Paste cosmetic and coloring method

Abstract

To provide a paste cosmetic having good persistence of coloration after being applied to the skin, and a coloring method using the same.SOLUTION: A film-forming step 110 applies the paste cosmetic to an eyebrow portion M (skin) on the face. A coating area CA1 is set on the eyebrow portion M. After a predetermined amount of the paste cosmetic is placed on a cotton swab T (application tool), the paste cosmetic is applied to the coating area CA1 using the cotton swab (Figure 3(A)). As a result, a coating film CF1 composed of the paste cosmetic is formed. The thickness of the coating film CF1 only needs to be such that the coating area CA1 can be colored by the paste cosmetic. By forming the coating film CF1, a colored region GC1 (broken line in the figure) is formed on the skin of the coating area CA1 (Figure 3(B)). A film-removal step 120 removes the coating film CF1 in an undried state using a new cotton swab T (Figure 3(C)). At this time, the coating film CF1 is removed such that the colored region GC1 remains on the skin.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a paste-like cosmetic and a coloring method. [Background technology]

[0002] BACKGROUND ART Skin coloring compositions have been known for coloring a part of the skin, such as an arm or a leg, or a part of the face, such as the eyebrow area, to a desired color.

[0003] Known skin coloring compositions of this type include, for example, those containing an aqueous extract of gardenia (for example, Patent Document 1). However, the skin coloring composition described in Patent Document 1 does not provide long-lasting coloring after application to the skin. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2008-527361 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object of the present invention is to provide a paste-like cosmetic that provides good color retention after application to the skin, and a coloring method using the same. [Means for solving the problem]

[0006] The paste-like cosmetic of the present invention is characterized by comprising a main ingredient and an acid dye, having a pH of 6 or less, and using the acid dye to color the skin.

[0007] It is preferable that the paste-like cosmetic does not contain any film-forming material, or that the content of the film-forming material in the entire paste-like cosmetic is 1% by weight or less.

[0008] It is preferable that the paste-like cosmetic is for coloring the eyebrow area using the acid dye. The main ingredient contains water and alcohol, and the content of the main ingredient in the entire paste-like cosmetic is preferably 80% by weight or more and 95% by weight or less.

[0009] The alcohol preferably includes ethanol and benzyl alcohol, and the content of the ethanol in the main agent is greater than the content of the benzyl alcohol in the main agent.

[0010] The coloring method of the present invention is characterized by comprising a coating film forming step of forming a coating film of the above-mentioned paste-like cosmetic on the eyebrow area, and a coating film removing step of removing the coating film so that the colored portion of the eyebrow area remains.

[0011] It is preferable that the time from the completion of the coating film forming step to the start of the coating film removing step is within 5 minutes.

[0012] It is preferable that the method further comprises an overcoat coating film forming step, which is carried out after the coating film removing step, in which an overcoat coating film of the paste-like cosmetic is formed on the colored portion, and an overcoat coating film removing step, which is carried out after the overcoat coating film forming step, in which the overcoat coating film applied to the eyebrow portion is removed so that the colored portion in the overcoat coating film forming step remains.

[0013] It is preferable that natural eyebrow hair grows in the eyebrow area to which the paste cosmetic is applied.

[0014] The coloring method of the present invention is characterized by comprising a coating film formation step of forming a coating film of the above-mentioned paste-like cosmetic on the skin, and a coating film removal step of removing the coating film so that the colored portion of the skin remains.

[0015] It is preferable that the method further comprises an overcoat coating film forming step, which is carried out after the coating film removing step, in which an overcoat coating film of the paste-like cosmetic is formed on the colored portion, and an overcoat coating film removing step, which is carried out after the overcoat coating film forming step, in which the overcoat coating film applied to the skin is removed so that the colored portion in the overcoat coating film forming step remains. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide a paste-like cosmetic that has good coloring durability after application to the skin, and a coloring method using the same. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a flow chart showing an overview of a coloring method. [Figure 2] (A) is an explanatory diagram showing an outline of the application area set in the eyebrow area, (B) is an explanatory diagram showing an outline of the colored part provided in the eyebrow area, and (C) is an explanatory diagram showing an outline of the colored part and the overcoated colored part provided in the eyebrow area. [Figure 3] (A) is an explanatory diagram showing an overview of the eyebrow portion before a coating film is formed. (B) is an explanatory diagram showing an overview of the eyebrow portion after a coating film is formed. (C) is an explanatory diagram showing an overview of the eyebrow portion when the coating film is removed. (D) is an explanatory diagram showing an overview of the eyebrow portion after the coating film is removed. [Figure 4] (A) is an explanatory diagram showing an outline of the eyebrow portion before the formation of the recoat coating film. (B) is an explanatory diagram showing an outline of the eyebrow portion after the formation of the recoat coating film. (C) is an explanatory diagram showing an outline of the eyebrow portion when the recoat coating film is removed. (D) is an explanatory diagram showing an outline of the eyebrow portion after the recoat coating film is removed. [Figure 5] FIG. 10 is a flowchart showing an outline of a coloring method (modification). [Figure 6] FIG. 10 is a flowchart showing an outline of a coloring method (modification). DETAILED DESCRIPTION OF THE INVENTION

[0018] The paste-like cosmetic of this embodiment is applied to the skin in order to color the skin to a predetermined color.

[0019] The paste-like cosmetic of the present embodiment contains a main ingredient, an acid dye, and a pH adjuster.

[0020] The main ingredient preferably contains water and alcohol, and the content of the main ingredient is, for example, in the range of 50% by weight to 90% by weight based on the total weight of the paste-like cosmetic.

[0021] As the water, purified water, distilled water, ion-exchanged water, pure water, ultrapure water, etc. can be used.

[0022] The water content is, for example, preferably in the range of 50% by weight to 90% by weight, more preferably 55% by weight to 85% by weight, and even more preferably 60% by weight to 80% by weight, relative to the total amount of the paste-type cosmetic.

[0023] Examples of alcohols include alcohols such as ethyl alcohol, isopropyl alcohol, and benzyl alcohol; glycols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, and polyethylene glycol; and glycerols such as glycerin, diglycerin, and polyglycerin.

[0024] Furthermore, among alcohols, it is preferable to use those that have the effect of promoting coloring by acid dyes or those that have the effect of increasing the fixing power of coloring by acid dyes. Examples of alcohols that have the effect of promoting coloring by acid dyes include benzyl alcohol, and examples of alcohols that have the effect of increasing the fixing power of coloring by acid dyes include ethyl alcohol and isopropyl alcohol. It is preferable that the content of alcohols that have the effect of increasing the fixing power of coloring by acid dyes be greater than the content of alcohols that have the effect of promoting coloring by acid dyes.

[0025] The alcohol content is, for example, preferably in the range of 5% by weight to 40% by weight, more preferably 10% by weight to 35% by weight, and even more preferably 15% by weight to 30% by weight, relative to the total weight of the paste-type cosmetic.

[0026] The content of alcohol, which has the effect of increasing the fixing power of coloring with acid dyes, is, for example, preferably in the range of 5% by weight to 35% by weight, more preferably 10% by weight to 30% by weight, and even more preferably 15% by weight to 30% by weight, relative to the total amount of the paste-type cosmetic.

[0027] The content of the alcohol, which has the effect of promoting coloring with an acid dye, is, for example, preferably in the range of 2% by weight to 10% by weight, more preferably 3% by weight to 10% by weight, and even more preferably 5% by weight to 10% by weight, relative to the total amount of the paste-type cosmetic.

[0028] The acid dye is not particularly limited, but a suitable example is a tar-based dye. Tar-based dyes can be broadly classified based on their chemical structure, and examples include nitro dyes, azo dyes, nitroso dyes, triphenylmethane dyes, xanthene dyes, quinoline dyes, anthraquinone dyes, and indigo dyes. Azo dyes and / or triphenylmethane dyes are particularly preferred, and these may be in the form of alkali metal salts. Examples of nitro dyes include Yellow 403 (1), azo dyes include Red 2, Red 102, Red 201, Red 227, Red 502, Red 503, Red 504, Red 506, Orange 205, Orange 402, Yellow 4, Yellow 5, Yellow 402, Yellow 406, Yellow 407, Brown 201, and Black 401, nitroso dyes include Green 401, triphenylmethane dyes include Blue 1, Blue 202, Blue 203, Blue 205, Green 3, Green 205, and Green 402, and xanthane dyes include Examples of ten dyes include Red No. 3, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 230 (1), Red No. 230 (2), Red No. 231, Red No. 232, Red No. 401, Orange No. 201, Orange No. 207, Yellow No. 201, Yellow No. 202 (1), and Yellow No. 202 (2). Examples of quinoline dyes include Yellow No. 203. Examples of anthraquinone dyes include Blue No. 204, Blue No. 403, Green No. 201, Green No. 202, Purple No. 201, and Purple No. 401. Examples of indigo dyes include Blue No. 2 and Blue No. 201.Among these, Red No. 2, Red No. 3, Red No. 102, Red No. 104, Red No. 105, Red No. 106, Yellow No. 4, Yellow No. 5, Green No. 3, Blue No. 1, Blue No. 2, Red No. 201, Red No. 227, Red No. 230, Red No. 231, Red No. 232, Orange No. 205, Orange No. 207, Yellow No. 202, Yellow No. 203, Green No. 201, Blue No. 202, Blue No. 203, Blue No. 205, Brown No. 201, Red No. 401, Red No. 503, Red No. 504, Red No. 506, Orange No. 402, Yellow No. 402, Yellow No. 403, Yellow No. 406, Yellow No. 407 Preferred are Yellow 4, Green 204, Red 2, Red 102, Red 227, Green 3, Blue 1, Blue 205, Yellow 403, Red 106, Red 201, Orange 205, Black 401, Green 201, Purple 401, and their alkali metal salts. Particularly preferred are one or more selected from Red 227, Blue 1, Black 401, Orange 205, Yellow 4, and their alkali metal salts. Suitable examples of the alkali metal salt include sodium salts and potassium salts. These acid dyes can be used alone or in combination.

[0029] The content of the acid dye is, for example, preferably in the range of 0.1% by weight to 5.0% by weight, more preferably 0.2% by weight to 3.0% by weight, and even more preferably 0.3% by weight to 1.5% by weight, relative to the total weight of the paste-type cosmetic.

[0030] The pH adjuster may be an organic acid or an inorganic acid. Organic acids include acetic acid, propionic acid, glycolic acid, citric acid, lactic acid, tartaric acid, malic acid, mandelic acid, oxalic acid, succinic acid, fumaric acid, and maleic acid. Inorganic acids include hydrochloric acid and phosphoric acid. The content of the pH adjuster in the entire paste-like cosmetic is preferably 0.005% by weight or more and 1% by weight or less.

[0031] The paste-like cosmetic of this embodiment preferably contains a thickener. It is preferable to use a known water-soluble polymer as the thickener. The water-soluble polymer that serves as the thickener has, for example, a hydrophilic group such as a hydroxyl group, a carboxy group, an amino group, or an amide group that forms an association complex with water. Examples of water-soluble polymers that have hydrophilic groups include polyacrylic acid-based polymers such as carboxyvinyl polymers, polyacrylic acid amides, (acrylic acid / alkyl methacrylate) copolymers, (hydroxyethyl acrylate / sodium acroyldimethyltaurate) copolymers, (sodium acrylate / sodium acryloyldimethyltaurate) copolymers, and (ammonium dimethyltaurate acrylate / vinylpyrrolidone) copolymers.

[0032] The blending amount of the water-soluble polymer is preferably 0.01% by weight or more and 20% by weight or less, more preferably 0.1% by weight or more and 10% by weight or less, and even more preferably 1% by weight or more and 8% by weight or less, based on the total paste-form cosmetic. The blending amount of the polyacrylic acid-based polymer is preferably 0.2% by weight or more, more preferably 0.5% by weight or more and 10% by weight or less, and even more preferably 1% by weight or more and 5% by weight or less, based on the total paste-form cosmetic.

[0033] The paste-like cosmetic of the present embodiment preferably does not contain a film-forming resin.

[0034] The film-forming resin is not particularly limited as long as it forms a film, and examples thereof include at least one of emulsions of homopolymers or copolymers selected from one or more monomers selected from acrylic acid, methacrylic acid, or their (C1 to C8) alkyl esters or derivatives thereof, emulsions of polyvinyl acetate, polyvinyl alcohol, polyvinylpyrrolidone, and vinylpyrrolidone-vinyl acetate copolymers.

[0035] The paste-like cosmetic of this embodiment may contain a small amount of film-forming resin. The content of these film-forming resins is preferably 1% by weight or less, calculated as solid content (resin content), relative to the total amount of the paste-like cosmetic. This is because if the content of this film-forming resin exceeds 1% by weight, a film is likely to be formed.

[0036] Furthermore, in addition to the above-mentioned components, the paste-like cosmetic of this embodiment may contain optional components used in ordinary cosmetics, such as emulsifiers, antistatic agents, bulking agents, softeners, moisturizers, preservatives, antioxidants, viscosity adjusters, fragrances, etc., in appropriate amounts within a range that does not impair the effects of the present invention.

[0037] The pH of the paste-type cosmetic of this embodiment is 6 or less due to the coloring with the acid dye. Note that, in order to enhance the coloring properties of the acid dye, the pH of the paste-type cosmetic is preferably 2 or more and 5 or less, and more preferably 2 or more and 4 or less. If the pH of the paste-type cosmetic exceeds 6, the dyeing ability on the eyebrow area will decrease, and if the pH is less than 2, it may cause skin irritation. Note that the pH of the paste-type cosmetic can be measured in an environment of 25°C using a glass electrode pH meter.

[0038] The paste-like cosmetic of this embodiment can be prepared by a conventional method. It can be produced by blending at least one acid dye, a base ingredient, a pH adjuster, and a thickener in the above-mentioned content ranges, and then stirring and mixing the ingredients uniformly. For example, the base ingredient, such as an acid dye and water, can be stirred until uniform using a general-purpose disperser, and then the pH adjuster, thickener, etc. can be added, and the mixture can be stirred until uniform using a disperser or a homomixer to prepare the paste-like cosmetic.

[0039] From the viewpoints of stability and application, the viscosity of the paste-type cosmetic of this embodiment, at a temperature of 25°C and a shear rate of 3.83 s-1 (1 rpm), is preferably 100 mPa·s or more and 150,000 mPa·s or less. A more preferred range within the above viscosity range varies depending on the types of ingredients contained in the eyebrow cosmetic, but it is even more preferably 200 mPa·s or more and 130,000 mPa·s or less. A viscosity value of 100 mPa·s or more allows for application without dripping, while a viscosity value of 150,000 mPa·s or less allows for smooth application to the eyebrows. The viscosity of the paste-type cosmetic can be measured according to the liquid viscosity measurement method (JIS Z8803; 2011) using a single-cylindrical viscometer (B-type viscometer manufactured by Eiko Seiki Co., Ltd.).

[0040] Thus, when using the paste-type cosmetic of this embodiment, any applicator can be used as long as it can be applied to the eyebrow area (skin) of the face to dye the eyebrow area, and examples of such applicators include cotton swabs, brushes, spatulas, as well as applicators in containers with brushes, containers with spatulas, bottles, and tubes. The shape and structure of the applicator used are not particularly limited. However, considering the step of removing the coating film as described below, it is preferable to use an applicator (e.g., a cotton swab) made of a material capable of absorbing the paste-type cosmetic (e.g., a fibrous material such as cotton).

[0041] Next, a coloring method for coloring the eyebrow area (skin) of the face using the paste-like cosmetic of this embodiment will be described.

[0042] As shown in FIG. 1, the coloring method 100 includes a coating film forming step 110, a coating film removing step 120, a recoat coating film forming step 130, and a recoat coating film removing step 140.

[0043] In the film formation step 110, a paste-type cosmetic is applied to the eyebrow area of ​​the face. As shown in FIG. 2(A), an application area CA1 is set in the eyebrow area M (skin). The application area CA1 is set to include the area where the eyebrows GG (natural hair) grow and the surrounding area. Therefore, the outline of the application area CA1 forms the desired eyebrow shape. A predetermined amount of the paste-type cosmetic is applied to a cotton swab T (applicator), and then the cotton swab T is used to apply the paste-type cosmetic to the application area CA1 (FIG. 3(A)). This forms a film CF1 made of the paste-type cosmetic. The thickness of the film CF1 may be any thickness that allows the application area CA1 to be colored with the paste-type cosmetic. By forming the film CF1, a colored portion GC1 (shown by the dashed line in the figure) is formed on the skin in the application area CA1 (FIG. 3(B)).

[0044] In the film removal step 120, the wet film CF1 is removed using a new cotton swab T (FIG. 3(C)). At this time, the film CF1 is removed so that the colored portion GC1 of the skin remains. For example, it is preferable to remove the film CF1 by lightly tracing the skin in the application area CA1 with the cotton swab T (FIG. 3(D)).

[0045] Here, the term "wet coating film" refers to a coating film that is in a fluid state.

[0046] Thus, by the coating film removal step 120, a colored portion GC1 appears in the coating area CA1 (FIG. 2(B)).

[0047] The recoating film forming step 130 is performed after the film removing step 120, and involves applying a paste-type cosmetic over the colored portion of the skin. As shown in FIG. 4(A), the recoating area CA2 where the recoating is performed is set to be a portion of the application area CA1 where eyebrows GG (natural hair) do not grow. A predetermined amount of the paste-type cosmetic is applied to a cotton swab T (applicator), and then the cotton swab T is used to apply the paste-type cosmetic to the recoating area CA2 (FIG. 4(B)). This forms a recoating film CF2 made of the paste-type cosmetic. The thickness of the recoating film CF2 may be any thickness that allows the recoating area CA2 to be colored with the paste-type cosmetic. With the formation of the recoating film CF2, a colored portion GC1 and a recoating colored portion GC2 (indicated by the dashed dotted line in the figure) appear on the skin in the recoating area CA2.

[0048] The overcoat film removal step 140 is performed after the overcoat film formation step 130, and involves removing the undried overcoat film CF2 using a new cotton swab or the like (FIG. 4(C)). At this time, the overcoat film CF2 is removed so that the overcoat colored portion GC2 remains together with the colored portion GC1. For example, it is preferable to remove the film CF2 by lightly tracing the skin in the overcoat area CA2 using a cotton swab T (FIG. 4(C)).

[0049] As a result, the overcoated colored portion GC2 (dotted line in the figure) appears on the skin together with the colored portion GC1 (dashed line in the figure) (Figure 4(D)), and is colored a darker color than the colored portion GC1 (dashed line in the figure) (Figure 2(C)).

[0050] The paste-like cosmetic of this embodiment has a predetermined pH and a predetermined composition, so that it colors the skin in a short time. That is, the formation of the coating film CF1 forms a colored portion GC1 on the skin in the application area CA1. For this reason, it is preferable to perform the coating film formation step 110 and the coating film removal step 120 consecutively.

[0051] Similarly, by forming the overcoat coating film CF2, an overcoat colored portion GC2 is formed on the skin of the overcoat area CA2, so it is preferable to perform the overcoat coating film formation step 130 and the overcoat coating film removal step 140 consecutively.

[0052] In this way, when the paste-like cosmetic of this embodiment is used, the colored portion is revealed by removing the coating film without drying the paste-like cosmetic. Therefore, by performing the coating film formation step 110 and the coating film removal step 120, the person performing the coloring can confirm the colored portion and immediately determine whether or not a recoat is necessary. Similarly, by performing the recoat coating film formation step 130 and the recoat coating film removal step 140, the person performing the coloring can confirm the colored portion GC2 and immediately determine whether or not a recoat is necessary.

[0053] Furthermore, since the paste cosmetic of the present embodiment does not contain or contains almost no film-forming resin, even if the paste cosmetic is applied to the area of ​​the eyebrows where the eyebrows (natural hair) grow, no film is formed, and therefore damage to the eyebrows due to peeling of the formed film, etc. can be avoided.

[0054] The paste-like cosmetic of this embodiment can be removed with an alkaline remover, and therefore will not come off even when sweat or face washing is performed with a weakly acidic or neutral face wash.

[0055] In the above embodiment, it is preferable that the coating film formation step 110 and the coating film removal step 120 are performed consecutively. However, the time from the completion of the coating film formation step 110 until the start of the coating film removal step 120 is 5 minutes or less, preferably 3 minutes or less, more preferably 1 minute or less, even more preferably 30 seconds or less, and particularly preferably 15 seconds or less. Furthermore, between the coating film formation step 110 and the coating film removal step 120, a drying step 115 (FIG. 5) in which the solvent contained in the coating film is evaporated or a settling step 117 (FIG. 6) in which the coating film is left as is may be performed. Similarly, it is preferable that the overcoat coating film formation step 130 and the overcoat coating film removal step 140 are performed consecutively. However, the time from the completion of the overcoat coating film formation step 130 until the start of the overcoat coating film removal step 140 is 5 minutes or less, preferably 3 minutes or less, more preferably 1 minute or less, even more preferably 30 seconds or less, and particularly preferably 15 seconds or less. Furthermore, between the overcoat coating film formation step 130 and the overcoat coating film removal step 140, a drying step 125 (FIG. 5) for evaporating the solvent contained in the coating film or a leaving step 127 (FIG. 6) for leaving the coating film as it is may be performed.

[0056] In the above embodiment, a coloring method was performed in which a paste-like cosmetic was used to color the eyebrow area (skin) of the face, but the present invention is not limited to this, and the paste-like cosmetic may be used to color skin other than the eyebrow area (skin) (for example, the face, forehead, nose, cheeks, neck, arms, etc.). [Example]

[0057] Paste-type cosmetics (samples 1 to 3) having the formulations shown in Table 1 below were prepared.

[0058] [Table 1]

[0059] (Experiment 1) Using Sample 1, the coloring method of Fig. 5 (film formation step 110, leaving step 117, and film removal step 120) was performed on the eyebrow area under atmospheric pressure and room temperature. In leaving step 117, the film formed in film formation step 110 was left to stand without any action. The leaving step 117 was performed for 10 seconds.

[0060] (Experiment 2) The coloring method of Figure 5 (film formation step 110, film-standing step 117, and film-removal step 120) was carried out in an atmospheric pressure, room temperature environment in the same manner as in Experiment 1, except that the time for the film-standing step 117 was set to 20 seconds.

[0061] (Experiment 3) The coloring method of Figure 5 (film formation step 110, film-standing step 117, and film-removal step 120) was carried out in an atmospheric pressure, room temperature environment in the same manner as in Experiment 1, except that the time for the film-standing step 117 was set to 30 seconds.

[0062] (Experiment 4) The coloring method of Figure 5 (film formation step 110, film-standing step 117, and film-removal step 120) was carried out in an atmospheric pressure, room temperature environment in the same manner as in Experiment 1, except that the time for the film-standing step 117 was set to 40 seconds.

[0063] (evaluation) In Experiments 1 to 4, the resulting colored areas on the skin were visually inspected, and the color intensity did not change in any case. From this, it can be said that the coloring of the skin is achieved by performing the film removal step 130 after the film formation step 110, even without performing a drying step. Furthermore, it can be said that the length of the leaving step 117 keeps the color intensity of the colored areas on the skin constant. The color intensity in coloring can be adjusted by the number of times the color is applied, so anyone can easily adjust the color intensity.

[0064] (Experiment 5) Using Sample 1, the coloring method of Fig. 5 (film formation step 110, standing step 117, film removal step 120, overcoat film formation step 130, standing step 137, and overcoat film removal step 140) was performed on the eyebrow area under atmospheric pressure and room temperature. In standing steps 117 and 137, each film was left standing without any action. The standing steps 117 and 137 were performed for 10 seconds.

[0065] (Experiment 6) The coloring method of FIG. 5 was carried out in the same manner as in Experiment 5, except that the time for which the standing steps 117 and 137 were carried out was set to 20 seconds, under atmospheric pressure and room temperature.

[0066] (Experiment 7) The coloring method of FIG. 5 was carried out in the same manner as in Experiment 5, except that the time for which the standing steps 117 and 137 were carried out was set to 30 seconds, under atmospheric pressure and room temperature.

[0067] (Experiment 8) The coloring method of FIG. 5 was carried out in the same manner as in Experiment 5, except that the time for which the standing steps 117 and 137 were carried out was set to 40 seconds, under atmospheric pressure and room temperature.

[0068] (evaluation) In Experiments 5 to 8, the resulting colored areas on the skin were visually inspected, and the color intensity remained unchanged in all cases. From this, it can be said that multiple coats of color are applied to the skin by performing the multiple coat removal step 140 after the multiple coat film formation step 130, without performing a drying step. Furthermore, it can be said that the length of the resting steps 117 and 137 keeps the color intensity of the colored areas on the skin constant. Since the color intensity in coloring can be adjusted by the number of multiple coats, anyone can easily adjust the color intensity.

[0069] (Experiment 11) The coloring method of FIG. 5 (film formation step 110, leaving step 117, and film removal step 120) was carried out in the same manner as in Experiment 1, except that Sample 2 was used.

[0070] (Experiments 12-14) Except for using Sample 2, the coloring method of FIG. 5 (coating film forming step 110, leaving step 117, and coating film removing step 120) was carried out in the same manner as in Experiments 2 to 4.

[0071] (Experiment 15) Except for using sample 2, the coloring method of Figure 5 (coating film formation step 110, standing step 117, coating film removal step 120, overcoat coating film formation step 130, standing step 137, and overcoat coating film removal step 140) was performed in the same manner as in Experiment 5.

[0072] (Experiments 15-18) Except for using sample 2, the coloring method of Figure 5 (coating film formation step 110, leaving step 117, coating film removal step 120, recoating coating film formation step 130, leaving step 137, and recoating coating film removal step 140) was performed in the same manner as experiments 2 to 4.

[0073] (Experiments 21-24) Except for using Sample 3, the coloring method of FIG. 5 (coating film forming step 110, leaving step 117, and coating film removing step 120) was carried out in the same manner as in Experiments 1 to 4.

[0074] (Experiments 25-28) Except for using sample 3, the coloring method of Figure 5 (coating film formation step 110, leaving step 117, coating film removal step 120, overcoating film formation step 130, leaving step 137, and overcoating film removal step 140) was performed in the same manner as experiments 5 to 8.

[0075] (evaluation) In Experiments 11-14 and 21-24, the resulting colored skin areas were visually inspected, and the color intensity did not change in any case. From this, it can be said that the coloring of the skin is achieved by performing the film removal step 130 after the film formation step 110, even without performing a drying step. Furthermore, it can be said that the length of the leaving step 117 keeps the color intensity of the colored skin constant. The color intensity in coloring can be adjusted by the number of times the color is applied, so anyone can easily adjust the color intensity.

[0076] In Experiments 15-18 and 25-28, the resulting colored areas on the skin were visually inspected, and the color intensity remained unchanged in all cases. This suggests that multiple coats of color are applied to the skin by performing the multiple coat removal step 140 after the multiple coat formation step 130, even without performing a drying step. Furthermore, the length of the resting steps 117 and 137 ensures that the color intensity of the colored areas on the skin remains constant. The color intensity can be adjusted by the number of coats applied, so anyone can easily adjust the color intensity.

[0077] (Comparative sample 1) Experiments 41 to 44 were conducted using Fujiko Eyebrow Tint SVR 01 Chocolate Brown (sold by Kanabo Co., Ltd., manufactured by Fujiko Co., Ltd.) as a paste-type cosmetic (Comparative Sample 1). The ingredients of Comparative Sample 1 included water, ethanol, BG, dihydroxyacetone, polyvinyl alcohol, 1,2-hexanediol, PVP, polysorbate 80, sodium chloride, phenoxyethanol, fragrance, citric acid, Blue 1, and Red 227. The pH of Comparative Sample 1 was 6.

[0078] (Experiment 41) Except for using Comparative Sample 1, the coloring method of FIG. 5 (film formation step 110, leaving step 117, and film removal step 120) was carried out in the same manner as in Experiment 1.

[0079] (Experiments 42-44) Except for using Comparative Sample 1, the coloring method of FIG. 5 (coating film forming step 110, leaving step 117, and coating film removing step 120) was carried out in the same manner as in Experiments 2 to 4.

[0080] (evaluation) In Experiments 41 to 44, the resulting colored areas on the skin were visually inspected, and the coloring remained the same in intensity, but was still very light. Furthermore, during the coating removal step 130, a film formed on the surface of the coating, and the residue of the film became entangled in the eyebrows or adhered to the skin, making it difficult to remove cleanly.

[0081] (Experiments 45-48) The coloring method of Figure 5 (coating film formation step 110, standing step 117, coating film removal step 120, overcoat coating film formation step 130, standing step 137, and overcoat coating film removal step 140) was performed in the same manner as Experiments 5 to 8, except that Comparative Sample 1 was used.

[0082] (evaluation) In Experiments 45 to 48, when the recoating coating film forming step 130 was performed, the colored portion in the coating film forming step 110 became fluid and separated from the eyebrow portion. As a result, recoating was not possible.

[0083] The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention. [Explanation of symbols]

[0084] 100 Coloring Methods 110 Coating film formation step 115 Drying process 117 Standing process 120 Paint Removal Step 125 Drying process 127 Standing process 130 Overcoat coating film formation step 137 Still Step 140 Overcoat removal step T Cotton swab CA1 application area CA2 Overcoat area CF1 coating CF2 multi-coat coating GC1 colored part GC2 painted coloring section GG eyebrows M Eyebrow area T Cotton swab

Claims

1. The main agent and an acid dye; The pH is 6 or less, A paste-like cosmetic preparation characterized in that it uses the acid dye to color the skin.

2. 2. The paste-like cosmetic according to claim 1, wherein the cosmetic does not contain a film-forming material.

3. 2. The paste-type cosmetic according to claim 1, wherein the content of said film-forming material in the entire paste-type cosmetic is 1% by weight or less.

4. The acid dye is used to color the eyebrow area.

4. The paste-like cosmetic material according to claim 1, wherein the cosmetic material is a paste-like cosmetic material.

5. The base agent contains water and alcohol, 5. The paste-type cosmetic according to claim 4, wherein the content of the main ingredient in the entire paste-type cosmetic is 80% by weight or more and 95% by weight or less.

6. The alcohol is Ethanol and benzyl alcohol, 6. The paste-like cosmetic according to claim 5, wherein the content of the ethanol in the main component is greater than the content of the benzyl alcohol in the main component.

7. a film-forming step of forming a film of the paste-like cosmetic composition according to claim 4 on the eyebrow area; a coating film removing step of removing the coating film so that the colored portion of the eyebrow portion remains; A coloring method comprising:

8. 8. The coloring method according to claim 7, wherein the time between the completion of the coating film forming step and the start of the coating film removing step is within 5 minutes.

9. a recoating film forming step, which is carried out after the coating film removing step, of forming a recoating film of the paste-like cosmetic on the colored portion; 9. The coloring method according to claim 8, further comprising a step of removing the overcoat coating film applied to the eyebrow area, which is carried out after the overcoat coating film forming step, so that the colored portion in the overcoat coating film forming step remains.

10. 10. The coloring method according to claim 9, wherein natural eyebrow hair grows on the eyebrow area to which the paste-like cosmetic is applied.

11. a film-forming step of forming a film of the paste-like cosmetic composition according to any one of claims 1 to 3 on the skin; a coating film removal step of removing the coating film so that the colored portion of the skin remains; A coloring method comprising:

12. a recoating film forming step, which is carried out after the coating film removing step, of forming a recoating film of the paste-like cosmetic on the colored portion; 12. The coloring method according to claim 11, further comprising a step of removing the overcoat coating film applied to the skin after the overcoat coating film forming step, so that the colored portion formed in the overcoat coating film forming step remains.

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