Patent Application
20210093068
This Nonprovisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 2019-181484 filed in Japan on 1 Oct. 2019, the entire contents of which are hereby incorporated by reference.
The present invention relates to a hair dye container for applying a hair dye to hair.
Conventional hair dye containers have been used to apply liquid such as mascara solution for make-up around the eyes, for example (see Patent Document 1 and Patent Document 2).
The hair dye containers of the Patent Documents 1 and 2 are constructed to apply a liquid to the hair in the target area with the retained liquid in a stack of fins of an applying part.
There are some hair dye containers that use an applying part with a plurality of teeth projecting radially from a core material (see Patent Document 3), and some that have comb teeth arranged at predetermined intervals in an applying part so that the virtual line of the outer diameter portions are formed in a wavy shape (see Patent Document 4).
In addition, hair dye containers may be used for dyeing of hair as well as eyelashes.
Japanese Patent Application Laid-open No. 2017-71406
Japanese Patent Application Laid-open No. 2017-23261
Japanese Patent Application Disclosure No. 2013-529534
Japanese Patent Application Laid-open No. 2007-175256
However, since the hair dye containers of Patents 1 and 2 have no comb structure, the fins directly contact the skin and may stain the skin with the application fluid. In addition, the hair dye containers of Patent Documents 3 and 4 are designed to hold the application fluid between the comb teeth, and if the comb teeth are widely spaced or the viscosity of the application fluid is low, the application fluid may flow out and adhere to and stain places, for example, the skin, other than the target part such as the hair.
In view of the above situation, it is therefore an object of the present invention to provide a hair dye container that can prevent an application fluid from adhering to places other than the target area at the time of application.
The present invention resides in a hair dye container, comprising: a container storing a hair dyeing fluid; an application body; and a grip integrated with the application body and configured to be attachable to and detachable from the container, wherein: the application body comprises a fin section having a plurality of fins arranged at intervals, a plurality of combs having an outer diameter of at least 1 mm larger than the outer diameter of the fins, and an axial core having the fin section provided there around to retain the a dyeing fluid by capillary action between the fins; and a plurality of the fins are interposed between the combs.
According to the hair dye container of the present invention, the application body is constructed of a fin section having multiple fins arranged at intervals, multiple combs having an outer diameter of 1 mm or larger than the outer diameter of the fins, an axial core having the fin section provided around it to retain the a dyeing fluid by capillary action between the fins, and multiple fins are interposed between the combs. Accordingly, when the user holds the grip and dyes the hair, this configuration allows the user to comb the hair with the multiple combs by moving the application body against the hair and can prevent the fin section from reaching places such as the skin surface other than the hair by means of the combs. Thus, the present invention can achieve excellent effect such as preventing the application fluid from sticking to places other than the target area during application.
Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in
The application body 12 is provided and attached at the tip 24c of an axial shaft 24 extending integrally from the grip 14, forming an angle with the shaft 24.
A scraper member 26 is fitted in the mouth of the container 10 so as to scrap off excess hair dyeing fluid more than needed for the application body 12.
In use of the hair dye container, as shown in
In the application body 12, the fin section 18 has a plurality of square-shaped fins 16 having approximately the same outer diameter with each other in axial view, arranged at intervals. The combs 20 each have an outer diameter of a least 1 mm larger than the outer diameter of the fins 16 and two projections on one side of the fin section 18, and are arranged so that multiple fins, for example, three fins 16 are interposed between adjacent combs 20 in the fin section 18. The central part of the fin section is the axial core 22, which is formed in an almost cylindrical shape with a hollow 22a therein. Arranged around the axial core 22 are the fins 16, which hold the hair dyeing fluid by capillary force there between.
The hollow 22a of the axial core 22 is penetrated to be open from the front to rear of the axial core 22. The rear end of the hollow 22a is formed with a fitting rib 22b, which catches the front end of the shaft 24 when the shaft is fitted into the hollow 22a.
The combs 20 are each configured to have a pair of horn-like protrusions on one side of the fin section 18 of a roughly rectangular shape in axial view, and provide the function of combing the hair when the aforementioned side of the fin section 18 is rubbed against a target place.
Three (one example of multiple) fins 16 are interposed between the combs 20. The spacing between the combs 20 is at least 1.2 mm.
A plurality of spaced walls 22c are formed in the front end of the application body 12, protruding forward from the axial core 22. The spacings of the multiple walls 22c provide the function of combing and tiding up the hair with their fine parts.
A bowl-shaped portion 24a that is inserted into the grip 14 (see
As shown in
The stepped part of the base 24c1 is formed in an irregular semi-circular shape as shown in
The grip 14 has a cap-shaped configuration, as shown in
As shown in
As shown in
In detail, as shown in
As shown in
Here, in use of the hair dye container of the embodiment, it is preferable that the hair dyeing fluid should have a viscosity of 2 to 130 mPa·s in view of facilitating application to the hair of head. If the viscosity of the hair dye is less than 2 mPa·s, the hair dye applied to the hairline, in particular, will reach the skin through the hair and stain the scalp, whereas if the viscosity exceeds 130 mPa·s, it is difficult to spread the hair dye thinly and evenly on the hair, which is undesirable. In addition, the surface tension is preferably set to be 22 to 55 mN/m from the viewpoint of not staining the surrounding area and the scalp when applying to the hair of the head. If the surface tension of the hair dye is less than 22 mN/m, the hair dye especially applied to the hairline will reach the skin through the hair and stain the scalp, whereas if the surface tension exceeds 55 mN/m, it is difficult to retain the hair dye in the applying part and the fluid is likely to splash and stain the surroundings during use, which is undesirable.
Table 1 shows Examples 1 to 8 of hair dyeing fluids suitable for dying hair.
The presence or absence of fluid suction between the combs of the application body was observed when the combs were oriented sideways, downward, and upward, respectively, and skin stains were observed. The result was considered to be “No Good” if there was a stain on the skin and to be “Good” if there was no stain on the skin.
In the hair dye container according to Comparative Example I, the slit spacing was 0.5 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.5 (mm).
In Comparative Example I, use of the fluid examples 7, 1 to 5 presented stains on the skin surface, hence Comparative Example I was “No Good”.
In Comparative Example I, because the spacing between the combs was narrow, hence the capillary force was strong, the fluid was sucked up between the combs and the skin surface was stained when the fluid examples 7, 1 to 3 were used. However, with the combs oriented upward, the fluid was pulled down from the combs due to gravity, hence did not stain the skin surface. When each fin had a comb and the combs were oriented downward, the fluid moved to the combs due to gravity. The low-viscosity fluid moved easily and the fluid was pulled down between the combs, making stains worse.
Moreover, in Comparative Example I, because the comb spacing was narrow, hence the capillary force was strong, the fluid was sucked up between the combs when the fluid examples 4 to 5 were used. Even when the combs were oriented upward, the fluid did not run off due to high viscosity under the effect of gravity, so that the skin surface was stained.
In a hair dye container of Example II, the slit spacing was 0.5 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 1.3 (mm).
In the hair dye container of Example II, all the fluid examples 7 and 1 to 5 did not cause any stain on the skin surface, so Example II was “Good”.
In this case, because the comb spacing was wide, hence the capillary force was weak, the fluid was not sucked up between the combs and did not stain the skin. Since the slit spacing was narrower than the comb spacing so that there was a difference in capillary force, the fluid was held between the slits without yielding to gravity even when the combs were oriented downward.
In a hair dye container of Comparative Example III, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.2 (mm).
In Comparative Example III, use of the fluid examples 7 and 1 to 5 caused stains on the skin surface for all cases so Comparative Example III was “No Good”.
In this case, the comb spacing was narrow, hence the capillary force was strong, so that the fluid was sucked up between the combs and the skin surface was stained.
Regardless of the orientation of the combs, the fluid was sucked up and resulted in staining the skin surface.
In a hair dye container of Comparative Example IV, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.7 (mm).
Comparative Example IV had stains on the skin surface, hence was “No Good”.
In Comparative Example IV, because the comb spacing was narrow, hence the capillary force was strong, the fluid was sucked up between the combs and the skin surface was stained when the fluid examples 7, 1 to 3 were used. However, with the combs oriented upward, the fluid was pulled down from the combs due to gravity, hence did not stain the skin surface.
In Comparative Example IV, because the comb spacing was narrow, hence the capillary force was strong, the fluid was sucked up between the combs, causing stains on the skin surface when the fluid examples 4 to 5 were used. Even when the combs were oriented upward, the fluid did not run off due to high viscosity under the effect of gravity, so that the skin surface was stained.
In a hair dye container for Example V, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 1.2 (mm).
In the hair dye container of Example V, all the fluid examples 7 and 1 to 5 did not cause any stain on the skin surface, so Example V was “Good”.
In this case, because the comb spacing was wide, hence the capillary force was weak, the fluid was not sucked up between the combs and did not stain the skin surface. Since the slit spacing was narrower than the comb spacing hence stronger capillary force acted, the fluid was held between the slits without yielding to gravity even when the combs were oriented downward.
In a hair dye container of Example VI, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 1.7 (mm).
In the hair dye container of Example VI, all the fluid examples 7 and 1 to 5 did not cause any stain on the skin surface, so Example VI was “Good”.
In this case, because the comb spacing was wide, hence the capillary force was weak, the fluid was not sucked up between the combs and did not stain the skin surface. Since the slit spacing was narrower than the comb spacing hence stronger capillary force acted, the fluid was held between the slits without yielding to gravity even when the combs were oriented downward.
In a hair dye container of Comparative Example VII, the slit spacing was 0.7 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.7 (mm).
In the Comparative Example VII, use of the fluid examples 7, 1 to 5 presented stains on the skin surface, so Comparative Example VII was “No Good”.
In this case, when each fin had a comb and the combs were oriented downward, the fluid moved to the combs due to gravity. In particular, when the slit spacing was wide, hence the capillary force was weak, the fluid ran between the combs and stained the skin surface.
In a hair dye container of Example VIII, the slit spacing was 0.5 (mm), the fin thickness was 0.5 (mm), and the comb spacing was 1.5 (mm).
In the hair dye container of Example VIII, all the fluid examples 7 and 1 to 5 did not cause any stain on the skin surface, so Example VIII was “Good”.
In this case, because the comb spacing was wide, hence the fluid was not sucked up between the comb. Since the slit spacing was narrower than the comb spacing so that there was a difference in capillary force, the fluid was held between the slits without yielding to gravity even when the combs were oriented downward.
In a hair dye container of Comparative Example a, when the slit spacing was 0.5 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.5 (mm), stains on the skin surface were found, so Comparative Example a was “No Good”.
In Comparative Example a, when each fin had a comb and the combs were oriented downward, the fluid of the fluid examples 6 and 7 moved to the combs due to gravity. In particular, since the fluid was low in surface tension presenting a weak capillary force, the fluid ran between the combs, staining the skin surface. As the surface tension of the fluid increases, the fluid was liable to be sucked between the combs, staining the skin surface even when the comb was oriented sideways.
In Comparative Example a, when the fluid example 8 was used, the surface tension was high, hence capillary force was strong, so the fluid was sucked up between the combs, staining the skin surface.
In a hair dye container of Example b, the slit spacing was 0.5 (mm), the fin thickness was 0.5 (mm), and the comb spacing was 1.3 (mm).
In the hair dye container of Example b, all the fluid examples 6, 7, and 8 did not cause any stain on the skin surface, and were “Good”.
In this case, the capillary force was weak because the combs spacing was wide, so the fluid did not get sucked up between the combs and cause any stains on the skin surface. Even when the combs were oriented downward, the fluid did not run onto the combs due to the difference of the combs in capillary force from the slits.
In a hair dye container of Comparative Example c, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.2 (mm).
In the hair dye container of Comparative Example c, all of the fluid examples 6, 7, and 8 had stains on the skin surface and were “No Good”.
In this case, because the comb spacing was narrow so a strong capillary force acted there between, the fluid was sucked up between the combs, causing stains on the skin surface.
In a hair dye container of Comparative Example d, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.7 (mm).
In the hair dye container of Comparative Example d, the fluid examples 6, 7 and 8 all had stains on the skin surface and were “No Good”.
In the hair dye container of Comparative Example d, because the comb spacing was narrow so a strong capillary force acted there between, the fluid was sucked up between the combs, causing stains on the skin surface. With the combs oriented upward, the fluid could not be supported by the low surface tension and was pulled down between the slits, hence did not cause stains on the skin surface. On the other hand, with the fluid with a high surface tension, the fluid did not run and the skin surface was stained.
In a hair dye container for Example e, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 1.2 (mm).
In the hair dye container of Example e, all the fluid examples 6, 7, and 8 did not cause any stain on the skin surface, and were “Good”.
In this case, the capillary force was weak because the combs spacing was wide, so the fluid did not get sucked up between the combs. Even when the combs were oriented downward, the fluid did not run onto the combs due to the difference of the combs in capillary force from the slits.
In a hair dye container for Example f, the slit spacing was 0.2 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 1.7 (mm).
In the hair dye container of Example f, all the fluid examples 6, 7, and 8 did not cause any stain on the skin surface, and were “Good”.
In this case, the capillary force was weak because the combs spacing was wide, so the fluid did not get sucked up between the combs. Even when the combs were oriented downward, the fluid did not run onto the combs due to the difference of the combs in capillary force from the slits.
In a hair dye container for Comparative Example g, the slit spacing was 0.7 (mm), the fin thickness was 0.3 (mm), and the comb spacing was 0.7 (mm).
In the hair dye container of Comparative Example g, the fluid examples 6, 7 and 8 all had stains on the skin surface and were “No Good”.
In this case, when each fin had a comb and the combs were oriented downward, the fluid moved to the combs due to gravity. In particular, because the slit spacing was wide, hence the capillary force was weak, the fluid ran between the combs and stained the skin surface.
In a hair dye container for example h, the slit spacing was 0.5 (mm), the fin thickness was 0.5 (mm), and the comb spacing was 1.5 (mm).
In the hair dye container of Example e, all the fluid examples 6, 7, and 8 did not cause any stain on the skin surface, and were “Good”.
In this case, the capillary force was weak because the combs spacing was wide, so the fluid did not get sucked up between the combs. Even when the combs were oriented downward, the fluid did not run onto the combs due to the difference of the combs in capillary force from the slits.
From the results of the above Comparative Examples and Examples, it is understood that the hair dyeing fluid is suitable when having a viscosity in the range of 2 to 130 mPa·s or a surface tension of 22 to 55 mN/m.
It is understood that when the fluid viscosity is around 150 (mPa·s), the fluid consumption ratio decreases regardless of slit spacing.
The embodiment is a mere example and is not limited to use with hair dyeing fluids.
The hair dye container of the present invention can be used for hair dyeing.
10 container
10
a mouth part
12 application body
14 grip
14
a concave and convex portion
14
b female thread
16 fin
18 fin section
20 comb
22 axial core
22
a hollow
22
b rib
22
c wall
24 shaft
24
a bowl-shaped portion
24
b shaft body
24
c tip
24
d flange
24
c
1 tip base
24
c
2 tip rib
26 scraper member
26
a scraping wall
26
a
1 slits in the scraping wall
26
b passage wall
26
b
1 passage hole in the passage wall
26
c large-diametric portion of the scraper member
26
d flange of the scraper member
| Number | Date | Country | Kind |
|---|---|---|---|
| 2019-181484 | Oct 2019 | JP | national |
