JP2009256277A - Pre-treating agent composition for hair dyeing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure level dyeability and hair-dyeing power in addition to a hair-modifying effect in hair-dyeing treatments by a pretreatment in hair dyeing. <P>SOLUTION: This pre-treating agent composition for the hair dyeing is provided by containing an ester compound of a 4-6C unsaturated dicarboxylic acid with a 12-24C linear or branched, saturated or unsaturated alcohol. Especially preferably, the ester compound is a diester compound. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention improves the hair dyeing power and leveling property of the hair dye by using it before the hair dyeing operation, and further shows the effect of preventing hair damage by the hair dyeing treatment. It relates to a processing agent.

  In recent years, with the diversification of hairstyles, chemical treatments such as hair dyeing agents such as oxidative hair dyes and acid hair dyes, bleaching agents, permanent wave agents, hair straighteners, excessive brushing and blowing. Due to the effects of daily physical treatment or ultraviolet rays, damaging hair, particularly cysteic acid tends to be generated on the hair surface. If cysteic acid is present on the hair surface, the hydrophilicity of the hair surface will be higher than that of the healthy part, and excessive drug penetration will affect the hair coloring power and color of the hair dye, and chemical treatment The difference in dyeing between the damaged part and the healthy part of the new hair is large, so that there is a problem that the leveling is poor and the expected finish cannot be obtained.

  Conventionally, as disclosed in, for example, Patent Documents 1 and 2 below, for hair dyeing operations on damaged hair, a composition containing a conditioning component such as a protein hydrolyzate is applied as a pretreatment agent to the hair. A method has been proposed for obtaining leveling by protecting the damaged part of the film.

JP-A-10-226629 However, even if the hair dyeing treatment is carried out by the above method, a certain effect is observed in improving the texture after hair dyeing, but protein hydrolyzate adsorbs only to the damaged part. Therefore, the uniformity of the protective effect with the healthy part was poor, and sufficient leveling was not obtained. Moreover, since the protein hydrolyzate or the like flows out together with the dye during shampooing after the hair dyeing treatment, a sufficient effect has not yet been obtained with respect to the hair dyeing power.

  The present invention improves the leveling and dyeing power by treating the hair before hair dyeing so that it is evenly adsorbed on the damaged and healthy parts and makes the entire hair hydrophobic. Another object of the present invention is to provide a pretreatment agent for hair dyeing, which further suppresses the production of cysteic acid by the hair dyeing treatment and is excellent in the effect of preventing hair damage.

  The present inventor uses a composition containing an ester compound of an unsaturated dicarboxylic acid having 4 to 6 carbon atoms and a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms before hair dyeing. When the treatment is performed, in addition to the hair modification effect that reduces and repairs damage to the hair surface before and during the hair dyeing treatment, an excellent effect is also obtained in suppressing the production of cysteic acid by the hair dyeing treatment. As a result, it was found that excellent leveling and hair dyeing power were ensured in the hair dyeing treatment, and the present invention was completed.

(First invention)
The configuration of the first invention of the present application for solving the above problems is an ester compound of an unsaturated dicarboxylic acid having 4 to 6 carbon atoms and a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms. It is a pretreatment agent composition for hair dye containing 1 or more types of these.

  In the pretreatment composition for hair dyeing of the first invention, as a first effect, the above-mentioned specific ester compound is strongly bound or adsorbed to the hair surface, and the hair surface was present before the hair dyeing treatment. The damage of the hair is reduced and repaired in advance, and the damage of the hair surface that occurs during the hair dyeing treatment is also reduced and repaired well. It is considered that this effect is related to the relationship between the unsaturated bond and the two carboxyl groups in the unsaturated dicarboxylic acid having 4 to 6 carbon atoms, and the above alcohol bonded to the carboxyl group. This first effect can also be expected when the above-mentioned specific ester compound is contained in the hair dye treatment agent itself or in the post-treatment agent of the hair dye treatment agent.

  As a second effect of the pretreatment composition for hair dyeing of the first invention, the generation of cysteic acid by the subsequent hair dyeing treatment is favorably suppressed. As a result, excellent leveling and hair dyeing power in the hair dyeing treatment are achieved. Is secured. As demonstrated in the Examples section of this specification, this second effect is a unique effect as a pretreatment agent for hair dyeing, and the above-mentioned specific ester compound is contained in the hair dyeing agent itself. Or when it is contained in the post-treatment agent of the hair dye treatment agent, it cannot be expected substantially.

(Second invention)
The structure of the second invention of the present application for solving the above problem is that the ester compound according to the first invention is a diester compound, and one or both of the carboxyl groups of the unsaturated dicarboxylic acid is a straight chain having 12 to 24 carbon atoms. It is a pretreatment agent composition for hair dyeing which forms an ester bond with the branched or saturated saturated or unsaturated alcohol.

  The ester compound according to the first invention includes a monoester compound and a diester compound, and as specified in the second invention, a diester compound is particularly preferable. In such a diester compound, the alcohol defined in the first invention is bonded to one or both ester portions of the unsaturated dicarboxylic acid, and such an alcohol is bonded to both ester portions. Especially preferred.

(Third invention)
The structure of the third invention of the present application for solving the above problem is that the unsaturated dicarboxylic acid according to the first or second invention is such that the carbon atom constituting at least one carboxyl group forms a carbon-carbon unsaturated bond. It is a pretreatment agent composition for hair dyeing which is a single bond with the carbon atom to do.

  As the unsaturated dicarboxylic acid according to the first invention or the second invention, as defined in the third invention, at least one carboxyl group (ester site) is adjacent to the intercarbon unsaturated bond site, More preferred. Since such an intercarbon unsaturated bond has a higher reaction activity, the ester compound is more strongly bound or adsorbed to the hair surface.

  In addition, when carbon number of unsaturated dicarboxylic acid is 4 or 5, it becomes an unsaturated dicarboxylic acid prescribed | regulated to 3rd invention inevitably.

  In the pretreatment composition for hair dyeing of the present invention, in addition to the effect of preventing hair damage, leveling ability and hair dyeing power in hair dyeing treatment can be ensured.

  Next, modes for carrying out the present invention will be described including the best mode.

[Components of pretreatment composition for hair dyeing]
(Characteristic components of pre-treatment composition for hair dyeing)
The pre-treatment composition for hair dyeing of the present invention is an ester compound (hereinafter referred to as a C4-6 unsaturated dicarboxylic acid) and a C12-24 linear or branched saturated or unsaturated alcohol. It is characterized in that it contains one or more of “hair modifying agent components” and is used as a pretreatment agent for hair dyeing.

  The hair modifier component may be a monoester of the above-mentioned unsaturated dicarboxylic acid, but is preferably a diester in order to ensure the effect of the present invention.

  In addition, one or both of the two carboxyl groups in the unsaturated dicarboxylic acid may form an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms. is necessary. When the hair modifier component is a diester of the above unsaturated dicarboxylic acid, the two carboxyl groups of the unsaturated dicarboxylic acid are a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms. When an ester bond is formed, only one of the two carboxyl groups forms an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms, and the other carboxyl group is In some cases, ester bonds are formed with other alcohols. Among these, the hair modifier component which is a diester of the above-mentioned unsaturated dicarboxylic acid, in particular, a linear or branched saturated or unsaturated alcohol in which the two carboxyl groups of the unsaturated dicarboxylic acid have 12 to 24 carbon atoms. A hair modifier component that forms an ester bond with is preferred.

  These ester compounds in the hair dye pretreatment composition of the present invention may be any ester compound having the ester bond, and are not limited to those produced from the corresponding dicarboxylic acid and alcohol.

  An ester compound in which two carboxyl groups in an unsaturated dicarboxylic acid form an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms is, for example, an unsaturated dicarboxylic acid or an unsaturated dicarboxylic acid. The acid anhydride and the corresponding long-chain alcohol compound can be obtained by adding a catalyst in a solvent capable of azeotropic dehydration such as toluene to form a dehydration ester, and then removing the solvent.

  In addition, one of two carboxyl groups in the unsaturated dicarboxylic acid forms an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms, and the other carboxyl group is an ester with another alcohol. For example, the ester compound forming the bond may be prepared by adding a catalyst in an azeotropic dehydration solvent such as toluene with unsaturated dicarboxylic acid or unsaturated dicarboxylic anhydride and two or more corresponding alcohol compounds. After dehydrating esterification, it can be obtained by distillation or separation and purification with a silica gel column using a suitable developing solvent.

  As the unsaturated dicarboxylic acid having 4 to 6 carbon atoms, one in which at least one of the carboxyl groups constituting the carboxyl group is single-bonded with the carbon atom constituting the carbon-carbon unsaturated bond is more preferable. Preferred examples of the unsaturated dicarboxylic acid having 4 to 6 carbon atoms include fumaric acid, maleic acid, acetylenedicarboxylic acid, itaconic acid, citraconic acid, trans-glutaconic acid, trans, trans-muconic acid, cis, cis-mucon. An acid etc. are mentioned. Of these, maleic acid is preferred.

  Examples of the linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms include lauryl alcohol, 1-tridecanol, myristyl alcohol, 1-pentadecanol, cetyl alcohol, 1-heptadecanol, Stearyl alcohol, 1-nonadecanol, arachin alcohol, 1-henicosanol, behenyl alcohol, 1-tricosanol, 1-tetracosanol, 2-dodecanol, 4-methyl-1-dodecanol, 2-tridecanol, 4-methyl-1- Tridecanol, 2-tetradecanol, 4-methyl-1-tetradecanol, 2-pentadecanol, 2-hexadecanol, 7-methyl-1-hexadecanol, 4-heptadecanol, isostearyl alcohol, 2-octadecanol, 2-nona Canol, 9-methyl-1-nonadecanol, 2-dodecen-1-ol, 8,10-dodecadien-1-ol, 7-dodecyn-1-ol, 2-tridecen-1-ol, 9-tetradecene-1- All, 9,12-tetradecadien-1-ol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, 11-icosen-1-ol, 5,8,11,14-icosatetraen-1-ol, 13- Docosen-1-ol, 2,6,10-trimethyl-5,9-undecadien-1-ol, 3,7,11,15-tetramethyl-2-hexadecen-1-ol, 3,7,11,15 -Tetramethyl-2,6,10,14-hexadecatetraen-1-ol and the like. Of these, linear or branched saturated or unsaturated alcohols having 18 to 22 carbon atoms are preferable, linear or branched unsaturated alcohols having 18 to 22 carbon atoms are more preferable, and oleyl alcohol is particularly preferable. preferable. As these alcohols as a constituent of the hair modifier component, a single type of alcohol may be used, or in the case where the hair modifier component is a diester, two types of alcohols may be used.

  Furthermore, one of the two carboxyl groups in the unsaturated dicarboxylic acid forms an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms, and the other carboxyl group is an ester with another alcohol. In the case of an ester compound forming a bond, the other alcohol is, for example, an alcohol having 1 to 11 carbon atoms, preferably an alcohol having 1 to 8 carbon atoms, specifically methyl alcohol, ethyl alcohol, isopropyl alcohol, Examples include octyl alcohol.

  Examples of the ester compound in which the two carboxyl groups in the unsaturated dicarboxylic acid form an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms include, for example, the unsaturated dicarboxylic acid and the alcohol And specifically, dilauryl maleate, dimyristyl maleate, dicetyl maleate, distearyl maleate, dibehenyl maleate, dioleyl maleate, dilinoleyl maleate, dilinolenyl maleate, di (11 maleate) -Icocenyl), diisostearyl maleate, di (3,7,11,15-tetramethyl-2-hexadecenyl) maleate (cetyl) (oleyl), maleic acid (oleyl) (stearyl), maleic acid (Linoleil) (oleil) Maleic acid (icosenyl) (oleyl), maleic acid (linolenyl) (oleyl), maleic acid (linolenyl) (linoleyl), maleic acid (linoleyl) (stearyl), dilauryl fumarate, dimyristyl fumarate, dicetyl fumarate, fumaric acid Distearyl, dibehenyl fumarate, diisostearyl fumarate, dioleyl fumarate, dilinoleyl fumarate, dilinolenyl fumarate, di (11-icosenyl) fumarate, di (3,7,11,15-tetramethyl-2) -Hexadecenyl), fumaric acid (cetyl) (oleyl), fumaric acid (oleyl) (stearyl), fumaric acid (linoleyl) (oleyl), fumaric acid (icosenyl) (oleyl), fumaric acid (linolenyl) (oleyl), fumaric acid Acid (linolenyl) (linoleyl), fu Luric acid (linoleyl) (stearyl), distearyl acetylenedicarboxylate, dioleyl acetylenedicarboxylate, distearyl itaconate, dioleyl itaconate, distearyl citraconic acid, dioleyl citraconic acid, trans-glutaconic acid distearyl, trans-glutaconic acid dioleyl , Trans, trans-muconate distearyl, trans, trans-muconate dioleyl, cis, cis-muconate distearyl, cis, cis-muconate dioleyl, and the like. Among them, considering the affinity with damaged parts on the hair surface and the effect of inhibiting cysteic acid production, dilauryl maleate, dimyristyl maleate, dicetyl maleate, distearyl maleate, dibehenyl maleate, diisostearyl maleate, maleic acid Dioleyl, dilinoleyl maleate, dilinolenyl maleate, di (11-icocenyl) maleate, di (3,7,11,15-tetramethyl-2-hexadecenyl) maleate, cetyl maleate (oleyl), maleic acid (Oleyl) (stearyl), maleic acid (linoleyl) (oleyl), maleic acid (icosenyl) (oleyl), maleic acid (linolenyl) (oleyl), maleic acid (linolenyl) (linoleyl), maleic acid (linoleyl) (stearyl) ) Preferably ester compounds, distearyl maleate, dioleyl maleate are more preferred. Furthermore, in terms of saturated or unsaturated alcohols, diester compounds with unsaturated alcohols are preferred in terms of hair dyeing power.

  In addition, one of two carboxyl groups in the unsaturated dicarboxylic acid forms an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms, and the other carboxyl group is an ester with another alcohol. Examples of the ester compound forming a bond include maleic acid (ethyl) (oleyl), maleic acid (ethyl) (stearyl), maleic acid (ethyl) (isostearyl), maleic acid (ethyl) (cetyl), Examples thereof include maleic acid (octyl) (oleyl), maleic acid (octyl) (stearyl), maleic acid (octyl) (isostearyl) and the like.

  These hair modifier components may be blended in a single type or in combination of two or more. The content of the hair modifier component in the pre-treatment composition for hair dyeing is preferably 0.01 from the viewpoint of improving the cysteic acid production inhibitory effect in the hair dyeing treatment and improving the hair dyeing power and leveling property. -20% by mass, more preferably 0.05-10% by mass, still more preferably 0.1-5% by mass.

(Other components of pretreatment composition for hair dyeing)
Further, the hair dye pretreatment composition of the present invention may contain other optional components as long as the effects of the present invention are not impaired. For example, a component selected from polymer compounds such as an oil component, a surfactant, a cationic polymer, an anionic polymer, an amphoteric polymer, and a nonionic polymer can be blended.

  The oil component is preferably blended from the viewpoint of imparting moisture to the hair and improving the fingering property. Specific components include oils and fats, waxes, higher alcohols, hydrocarbons, higher fatty acids, Examples thereof include alkyl glyceryl ethers, esters different from the above hair modifier components, and silicones.

  Examples of oils and fats include olive oil, camellia oil, shea fat, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado oil , Macadamia nut oil, castor oil, coconut oil, and evening primrose oil. The blending of these fats and oils, for example, macadamia nut oil of about 0.5 to 5% by mass is particularly preferred in terms of the effect of inhibiting cysteic acid production.

  Examples of the waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin.

  Examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, and Lanolin alcohol is mentioned.

  Examples of the hydrocarbon include paraffin, olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, squalane, polybutene, polyethylene, microcrystalline wax, and petrolatum.

  Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, 12-hydroxystearic acid, oleic acid, and lanolin fatty acid.

  Examples of the alkyl glyceryl ether include batyl alcohol, chimyl alcohol, ceralkyl alcohol, and isostearyl glyceryl ether.

  Examples of the esters include diisopropyl adipate, isopropyl myristate, cetyl octoate, isononyl isononanoate, octyldodecyl myristate, isopropyl stearate, stearyl stearate, myristyl myristate, isotridecyl myristate, 2-ethyl palmitate Hexyl, octyldodecyl ricinoleate, fatty acid (C10-30) (cholesteryl / lanosteryl), cetyl lactate, lanolin acetate, ethylene glycol di-2-ethylhexanoate, pentaerythritol fatty acid ester, dipentaerythritol fatty acid ester, cetyl caprate , Glyceryl tricaprylate, diisostearyl malate, and dioctyl succinate.

  Examples of silicones include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, terminal hydroxyl group-modified dimethylpolysiloxane, and highly polymerized unmodified silicone having an average polymerization degree of 650 to 10,000. Alternatively, highly polymerized amino-modified silicone, polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone can be used. Examples of the polyether-modified silicone include PEG-12 dimethicone. Examples of the amino-modified silicone include (aminoethylaminopropyl methicone / dimethicone) copolymer, aminopropyl dimethicone, and amodimethicone.

  These oil components may be blended alone or in combination of two or more. Although content of the oil-based component in the pretreatment agent composition for hair dye is not limited, For example, if it is an emulsion, it can be made into about 0.5-10 mass%.

  The surfactant is suitably blended in order to maintain the stability of the composition as an emulsifier of the composition or a solubilizer of each component in the composition. Although content of surfactant in the pretreatment agent composition for hair dye is not limited, For example, it can be set as about 0.5-50 mass%. Surfactants include ionic surfactants and nonionic surfactants. Examples of the ionic surfactant include a cationic surfactant, an anionic surfactant, and an amphoteric surfactant. Examples of the anionic surfactant include alkyl ether sulfate, alkyl sulfate, alkenyl ether sulfate, alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether carboxylate , Α-sulfone fatty acid salts, N-acylamino acid type surfactants, phosphate mono- or diester type surfactants, and sulfosuccinic acid esters. Examples of the alkyl ether sulfate include sodium laureth sulfate. Examples of the N-acylamino acid type surfactant include sodium N-lauroyl-L-glutamate. Examples of the counter ion of the anionic group of these surfactants include sodium ion, potassium ion, and triethanolamine.

  Examples of the cationic surfactant include alkyltrimethylammonium salt, alkenyltrimethylammonium salt, dialkyldimethylammonium salt, dialkenyldimethylammonium salt, lanolin fatty acid aminopropylethyldimethylammonium, and alkyloylamidopropyldimethylamine. Examples of the alkyl trimethyl ammonium salt include stearyl trimethyl ammonium chloride. Examples of the dialkyldimethylammonium salt include distearyldimethylammonium chloride. Examples of the counter ion of the cationic group of these surfactants include chloride ion, bromide ion, iodide ion, alkyl sulfate ion, and saccharin.

  Examples of amphoteric surfactants include cocobetaine, lauramidopropyl betaine, cocamidopropyl betaine, sodium lauroamphoacetate, and sodium cocoamphoacetate.

  Examples of the nonionic surfactant include polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, polyoxyethylene sorbitan fatty acid ester, sucrose fatty acid ester, sorbitan fatty acid ester, alkyl saccharide surfactant, glycerin fatty acid ester, Examples include polyoxyethylene hydrogenated castor oil, fatty acid alkanolamide, and alkylamine oxide. Examples of the polyoxyalkylene alkyl ether include laureth, ceteth, steareth, and palace. Specific examples of these surfactants may be used alone or in combination of two or more.

  Cationic polymers, anionic polymers, amphoteric polymers, and nonionic polymers are generally known as polymer compounds. Although content of these high molecular compounds in the pretreatment agent composition for hair dye is not limited, For example, it can be set as about 0.1-3 mass%. Specific examples of these polymer compounds include the following.

  The cationic polymer contains an amino group or an ammonium group bonded to a polymer chain, or is water-soluble having at least dimethyldiallylammonium halide as a structural unit, such as a cationized cellulose derivative, a cationic starch, or a cationized guar gum. Derivatives, diallyl quaternary ammonium salt polymers, diallyl quaternary ammonium salt / acrylamide copolymers, quaternized polyvinylpyrrolidone derivatives, and the like.

  Commercially available products of cationized cellulose derivatives include “Leocard G” and “GP” from Lion Corporation, and polymers “JR-125”, “JR-400” and “JR-30M” from Union Carbide. , “LR-400”, “LR-30M”, and the like. Examples of other cationized cellulose derivatives include hydroxyethyl cellulose dimethyl diallylammonium chloride, and commercially available products include trade names “Cellcoat H-100” and “L-200” of National Starch and Chemical Co., Ltd. Examples of the cationized guar gum derivatives include, for example, trade names “Jaguar C-13S”, “-14S”, “-17”, “-210”, “-162”, “-162” of RHONE-POULENC®. CARE1000 "is commercially available. Examples of the diallyl quaternary ammonium salt polymer include commercially available product name “MARCOAT 100” manufactured by Ondeo Nalco. Examples of the cationic diallyl quaternary ammonium salt / acrylamide copolymer include commercially available product names “MARCOAT 2200” and “550” of Ondeo Nalco. As the quaternized polyvinyl pyrrolidone derivative, those having a molecular weight of 10,000 to 2,000,000 are preferable, and commercially available products are trade names “Guff Coat 734”, “755”, “755 N”, etc. Is mentioned.

  Other useful cationic polymers include methacrylic acid chloride polymers, specifically 2-methacryloyloxyethyl phosphorylcholine polymer, 2-methacryloyloxyethyl phosphorylcholine polymer, 2-methacryloyloxyethyl phosphorylcholine, Examples include butyl methacrylate copolymer, 2-methacryloyloxyethyl phosphorylcholine · 2-hydroxy-3-methacryloyloxypropyltrimethylammonium chloride copolymer, and chlorocholine methacrylate polymer. Commercially available products containing chloromethacrylic acid ester polymers include “Salcare SC95” and “SC96” manufactured by Ciba Specialty Chemicals, “Lipidure HM” and “PMB” manufactured by NOF Corporation. “Same C” and the like. These cationized polymers may be blended singly or in combination of two or more.

  Examples of the anionic polymer include acrylic acid / acrylic acid amide / ethyl acrylate copolymer, acrylic acid / acrylic acid amide / ethyl acrylate copolymer potassium salt solution, acrylic acid alkyl ester / methacrylic acid alkyl ester Acetone acrylamide / methacrylic acid copolymer liquid, acrylic acid / alkyl methacrylate copolymer, acrylic resin alkanolamine liquid, carboxyvinyl polymer, hydroxypropyl acrylate, butylaminoethyl methacrylate, octylamide acrylate copolymer, acetic acid Vinyl / crotonic acid copolymer, vinyl acetate / crotonic acid / vinyl neodecanoate copolymer, vinyl acetate / crotonic acid / vinyl propionate copolymer, methyl vinyl ether / maleic acid monobutyl ester copolymer, etc. It is below.

  As the amphoteric polymer, N-methacryloylethyl N, N-dimethylammonium α-N-methylcarboxybetaine / butyl methacrylate copolymer (commercial name “Yukaformer AM-75”; manufactured by Mitsubishi Chemical Corporation), hydroxy acrylate Propyl / butylaminoethyl methacrylate / acrylic acid octylamide copolymer (commercial name “Amphomer 28-4910”; manufactured by National Starch), dimethyldiallylammonium chloride / acrylic acid copolymer (commercial names “Mercoat 280”, “ 295 "; manufactured by Ondeo Nalco Co., Ltd.), terpolymers of dimethyldiallylammonium chloride, acrylamide, and acrylic acid (commercial names" Mercoat Plus 3330 "and" 3331 "; manufactured by Ondeo Nalco Co., Ltd.), acrylic acid and methyl acrylate・ Metallic chloride Amidopropyl trimethylammonium copolymer (trade name "Merquat 2001"; ONDEO Nalco Co.) and the like.

  Although the kind of nonionic polymer is not limited, For example, the thing of a natural system, a semisynthetic system, and a synthetic system is mentioned. Examples of natural nonionic polymers include cellulose, guar gum, agar, starch / hydrolyzed starch, and dextrin. Examples of the semisynthetic nonionic polymer include methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methylcellulose. Further, synthetic nonionic polymers include polyethyl acrylate, polyacrylic amide, polyethylene glycol, polypropylene glycol, polyoxyethylene (hereinafter referred to as POE) polyoxypropylene (hereinafter referred to as POP) copolymer, POE. -POP butyl ether, POE / POP hexylene glycol ether, POP butyl ether, polyvinyl pyrrolidone, POE monostearate, POE distearate and the like.

  In addition to the components described above, the components used in normal hair cosmetics can be appropriately blended in the pretreatment composition for hair dyeing of the present invention according to the purpose as long as the effects of the present invention are not impaired. Examples of such components include solvents, antidandruff agents, vitamin agents, antiseptics, anti-inflammatory agents, chelating agents, coloring agents such as dyes and pigments, viscosity modifiers such as carboxyvinyl polymer, xanthan gum, and clay minerals, PH adjusters such as citric acid, 2-amino-2-methyl-1-propanol, sodium hydroxide, hydrolyzed PPTs such as hydrolyzed keratin, hydrolyzed collagen, hydrolyzed wheat protein, glycine, alanine, glutamic acid, theanine Amino acids and derivatives thereof, vitamins such as vitamins A, B and C and derivatives thereof, sugar alcohols such as inositol and xylitol, reducing agents, oxidizing agents, extracts extracted from plants, animals and microorganisms, pearlization Agents, fragrances, dyes, ultraviolet absorbers, antioxidants, propellants and the like. Specific examples of these ingredients include cosmetic crystal raw material standards, cosmetic ingredient-specific combination ingredient standards, legal dye handbooks, Japan Cosmetic Industry Association ingredient name list, INCI dictionary (The International Cosmetic Ingredient Dictionary and Handbook), pharmaceuticals, and the like. Ingredients listed in Quasi-drug Raw Material Standard, Pharmaceutical Quaternary Raw Material Standard 2006, Japanese Pharmacopoeia, Pharmaceutical Additives Standard, Food Additives Standard, etc.

  The pH of the pre-treatment composition for hair dyeing of the present invention is adjusted to pH 3 to 10 by using one kind of pH adjusting agent or by using a pH buffering agent using an organic acid or inorganic acid having a buffering action and a salt thereof. Is preferably adjusted between pH 4.5 and 8.5. In particular, it is more preferable to adjust the pH between 6.0 and 8.0. Examples of the organic acid used as the pH buffer include citric acid, glycolic acid, succinic acid, tartaric acid, lactic acid, fumaric acid, malic acid, levulinic acid, and the like. Examples of inorganic acids include phosphoric acid, sulfuric acid, and the like. And nitric acid. Examples of these acid salts include alkali metal salts such as sodium salts and potassium salts, and alkanolamine salts such as ammonium salts and triethanolamine salts.

  The hair dye pretreatment composition of the present invention is in the form of liquid, water-in-oil emulsion, oil-in-water emulsion, composite emulsion, microemulsion, spray, gel, foam, granule, lotion, cream, etc. It is possible. Moreover, it can also be set as the preparation type at the time of mixing mixed at the time of use.

  The pre-treatment composition for hair dyeing of the present invention may be used after being applied to the hair before performing the hair dyeing operation, after washing with water or warm water, and the same composition adhering to the hair is washed away with water or warm water. You may use without. Alternatively, by applying the pretreatment composition for hair dyeing of the present invention to the hair and then heating it, the reactivity of the component to the hair surface and the penetration into the hair can be promoted. For heating, there is no problem even if it is left warming with a warming device (dryer, warmer, steamer, high-temperature hair-styling iron, warming lot, self-heating device, etc.), and the standing time is 1-30. Minutes are appropriate. In addition, when heating is performed using a high-temperature hair-styling iron, the contact time with the hair per part is suitably about 2 seconds to 1 minute.

[Dye pre-treatment method]
In the hair dyeing pretreatment method, pretreatment with any one of the pretreatment compositions for hair dyeing is performed before the hair dyeing treatment. By carrying out this hair dyeing pre-treatment method, the above-mentioned actions and effects with respect to the first invention are exhibited, the hair is modified and the leveling and hair coloring power in the hair dyeing treatment are improved. Sometimes damage to hair is reduced and repaired, and excellent leveling and hair dyeing power are ensured.

  Here, the type of “hair dyeing treatment” is not particularly limited, and includes various hair dyeing treatments with a so-called oxidation hair dye or acid hair dye without limitation.

  In carrying out such a pretreatment method, the pretreatment composition of the present invention may be used after being applied to the hair and washed away with water or warm water. The same composition adhering to the hair is washed away with water or warm water. You may use without. Alternatively, by applying the pretreatment composition of the present invention to the hair and heating it, the reactivity of the component to the hair surface and the penetration into the hair can be promoted.

Examples of the present invention will be described below. The technical scope of the present invention is not limited by the following examples.
[Examples 1-8 and Comparative Examples 1-4]
The hair dye pretreatment compositions (Examples 1 to 8 and Comparative Examples 1 to 4) having the compositions shown in Table 1 at the end were prepared by the following methods, and the hair dyeing power, leveling ability, and cysteic acid production inhibitory effect were prepared. A test was conducted to evaluate The test results are summarized in Table 1.

Numerical values shown in the component column of Table 1 indicate mass% (the same applies to Tables 2 and 3). Dioleyl maleate or maleic acid (ethyl) (octyl) compounded in Examples 1 to 8 and Comparative Examples 1 to 3 in Table 1 are each compounded to 3 × 10 ⁻³ mol / 100 g. .

In Table 1, the expression “pH adjuster (80% monoethanolamine or phosphoric acid)” indicates that the pH was adjusted to 7.0 with 80% monoethanolamine or phosphoric acid. “200” is hydroxyethyl cellulose dimethyldiallylammonium chloride manufactured by National Starch and Chemical Co., and “highly polymerized dimethylpolysiloxane” is the same in Table 2, but the silicone x manufactured by Momentive Performance Materials Co., Ltd. F49-B7082 was used.
<Preparation method>
1) In a 300 mL beaker, required amounts of components other than purified water, a pH adjuster, and silicones to a final production amount of 200 g were added and heated to 80 ° C. to dissolve uniformly.
2) A required amount of purified water was put into a 200 mL beaker, heated to 80 ° C., added to the mixture obtained in 1), and emulsified. Thereafter, the mixture was cooled with stirring.
3) After cooling to 40 ° C. or lower, a pH adjuster, silicones, and purified water were added to prepare a pretreatment composition for hair dyeing with a final production amount of 200 g.
<Evaluation of hair dyeing power>
After applying the hair dye preparation compositions of Examples 1 to 8 and Comparative Examples 1 to 4 in Table 1 to human white hair bundles and leaving them to stand at room temperature (25 ° C.) for 15 minutes, a commercially available An appropriate amount of hair color (Promaster N-8 / 7, manufactured by Hoyu Co., Ltd.) was applied to the hair, and then allowed to stand at room temperature for 30 minutes. Thereafter, the product was washed with a commercially available shampoo (manufactured by Hoyu Co., Ltd., Promaster Color Care), dried, and the degree of hair coloring was visually evaluated according to the following criteria.
(Evaluation criteria)
5: Very good hair dyeing power 4: Excellent hair dyeing power 3: Slightly good hair dyeing power 2: Inferior hair dyeing power 1: Very poor hair dyeing power Evaluation>
In order to evaluate the leveling property, a “hair bundle for leveling property evaluation” was prepared as follows.

  Perm treatment (made by Hoyu Co., Ltd., using It's Love Fit Me Wave 45), bleach treatment (made by Hoyu Co., Ltd., using Promaster LT), and perm treatment on the hair end side half of human white hair bundle After that, bleaching was performed on the entire hair bundle, and a hair bundle for evaluation was obtained after 2 weeks.

After applying the hair dye preparation composition of Examples 1 to 8 and Comparative Examples 1 to 4 in Table 1 to the hair bundle for leveling evaluation, and leaving it to stand at room temperature for 15 minutes, a commercially available hair color (Same as above) was applied to the hair in an appropriate amount and allowed to stand at room temperature for 30 minutes. Thereafter, it was washed with a commercially available shampoo (same as above) and dried. Using a spectrocolorimeter (manufactured by Konica Minolta, model number: CM508d), the value (L ^* a) in the L ^* a ^* b ^* color system (CIE1976) for the hair end side half and the root side half of each hair bundle ^* B ^* value) was measured, and the color difference ΔE between the hair end side half and the root side half was calculated by the following formula, and the leveling property was evaluated according to the following criteria.
ΔE = {(ΔL) ² + (Δa) ² + (Δb) ² } ^1/2
(Evaluation criteria)
5: ΔE is less than 4 4: ΔE is 4 or more and less than 6 3: ΔE is 6 or more and less than 8 2: ΔE is 8 or more and less than 10 1: ΔE is 10 or more <Evaluation of Cysteinic Acid Production Inhibitory Effect>
After applying the hair dye preparation compositions of Examples 1 to 8 and Comparative Examples 1 to 4 in Table 1 to human black hair bundles and leaving to stand at room temperature for 15 minutes, commercially available hair colors (same as above). ) Was applied to the hair in an appropriate amount and left at room temperature for 30 minutes. Thereafter, it was washed with a commercially available shampoo (same as above) and dried. At this time, after collecting and hydrolyzing the hair from the hair bundle before and after the hair color treatment, the amount (mol%) of cysteic acid in the hair is measured by an amino acid analyzer, and the hair in the hair color treatment is expressed by the following formula. The cysteic acid increase rate was calculated, and the cysteic acid production inhibitory effect was evaluated based on the following criteria. A lower cysteic acid increase rate (that is, a higher cysteic acid production inhibitory effect) indicates a higher hair damage prevention effect.
Increase rate of cysteic acid (%) = [(amount of cysteic acid before treatment (mol%)) / (amount of cysteic acid after treatment (mol%)) − 1] × 100
(Evaluation criteria)
5: The cysteic acid increase rate is less than 4% 4: The cysteic acid increase rate is 4% or more and less than 6% 3: The cysteic acid increase rate is 6% or more and less than 8% 2: The cysteic acid increase rate is 8% or more and less than 10% 1 : Increase rate of cysteic acid is 10% or more From the evaluation results shown in Table 1, the products of the examples of the present invention are uniformly adsorbed to the damaged part and the healthy part by treating the hair before hair dyeing, and the damaged part and the healthy part. Since it is possible to make the hydrophobicity with the part uniform, it is possible to improve the leveling property and the hair coloring power, and it can be confirmed that it is also excellent in suppressing the production of cysteic acid from the hair dye. It was.
[Example 9 (oil treatment)]
After using the oil treatment of the composition shown in Table 2 at the end prepared by mixing the above components by a conventional method as a pretreatment agent for hair dyeing, the result of hair dyeing treatment with a commercially available hair color (same as above), Excellent hair dyeing power (determination based on the above-mentioned evaluation criteria: 5), leveling property (determination based on the above-mentioned evaluation criteria: 5), no stickiness when finished, and the effect of inhibiting the production of cysteic acid by the hair dye (described above) Judgment based on the evaluation criteria: 4) was also good.
[Example 10 (transparent gel treatment)]
After using the transparent gel treatment shown in Table 3 at the end prepared by mixing the above-mentioned components by a conventional method as a pretreatment agent for hair dyeing, commercially available hair manicure (Hoyu Co., Ltd., Lumi-up Color Excel (Orange) As a result of the hair dyeing treatment in (Brown)), it is excellent in hair dyeing power (determination based on the above-mentioned evaluation criteria: 4) and leveling property (determination based on the above-mentioned evaluation criteria: 4), and also has a sticky feeling when finished. In addition, the effect of inhibiting the production of cysteic acid by the hair dye (judgment based on the above evaluation criteria: 5) was also good.
[Comparative Example 5 (when the composition of Example 1 is used as a post-treatment agent for hair dyeing)]
A commercially available hair color (same as above) was applied to a human black hair bundle and then allowed to stand at room temperature for 30 minutes. Then, it wash | cleaned with the commercially available shampoo (same as the above), apply | coated the pretreatment agent composition for hair dye of Example 1 of Table 1, and left to stand for 15 minutes at room temperature, Then, it rinsed and dried. At this time, when hair was collected from the hair bundle before and after the hair color treatment and evaluated according to the above-described <Evaluation of Cysteinic Acid Production Inhibitory Effect>, the cysteic acid increase rate was 8% or more and less than 10%. Judgment based on standard: 2 ”.

  With the pre-treatment composition for hair dyeing of the present invention, in addition to the hair modifying effect, leveling and hair dyeing power in hair dyeing treatment can be ensured.

Claims (3)

For hair dyeing, comprising one or more ester compounds of an unsaturated dicarboxylic acid having 4 to 6 carbon atoms and a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms Pretreatment agent composition. The ester compound is a diester compound, and one or both carboxyl groups of the unsaturated dicarboxylic acid form an ester bond with a linear or branched saturated or unsaturated alcohol having 12 to 24 carbon atoms. The pre-treatment composition for hair dyeing according to claim 1. 3. The unsaturated dicarboxylic acid, wherein the carbon atom constituting at least one carboxyl group is a single bond with the carbon atom constituting a carbon-carbon unsaturated bond. A pretreatment composition for hair dyeing as described in 1.