hair dye container

The hair dye container addresses the issue of non-target area staining by employing a handle-integrated applicator with leaf bodies and comb portions to retain dye on hair, ensuring precise application.

JP7781195B2Active Publication Date: 2025-12-05MITSUBISHI PENCIL CO LTD
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Patent Information

Application Number
JP2024028547
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-02-28
Publication Date
2025-12-05
Estimated Expiration
2039-10-01

AI Technical Summary

Technical Problem

Existing hair dye containers risk staining areas other than the target area, such as the scalp, due to direct contact or liquid leakage between comb teeth.

Method used

A hair dye container with a detachable handle and applicator body featuring leaf bodies and comb portions, where leaf bodies are interposed between comb portions, utilizing capillary force to retain the dye and prevent liquid from adhering to non-target areas.

Benefits of technology

Prevents application liquid from adhering to areas other than the target area during application by using leaf bodies and comb portions to effectively distribute and retain the dye on hair.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a hair dyeing container capable of preventing a coating liquid from making the skin dirty at coating.SOLUTION: A hair dyeing container is such that: in the hair dyeing container detachably disposed with a grip part integrated with a coating body from a container storing a hair dyeing liquid, there is formed a coating body disposed with a sheet body part in which a plurality of sheet bodies are aligned at intervals, a plurality of comb parts having an external diameter larger than an external diameter of the sheet body by 1 mm or more, and a shaft part having the sheet bodies disposed in the outer periphery, and retaining the hair dyeing liquid by capillary force between the sheet bodies; and the plurality of sheet bodies are interposed between the comb part and the comb part.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a hair dye container for applying a hair dye to hair. [Background technology]

[0002] BACKGROUND ART Conventionally, some hair dye containers are used for applying liquid such as mascara for eye makeup (see Patent Documents 1 and 2).

[0003] The hair dye containers of Patent Documents 1 and 2 are structured to store liquid in an application section where sheets are stacked, and to apply the liquid to the hair of the target area.

[0004] In addition, some hair dye containers use an applicator part with multiple teeth protruding radially from a core material (see Patent Document 3), while others have comb teeth spaced at predetermined intervals on the applicator part so that the imaginary line on the outer diameter is wavy (see Patent Document 4).

[0005] The hair dye container may also be used to dye hair and other objects besides eyelashes. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-71406 [Patent Document 2] Japanese Patent Application Laid-Open No. 2017-23261 [Patent Document 3] Special Publication No. 2013-529534 [Patent Document 4] Japanese Patent Application Laid-Open No. 2007-175256 Summary of the Invention [Problem to be solved by the invention]

[0007] However, the hair dye containers of Patent Documents 1 and 2 do not have a comb part, so the leaves come into direct contact with the scalp, and there is a possibility that the scalp will be soiled with the coating liquid. Also, the hair dye containers of Patent Documents 3 and 4 store the coating liquid between the comb teeth, and if the spacing between the comb teeth is wide or the viscosity of the coating liquid is low, there is a possibility that the coating liquid will flow out and adhere to areas other than the target area, such as the scalp, and cause staining.

[0008] SUMMARY OF THE INVENTION In view of the above circumstances, the present invention aims to provide a hair dye container that can prevent the application liquid from adhering to areas other than the target area during application. [Means for solving the problem]

[0009] The present invention provides a hair dye container having a handle that is detachably attached to a container containing a hair dye liquid and is integrated with an applicator body, The applicator is configured to include a leaf body portion in which a plurality of leaf bodies are arranged at intervals, a plurality of comb portions each having an outer diameter 1 mm or more larger than the outer diameter of the leaf bodies, and a shaft portion in which the leaf body portions are provided on the outer periphery and which contains the hair dye liquid by the capillary force between the leaf bodies, The hair dye container is characterized in that a plurality of leaves are interposed between the comb portions. [Effects of the Invention]

[0010] According to the hair dye container of the present invention, an applicator is configured with a leaf body portion in which a plurality of leaf bodies are arranged at intervals, a plurality of comb portions having an outer diameter 1 mm or more larger than the outer diameter of the leaf bodies, and a shaft portion in which the leaf body portions are provided on the outer periphery and which contains hair dye liquid by the capillary force between the leaf bodies, and the comb portions and Since multiple leaf bodies are interposed between the comb part, when the user holds the handle and dyes their hair, they can move the applicator body against the hair and comb the hair with the multiple comb parts, and the comb parts prevent the leaf body part from coming into contact with areas other than the hair, such as the scalp, thereby providing excellent effects such as reliably preventing the application liquid from adhering to areas other than the target area during application. [Brief explanation of the drawings]

[0011] [Figure 1] 1A and 1B are overall views of a hair dye container according to an embodiment of the present invention, in which (a) is a longitudinal cross-sectional view and (b) is a front view. [Figure 2] 1A and 1B are explanatory diagrams illustrating the assembled state of the applicator body in the hair dye container of FIG. 1, with the applicator body being attached at an angle from the grip portion to the tip of the shaft, where (a) is an overall view from the back side of the applicator body, (b) is a longitudinal cross-sectional view along line BB of (a), (c) is a perspective view from the front, (d) is a view from the rear of (a), (e) is a side view rotated 90° from (a), (f) is a view from the front, (g) is a view of the back side rotated 180° from (a), and (h) is a perspective view from the back. [Figure 3] 1A and 1B are explanatory diagrams of the applicator body components of the hair dye container of FIG. 1, in which (a) is an overall view of the applicator body as seen from the front side, (b) is a longitudinal cross-sectional view along line BB of (a), (c) is a view from the rear of the applicator body, at the shaft attachment side, (d) is a cross-sectional view along line DD of (e), (e) is a side view rotated 90° from (a), (f) is a cross-sectional view along line FF of (e), (g) is a cross-sectional view along line GG of (e), (h) is a view from the front, (i) is a view from the back side, (j) is a perspective view from the rear, and (k) is a perspective view from the front. [Figure 4] 1A and 1B are explanatory diagrams of the shaft components of the hair dye container of FIG. 1, in which (a) is an overall view of the shaft as seen from the front side, (b) is a longitudinal cross-sectional view along line BB in (a), (c) is an enlarged oblique view of the tip, (d) is a view from the rear, (e) is a side view, (f) is a view from the front, (g) is a cross-sectional view along line GG in (e), (h) is an overall view as seen from the back side, and (i) is an oblique view from the front. [Figure 5] 2A and 2B are explanatory diagrams of the cap parts of the hair dye container of FIG. 1, where (a) is a longitudinal cross-sectional view, (b) is a view from the rear, (c) is a view from the front, (d) is a view from the front, and (e) is a perspective view from the front. [Figure 6] 2A to 2C are explanatory diagrams of components of the container body (bottle) of the hair dye container of FIG. 1, where (a) is a longitudinal cross-sectional view, (b) is a front view, and (c) is a perspective view from the applicator insertion side. [Figure 7]1A and 1B are explanatory diagrams of the components of the wiping stopper in the hair dye container of FIG. 1, in which (a) is a longitudinal cross-sectional view along line AA in (d), (b) is a view from the rear (the side where the applicator body is inserted), (c) is a front view, (d) is a view from the front, (e) is a perspective view from the rear, (f) is a side view rotated 90° from (c), and (g) is a perspective view from the front. [Figure 8] FIG. 1 is an explanatory diagram showing the structure of the applicator for hair dye Examples 1 to 7, and the results of investigations into scalp staining in relation to the viscosity and surface tension of the liquid. [Figure 9] FIG. 1 is an explanatory diagram showing the structure of the applicator for hair dye Examples 6 to 8, and the results of investigations into scalp staining in relation to the viscosity and surface tension of the liquid. [Figure 10] FIG. 2(a) is an explanatory diagram of the slit distance and liquid viscosity of the applicator body according to the embodiment, and FIG. 2(b) is an explanatory diagram of the dimensions of each part of the applicator body. [Figure 11] 5 is an explanatory diagram of the relationship between the liquid consumption rate and the liquid viscosity of the applicator body according to the embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0013] FIG. 1 is an overall view of the hair dye container according to the embodiment, FIG. 2 is an explanatory diagram of the assembled state in which the applicator body is attached at an angle to the shaft from the grip portion to the tip of the shaft, and FIGS. 3 to 7 are component diagrams of each part.

[0014] As shown in Figures 1 and 2, the hair dye container of the embodiment has a handle 14 that is integral with an applicator body 12 and can be attached and detached from a container 10 containing hair dye liquid, and is configured as an applicator body 12 having a leaf body portion 18 in which multiple leaf bodies 16 are arranged at intervals, multiple comb portions 20 with an outer diameter that is 1 mm or more larger than the outer diameter of the leaf bodies 16, and a shaft portion 22 on the outer periphery of the leaf body portions 18 that retains the hair dye liquid by the capillary force between the leaf bodies 16, 16, and multiple leaf bodies 16 are interposed between the comb portions 20.

[0015] Applicator part 12 is provided at a tip end 24 c of an axial shaft 24 that extends integrally from grip part 14 , at an angle relative to shaft 24 .

[0016] A scraping part 26 is fitted into the mouth of the container 10 to scrape off any excess hair dye liquid from the applicator body 12.

[0017] When using the hair dye container, as shown in Figure 2, the handle 14, which is integrated with the applicator body 12, is pulled out from the container 10 (see Figure 1), and the applicator body 12 is rubbed against the hairline or the area to be dyed to apply the hair dye liquid.

[0018] [Applicator body 12] The applicator body 12 has a plurality of rectangular leaflets 16 arranged at intervals in the leaflet portion 18, each having approximately the same outer diameter when viewed in the axial direction. The comb portion 20 has an outer diameter 1 mm or more larger than the outer diameter of the leaflets 16 and is formed on the outer periphery of the leaflets 16, for example, three leaflets 16, spaced apart in the leaflet portion 18, and protrudes in the form of two protrusions on one side of the leaflet portion 18. The center of the leaflet portion has a solid shaft portion 22 formed in an approximately cylindrical shape with a hollow 22a, and the shaft portion 22 is structured to retain hair dye liquid by capillary force between the leaflets 16 arranged on its outer periphery.

[0019] The hollow 22a of the shaft portion 22 is open from the front to the rear of the shaft portion 22, and a fitting rib 22b is formed at the rear of the hollow 22a so that the tip of the shaft 24 can be fitted and locked.

[0020] In addition, the comb portion 20 protrudes in a pair of angular shapes from one surface of the leaf body portion 18, which is approximately rectangular when viewed in the axial direction, and is configured to perform the function of combing hair when one surface of the leaf body portion 18 is rubbed against the target part.

[0021] Three (one example of a plurality) of leaf elements 16 are interposed between the comb portions 20 . The distance between the comb portions 20 is 1.2 mm or more.

[0022] At the distal end of applicator body 12, a plurality of spaced apart walls 22c are formed to protrude distally from shaft portion 22. The spacing between walls 22c functions to comb and arrange hair in fine areas.

[0023] [Shaft 24] The shaft 24 has a bowl-shaped portion 24a at its rear end that fits into the grip portion 14 (see FIGS. 1 and 2), and the bowl-shaped portion 24a has irregularities formed on its outer periphery, such as a flange, that fits into the grip portion 14. A rod-shaped shaft main body 24b extends forward from the bowl-shaped portion 24a. A small-diameter tip end 24c extends and bends at an angle of approximately 0 to 45° relative to the axial direction of the shaft main body 24b.

[0024] As shown in FIG. 4, a base portion 24c1 of the tip portion 24c has a stepped diameter smaller than that of the shaft body 24b.

[0025] As shown in Fig. 4(g), the stepped portion of base portion 24c1 is formed into an irregular semicircular shape, and when applicator body 12 (see Figs. 2 and 3) is attached, it prevents applicator body 12 from rotating with respect to tip portion 24c. Furthermore, as shown in Fig. 4(c), base portion 24c1 is formed with a plurality of ribs 24c2 that press from the inside when fitted into hollow 22a (see Fig. 3) of shaft portion 22 of applicator body 12. Furthermore, the tip of tip portion 24c is forked, and flange 24d is formed on the outer periphery so as to protrude, and flange 24d is structured to lock in place to prevent tip portion 24c from coming off when attached to hollow 22a of shaft portion 22.

[0026] [Gripping part 14] As shown in Figure 5, the gripping portion 14 is cap-shaped, and has an uneven portion 14a formed at the deepest part of the inside into which the bowl-shaped portion 24a of the shaft 24 fits, and a female threaded portion 14b formed in the center to screw into the mouth of a container.

[0027] [Container 10] As shown in Fig. 6, container 10 is a cylindrical container in which entry side 10a of applicator body 12 has a narrow diameter and a male thread is formed on the outer periphery of entry side 10a. Container 10 contains hair dye liquid in the product state shown in Fig. 1. In this case, the hair dye liquid is pooled in the lower part of container 10, and applicator body 12 is immersed in the liquid, so that the hair dye liquid is supplied to applicator body 12.

[0028] [Horoscope 26] As shown in FIG. 1, the squeezing part 26 is fitted into the inlet side part 10a of the container 10, and at the tip inside the tip of the container 10, there is formed a squeezing wall 26a that can be opened by elastic deformation, and slightly behind that, a passage wall 26b for the applicator body 12.

[0029] 7, squeezing wall 26a has slits 26a1 formed in a star shape radiating from the center, and passage wall 26b has circular passage holes 26b1 formed therein that are slightly larger than applicator body 12 (see FIG. 1). Enlarged diameter portion 26c is formed around the tip of squeezing part 26 to prevent it from coming off, and flange 26d is formed around the rear end.

[0030] As shown in FIG. 1, when the ironing portion 26 is fitted into the container 10, the enlarged diameter portion 26c faces the step below the inlet portion 10a to prevent it from coming off, and the flange 26d engages with the inlet portion 10a to position it so that it does not enter the container 10.

[0031] In the hair dye container of the embodiment, the viscosity of the hair dye liquid is preferably 2 to 130 mPa·s from the viewpoint of easy application to the hair. If the surface tension is less than 130 mPa·s, the hair dye applied to the hairline will run down the hair and reach the scalp, staining the scalp, while if it exceeds 130 mPa·s, it will be difficult to spread it thinly and evenly on the hair, which is undesirable. Furthermore, from the viewpoint of not staining the surrounding area or the scalp when applying it to the hair, it is desirable for the surface tension to be 22 to 55 mN / m. If the surface tension of this hair dye liquid is less than 22 mN / m, the hair dye applied to the hairline will run down the hair and reach the scalp, staining the scalp, while if it exceeds 55 mN / m, it will be difficult to retain the hair dye in the application area, and the liquid will easily splash during use, staining the surrounding area, which is undesirable.

[0032] Table 1 shows examples 1 to 8 of suitable hair dye solutions. [Table 1]

[0033] Figures 8 and 9 show the results of sensitivity tests on hair dye liquid Examples 1 to 8 (referred to as "Liquid Examples 1 to 8"), in which the distance between slits, the thickness of the leaf body, the distance between combs, and the viscosity and surface tension of the liquid in Liquid Examples 1 to 8 showed whether or not the liquid was absorbed between combs, and the resultant scalp staining.

[0034] The presence or absence of liquid uptake between the combs of the applicator was investigated when the combs were oriented sideways, downward, and upward, and the presence or absence of surface smearing was also investigated. If surface smearing was found, the result was NG, and if not, it was OK. Figure 10(b) shows the thickness t of the sheet 16, the distance δ between the slits, and the distance W between the combs (comb portions 20, 20) in the applicator 12.

[0035] [Test results mainly when changing the viscosity of the hair dye liquid] Figure 8 shows the test results using liquid Examples 7, 1 to 5, which have different liquid viscosities. The test results in Figure 8 are for the hair dye containers of Comparative Examples A, C, D, and G (abbreviated as "Comparative A" in Figure 8) and Examples B, E, F, and H (abbreviated as "Example B" in Figure 8).

[0036] [Comparative example A] In the hair dye container according to Comparative Example A, the distance between slits was 0.5 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 0.5 (mm).

[0037] In Comparative Example A, when Examples 7 and 1 to 5 were used, background staining occurred and the result was NG.

[0038] In Comparative Example A, when Examples 7, 1 to 3 were used, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps between the combs and stained the scalp. However, when the comb was facing upward, the liquid fell from the comb due to the influence of gravity, and the scalp was not stained. Also, when the comb was on each plate, the liquid moved to the comb due to gravity when the comb was facing downward. Low-viscosity liquids move easily, so the liquid fell into the gaps between the combs, causing more staining.

[0039] Furthermore, in Comparative Example A, when liquid examples 4 and 5 were used, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps between the combs. Even when the comb was facing upward, the liquid did not fall due to the high viscosity and gravity, causing the scalp to become dirty.

[0040] [Example A] This is a hair dye container according to Example A. In this case, the slit distance is 0.5 mm, and the sheet The thickness of the comb was 0.3 mm and the distance between the combs was 1.3 mm.

[0041] In the hair dye container of Example A, none of the liquid examples 7 and 1 to 5 caused any scalp staining and were OK.

[0042] In this case, the gaps between the combs were wide and the capillary force was weak, so the liquid did not get absorbed into the gaps and did not stain the scalp.The gaps between the slits were narrower than the gaps between the combs, so there was a difference in capillary force, and even when the comb was facing downwards, the liquid was retained between the slits without succumbing to gravity.

[0043] [Comparative example C] In the hair dye container of Comparative Example C, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 0.2 (mm).

[0044] In Comparative Example C, when Examples 7 and 1 to 5 were used, all of them caused background staining and were NG.

[0045] In this case, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps between the combs and stained the scalp. Regardless of the direction of the comb, the liquid was absorbed and ended up staining the scalp.

[0046] [Comparative Example D] In the hair dye container of Comparative Example D, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 0.7 (mm).

[0047] In Comparative Example D, there was background staining and it was NG.

[0048] In Comparative Example D, when Examples 7, 1, and 3 were used, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps and stained the scalp. However, when the comb was facing upward, the liquid fell due to the influence of gravity and was not absorbed, so the scalp was not stained.

[0049] In Comparative Example D, when using the liquids of Examples 4 and 5, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps between the combs and stained the scalp. Even when the comb was facing upward, the viscosity was high and the liquid did not fall due to the influence of gravity, causing the scalp to be stained.

[0050] [Example E] In the hair dye container according to Example E, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 1.2 (mm).

[0051] In the hair dye container of Example E, none of the liquid examples 7 and 1 to 5 caused any scalp staining and were OK.

[0052] In this case, the gaps between the combs were wide and the capillary force was weak, so the liquid did not get absorbed into the gaps and did not stain the scalp.The gaps between the slits were narrower than the gaps between the combs and the capillary force was strong, so even when the comb was facing downwards, the liquid was retained between the slits without succumbing to gravity and did not stain the scalp.

[0053] [Example F] In the hair dye container according to Example F, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 1.7 (mm).

[0054] In the hair dye container of Example F, none of the liquid examples 7 and 1 to 5 caused any scalp staining and were OK.

[0055] In this case, the gaps between the combs were wide and the capillary force was weak, so the liquid did not get absorbed into the gaps and did not stain the scalp.The gaps between the slits were narrower than the gaps between the combs and the capillary force was strong, so even when the comb was facing downwards, the liquid was retained between the slits without succumbing to gravity and did not stain the scalp. [Comparative Example G]

[0056] In the hair dye container of Comparative Example G, the distance between slits was 0.7 mm, the thickness of the sheet was 0.3 mm, and the distance between combs was 0.7 mm.

[0057] In Comparative Example G, when Examples 7 and 1 to 5 of the liquid were used, there was background staining and the result was NG.

[0058] In this case, if there was a comb on each plate, and the comb was facing downward, gravity would move the liquid to the comb. In particular, if the gap between the slits was wide and the capillary force was weak, the liquid would fall between the combs and stain the scalp.

[0059] [Example H] In the hair dye container according to Example Q, the distance between slits was 0.5 (mm), the thickness of the sheet was 0.5 (mm), and the distance between combs was 1.5 (mm).

[0060] In the hair dye container of Example K, none of the liquid examples 7 and 1 to 5 caused any scalp staining and were OK.

[0061] In this case, the gaps between the combs were wide and the capillary force was weak, so the liquid did not rise up between the combs. However, because the gaps between the slits were narrower than the gaps between the combs and there was a difference in the capillary force, the liquid was retained between the slits even when the combs were facing downwards, despite gravity.

[0062] [Test results mainly for changing the surface tension of the hair dye] Figure 9 shows the test results using liquids with different surface tensions, Examples 6, 7, and 8. The test results in Figure 9 are for the hair dye containers of Comparative Examples a, c, d, and g (abbreviated as "Comparative a" in Figure 9) and Examples b, e, f, and h (abbreviated as "Actual b" in Figure 9).

[0063] [Comparative example a] In the hair dye container of Comparative Example a, when the slit distance was 0.5 (mm), the thickness of the leaf body was 0.3 (mm), and the comb distance was 0.5 (mm), the hair was soiled and was NG.

[0064] In Comparative Example A, when Examples 6 and 7 were used, when a comb was placed on each plate, gravity caused the liquid to move to the comb when the comb was facing downward. Because the capillary force was particularly weak due to the low surface tension, the liquid fell between the combs, staining the scalp. When the surface tension increased, the liquid was more likely to be absorbed into the combs, staining the scalp even when the comb was facing sideways.

[0065] Furthermore, in Comparative Example a, when Liquid Example 8 was used, the surface tension was high and the capillary force was strong, so the liquid was absorbed into the gaps between the combs, causing the scalp to become dirty.

[0066] Example b In the hair dye container according to Example b, the distance between slits was 0.5 (mm), the thickness of the sheet was 0.5 (mm), and the distance between combs was 1.3 (mm).

[0067] In the hair dye container according to Example b, none of the liquid examples 6, 7, and 8 caused any scalp staining and were OK.

[0068] In this case, the gaps between the combs were wide and the capillary force was weak, so the liquid did not get absorbed into the gaps between the combs and did not stain the scalp. Even when the comb was facing downwards, the difference in capillary force between the slits prevented the liquid from falling onto the comb.

[0069] [Comparative example c] In the hair dye container according to Comparative Example c, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 0.2 (mm).

[0070] In the hair dye container according to Comparative Example c, all of Examples 6, 7, and 8 of the liquids caused scalp staining and were NG.

[0071] In this case, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps between the combs and the scalp became dirty.

[0072] [Comparative example d] In the hair dye container according to Comparative Example d, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 0.7 (mm).

[0073] In the hair dye container according to Comparative Example d, all of Examples 6, 7, and 8 of the liquids stained the scalp, and were NG.

[0074] In the hair dye container of Comparative Example d, the gaps between the combs were narrow and the capillary force was strong, so the liquid was absorbed into the gaps, leading to scalp staining. When the comb was facing upward, the low surface tension was unable to support the liquid, so the liquid fell into the gaps and did not stain the scalp. On the other hand, when the surface tension was high, the liquid did not fall and stained the scalp.

[0075] Example e In the hair dye container according to Example e, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 1.2 (mm).

[0076] In the hair dye container of Example e, none of the liquids of Examples 6, 7, and 8 caused any scalp staining and were OK.

[0077] In this case, the gaps between the combs were wide and the capillary force was weak, so the liquid did not get absorbed into the gaps between the combs. Even when the comb was facing downwards, the liquid did not fall onto the comb due to the difference in capillary force between the slits.

[0078] Example f In the hair dye container according to Example f, the distance between slits was 0.2 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 1.7 (mm).

[0079] In the hair dye container of Example f, none of the liquids of Examples 6, 7, and 8 caused any scalp staining and were OK.

[0080] In this case, the gaps between the combs are wide and the capillary force is weak, so the liquid does not get absorbed into the gaps between the combs. Even when the comb is facing downwards, the liquid does not fall onto the comb due to the difference in capillary force between the slits.

[0081] [Comparative Example g] In the hair dye container according to Comparative Example g, the distance between slits was 0.7 (mm), the thickness of the sheet was 0.3 (mm), and the distance between combs was 0.7 (mm).

[0082] In the hair dye container according to Comparative Example g, all of Examples 6, 7, and 8 of the liquids stained the scalp, and were NG.

[0083] In this case, if there was a comb on each plate, and the comb was facing downward, gravity would move the liquid to the comb. In particular, because the spaces between the combs (between the slits) were wide and the capillary force was weak, the liquid would fall between the combs and stain the scalp.

[0084] Example h In the hair dye container according to Example h, the distance between slits was 0.5 (mm), the thickness of the sheet was 0.5 (mm), and the distance between combs was 1.5 (mm).

[0085] In the hair dye container of Example e, none of the liquids of Examples 6, 7, and 8 caused any scalp staining and were OK.

[0086] In this case, the gaps between the combs are wide and the capillary force is weak, so the liquid does not get absorbed into the gaps between the combs. Even when the comb is facing downwards, the liquid does not fall onto the comb due to the difference in capillary force between the slits.

[0087] From the results of the Comparative Examples and Examples, it is understood that a hair dye liquid with a viscosity of 2 to 130 mPa·s or a surface tension of 22 to 55 mN / m is suitable.

[0088] Figure 10(a) shows the consumption rate (%) of hair dye from the hair dye container when the liquid viscosity is changed from 2 to 160 (mPa·s) for slit distances of 0.2, 0.5, and 0.7 (mm). Figure 11 plots the liquid consumption rate against the liquid viscosity for slit distances of 0.2, 0.5, and 0.7.

[0089] When the liquid viscosity reaches 150 (mPa·s), the liquid consumption rate decreases regardless of the slit gap, so it is understood that the effective range of liquid viscosity is 2 to 130 (mPa·s). The hair dye liquid is an example of the embodiment and is not limited to this. [Industrial Applicability]

[0090] The hair dye container of the present invention can be used for dyeing hair. [Explanation of symbols]

[0091] 10 containers 10a Inlet side 12 Applicator 14 Gripping part 14a Uneven part 14b Female thread 16 leaflets 18 leaflets 20 Comb 22 Shaft 22a hollow 22b Rib 22c wall 24 shaft 24a Bowl-shaped part 24b shaft body 24c Tip 24d flange 24c1 Base of tip 24c2 Tip rib 26 Training Club 26a Grinding Wall 26a1 Slit in the wall 26b Passage wall 26b1 Passage holes in passage walls 26c Expanded diameter part of the ironing part 26d Flange of the ironing part

Claims

1. A hair dye container having a handle that is integral with an applicator and can be detached from a container containing a hair dye solution, The applicator is configured to include a leaf body portion in which a plurality of leaf bodies are arranged at intervals, a plurality of comb portions each having an outer diameter 1 mm or more larger than the outer diameter of the leaf bodies and projecting in pairs in a horn-like shape on one surface, and a shaft portion on the outer periphery of which the leaf body portion is provided and which retains the hair dye liquid by the capillary force between the leaf bodies. The hair dye container is characterized in that a squeezing part is provided that is fitted into the inlet side of the container, and a squeezing wall that can be opened by elastic deformation is formed on the lower side of the container inside the squeezing part, with slits formed in a star shape radiating from the center, and a passage wall that has a circular passage hole larger than the applicator body is formed on the inlet side of the container.

2. A hair dye container as described in claim 1, characterized in that the tip of the shaft body extending from the grip portion is forked and has a flange protruding from its outer periphery, and the flange is designed to engage with the applicator body when the tip is attached to the hollow of the applicator body, the hair dye liquid has a viscosity within the range of 2 to 130 mPa·s and a surface tension within the range of 22 to 55 mN / m, and the applicator body has a thin tip that extends and bends at an angle of approximately 0 to 45° relative to the axial direction of the shaft body extending from the grip portion.

Citation Information

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