an angle of 45 degrees.
The term “apparent” refers to the minimum “length” of a distance between two points. This is a term definition just to make sure, since there is a case when the actual “length” refers to a “way” between two points along concave and convex portions (i.e., a distance between two points in a flat condition where concave and convex portions are spread out) in view of the production process.
As illustrated in
The length of the discard sheet 550 is equal to or larger than the length of the inner wrapping body 540A, specifically 80 to 300 mm in the vertical axis direction and 50 to 400 mm in the horizontal axis direction. The method for bonding the overlapped ends of the discard sheet 550 which ends extend in the vertical axis direction is the same as that for bonding the overlapped ends of the above-described protective sheet 534 which ends extend in the vertical axis direction. The method for closing the overlapped portions of the discard sheet 550 is not limited to the use of the closing tape 536A, but may be by a known technique such as heat sealing, mating embossment, and applying a small amount of adhesive along the overlapping direction.
The discard sheet 550 is not limited to the three-fold shape as illustrated in
The individual wrapping body 501B in this embodiment is different from the individual wrapping body 501 in the above-described fifth embodiment in that the inside wrapping body 540B has adhesive 538B as illustrated in
The adhesive 538B provided on the outside surface of the protective sheet 534 covering the interlabial pad 510 is required to be covered only by a single surface of the discard sheet 550 without extending over the overlapped portions of the discard sheet 550. More preferably, the individual wrapping body 501B is structured such that the side of the discard sheet 550 folded first is opposed to the adhesive 538B. Since the inner wrapping body 540B is kept attached to the discard sheet 550 until the discard sheet 550 is sufficiently spread out, accidental dropping of the interlabial pad 510 from the inside wrapping body 540B is prevented. After opening the discard sheet 550, the protective sheet 534 covering the interlabial pad 510 is taken out with the adhesive 538B attached to the outside surface of the protective sheet 534. Thus, the inner wrapping body 540B can be fixed to a wall, a paper holder or other place by use of the adhesion of the adhesive 538B. Accordingly, the inner wrapping body 540B can be temporarily placed, thereby preventing contamination of the surface of the interlabial pad 510 resulting from slipping of the pad 510 from the protective sheet 534 which may be caused at the time of discarding the used interlabial pad while holding the inside wrapping body 540B by hand.
The inner wrapping body 540C in this embodiment is different from the inner wrapping body 540 in the above-described fifth embodiment in that the inner wrapping body 540C is completely sealed by sealing three sides of a protective sheet 534C other than the folded portion thereof as illustrated in
The inner wrapping body 540D in this embodiment is different from the innner wrapping body 540 in the above-described fifth embodiment in that the inner wrapping body 540D is packaged such that the back side sheet or the holding portion of the interlabial pad 510 faces to an unwrapped opening 535D of a protective sheet 534D as illustrated in
The inner wrapping body 540E in this embodiment is different from the inner wrapping body 540 in the fifth embodiment in that the interlabial pad 510 is accommodated in a protective sheet 534E such that an unwrapped opening 535E of the protective sheet 534E is disposed perpendicularly to the longitudinal direction of the interlabial pad 510 as illustrated in
The individual wrapping container 520F in this embodiment is different from the example of the fifth embodiment in that the individual wrapping container 520F is formed by a successive wrapping sheet 551F as illustrated in
Additionally, the individual wrapping container 520F in this embodiment is different from the example of the fifth embodiment in that the individual wrapping container 520F is formed by a single sheet of the wrapping sheet 551F a part of which can be cut off. The individual wrapping container 520F illustrated in
In a modification of this embodiment, a folded end portion of a wrapping sheet 551H may be extended beyond a breaking line 553H toward the other end so as to form an accommodating space by the overlapped portions of the wrapping sheet 551H as illustrated in
As illustrated in
In this embodiment, an additional mini-sheet 557 is overlapped on a single sheet of the wrapping sheet 551J to form accommodating spaces J by the mini-sheet 557. The individual wrapping container 520J illustrated in
It is also possible to seal the mini-sheet 557 on the upper side so as to divide the encasement J into two.
Most Preferred Example of Interlabial Pad
It is preferable to fold the interlabial pad 510 in two along the longitudinal axis direction of the pad 510 with the surface side of the pad material disposed on the convex side, and wrap the two-folded pad 510 in the protective sheet 534. Since the two-folded interlabial pad 510 is disposed such that its convex side faces to the folded portion of the protective sheet 534 on the lower side of the overlapped regions, the back side of the pad material appears on the unwrapped opening side when the protective sheet 534 is opened. The reason for folding the interlabial pad 510 double is that the interlabial pad 510 is attached in a two-folded condition where its surface side faces to the inner surface of the labia while two parts of the back side face to each other. The interlabial pad 510 which is folded in advance with the surface side of the pad material disposed on the convex side can be taken out of the protective sheet 534 and attached without touching the surface side of the interlabial pad 510 by hand. Conversely, if the interlabial pad 510 is packaged in a flat condition without fold or in a folded with its back side disposed on the outside, an action for disposing the surface side of the pad material on the outside is required after taking out the interlabial pad 510. In this case, there is a possibility of contamination of the interlabial pad 510 before use by touching the surface side of the interlabial pad 510 by fingers when the interlabial pad 510 is folded to dispose the surface side of the pad material on the outside. However, such contamination is prevented in advance according to the present invention.
Dimensions of Interlabial Pad and Protective Sheet
The apparent length of the interlabial pad is preferably in a range from 50 to 160 mm in the longitudinal direction and in a range from 10 to 60 mm in the lateral direction. The length of the protective sheet covering the interlabial pad is only required to be equal to or larger than the length of the interlabial pad 510. More specifically, the length of the protective sheet is in a range from 75 to 200 mm in the vertical axis direction and in a range from 30 to 300 mm in the horizontal direction.
Structures of Protective Sheet and Discard Sheet
The outer surface of the protective sheet in which the interlabial pad is sealed is bonded to the discard sheet to form a structure. The bonded portions of the protective sheet and the discard sheet can be released and separated from each other. More specifically, adhesive material is provided substantially at the center of the outer surface of the protective sheet where the unwrapped opening is not formed so as to bond the protective sheet to the discard sheet. Hot melt in an amount of 5 to 10 g/m2 is applied to the adhesive area, which is the same as the above described adhesive material example. The portion of the discard sheet for receiving the adhesive material is made from a releasable material, or separating treatment is given to the discard sheet. The discard sheet is so sized as to be sufficient for wrapping the used interlabial pad for discard, and is folded and closed by the closing tape. The discard sheet may be folded in pleats or rolled up. The closing tape is the same as in the above-described example. The method for bonding the protective sheet and the discard sheet is not limited to the use of the adhesive material, but may be heat sealing and mating embossment. However, it is more preferable to employ adhesive material by which the protective sheet can be attached to any place in the lavatory for discarding the used interlabial pad using the discard sheet. In this structure, the interlabial pad is sealed in the protective sheet. If not sealed, the interlabial pad is dropped out while being carried by the wearer. The structure of the invention makes it possible to temporarily fix the interlabial pad sealed in the protective sheet to somewhere and then unfold the discard sheet after the interlabial pad and the discard sheet are separated.
When the discard sheet is separated from the protective sheet, the discard sheet folded in a compact size is not obstructive, thereby enhancing handling easiness. However, since the portion from which the protective sheet and the discard sheet are released and separated (the portion where those sheets are not bonded to each other by the adhesive material) is exposed, the protective sheet and the discard sheet may be released and separated while being carried by the wearer. There are other examples in which: the discard sheet is bonded to the inner surface of the protective sheet and sealed together with the interlabial pad; and the discard sheet and the interlabial pad are both sealed within the protective sheet in addition to the above-described example. However, it is not preferable to adopt these structures since the interlabial pad before use may be dropped from the protective sheet when the protective sheet is opened to take out the discard sheet.
Material for Protective Sheet
The protective sheet is made from a sheet having high barrier property. Examples of such material involve polyethylene, polypropylene, polyester, polyvinyl alcohol (PVA), polylactate, polybutylene succinate, nonwoven fabrics and paper, and laminated material thereof, each having a thickness of 15 to 60 μm. Antimicrobial treatment may be applied to these materials. Alternatively, the protective sheet may be formed by laminated tissue made of a pulp having a basis weight per unit area of 10 to 25 g/m2 and a thickness of 0.05 to 0.2 mm coated with 10 to 30 μm of PVA. More specifically, a polyethylene film having a basis weight per unit area of 25 g/m2 may be employed. It is more preferable that the protective sheet is made from material which can be thrown into a flush lavatory. For this purpose, the protective sheet is constituted by biodegradable material, water soluble material, and water dispersive material. This structure prevents contaminants such as dirt, dust and germs from contacting with the surface of the interlabial pad which contacts the inner surface of the labia at the time of temporarily placing the interlabial pad before use covered by the protective sheet so as to when the used interlabial pad is detached and discarded using the discard sheet, thereby avoiding secondary infection.
The “biodegradable” property refers to degradation of a substance to gas such as carbon dioxide or methane, water and biomass under a condition anaerobic or aerobic condition in the existence of germs such as actinomyces and other micro-organisms according to the processes in nature. The biodegrading property (biodegradation speed, biodegradation degree etc.) of the substance concerned is equal to that of material produced naturally such as a fallen leave or of a synthetic polymer commonly recognized as biodegradation under the same environmental condition. The “water dispersive” property is similar to hydrolysable property, in which fibers are easily dispersed into fragments at least small enough not to block piping of an ordinary lavatory in a large amount of water or water flow, though the dispersion does not occur in a limited amount of water (such as menstrual blood) during use. The “water soluble” property refers to a soluble property in a large amount of water or water flow, though the solubility does not occur in a limited amount of water (such as menstrual blood) during use.
Material for Discard Sheet
The discard sheet is made from material having high liquid-barrier property. This property prevents leakage of menstrual blood adhering to or absorbed by the used interlabial pad from the discard sheet, and allows the used interlabial pad to be wrapped in the discard sheet and discarded without contaminating the wearer's hands.
Adhesive Material
The adhesive material is formed by applying hot melt in a basis weight per unit area from 5 to 10 g/m2. The application pattern of the adhesive material may be selected from dots, lines, waves, spirals etc. Dots which are 1 to 3 mm in diameter are preferably applied to 30 to 70% of one side of the protective sheet. The adhesive material thus provided allows the inside wrapping body to be temporarily fixed on a wall or a paper holder without dropping of the interlabial pad due to tilting or shock, and to be easily removed from the temporary fixing position.
With respect to the region to which the adhesive material is applied, the protective sheet has a first region and a second region on a side where the protective sheet does not contact the interlabial pad, and the adhesive material is applied to either or both of the first and second regions. A region of at least 20 by 20 mm square where the adhesive material is not applied is provided on both surfaces of the protective sheet. This region secures a portion for holding the protective sheet covering the interlabial pad (a portion touched by the thumb and the forefinger) by the wearer, and prevents adhesion of the adhesive material on the protective sheet to the hand and resultant difficulty in handling of the protective sheet when the protective sheet is held and temporarily placed or the interlabial pad is taken out of the protective sheet.
The adhesive material is required to have adhesion sufficient for adhering to a wall, a paper holder or other place. For example, the adhesive material is obtained by fusion-mixing synthetic rubber resin as a chief component such as styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), styrene-ethylene/butadiene-styrene block copolymer (SEBS), styrene-ethylene/propylene-styrene block copolymer (SEPS) with tackifier such as terpene resin and rosin resin and plasticizer such as wax. More specifically, adhesive material formed by fusion-mixing 15 to 25% of SEBS, 15 to 35% of plasticizer and 40 to 70% of tackifier may be employed. In the pressure sensitive type hot melting, 0.1 to 1.0% of antioxidant, anti-fluorescent agent or other may be added.
Closing Tape
The closing tape may be formed by a film to which adhesive is applied on one side, by tissue to which adhesive is applied on one side so as to be thrown into a flush lavatory or by other known material, and is not limited to those.
Temporary Closing Member
The temporary closing member is made to be releasable to such a degree that the inner wrapping body is not damaged when the temporary closing member is released by applying release treatment to the protective sheet or affixing a release-treated material. The material to be release-treated may be selected from thin paper, nonwoven fabrics, laminated paper and a film. The releasing agent is preferably made from the silicone resin family, the fluororesin family or the octadecyl isocyanate family. More specifically, a sheet formed by thin paper coated with silicone resin may be used. For affixing the release-treated material to the protective sheet, the release-treated material is disposed such that the release-treated side faces to the protective sheet and the non-treated side faces to the discard sheet, and is affixed by the same material as used for the adhesive material.
Structure, Strength and Starting Position of Breaking Line
The breaking line is formed by alternately disposing breakable portions and unbreakable portions in the form of sawing machine stitches, for example. It is preferable to determine the length of the breakable portion in a range from 0.5 to 5 mm, the width thereof in a range of 3 mm or smaller, and the length of the unbreakable portion in a range from 0.5 to 3 mm. The breaking strength of the breaking line is preferably 0.2 to 3.0N/25 mm, more preferably 0.3 to 1.5N/25 mm when pulled in a direction perpendicular to the breaking line which is disposed at the center under a pulling condition of 25 mm width and 100 m/min. For visually indicating the starting position of the breaking line for the wearer, an arrow may be printed or a cutting shape (rounded end etc.) different from the shape at the end position may be provided in the vicinity of the starting position of the breaking line.
C. Outside Wrapping Container and Intermediate Wrapping Container for Protecting Individual Wrapping Body
As illustrated in
The cutting 614A is so formed as to extend from one edge of the upper face 610A through the front face 630A to another edge of the upper face 610A by a so-called half-cutting method which does not produce serrated edges like sawing machine stitches when opened. The half-cutting method also allows the separable portion of the lid 612A to be connected with the outer wrapping container 600A without adhesive.
As illustrated in
Shown in
Now, steps for assembling the side face 620A of the outer wrapping container 600A in this embodiment are described with reference to
In this embodiment, the intermediate wrapping container 650 and an instruction manual 660 appear when the lid 612A is opened using the opening portion 632A of the outer wrapping container 600A as illustrated in
As illustrated in
The number of the individual wrapping bodies 601 sealed within the intermediate wrapping container 650 is preferably 12. However, it is only required to be at least two, and is not specifically limited.
Additionally, a feature of the intermediate wrapping container 650 is that it is made from a non-breathable material. This prevents entrance of moisture from the outside to the inside of the intermediate wrapping container 650, thereby obtaining an almost stable amount of moisture in the intermediate wrapping container 650 regardless of outside environmental changes. Furthermore, since the individual wrapping body 601 is covered by the intermediate wrapping container 650 made from a non-breathable material, it is prevented that the original absorption ability of the interlabial pad which is chiefly composed of a water absorption material such as the small cellulose family and accommodated in the individual wrapping body 601 is degraded, due to moisture absorption by the interlabial pad before attachment, and that the rigidity of the interlabial pad itself is extremely lowered, especially the rigidity of the peripheral portion thereof. Accordingly, since moisture inside the intermediate wrapping container 650 is almost kept constant, the rigidity of the interlabial pad accommodated in the individual wrapping body 601, especially rigidity of the peripheral portion thereof is not adversely affected with ease by weather variations or accidental dropping of the intermediate wrapping container 650 containing a plurality of the individual wrapping bodies 601 in the lavatory by the wearer. Thus, the interlabial pad packaged in the individual wrapping body 601 having stable quality can be provided for the wearer.
As illustrated in
A plurality of the reinforcing sheets 654 may be provided, or a single sheet of the folded reinforcing sheet 654 may be included. Examples of material for the reinforcing sheet 654 involve paper, a heavy paper, a plastic, polyethylene, polypropylene, polyethylene terephthalate, polylactate, polybutyl succinate, nonwoven fabrics and paper, and laminated material thereof. Additionally, instructions on how to use the interlabial pad may be printed on the reinforcing sheet 654 with ink or other means. More specifically, a company name or brand name may be printed with ink or other means. It is also allowed to mix pigment in a range from 0.2 to 10% or to print the reinforcing sheet 654 with ink or others so as to make it difficult to visually recognize the interlabial pad itself contained in the intermediate wrapping container 650. Furthermore, instructions on how to open the individual wrapping body 601 or how to use the interlabial pad contained in the intermediate wrapping container 650 may be printed on the reinforcing sheet 654 with ink or other means.
In this embodiment, the outer wrapping container 600B is different from the outer wrapping container 600A in the thirteenth embodiment in that a cutting 614B extends from a middle portion of an upper face 610B through a front face 630B to another middle portion of the upper face 610B with a fold provided as illustrated in
The number of the intermediate wrapping containers 650 accommodated in the outer wrapping container 600B is preferably one or two. However, it is only required to be at least one, and is not specifically limited.
Dimensions of Outer Wrapping Container
The volume of the outer wrapping container is required to be larger than at least the entire volume of the plural individual wrapping bodies or the volume of the intermediate wrapping container covering those. More specifically, the length of the outer wrapping container is 0 to 80 mm, preferably 0 to 40 mm larger than the entire length of the plural individual wrapping bodies or the length of the intermediate wrapping container covering those. The width of the outer wrapping body is 0 to 80 mm, preferably 0 to 40 mm larger than the entire width of the plural individual wrapping bodies or the width of the intermediate wrapping container covering those. The height of the outer wrapping body is 0 to 80 mm, preferably 0 to 40 mm larger than the entire height of the plural individual wrapping bodies or the height of the intermediate wrapping container covering those.
Material for Outside Wrapping Container
Examples of material for the outer wrapping container include paper, plastic, laminated paper, and aluminum-evaporated paper.
Dimensions of Intermediate Wrapping Container
The volume of the intermediate wrapping container is required to be larger than at least the entire volume of the plural individual wrapping bodies. More specifically, the length of the intermediate wrapping container is 0 to 80 mm, preferably 0 to 40 mm larger than the entire length of the plural individual wrapping bodies. The width of the intermediate wrapping body is 0 to 80 mm, preferably 0 to 40 mm larger than the entire width of the plural individual wrapping bodies. The height of the intermediate wrapping body is 0 to 80 mm, preferably 0 to 40 mm larger than the entire height of the plural individual wrapping bodies. The proportion of air contained within the intermediate wrapping container is in a range from 5 to 60%, preferably in a range from 20 to 40%. More specifically described, the length, width and height of the intermediate wrapping container are 185 mm, 120 mm and 50 mm, respectively, when the entire length, width and height of the individual wrapping bodies are 135 mm, 85 mm and 35 mm, respectively. The proportion of contained air in this case is 36%.
Material for Intermediate Wrapping Container
Material used for the intermediate wrapping container is not specifically limited as long as it is non-moisture-permeable material. Examples of such material involve polyethylene, polypropylene, polyethylene terephthalate, polylactate, polybutyl succinate, laminated nonwoven fabrics and paper, and aluminum-evaporated nonwoven fabrics and paper, each of which is 15 to 80 μm in thickness. More specifically, a film chiefly made from high density polyethylene (HDPE) resin in an adjusted weight of 30 to 60 g/m2 may be employed. Additionally, a drawn or embossed film for enhancing resin orientation and thereby increasing its rigidity may be used.
The present invention can be utilized as an individual wrapping container capable of preventing deformation and damage of a peripheral portion of a interlabial pad.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2003-411090 | Dec 2003 | JP | national |
