JP6944193B2 - Oxidative hair dye composition, oxidative hair dye kit and oxidative hair dye method - Google Patents

Description

The present invention relates to an oxidative hair dye composition that improves the mixability while imparting a desired viscosity, an oxidative hair dye kit using the oxidative hair dye composition, and an oxidative hair dyeing method.

Currently, hair coloring is widely used, and hair coloring agents based on various principles according to the purpose and the like are commercially available. Among them, the oxidative hair dye is widely used because of its good dyeability and high durability.

The oxidative hair dye is composed of a first agent containing an oxidative dye and an alkaline agent and a second agent containing an oxidant, and is used by mixing these at the time of use. When this is applied to the hair, the alkaline agent swells the hair to increase the permeability of the oxidative dye, and reacts with the oxidant (usually hydrogen peroxide) to develop the color of the oxidative dye and decompose melanin in the hair. Causes the hair to be dyed.

However, hair dyeing with an oxidative hair dye generally causes roughening of the cuticle of the hair, which causes deterioration of the feel (comb passage) of the hair. In particular, when the hair dyeing target includes white hair, the difference between the newly growing white part and the dyed black part is conspicuous, and it is necessary to dye the hair frequently, so this problem is even more remarkable. Become. Further, in the oxidative hair dye, a first agent containing an oxidative dye and an alkaline agent and a second agent containing an oxidant are mixed at the time of use. However, no useful solution has yet been found.

Specifically, it is required to provide an oxidative hair dye that improves the mixability while imparting a desired viscosity. None of the existing techniques offer all of the advantages and benefits of the present invention.

Cellulose derivatives are applied to various fields of viscosity adjustment, thickening, gelation, dispersion stabilization, water retention, emulsion stabilization, adhesion, film formation and cosmetics, depending on their properties. especially,
In the fields of viscosity adjustment, thickening, and gelation, hydroxypropyl cellulose (HPC) and hydroxyethyl cellulose (HEC) have been preferably used in systems in which carbomer, which is a typical thickener, cannot be used (Patent Documents). 1). However, these cellulose derivatives have a limitation in the thickening effect due to the molecular weight, and it is necessary to add a considerable amount in order to obtain the desired viscosity. In addition, the thixotropic property of the prepared solution was inferior to that of carbomer, and the feeling of use of cosmetics was not satisfactory. On the other hand, in the existing cellulose derivatives, attempts have been made to introduce hydrophobic groups such as C12 to C18 to increase the viscosity and complete the feeling of use. For example, a hydrophobic group from C12 to C16 was introduced into HEC (hereinafter referred to as HM-HEC), and it is used in shampoo (Non-Patent Document 1: Izumi Saito, Pharmaceutics, 52 (4), 272. -279, 1992). This HM-HEC is evaluated as a surfactant rather than a thickener because it uses low molecular weight HEC as a raw material before denaturation and is designed with a relatively high degree of substitution of hydrophobic groups. ing. In addition, research on introducing a hydrophobic group into a high molecular weight cellulose derivative and utilizing it as a pharmaceutical gelling agent has also been reported (Non-Patent Document 2: Fragrance Journal No.323, Vol.35 No.7, 72-78, 2007). ).

It has been reported that a hydrophobic cellulose derivative (hereinafter referred to as HM-HPMC) is synthesized by introducing a hydrophobic group of C18 into a polymer HPMC as a cellulose derivative, and exhibits a thixotropic fluidity similar to that of carbomer. (Non-Patent Document 2). Specifically, it is necessary to provide an oxidative hair dye composition that improves the mixability while imparting a desired viscosity by combining a hydrophobically modified alkyl cellulose that is a cellulose derivative, an oil and fat agent, and a surfactant. Has been done. None of the existing techniques offer all of the advantages and benefits of the present invention. There was no attempt to utilize this hydrophobized cellulose derivative as an acidic hair dye.

Most of the polymer thickeners contained in oxidative hair dyes, when excessively adsorbed on the hair during hair dyeing, cause squeaks and poor finger passage due to entanglement and bunch of hair, and when drying after hair dyeing. With a negative feel such as ruggedness and roughness.

Specifically, an oxidative hair dye composition that is excellent in mixing while imparting a desired viscosity at the time of hair dyeing while further reducing the adverse effect on the feel of the finished hair (for example, roughening of the cuticle). Is required to provide. None of the existing techniques offer all of the advantages and benefits of the present invention.

Hair damage is caused by the cuticle on the surface peeling off and the moisture inside flowing out. Especially during hair washing, the cuticle is easily affected by friction, which is a major factor in damaging the hair. Therefore, shampoos for damaged hair are required to have a function of protecting the cuticle and reducing friction. Silicone, a synthetic raw material commonly used in shampoos for damaged hair, coats the surface of the hair and plays a role in reducing the friction of the cuticle. It is said to be a raw material that realizes smooth finger passage and is highly effective in preventing hair damage. However, highly polymerized silicones and modified silicones used in hair care products block the pores of the scalp after long-term use due to their high adhesion to the hair, and are called "build-ups" that accumulate excessively on the hair surface. Cause a phenomenon. As a result, the scalp environment may be deteriorated, and the cuticle may be peeled off, which may adversely affect the scalp and hair. In addition, it may interfere with hair color dyeing and perming. Against this background, the need for non-silicone is increasing in the development of oxidative hair dyes. The highly polymerized silicone imparts water resistance, moisturizing property, and sebum resistance to the hair as a protective film silicone. The modified silicone has improved adsorptivity as compared with the highly polymerized silicone, and the sustainability of the conditioning effect is improved.

In recent years, the scale of the non-silicone shampoo market has expanded due to the growing natural needs of the cosmetics market as a whole and the needs of consumers who avoid silicones. Since non-silicone shampoo literally does not use silicone, there is no adverse effect on the hair surface or scalp due to build-up. However, since there is no raw material that can replace silicone (persistent adhesion, imparting smoothness to hair), non-silicone shampoo has a weak function of suppressing hair friction during hair washing, and is suitable for damage care. Is unsuitable. In this way, in the development of shampoo for damaged hair, it is difficult to achieve both damage care due to the friction reduction effect during hair washing and scalp care that prevents build-up and keeps the scalp and hair normal, which is a technical trade-off. It can be said that there is a relationship. Against this background, the need for non-silicone is increasing in the development of oxidative hair dyes.

Therefore, recently, "ammonia-free", which does not use ammonia at all, has been strongly desired as an oxidative hair dye that has less irritating odor, less irritation to the scalp, and less burden on the hair. There is. Furthermore, for gray hair dyeing, a synthetic chemical dye called PPD (para-phenylenediamine) is used in many commercially available gray hair dyes and hair coloring agents. PPD is an indispensable ingredient for gray hair dyeing and hair coloring agents because it can easily produce various colors and can be dyed in dark colors, but it is known to cause allergic symptoms. There is. For this reason, "PPD-free" has recently become strongly desired. Furthermore, there is a demand for safer and more secure products, and not only "silicon-free", "ammonia-free" and "PPD-free" oxidative hair dyes, but also organic certified COSMOS certified VEGAN and HALAL certified. Things are becoming more and more desired. In addition, there is an increasing tendency to use recycled and sustainable natural raw materials as much as possible, and not only the ingredients, but also the environment-friendly in-house factories, manufacturing processes, and packaging that have received two certifications, COSMOS and ISO22716. Is becoming more demanding.

Special fair 01-028042

Izumi Saito, Pharmaceutics, 52 (4), 272-279, 1992 Fragrance Journal No.323, Vol.35 No.7, 72-78, 2007

An object of the present invention is to provide an oxidative hair dye composition that improves mixability while imparting a desired viscosity by combining a hydrophobically modified alkyl cellulose that is a cellulose derivative and a surfactant.

The present inventors have found that the above-mentioned problems can be solved by a combination of a hydrophobically modified alkyl cellulose which is a cellulose derivative and a surfactant. The present invention has been completed as a result of further research based on this finding. That is, the present invention includes the following aspects.

Item 1. (A) A first agent for oxidative hair dyeing and oxidative hair dyeing containing (A) a hydrophobic modified alkyl cellulose (HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER) which is a cellulose derivative, and (B) at least one surfactant. An oxidative hair dye composition having excellent mixability, which is used as one of the second agents for use.
Item 2. The oxidative hair dye composition according to Item 1, wherein the content of the hydrophobized modified alkyl cellulose is 0.0001 to 3% by mass with respect to 100% by mass of the oxidative hair dye composition.
Item 3. The oxidative hair dye composition according to Item 1 or 2, wherein the content of the surfactant is 5 to 20% by mass with respect to 100% by mass of the oxidative hair dye composition.
Item 4. An oxidative hair dye kit containing the first agent for oxidative hair dyeing or the second agent for oxidative hair dyeing using the oxidative hair dye composition according to any one of Items 1 to 3.
Item 5. An oxidative hair dyeing method comprising applying a first agent for oxidative hair dyeing or a second agent for oxidative hair dyeing using the oxidative hair dyeing agent composition according to any one of Items 1 to 4 to hair. ..

By using the oxidative hair dye composition of the present invention, it is possible to provide an oxidative hair dye composition having excellent mixability by imparting a desired viscosity. In addition, the present invention can also provide an oxidative hair dye composition that improves the mixing property while imparting a desired viscosity, an oxidative hair dye kit using the same, and an oxidative hair dyeing method.

It is a figure which showed the outline of the base break technology. It is a flow chart which shows the application method of the base break used in an Example, and the effect thereof. It is a figure which shows the detail of the base break used in an Example.

In the present invention, the "first agent for oxidative hair dyeing" includes a first agent containing an oxidative dye and an alkaline agent and a second agent containing an oxidant, and the first agent and the second agent at the time of use. Refers to the first agent in the oxidative hair dye kit used in combination with. Further, the "second agent for oxidative hair dyeing" refers to the second agent.

Although the present specification concludes with the scope of claims that specifically point out and explicitly claim the present invention, it is believed that the present invention will be better understood from the following description. All percentages, portions and ratios are based on the total weight of the compositions of the invention unless otherwise specified. All such weights for the presented ingredients are based on the concentration of active substance and therefore do not include carriers or by-products that may be included in commercial materials.

The present invention includes (A) a hydrophobic modified alkyl cellulose (HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER) which is a cellulose derivative (sometimes simply referred to as "hydrophobic modified alkyl cellulose" in the present specification) and (B) at least. It relates to an oxidative hair dye composition containing one kind of surfactant (in the present specification, it may be referred to as "oxidative hair dye composition of the present invention"). This will be described below.

1. 1. Oxidative hair dye composition (1st and 2nd agents for oxidative hair dyeing)
The present invention comprises one or more selected from (A) a hydrophobic modified alkyl cellulose (HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER), which is a cellulose derivative represented by the following structural formula (1), and (B) a surfactant. The present invention relates to an oxidative hair dye composition comprising. This will be described below. Hydrophobized modified alkyl cellulose is an effect enhancer of HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER and / or a salt thereof, and the HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER and / or the salt of HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER.

(A) Hydrophobized modified alkyl cellulose (HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER), which is a cellulose derivative, is represented by the following structural formula (1).

［式中、Ｒ１、Ｒ２及びＲ３は同一又は異なって、水素原子、低級アルキル基、基：−［ＣＨ２ＣＨ２−ｋ（ＣＨ３）ｋＯ］ｍＨ、又は、基：−ＣＨ２ＣＨ（ＯＨ）ＣＨ２ＯＣｊＨ２ｊ＋１である。ｎは１００〜１００００の整数、ｋは０又は１の整数、ｍは１〜１０の整数、ｊは６〜２６の整数を示す。］で表されるものであって、該疎水化変性アルキルセルロースが、基：−ＣＨ２ＣＨ（ＯＨ）ＣＨ２ＯＣｊＨ２ｊ＋１を必ず含むものである。

[In the formula, R1, R2 and R3 are the same or different, hydrogen atom, lower alkyl group, group:-[CH2CH2-k (CH3) kO] mH, or group: -CH2CH (OH) CH2OCjH2j + 1. n is an integer of 100 to 10000, k is an integer of 0 or 1, m is an integer of 1 to 10, and j is an integer of 6 to 26. ], And the hydrophobized modified alkyl cellulose always contains the group: -CH2CH (OH) CH2OCjH2j + 1.

(B) Surfactant The surfactant is not particularly limited as long as it is a surfactant that can be used as an oxidative hair dye, and known ones can be widely used. Examples of the surfactant include anionic surfactants, amphoteric surfactants, nonionic surfactants, cationic surfactants and the like. Among these, nonionic surfactants, cationic surfactants and the like are preferable, and nonionic surfactants are more preferable, from the viewpoint of being able to dye more uniformly and deeply.

Further, from the viewpoint of further reducing the adverse effect on the feel of the hair, an anionic surfactant, an amphoteric surfactant, a nonionic surfactant and the like are preferable, and the anionic surfactant and the nonionic surfactant are used in combination. , A combination of an amphoteric surfactant and a nonionic surfactant is more preferable. Therefore, from the viewpoint of being able to dye more uniformly and deeply and further reducing the adverse effect on the feel of the hair, at least one anionic surfactant or at least one amphoteric surfactant and at least one kind. It is preferable to use the nonionic surfactants in combination.

Surfactants include, for example, lauryl sulfate ester salt, polyoxyethylene alkyl ether sulfate salt, alkylbenzene sulfonate, polyoxyethylene alkyl ether phosphoric acid, polyoxyethylene alkylphenyl ether phosphoric acid, N-acyl amino acid salt, stearic acid. Anionic surfactants such as sodium, potassium palmitate, sodium cetyl sulfate, sodium lauryl sulfate, triethanolamine palmitate, sodium polyoxyethylene lauryl phosphate, sodium acylglutamate, surfactin; benzalkonium chloride, benzethonium chloride, chloride Cationic surfactants such as stearyltrimethylammonium, distearyldimethylammonium chloride, stearyldimethylbenzylammonium chloride; alkyldiaminoethylglycine hydrochloride, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauryldimethylaminoacetic acid Amphoteric surfactants such as betaine and lecithin; polyol fatty acid ester, glycerin monostearate, oil-based glycerin monooleate, ethylene glycol monostearate, propylene glycol monostearate, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, Polyoxyethylene fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene alkylphenol ether, polyoxyethylene sorbitol fatty acid ester, N-acyl amino acid ester, sucrose fatty acid ester, fatty acid alkylolamide, polyoxyethylene sterol, polyoxyethylene Nonionic surfactants such as lanolin, polyoxyethylene hydrogenated castor oil; fatty acid salts such as potassium laurate, potassium myristate; alkyl sulfates such as sodium lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate; laureth Polyoxyethylene alkyl sulfates such as sodium sulfate and triethanolamine laureth sulfate; sodium cocoyl methyl taurine, potassium cocoyl methyl taurine, sodium lauroyl methyl taurine, sodium myristyl methyl taurine, sodium lauroyl methyl alanine, sodium lauroyl sarcosin, and lauroyl sarcosin triethanol. Acyl N-methylami such as amine and sodium methylalanine lauroyl glutamate Sulfonic acid; acyl amino acid salts such as sodium cocoyl glutamate, triethanolamine cocoyl glutamate, sodium lauroyl glutamate, sodium myristyl glutamate, sodium stearoyl glutamate, ditriethanolamine palmitoyl aspartate, cocoylalanine triethanolamine; poly such as sodium laures acetate. Oxyethylene alkyl ether acetate; succinic acid ester salts such as lauroyl monoethanolamide sodium succinate; fatty acid alkanolamide ether carboxylate; acyl lactate; polyoxyethylene fatty amine sulfate; fatty acid alkanolamide sulfate; cured coconut oil Fatty acid glyceride sulfates such as sodium glycerin sulfate; alkylbenzene polyoxyethylene sulfates; olefin sulfonates such as sodium α-olefin sulfonate; alkyl sulfosuccinates such as lauryl lauryl sulfosuccinate, sodium dioctyl sulfosuccinate; Alkyl ether sulfosuccinates such as laures disodium, monolauroyl monoethanolamide polyoxyethylene sodium sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate; alkylbenzene sulfonic acids such as sodium tetradecylbenzene sulfonate, triethanolamine tetradecylbenzene sulfonic acid Salts; alkylnaphthalene sulfonates; alkane sulfonates; α-sulfo fatty acid methyl ester salts; acyl acetylateate; alkyl glycidyl ether sulfonates; alkyl sulfoacetates; sodium laures phosphate, sodium dilaures phosphate, sodium trilaureth phosphate Alkyl ether phosphate salts such as sodium monoolesphosphate; alkyl phosphate ester salts such as potassium lauryl phosphate; sodium caseinate; alkylaryl ether phosphate; fatty acid amide ether phosphate; phosphatidylglycerol, phosphatidylinositol, phosphatidic acid Phosphorlipids such as; carboxylic acid-modified silicones, phosphate-modified silicones, sulfate-modified silicones and other silicone-based anionic surfactants and other anionic surfactants; Oxyethylene cetyl ethers), steareths (polyoxyethylene stearyl ethers), behenes Polyoxyethylene alkyl ethers with various polyoxyethylene additions such as (polyoxyethylene behenyl ethers), isosteares (polyoxyethylene isostearyl ethers), octyldodeces (polyoxyethylene octyldodecyl ethers); polyoxyethylene alkyl ethers. Phenyl ether; Polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil monoisostearate, polyoxyethylene hydrogenated castor oil triisostearate, polyoxyethylene hydrogenated castor oil monopyroglutamic acid monoisostearic acid Diester, polyoxyethylene hydrogenated castor oil, castor oil such as maleic acid and cured castor oil derivatives; polyoxyethylene phytosterol; polyoxyethylene cholesterol; polyoxyethylene cholesterol; polyoxyethylene lanolin; polyoxyethylene reduced lanolin; polyoxyethylene -Polyoxypropylene cetyl ether, polyoxyethylene / polyoxypropylene 2-decyltetradecyl ether, polyoxyethylene / polyoxypropylene monobutyl ether, polyoxyethylene / polyoxypropylene hydrogenated lanolin, polyoxyethylene / polyoxypropylene glycerin Polyoxyethylene / polyoxypropylene alkyl ether such as ether; polyoxyethylene / polyoxypropylene glycol; (poly) glycerin polyoxypropylene glycol such as PPG-9 diglyceryl; glyceryl stearate, glyceryl isostearate, glyceryl palmitate, Glyceryl fatty acid partial esters such as glyceryl myristate, glyceryl oleate, coconut oil fatty acid glyceryl, monocotton seed oil fatty acid glycerin, monoerucate glycerin, sesquioleate glycerin, α, α'-pyroglutamate oleate glycerin, monostearate glycerin malic acid, etc. Kind; Polyglyceryl stearate-2, 3, 4, 4, 5, 6, 8, 10, Polyglyceryl distearate-6, 10, Polyglyceryl tristearate-2, Polyglyceryl decastearate-10, Isosteare Polyglyceryl acid-2, 3, 4, 4, 5, 6, 8, 10, 10, Polyglyceryl diisostearate-2 (diglyceryl diisostearate), 3, 10, 10, Polyglyceryl triisostearate-2, Tetraiso Polyglyceryl-2 stearate, polyglyceryl-10 decaisostearate, polyglyceryl oleate-2, 3, 4, 5, 6, 6, 8, polyglyceryl dioleate-6, polyglyceryl trioleate-2, Polyglycerin fatty acid ester such as polyglyceryl-10 decaoleate; ethylene glycol monofatty acid ester such as ethylene glycol monostearate; propylene glycol monofatty acid ester such as propylene glycol monostearate; pentaerythritol partial fatty acid ester; sorbitol partial fatty acid ester; Thor partial fatty acid ester; multi-toll ether; sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, penta-2-ethylhexylate. Sorbitane fatty acid esters such as diglycerol sorbitan and diglycerol sorbitan tetra-2-ethylhexylate; sugar derivative partial esters such as sucrose fatty acid ester, methyl glucoside fatty acid ester and trehalose undecylate; alkyl glucosides such as caprylyl glucoside; alkyl polyglycosides Lanoline alcohol; reduced lanolin; polyoxyethylene fatty acid monos and diesters such as polyoxyethylene distearate, polytylene glycol diisostearate, polyoxyethylene monooleate, polyoxyethylene dioleate; polyoxyethylene propylene Glycol fatty acid ester; Polyoxyethylene glycerin fatty acid ester such as polyoxyethylene glycerin monostearate, polyoxyethylene glycerin monoisostearate, polyoxyethylene glycerin triisostearate; polyoxyethylene glycerin fatty acid ester; polyoxyethylene sorbitan Polyoxyethylene sorbitan fatty acid esters such as monooleate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tetraoleate; polyoxyethylene sorbitol monolaurate, polyoxyethylene sorbitol monooleate , Polyoxyethylene sorbitol pentaoleate, polyoxyethylene sorbitol monostearate, etc. Rubitol fatty acid ester; Polyoxyethylene methyl glucoside fatty acid ester; Polyoxyethylene alkyl ether fatty acid ester; Polyoxyethylene animal and vegetable fats and oils such as polyoxyethylene sorbitol honey; Alcohol glyceryl ethers; Polyhydric alcohol alkyl ethers; Polyoxyethylene alkylamines; Tetrapolyoxyethylene / tetrapolyoxypropylene-ethylenediamine condensates; Natural surfactants such as saponin and sophorolipid; Polyoxyethylene fatty acid amides; Palm oil fatty acid monoethanolamide (cocamide MEA), palm oil fatty acid diethanolamide (cocamide DEA), lauric acid monoethanolamide (lauramide MEA), lauric acid diethanolamide (lauramide DEA), lauric acid monoisopropanolamide (lauramide MIPA), Fatty alcohol alkanolamides such as palmitate monoethanolamide (partamide MEA), palmitate diethanolamide (partamide DEA), palm oil fatty acid methylethanolamide (cocamidomethyl MEA); lauramine oxide, cocamine oxide, stearamine oxide, behena Alcohol-modified silicone oxides such as minoxide; alkylethoxydimethylamine oxides; polyoxyethylene alkyl mercaptans; polyether-modified silicones such as dimethicone copolyol, polysiloxane / oxyalkylene copolymers, polyglycerin-modified silicones, sugar-modified silicones, etc. Nonionic surfactants such as silicone-based nonionic surfactants; among cationic surfactants, alkyltrimethylammonium chlorides such as behentrimonium chloride, stealtrimonium chloride, cetrimonium chloride, and lauryltrimonium chloride; stearyl; Alkyltrimethylammonium bromide such as trimonium bromide; Dialkyldimethylammonium chloride such as distearyldimonium chloride and dicocodimonium chloride; fatty acid amidamines such as stearamide propyldimethylamine and stearamide ethyldiethylamine and salts thereof; stearoxypropyldimethylamine Alcohol ether amines and salts thereof or quaternary salts such as; ethyl sulfate long chain branched fatty acids (12-31) aminopropyl ethyl Lanolin ethyl sulfate fatty acid aminopropyl ethyldimethylammonium and other fatty acid amide-type quaternary ammonium salts; polyoxyethylene alkylamine and its salt or quaternary salt; alkylamine salt; fatty acid amide guanidium salt; alkyletheraminemonium Salts; alkyltrialkylene glycol ammonium salts; benzalconium salts; benzethonium salts; pyridinium salts such as cetylpyridinium chloride; imidazolinium salts; alkylisoquinolinium salts; dialkylmoriphonium salts; polyamine fatty acid derivatives; aminopropyldimethicone And amino-modified silicones such as amodimethicone, cationic-modified silicones, cationic-modified and polyether-modified silicones, and silicone-based cationic surfactants such as amino-modified and polyether-modified silicones; lauryl betaine (lauryldimethylaminoacetic acid betaine), etc. N-alkyl-N, N-dimethyl amino acid betaine; fatty acids such as cocamidopropyl betaine and lauramidopropyl betaine Amidoalkyl-N, N-dimethyl amino acid betaine; imidazoline-type betaine such as sodium cocoamphoacetate and sodium lauroamphoacetate; alkyl Alkyl sulfobetaine such as dimethyl taurine; Sulfate betaine such as alkyl dimethylaminoethanol sulfate ester; Phosphate betaine such as alkyl dimethyl amino ethanol phosphate; Sphingophosphory lipids such as phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, sphingomyelin , Resolecithin, hydrogenated soybean phospholipids, partially hydrogenated soybean phospholipids, hydrogenated egg yolk phospholipids, partially hydrogenated egg yolk phospholipids, phospholipids such as lecithin hydroxide; amphoteric surfactants such as silicone-based amphoteric surfactants One or more selected from polymer surfactants such as polyvinyl alcohol, sodium alginate, starch derivatives, traganth gum, acrylate / alkyl methacrylic acid copolymers; various silicone-based surfactants.

In addition to the above-mentioned components, the oxidative hair dye of the present invention may be a solvent, an oily component other than (A) and (B), a direct dye, a stabilizer for an oxidative dye, and emulsification, if necessary depending on the dosage form and the like. Oxidation dyeing of state stabilizers, pH adjusters, animal and plant extracts, water-soluble polymers, amino acids and their derivatives, proteins and their derivatives, vitamins, UV protection agents, antioxidants, metal ion blockers, fragrances, etc. It can contain known ingredients that can be incorporated into the agent composition.

When the oxidative hair dye composition of the present invention is used as the first agent for oxidative hair dye, it contains (A) and (B) described above. When the oxidative hair dye composition of the present invention is used as the second agent for oxidative hair dyeing, it usually contains at least one kind of oxidant in addition to the above-mentioned (A) and (B).

The oxidizing agent is not particularly limited as long as it can be blended in the second agent for oxidative hair dyeing, and is not particularly limited. For example, hydrogen peroxide, urea peroxide, melamine peroxide, sodium peroxide, potassium percarbonate, and perhou Sodium acid, potassium peroxide, ammonium persulfate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, hydrogen peroxide adduct of sulfate, peroxide peroxide Examples thereof include hydrogen adducts and hydrogen peroxide adducts of pyrophosphate. These oxidizing agents may be blended alone or in combination of two or more. Among these oxidizing agents, hydrogen peroxide is preferable because it has excellent bleaching power for hair.

The content of the oxidizing agent is not particularly limited as long as the hair can be bleached and dyed well, and can be appropriately adjusted. When hydrogen peroxide is used as the oxidizing agent, the content thereof is, for example, 0.3 to 12% by mass, preferably 1 to 8% by mass, more preferably 3 with respect to the second agent for oxidative hair dyeing. ~ 6% by mass.

The dosage form when the present invention is applied as a second agent for oxidative hair dyeing is not particularly limited, and various known dosage forms such as cream, transparent gel, translucent gel, milky liquid, liquid, etc. A foam-like dosage form can be adopted. The pH of the second agent for oxidative hair dyeing of the present invention is usually adjusted to pH 2 to 5 (preferably 2.5 to 3.5).

2. Oxidation Hair Dyeing Agent Kit The present invention includes an oxidative hair dyeing agent kit of the present invention and a second agent for oxidative hair dyeing of the present invention. (Sometimes referred to as an oxidative hair dye kit). The single oxidative hair dye composition of the present invention, or a combination of the first agent and the second agent for oxidative hair dye of the present invention is targeted.

The first agent for oxidative hair dyeing usually contains an oxidative dye, an alkaline agent, an oily component, a surfactant, a solvent and the like. The second agent for oxidative hair dyeing usually contains an oxidant and the like in addition to these.

Examples thereof include a dye intermediate that develops color by polymerization alone, or a combination of a dye intermediate that develops color by polymerization in combination with a coupler and the coupler. The dye intermediate is not particularly limited as long as it is used in a conventionally known first agent composition for hair dyeing. For example, p-phenylenediamine, toluene-2,5-diamine, toluene-3, Examples thereof include 4-diamine, o-aminophenol, p-aminophenol, and p-methylaminophenol.

Couplers that can be combined with dye intermediates as needed include, for example, hydrochloric acid 2,4-diaminophenoxyethanol, m-phenylenediamine, 2,6-diaminopyridine, 5-aminoortocresol, m-aminophenol, α. -Naphthol, hydroquinone, resorcinol, catechol, etc. are commonly used. The alkaline agent is not particularly limited as long as it is used in a conventionally known first agent composition for hair dyeing, and is, for example, aqueous ammonia, monoethanolamine, triethanolamine, potassium hydroxide, sodium hydroxide. And so on.

In the oxidative hair dyeing agent kit of the present invention, the first agent for oxidative hair dyeing of the present invention and the second agent for oxidative hair dyeing of the present invention are contained in separate containers. Alternatively, the second agent for oxidative hair dyeing of the present invention and the existing first agent for oxidative hair dyeing are housed in separate containers.

3. Hair Dyeing and Application Method The present invention includes applying the first agent for oxidative hair dyeing of the present invention and the second agent for oxidative hair dyeing of the present invention to hair, or the first agent for oxidative hair dyeing and Any one of the second agents for oxidative hair dyeing of the present invention contains a hair dyeing method and a coating method containing the oxidative hair dye of the present invention, particularly the first agent containing an oxidative dye and an alkaline agent, and an oxidant. A method for applying an oxidative hair dye kit containing a second agent and using a mixture of the first agent and the second agent at the time of use to the dyed and newly formed parts of the hair (in the present specification, "the present invention". It may also be referred to as "hair dyeing method").

The mode of application is not particularly limited as long as the first agent for oxidative hair dyeing of the present invention and the second agent for oxidative hair dyeing of the present invention are in a mixed state on the hair. For example, a mode in which the first agent for oxidative hair dyeing of the present invention and the second agent for oxidative hair dyeing of the present invention are mixed and then applied to the hair, or the first agent for oxidative hair dyeing of the present invention is applied to the hair. After that, an embodiment in which the second agent for oxidative hair dyeing of the present invention is applied to the hair can be mentioned.

The mixing ratio of the first agent composition for hair dyeing and the second agent composition for hair dyeing may be adjusted according to the desired brightness and color. For example, the mass ratio is 1: 1 to 1:10. Can be a degree.

After application, it is usually left for a certain period of time (for example, 10 to 60 minutes) so that the reaction required for oxidative hair dyeing occurs sufficiently. After that, it is desirable to wash away the excess components by washing the hair with shampoo or the like and dry it.

4. Application method by base break (technique to erase the boundary line of hair) (1) It is used to blend dark new hair and bright dyed hair, and can express natural gradation in a short time with low damage.
(2) Even when fading, the conventional retouch and boundary line are difficult to understand, and there is little damage, so there is a great advantage.

The method of applying the oxidative hair dye to the new part is preferably as follows. First, the place to perform the treatment can be a set surface or a shampoo stand. A set surface that allows new hair and dyed hair to be applied separately is preferable. Further, it is preferable that the oxidative hair dye to be applied has a viscosity that allows the newly dyed hair and the dyed hair to be properly applied. After application, it is left for a predetermined time, but the leaving time at this time is preferably 10 minutes or the like. Here, the mechanism of the oxidative hair dye consists of bleaching and coloring. In general, decolorization exerts a sufficient effect even 10 minutes after application, whereas 10 minutes is insufficient for color development. Since the color is developed in the order of blue → green → yellow → orange → red → purple, it is preferable to set the leaving time for a color that develops blue and does not develop red. After the elapse of the leaving time, it is washed with water and dried, and then an oxidative hair dye is applied to the dyed part. Here, the oxidative hair dye may be applied to the newly dyed portion at the same time as the dyed portion. Then, after application, it is left for a predetermined time, washed with water and dried to complete.

FIG. 1 is a diagram showing an outline of a base break technique. As shown in FIG. 1, the base break technique is intended for people who have had hair coloring even once. In the base break technique, a hair color centered on a bluish tint, which has a lifting force, is applied to the new part for 10 minutes to simultaneously develop and decolorize the new part. For the dyed part, use an alkaline color that does not lift and develop the color. The base break technique is a treatment that creates a natural gradation between new hair and dyed hair. At the time of fading, the difference between new hair / dyed hair 1 / dyed hair 2 becomes small because the used drug does not have the ability to lift.

Hereinafter, the present invention will be described in detail based on examples, but the present invention is not limited to these examples.

(1) Preparation of First Agent for Oxidative Hair Dyeing and Second Agent for Oxidative Hair Dyeing A state in which the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing are mixed according to the formulation shown in Tables 2 to 4 described later. An oxidative hair dye was prepared. The mixing ratio of the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing is 1: 1. The adjustment procedure is the same as that described in, for example, JP-A-2017-57161, JP-A-2017-57164, JP-A-2017-57165, and the like. In Tables 2 to 4, the numerical values relating to the components indicate the mass% of the components with respect to 100% by mass of the oxidative hair dye (oxidative hair dye composition), and the "remaining portion" refers to each component other than water. It is shown that the amount of water was added to the total amount so as to be 100% by mass.

(2) Hair Dyeing Treatment A predetermined amount of the oxidative hair dyeing agent prepared in "(1) Preparation of the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing" was taken and mixed until uniform. Apply the brush to which the obtained mixture is attached to the front and back of a fan-shaped hair bundle of 1 g of white hair (Matthew Japan, Shigle Tuft (human hair white)), and leave it at 30 ° C for 30 minutes. Hair was dyed by. Then, the hair bundle was washed with water, and the hair bundle after washing with water was washed once with a predetermined shampoo composition and dried.

(3) Evaluation of feel The feel of the hair bundle treated by the hair dyeing treatment when passed through a handgrip was sensory evaluated by 10 specialized panelists. As shown in the table below, the evaluation is performed in 3 stages (3 points: no catch can be confirmed, 2 points: no catch can be confirmed, 1 point: no catch can be confirmed), and each panelist's evaluation is performed. The points were totaled and ranked according to the following criteria. Those evaluated as ◎ and ○ are acceptable as products. The results are shown in Tables 2-4.
<Criteria>
◎: The total score is 26 points or more,
○: The total score is 20 points or more and 25 points or less,
×: The total score is 19 points or less.

(4) Evaluation of ease of mixing Among the oxidative hair dyes prepared in "(1) Preparation of the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing", the second agent for oxidative hair dyeing Was placed in a ready-made container for the second agent for hair dyeing [Number Three Rechroma Second Agent Container (1.2 L) manufactured by Number Three Co., Ltd.] until the 8th minute. Next, 80 g of the second agent for oxidative hair dyeing was squeezed out of this container and mixed with 80 g of the prepared first agent for oxidative hair dyeing until it became uniform, which was carried out by five specialized panelists.
Evaluation is performed in 5 stages (5 points: very easy to mix, 4 points: easy to mix, 3 points: neither can be said, 2 points: difficult to mix, 1 point: very difficult to mix), and each The panelists' scores were totaled and ranked according to the following criteria. Those evaluated as ◎ and ○ are acceptable as products. In this evaluation, the shorter the time until uniform mixing under constant stirring conditions, the higher the score. The results are shown in Tables 2-4.
<Criteria>
◎: The total score is 20 points or more,
◯: The total score is 15 points or more and less than 20 points,
Δ: The total score is 10 points or more and less than 15 points,
×: The total score is less than 10.

FIG. 2 is a flow chart showing the application method of the base break used in the examples and its effect. The application method of the base break used in the examples and its effect are described below. As for the method of applying the base break, as shown in FIG. 2, first, the scene in which the oxidative hair dye was used was set as the set surface, and the oxidative hair dye was applied to the new portion (FIG. 2A). Then, it was left for 10 minutes. The oxidative hair dye is adjusted to a viscous composition that does not drip even when applied. Next, the hair was washed with water and dried (Fig. 2B). Then, an oxidative hair dye was applied to the dyed portion (FIG. 2C). At the same time, an oxidative hair dye was applied to the new part. Then, it was left for 10 minutes, and finally, the hair was washed and dried with water (Fig. 2D). FIG. 3 is a diagram showing details of the base break used in the examples. As shown in FIG. 3, in the examples, the adverse effect on the feel of the finished hair (for example, the roughness of the cuticle) is further reduced, and the hair becomes stable over time.

Regarding the effect of base break, base break refers to a technique for erasing the boundary line of hair. It is used to blend dark new hair and bright dyed hair, and can express natural gradation in a short time with low damage. Even when fading, the conventional retouch and boundary line are difficult to understand, and there is little damage, so there is a great advantage.

As described above, the first agent for oxidative hair dyeing, the oxidative hair dyeing agent kit and the oxidative hair dyeing method according to the present invention are useful for hair coloring, and are hydrophobically modified alkyl celluloses and surfactants which are cellulose derivatives. By the combination of the above, it is effective as an oxidative hair dye composition, an oxidative hair dye kit, and an oxidative hair dyeing method capable of improving the mixing property while imparting a desired viscosity.

Claims (5)

The content of (A) is 0.001% by mass, 0.01% by mass, 0.1% by mass, 0.5% by mass, 0.8% by mass with respect to 100% by mass of the present oxidative hair dye composition. , 1% by mass, 2% by mass, hydroxypropylmethylcellulose stearoxyester of hydrophobically modified alkylcellulose, which is a cellulose derivative,
The content (B) is 0.5% by mass, 1% by mass, 3% by mass, 5% by mass to 20% by mass, and polyoxy, based on 100% by mass of the present oxidative hair dye composition. A nonionic surfactant containing ethylenecetyl ether, an anionic surfactant containing disetyl phosphate, and one type of surfactant containing any of a cationic surfactant containing stearyltrimethylammonium chloride.
(C) Oils and fats containing cetanol and
(D) With water
It is used as either a first agent for oxidative hair dyeing or a second agent for oxidative hair dyeing, and is a mixture of the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing. An oxidative hair dye composition having excellent mixability, wherein the agent is used in a method for applying an oxidative hair dye including a base break technique. The mixing ratio of the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing is 1: 1 to 1:10 in terms of mass ratio.
The oxidative hair dye composition according to claim 1. This oxidative hair dye composition is used for both the first agent for oxidative hair dyeing and the second agent for oxidative hair dyeing.
The oxidative hair dye composition according to claim 1 or 2. An oxidative hair dye kit comprising the first agent for oxidative hair dyeing or the second agent for oxidative hair dyeing using the oxidative hair dye composition according to any one of claims 1 to 3. A method for oxidative hair dyeing, which comprises applying a first agent for oxidative hair dyeing or a second agent for oxidative hair dyeing using the oxidative hair dyeing agent composition according to any one of claims 1 to 4 to hair.

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