Acidic hair dye

Abstract

To provide an acidic hair dye that excels in ease of application, smoothness in running fingers through hair during rinsing and also after towel drying.SOLUTION: An acidic hair dye contains: (A) at least one selected from (ammonium acryloyldimethyltaurate / vinyl pyrrolidone) copolymer, (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer, sodium polyacryloyldimethyl taurate and polyacrylate crosspolymer-11; and (B) xanthan gum. A content of the component (A) is 0.3-5.6 mass%, a content of the component (B) is 0.15-1.5 mass%, and a mass ratio (A) / (B) of component (A) to component (B) is 0.75-14.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to an acidic hair dyeing material having good application properties, smoothness of hair when rinsed, and smoothness of hair after towel drying.

Background Art

[0002] An acidic hair dyeing material (so-called hair manicure), which is a kind of cosmetic for dyeing hair, contains a negatively charged acidic dye and dyes hair by forming an ionic bond with positively charged hair. Acidic hair dyeing materials are widely used as white hair dyes and fashion colors because they have advantages such as excellent hair coloring power and little damage to hair. Since acidic hair dyeing materials are often applied to hair such as white hair and bleached hair damaged, they are difficult to apply to hair, and the hair may squeak during rinsing and the smoothness may deteriorate.

[0003] As an acidic hair dyeing material having good application properties, an acidic hair dyeing material containing an acrylic acid-based polymer and xanthan gum has been disclosed (Patent Document 1). Further, as an acidic hair dyeing material for reducing the squeaking feeling during hair washing, an acidic hair dyeing material containing an anionic polymer and an amidoamine compound has been disclosed (Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, while Patent Documents 1 and 2 have investigated the application properties and ease of handling of hair during rinsing by incorporating specific polymers or macromolecules into acidic hair dyes, they were not entirely satisfactory in terms of ease of handling of hair after towel drying, and there was room for further investigation.

[0006] Therefore, the object of the present invention is to provide an acidic hair dye that has good application properties, smooth hair texture during rinsing, and smooth hair texture after towel drying. [Means for solving the problem]

[0007] As a result of diligent research to solve the above problems, the present inventors have arrived at the present invention by providing an acidic hair dye containing (A) one or more selected from (Acryldimethyltaurate ammonium / vinylpyrrolidone) copolymer, (Acryldimethyltaurate ammonium / beheneth-25 methacrylate) crosspolymer, sodium polyacryloyldimethyltaurate, or polyacrylate crosspolymer-11, and (B) xanthan gum, wherein the content of component (A) is 0.3 to 5.6% by mass, the content of component (B) is 0.15 to 1.5% by mass, and the mass ratio (A) / (B) of component (A) to component (B) is 0.75 to 14. [Effects of the Invention]

[0008] The present invention provides an acidic hair dye that offers good application, smooth hair texture during rinsing, and smooth hair texture after towel drying. [Modes for carrying out the invention]

[0009] The present invention will be described in detail below. Unless otherwise specified, all units indicating content are in mass percent.

[0010] The present invention relates to an acidic hair dye comprising (A) one or more selected from (Acryldimethyltaurate ammonium / vinylpyrrolidone) copolymer, (Acryldimethyltaurate ammonium / beheneth-25 methacrylate) crosspolymer, sodium polyacryloyldimethyltaurate, or polyacrylate crosspolymer-11, and (B) xanthan gum, wherein the content of component (A) is 0.3 to 5.6% by mass, the content of component (B) is 0.15 to 1.5% by mass, and the mass ratio (A) / (B) of component (A) to component (B) is 0.75 to 14.

[0011] The acidic hair dye in the present invention contains one or more selected from (A)(acryloyldimethyltaurate ammonium / vinylpyrrolidone) copolymer, (acryloyldimethyltaurate ammonium / beheneth-25 methacrylate) crosspolymer, sodium polyacryloyldimethyltaurate, or polyacrylate crosspolymer-11, from the viewpoint of improving the manageability of the hair during rinsing and after towel drying. In particular, from the viewpoint of improving the manageability of the hair during rinsing and after towel drying, one or more selected from (acryloyldimethyltaurate ammonium / vinylpyrrolidone) copolymer or (acryloyldimethyltaurate ammonium / beheneth-25 methacrylate) crosspolymer is preferred, and (acryloyldimethyltaurate ammonium / vinylpyrrolidone) copolymer is more preferred.

[0012] Among the components (A) used in the present invention, commercially available products of (ammonium acryloyldimethyltaurate / vinylpyrrolidone) copolymer include, for example, ARISTOFLEX AVC (manufactured by Clariant), commercially available products of (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer include, for example, ARISTOFLEX HMB (manufactured by Clariant), commercially available products of sodium polyacryloyldimethyltaurate include, for example, ARISTOFLEX SILK (manufactured by Clariant), and commercially available products of polyacrylate crosspolymer-11 include, for example, ARISTOFLEX VELVET (manufactured by Clariant).

[0013] The content of component (A) used in the present invention is preferably 0.3 to 5.6%, more preferably 0.6 to 4.4%, and more preferably 1 to 3.4%. If the content of component (A) is less than 0.3% or more than 5.6%, the hair becomes less manageable when rinsing and after towel drying.

[0014] The acidic hair dye in this invention contains component (B) xanthan gum from the viewpoint of ease of application and smoothness of hair after towel drying.

[0015] The content of component (B) used in the present invention is preferably 0.15 to 1.5%, more preferably 0.19 to 1%, and more preferably 0.25 to 0.8%. If the content of component (B) is less than 0.15% or more than 1.5%, the application properties and the manageability of the hair after towel drying will be poor.

[0016] In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is preferably 0.75 to 14, more preferably 1.5 to 11, and more preferably 2.5 to 8.5, from the viewpoint of ease of application, ease of combing through hair during rinsing, and ease of combing through hair after towel drying. If (A) / (B) is less than 0.75 or greater than 14, ease of application, ease of combing through hair during rinsing, and ease of combing through hair after towel drying will be poor.

[0017] The dosage form of the acid hair dye material in the present invention is not particularly limited, but from the viewpoint of ease of application to hair, gels, creams, emulsions, liquids, etc. are preferred. Among them, from the viewpoint of dripping during application, gels or creams are more preferred, and gels are even more preferred.

[0018] The viscosity of the acid hair dye material in the present invention under the condition of 20 °C is not particularly limited, but from the viewpoint of stability over time, it is preferably 20,000 mPa·s or more.

[0019] The viscosity under the condition of 20 °C in the present invention was measured by filling 120 g of the acid hair dye material prepared by a conventional method into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), allowing it to stand at 20 °C for 24 hours, and then rotating it at 6 rpm for 1 minute using a B-type viscometer (model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with an M4 rotor.

[0020] The pH of the acid hair dye material in the present invention under the condition of 20 °C is not particularly limited, but from the viewpoint of hair dyeing properties, it is preferably 2 to 5.

[0021] The pH under the condition of 20 °C in the present invention was measured by filling 120 g of the acid hair dye material prepared by a conventional method into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), allowing it to stand at 20 °C for 24 hours, and then measuring the pH of the stock solution using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

[0022] The container for filling the acid hair dye material in the present invention is not particularly limited, but since the acid hair dye material is preferably a gel, cream, emulsion or liquid, a tube container, a jar container, a pump container, a pouch film container or an aerosol container, etc. are preferred.

[0023] In addition to the essential components (A) and (B), the acid hair dye material in the present invention may contain, within a range not impairing the effects of the present invention, an oil agent, a higher alcohol, a fatty acid, a surfactant, a pH adjuster, a thickener, a solvent, a humectant, vitamins, a preservative, an anti-inflammatory agent, an antibacterial agent, an antioxidant, an ultraviolet absorber, an ultraviolet scattering agent, a pigment, a chelating agent, an extract, an essential oil, a fermentation broth, a wetting agent, a spraying agent, a foaming agent, a coloring agent, a fragrance, etc. These may be selected and contained in one or more kinds.

[0024] The acid hair dye material in the present invention may be prepared without blending an acid dye and used as a rinse-off treatment. Also, for the purpose of adjusting the hair dyeing power, the acid hair dye material in the present invention and an acid hair dye material prepared without blending an acid dye may be mixed at an arbitrary ratio and used.

[0025] The method of using the acid hair dye material in the present invention is not particularly limited, but it is applied to dry or wet hair with a hand wearing a comb or gloves, left for a certain period of time, and then rinsed with running water to finish. When rinsing, it may be washed with shampoo or the like as necessary. Since the skin may be dyed and difficult to fade when the acid hair dye material adheres to the skin, it is preferable to use a comb or gloves. Also, the hair to which the acid hair dye material in the present invention is applied is not particularly limited, but virgin hair (hair that has not been treated with agents such as bleach, hair color, perm, etc.), white hair, bleached hair, colored hair (hair dyed with hair color, hair manicure, color treatment, etc.), perm-treated hair, etc. may be mentioned, and hair in a plurality of states mixed may also be used.

Examples

[0026] The present invention will be described in more detail with reference to the following examples, but these do not limit the present invention in any way. In the evaluation tests shown in this specification, the components contained in the acid hair dye material and their contents were changed variously. The units indicating the contents of each component are all mass%, and these were prepared by conventional methods.

[0027] (Evaluation method) Ten panelists applied 100g of each acidic hair dye obtained in the examples and comparative examples to evaluation wigs (50% mixed human gray hair, Queen Cut No. 775SW, manufactured by Beaulux Co., Ltd.) using gloved hands, and evaluated the ease of application. After leaving the wigs for 15 minutes, they rinsed them thoroughly with 40°C running water until there was no feeling of residue remaining, and evaluated the ease of combing the hair during rinsing. Furthermore, after towel-drying, they evaluated the ease of combing the hair again.

[0028] Each panelist evaluated each item on a five-point scale: 5 points (very good), 4 points (good), 3 points (good), 2 points (poor), and 1 point (very poor). After calculating the average score from all participants, the panelists made their judgments according to the following criteria.

[0029] (Criteria for determining average score) 4.0 points or higher: 5 3.5 points or higher but less than 4.0 points: 4 3.0 or higher but less than 3.5: 3 2.0 points or higher but less than 3.0 points: 2 Less than 2.0 points: 1

[0030] (First evaluation test) In the first evaluation test, acidic hair dyes prepared by conventional methods were evaluated in terms of the content, type, and (A) / (B) ratio of component (A). Tables 1 and 2 show the components of the acidic hair dyes, their content, and the evaluation results.

[0031] [Table 1]

[0032] [Table 2]

[0033] Examples 1 to 10 shown in Table 1 yielded good results regarding application, hair manageability during rinsing, and hair manageability after towel drying.

[0034] (Second evaluation test) In the second evaluation test, acidic hair dyes prepared by conventional methods were evaluated in terms of the content of component (B) and the ratio of (A) / (B). Tables 3 and 4 show the components of the acidic hair dyes, their content, and the evaluation results.

[0035] [Table 3]

[0036] [Table 4]

[0037] Examples 11-17 shown in Table 3 yielded favorable results regarding application, hair manageability during rinsing, and hair manageability after towel drying.

[0038] The following describes 18 examples of acidic hair dyes prepared by conventional methods.

[0039] The acidic hair dye obtained in Example 18 yielded good results in terms of ease of application, manageability of hair during rinsing, and manageability of hair after towel drying.

[0040] <Example 18> Element Content (%) (A)(Ammonium acryloyldimethyltaurate / Vinylpyrrolidone copolymer *1 2.10 (B) Xanthan gum 0.40 Ethanol 22.00 t-butanol 0.05 Benzyl alcohol 8.00 Glycolic acid 3.00 Yellow 4 0.10 Red 106 0.10 blue 1 0.10 Yellow 5 0.10 Red 227 0.10 Yellow 403(1) 0.10 Purple 401 0.10 Black 401 0.10 Orange 205 0.10 Red 504 0.10 Fragrance 0.10 1,3-Butylene glycol 1.00 Citric acid 0.01 Sodium citrate 0.01 Argania spinosa kernel oil 0.01 Hydrolyzed soy protein 0.01 Sage leaf extract 0.01 Water-soluble collagen 0.01 Camellia seed oil 0.01 Royal jelly extract 0.01 Hydrolyzed silk 0.01 Hydrolyzed conchiolin 0.01 Jojoba seed oil 0.01 Isostearoyl hydrolyzed collagen aminomethylpropanediol salt 0.01 Rhodochrosite extract 0.01 Phenoxyethanol 0.01 Sorbic acid 0.01 Adjust potassium hydroxide to pH 3.0 Purified water remainder Total 100.0 Viscosity (20℃) 35,000mPa·s pH (20℃) 3.0 *1 ARISTOFLEX AVC (manufactured by Clariant) [Industrial applicability]

[0041] The present invention provides an acidic hair dye that offers good application, smooth hair texture during rinsing, and smooth hair texture after towel drying.

Claims

[Claim 1] An acidic hair dye comprising (A) (ammonium acryloyldimethyltaurate / vinylpyrrolidone) copolymer and (B) xanthan gum, wherein the content of component (A) is 1 to 3.4% by mass, the content of component (B) is 0.25 to 0.8% by mass, and the mass ratio of component (A) to component (B), (A) / (B), is 2.5 to 8.5.

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