Hair dye composition (cosmetic)

Abstract

To provide a hair-dyeing composition having stable hair-dyeing power even to the difference of hair quality for the purpose of remarkably suppressing stains on the skin, a bathtub and a washstand which cannot be realized by a conventional hair-dyeing composition.SOLUTION: The ink composition contains at least one dye selected from an HC dye, a basic dye, a direct dye, and an acidic dye and contains a hydrophobically modified polyether urethane.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a hair dye composition that has viscosity characteristics suitable for use, is less likely to stain the skin or a bathtub, and dyes hair stably regardless of hair type. [Background technology]

[0002] Hair dyes fall into the cosmetics category and can be classified as non-bleaching hair colors.

[0003] Representative examples of hair dyes include semi-permanent hair dyes containing direct dyes such as acid dyes, basic dyes, HC dyes, and nitro dyes.

[0004] When dyeing gray or bleached hair to a darker shade with cosmetics such as hair dyes or hair cleansers, the amount of dye compounded increases, which can cause concerns about staining the skin and bathtub. To prevent this, gloves and combs are used, but the cost of the materials and the problem of staining the bathtub remain difficult to alleviate.

[0005] In addition, in the case of color shampoos, which are hair cleansers that contain dyes, the viscosity is reduced by the dyes and the dyeability is reduced by the surfactants. To solve this problem, Patent Document 1 proposes a skin protectant, which is a method for preventing skin staining, comprising an application step of applying the skin protectant to the skin, and a coating step of volatilizing the volatile liquid medium to form the coating on the skin. Patent Document 2 discloses a detergent composition containing a specific hydrophobically modified polyether urethane and an anionic surfactant and / or an amphoteric surfactant. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2023-124341 [Patent Document 2] Patent Publication No. 2024-74749 Summary of the Invention [Problem to be solved by the invention]

[0007] However, these inventions are concerned with pre-treatment agents that prevent staining of hair color or thickening of shampoo, but do not address the prevention of staining of skin, bathtubs, or washbasins while dyeing.

[0008] Hair dyes contain a lot of dye to achieve a deep color, so there are concerns about staining the skin and staining the bathtub and sink. Using a brush and gloves can reduce skin staining, but this creates a problem with the cost of materials. Furthermore, brushes and gloves cannot prevent staining the bathtub or sink. In addition, the addition of dyes to formulations reduces the viscosity of the formulation, so the amount of surfactants added tends to increase to adjust the viscosity. Shampoos, in particular, contain a large amount of surfactants to maintain their cleansing power. In this case, if a large amount of surfactant is contained, there is a problem that the dyeing of the dye is inhibited to that extent.

[0009] The present invention has been made in view of the problems inherent in the prior art. Specifically, the objective of the present invention is to provide a hair dye composition that significantly suppresses staining on the skin, bathtub, and washbasin by combining and blending a hydrophobic modified polyether urethane with a dye, and furthermore, that can stabilize dyeability even for different hair types due to the thickening effect of the hydrophobic modified polyether urethane. Another object of the present invention is to provide a hair dye composition that can significantly reduce skin stains and colored stains on bathtubs and the like by enveloping the dye in hydrophobically modified polyether urethane to reduce direct contact of the dye. [Means for solving the problem]

[0010] The hair dye composition according to the first aspect of the present invention contains one or more dyes selected from the group consisting of HC dyes, basic dyes, direct dyes, and acid dyes, and also contains a hydrophobically modified polyether urethane.

[0011] Preferably, the polyglycerol fatty acid ester is contained in an amount of 0.01 to 10% by mass.

[0012] Preferably, the composition contains a cationic polymer and / or a water-soluble polymer having gelling properties.

[0013] <More suitable range> More preferably, the amount of the dye when used is 1.0% by mass or less.

[0014] More preferably, the content of the hydrophobically modified polyether urethane is 0.01 to 20% by mass relative to the total amount of the cosmetic composition.

[0015] More preferably, the polyglycerol fatty acid ester is 10% by mass or less.

[0016] More preferably, the water-soluble polymer contains a natural polymer or a derivative thereof, a cellulose derivative, or a synthetic polymer as an auxiliary agent for adjusting viscosity, although there is no problem with using hydrophobically modified polyether urethane alone.

[0017] More preferably, citric acid, ammonium bicarbonate, and arginine may be contained as an agent for improving dyeing power and stabilizing pH.

[0018] More preferably, the formulation and storage container are not limited as long as the hair dye cosmetic contains the dye and hydrophobic modified polyether urethane. [Effects of the Invention]

[0019] According to the hair dye composition of the present invention, by combining a hydrophobically modified polyether urethane with a dye and blending the hydrophobically modified polyether urethane as a stain-preventing component and viscosity adjuster, it is possible to obtain a hair dye cosmetic that prevents staining of the skin, bathtub, and washbasin more effectively than conventional hair colors. Because it can be used as a viscosity adjuster, the amount of surfactant blended can also be reduced.

[0020] Furthermore, the hair dye composition of the present invention has a film-forming effect of the hydrophobically modified polyether urethane, which reduces staining of the skin, bathtub, and washbasin compared to conventional color shampoos and color treatments containing direct dyes such as acid dyes, basic dyes, HC dyes, and nitro dyes, and furthermore exhibits stable dyeability that is not affected by hair type.

[0021] Furthermore, the hair dye composition of the present invention is used as a viscosity adjuster to prevent dripping, allowing even dyeing to be easily achieved by one person.

[0022] Furthermore, the dye is trapped in the hydrophobic associations of the hydrophobic modified polyether urethane and adsorbed to the hair, which is thought to prevent the color from transferring to towels and clothing. [Brief explanation of the drawings]

[0023] [Figure 1] Table 1 shows the components of the specimens used in the examples of the present invention and the evaluation results. [Figure 2] Table 2 shows the components of the comparative specimens of the present invention and the evaluation results. [Figure 3] Table 3 shows the components of the comparative specimens of the present invention and the evaluation results. [Figure 4] Table 4 shows the components of the comparative specimens of the present invention and the evaluation results.

[0024] In general shampoos, viscosity is controlled using polyquaternium-10, an anionic surfactant, an amphoteric surfactant, and an alkylolamide-type nonionic surfactant. However, when an alkylolamide-type nonionic surfactant is used, viscosity is affected by the properties of the anionic surfactant and amphoteric surfactant, so a certain amount of surfactant must be blended.

[0025] Furthermore, there are concerns about the thermal stability of Polyquaternium-10 alone, so the design inevitably requires an increased amount of surfactant.

[0026] However, according to the hair dye composition of the present invention, by using a hydrophobically modified polyether urethane, the viscosity is stabilized, and the dye is incorporated into the hydrophobically modified polyether urethane, thereby stabilizing the dyeability, which is dependent on the hair type. In addition, by incorporating hydrophobic modified polyether urethane, the agent does not stick to the sink or bathtub and is not fixed to the surface, which helps to prevent staining and dirt buildup.

[0027] <Explanation 1 of the components of the hair dye composition of the present invention> The cosmetic composition of the present invention may contain other ingredients, such as cationic surfactants, chelating agents, low-molecular-weight polyols, oily components, zinc compounds, thickeners other than hydrophobically modified polyether urethanes, powders, antibacterial preservatives, moisturizing agents, antioxidants, ultraviolet absorbers, sequestering agents, monosaccharides, oligosaccharides, polysaccharides, amino acids and derivatives thereof, organic amines, vitamins, cosmetic ingredients, fragrances, pH adjusters, and other optional ingredients, as appropriate, in order to improve or modify various properties (solubility, dispersibility, stability, usability, spreadability, penetration, moisturizing properties, safety, design properties, optical properties, fragrance, whitening properties, etc.) during storage, during use, and after use depending on the intended use, within a range that does not impair the object of the present invention.

[0028] <Explanation 2 of the components of the hair dye composition of the present invention> As the thickener other than the hydrophobically modified polyether urethane, any known thickener generally used in cosmetics other than the hydrophobically modified polyether urethane can be used. For example, quaternary ammonium salt polymers such as polydimethylmethylenepiperidinium chloride, quaternized polyvinylpyrrolidone derivatives such as vinylpyrrolidone·N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, cationic polymers such as polyquaternium-6, 7, 10, cationic starch, polyglycol polyamine condensates, adipic acid·dimethylaminohydroxypropylethylenetriamine copolymers, quaternary nitrogen-containing cellulose ether derivatives such as O-[2-hydroxy-3-(trimethylammonio)propyl] hydroxyethyl cellulose chloride, and quaternary ammonium salts such as guar hydroxypropyltrimonium chloride. Examples of suitable cellulose gums include nitrogen-containing guar gum derivatives, cationized dextran, cellulose or derivatives thereof, keratin and collagen or derivatives thereof, calcium alginate, pullulan, agar, gelatin, tamarind seed polysaccharides, xanthan gum, carrageenan, high methoxyl pectin, low methoxyl pectin, guar gum, gum arabic, crystalline cellulose, arabinogalactan, karaya gum, tragacanth gum, alginic acid, albumin, casein, curdlan, β-glucan, gellan gum, dextran, acrylate crosspolymer, and hydrophobically modified alkyl cellulose. One or more of these can be used. When the cosmetic composition of the present invention contains a thickener other than the hydrophobically modified polyether urethane, the content of the thickener other than the hydrophobically modified polyether urethane is not particularly limited and can be adjusted according to the purpose.

[0029] <Explanation 3 of the components of the hair dye composition of the present invention> The polyglycerol fatty acid ester of component (a) is a polyglycerol fatty acid ester in which fatty acids are ester-bonded at 50 to 200% of the average degree of polymerization (n) of polyglycerol. More preferably, it is a polyglycerol fatty acid ester in which 100 to 200% of the fatty acid (n) is ester-bonded to the average degree of polymerization (n) of polyglycerol. For example, in the case of polyglyceryl-2 tetraisostearate, the average degree of polymerization (n) of polyglycerol is 2 and the amount of ester-bonded fatty acid is 4, so the ratio of fatty acid to the average degree of polymerization (n) of polyglycerol is calculated as 4 / 2 = 200%. Furthermore, the fatty acid of the polyglycerol fatty acid ester is isostearic acid or oleic acid.

[0030] <Explanation 4 of the components of the hair dye composition of the present invention> The hydrophobically modified polyether urethane (A) used in the present invention is a thickener such as a urethane copolymer having a hydrophilic backbone and a hydrophobic end portion. It is believed that such hydrophobically modified polyether urethane exhibits a thickening effect in aqueous media by the hydrophobic portions of the copolymer associating with each other and the hydrophilic portions forming loop-like or bridge-like structures. The hydrophobically modified polyether urethane that can be used in the present invention is not limited as long as it is a known hydrophobically modified polyether urethane, but for example, a hydrophobically modified polyether urethane obtained by reacting a polyoxyalkylene having 2 to 4 carbon atoms with a polyisocyanate having two or more isocyanate groups in the molecule, and, if necessary, a polyoxyalkylene alkyl ether, an alkyl glyceryl ether, or the like, can be used. In the present invention, commercially available hydrophobically modified polyether urethanes can be used, such as ADEKA NOL GT-700 and ADEKA NOL GT-930 (both manufactured by ADEKA Corporation).

[0031] Further Description of Hair Dye Composition Examples The hair dye composition according to the present invention will be described below. The hair dye composition according to the present invention contains one or more dyes selected from the group consisting of HC dyes, basic dyes, nitro dyes (direct dyes), and acid dyes. However, the amount of the dye (when the hair dye composition is used) is greater than 0.0% by mass (0.0% by mass means that even trace amounts other than unavoidable impurities are present, e.g., 0.0001% by mass or more, which is the detection limit by a conventional method; the same applies hereinafter) and not greater than 1.0% by mass, more preferably 0.01% by mass to 0.8% by mass (because if the amount exceeds 1.0% by mass, the dye may precipitate).

[0032] When designing the above-mentioned color shampoo, the sample may contain at least one of cationic surfactants, anionic surfactants, amphoteric surfactants, and nonionic surfactants.

[0033] The hair dye composition of the present invention preferably has a pH of 4.00 to 7.00, but when one or more of HC Blue 16, Basic Yellow 87, Basic Orange 31, and Basic Red 51 are blended to prepare the hair dye composition, a pH of 7.00 or higher is acceptable.

[0034] Furthermore, by adding a penetration enhancer and a hair protecting agent to the hair dye composition of the present invention, a more preferable effect of the addition tends to be exhibited, namely, the effect of being able to dye the hair while caring for the hair.

[0035] Examples of penetration enhancers include 1,3-butylene glycol, sodium dilauroyl glutamate lysine, bisethoxydiglycol cyclohexane-1,4-dicarboxylate, and urea. These may be used alone or in combination of two or more types as needed. However, other penetration enhancers may also be used.

[0036] Examples of hair protectants include keratin, such as N-[2-hydroxy-3-(trimethylammonio)propyl]chloride hydrolyzed keratin solution and N-[2-hydroxy-3-(lauryldimethylammonio)propyl]chloride hydrolyzed keratin solution, etc. However, other hair protectants may also be used.

[0037] Furthermore, the hair dye composition of the present invention may contain, as needed, one or more pH adjusters selected from ammonium bicarbonate, aqueous ammonia, and citric acid, in order to improve dyeing ability and pH stability.

[0038] The hair dye composition of the present invention preferably contains acid dyes, basic dyes, HC dyes, direct dyes, etc. as pigments or dyes, which may be used alone or in combination of two or more as needed. By incorporating these pigments or dyes, it is possible to dye hair in a variety of colors.

[0039] Acid dyes include those designated by the Ministry of Health and Welfare Ordinance No. 30, "Ministerial Ordinance Specifying Tar Dyes That Can Be Used in Pharmaceuticals, etc.", promulgated on August 31, 1966. There are no particular limitations on the acid dyes as long as they are acid dyes that can be commonly used in hair dyes, and examples thereof include 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. 220, Red No. 230, Red No. 231, Red No. 232, Orange No. 205, Orange No. 207, and Yellow No. 202. , Yellow 203, Green 201, Green 204, Green 206, Blue 202, Blue 203, Blue 205, Red 401, Red 502, Red 503, Red 504, Red 506, Orange 402, Yellow 402, Yellow 403, Yellow 406, Yellow 407, Brown 201, Green 401, Green 402, Purple 401, and Black 401.

[0040] The basic dye is not particularly limited as long as it is a basic dye that can be commonly used in hair dyes, and examples thereof include Basic Blue 124, Basic Blue 75, Basic Blue 99, Basic Brown 16, Basic Brown 17, Basic Yellow 57, Basic Orange 31, Basic Red 51, Basic YELLOW 87, and Basic VIOLET 2.

[0041] The HC dye is not particularly limited as long as it is an HC dye that can be commonly used in hair dyes, and examples include HC Blue No. 2, HC Blue No. 5, HC Blue No. 6, HC Blue No. 9, HC Blue No. 10, HC Blue No. 11, HC Blue No. 12, HC Blue No. 16, HC Orange No. 1, HC Orange No. 2, HC Orange No. 31, HC Red No. 1, HC Red No. 3, HC Red No. 7, HC Red No. 10, HC Red No. 11, HC Red No. 13, HC Red No. 14, HC Violet No. 1, HC Violet No. 2, HC Yellow No. 2, HC Yellow No. 4, HC Yellow No. 6, HC Yellow No. 9, HC Yellow No. 10, and HC Yellow No. 11.

[0042] Examples of direct dyes include nitro dyes such as 2-amino-6-chloro-4-nitrophenol, 2-amino-3-nitrophenol, 4-amino-3-nitrophenol, hydroxyanthraquinone aminopropylmethylmorphonium methosulfate, 3-methylamino-4-nitrophenoxyethanol, 2-nitro-5-glycerylmethylaniline, and N,N-Bis(2-hydroxyethyl)-2-nitro-p-phenylenediamine.

[0043] The content of the above pigments and dyes is preferably 2% by weight or less, and more preferably 0.01 to 1% by weight. If it exceeds 2% by weight, the effect on viscosity tends to become significant.

[0044] Furthermore, the hair dye contained in the hair dye composition of the present invention may contain various ingredients that are commonly used in cosmetics and hair dyes, as long as the effects of the present invention are not impaired.

[0045] For example, surfactants include: stearyltrimethylammonium chloride, Tri(polyoxyethylene)stearylammonium chloride (5E.O.), cationic surfactants such as cetyltrimethylammonium chloride; Sodium tetradecene sulfonate solution, Sodium lauroylmethyl-β-alanine solution, anionic surfactants such as sodium polyoxyethylene alkyl (12,13) ​​ether sulfate (3E.O.); alkyl polyglucosides, Polyoxyethylene castor oil, nonionic surfactants such as polyoxyethylene hydrogenated castor oil, 2-Alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, Coconut oil fatty acid amidopropyl betaine solution, Examples of the surfactant include amphoteric surfactants such as lauric acid amidopropyl betaine solution.

[0046] Other ingredients include: Moisturizing agents such as 1,3-BG, PG, DPG, glycerin, and PPG-9 diglyceryl; chelating agents such as EDTA, EDTA-2Na, EDTA-4Na, and hydroxyethanediphosphonic acid; preservatives such as parabens and methylisothiazolinone; solvents such as ethanol and isopropyl alcohol, fragrances, etc. is possible. If necessary, one or more of these may be appropriately combined (for example, as in the examples).

[0047] Needless to say, the hair dye composition according to the present invention is not particularly limited in the form of a storage container.

[0048] <Specific Examples (Modifications and Comparative Examples)> The hair dye composition according to the present invention will be specifically described below with reference to examples and comparative examples. The values ​​in the tables indicate % by mass. Furthermore, the mass % in each example is merely a representative value. The inventors have empirically confirmed through past experiments that at least the same properties will be exhibited if the range is between 20% and 200% of each of the stated numerical values ​​(% by mass). If you want to keep the margins small, The inventors are empirically convinced through past experiments that if the range is between 50% and 150% of each of the stated numerical values ​​(in terms of mass), then substantially the same properties will be exhibited. Furthermore, the inventors have empirically confirmed through past experiments that within the range of 80% to 120% of each of the stated numerical values ​​(in terms of mass), the materials exhibit the same properties to the extent that they are indistinguishable.

[0049] Comparative Example 1 shown in Table 1 is a hair color treatment prepared with an HC dye and a basic dye, and Comparative Example 2 is an aqueous solution of Comparative Example 1. Example 1 is an example study in which hydrophobically modified polyether urethane is blended with Comparative Example 2.

[0050] Furthermore, Comparative Example 3 shown in Table 2 is a comparative example specimen with low viscosity adjusted with HC dye and basic dye. Example 2 is an example specimen in which hydrophobically modified polyether urethane is blended with Comparative Example 3. Example 3 is an example specimen in which polyglycerin fatty acid ester is blended with Example 2.

[0051] Furthermore, Comparative Example 4 shown in Table 3 is Example Samples 4 and 5, which are a variation of the dye combination from Comparative Example 1, and which contain a hydrophobic modified polyether urethane and a polyglycol fatty acid ester, as in Table 2. Here, Comparative Example 5 is an aqueous solution containing an acid dye, and Example 7 is an example specimen in which Comparative Example 5 is compounded with hydrophobically modified polyether urethane.

[0052] Comparative Example 6 shown in Table 4 is a hair color shampoo prepared with a basic dye, and Examples 8 and 9 are example samples containing a hydrophobic modified polyether urethane and a polyglycol fatty acid ester, as in Table 2.

[0053] The blending amount of dyes (HC dyes, basic dyes, direct dyes, acid dyes) in each example sample was more than 0.0 mass % and 1.0 mass % or less.

[0054] Here, Example Samples 1 to 9 and Comparative Example Samples 1 to 6 are compared according to the table. [Hair dye stability test method] Approximately 2g of each sample was applied to 1g of goat or yak hair (Beaulux) bundles approximately 10cm long. After leaving it for 10 minutes, it was washed with running water at approximately 40°C for 30 seconds and air-dried. [Skin staining test method] The comparative sample and the example sample were applied to the skin, left for 3 minutes, and then washed off with running water at about 40°C. [Soil test method] To test for staining on a bathtub and a washstand, the comparative sample and the example sample were applied, left for 10 minutes, and then rinsed off with running water at about 40°C.

[0055] [Evaluation method] <Stability> Dyed goat and yak hair bundles were visually inspected to compare dyeability and uneven color due to hair quality, and the stability of dyeing due to hair quality was compared. Both strands of hair were dyed evenly and consistently. Dyed ○, I feel uneven color due to hair quality × It was evaluated by. <Skin stains> In the skin staining test, the sample is applied to the skin and the staining (staining) after washing is compared. The dirt came off ◎, The dirt was removed to the extent that it was not noticeable. Dirt remains × The judgment was made based on the following. <Stain> In the stain test, the degree of staining (staining) after washing off the sample attached to the object is compared. The dirt came off ◎, The dirt was removed to the extent that it was not noticeable. Dirt remains × The judgment was made based on the following.

[0056] <Evaluation results> As shown in the results in the table, the examples that combined hydrophobically modified polyether urethane and dye showed stable dyeing properties regardless of the type of hair bundle, and it was found that the degree of dyeing and staining on the skin and the degree of staining of samples attached to objects were significantly reduced compared to the comparative examples. When compared with color treatment and color shampoo, it was found that it significantly suppressed staining on the skin and stains from specimens adhering to objects. It was found that, regardless of the formulation, if it is designed with a combination of hydrophobic modified polyether urethane and dye, it can be effective in suppressing stains on both the skin and materials. Therefore, as a hair dye composition, the present invention has a stain-inhibiting effect greater than conventional color treatments and color shampoos, and is able to inhibit stains on the skin and on bathtubs and sinks, which could not be resolved with conventional products. [Industrial Applicability]

[0057] The present invention is suitable as a hair dye composition.

Claims

1. The dye contains one or more dyes selected from HC dyes, basic dyes, direct dyes, and acid dyes, Contains hydrophobically modified polyether urethane Hair dye composition.

2. Contains 0.01 to 10% by mass of polyglycerol fatty acid ester, The hair dye composition of claim 1.

3. Contains a cationic polymer and / or a water-soluble polymer having gelling properties The hair dye composition according to claim 1 or 2.

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