JP2015024988A - Composition for hair quality improvement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composition for hair quality improvement having good temporal stability, which can impart firmness/resilience feeling to hair, facilitate giving voluminous feeling in styling, and also impart excellent touch feeling and flexibility to hair.SOLUTION: A composition for quality improvement comprises (A) one or more kinds selected from the metal salt compound group consisting of zinc acetate, zinc gluconate, zinc chloride, zinc lactate and magnesium acetate and also comprises (B) one or more kinds selected from α-olefin oligomer, light liquid isoparaffin, liquid isoparaffin and squalane and (C) dimethylpolysiloxane.

Description

  The present invention relates to a hair quality improving composition that gives a firmness and firmness to the hair, makes it easy to give a volume to the hair when used during styling, and gives the hair an excellent feel and flexibility.

  There are persistent complaints about not being able to style your desired hairstyle. In general, since hair styling is often performed in a situation where it is difficult to spend time in the morning, the consumer expects to secure an auxiliary method that can be easily styled into a desired hairstyle in a short time. For those who have thin and supple hair, and those who have thinned or reduced the number of hair as they age, it is particularly difficult to style the desired hairstyle in a short time. Is desired. Since this problem has existed for a long time, many proposals have been made so far. In the early stages, various hair styling was applied to increase hair rigidity by attaching a film-forming substance to the surface of the hair, and to give hair a firmness and firmness, making it easier to style into a hair style with a sense of volume. The development of a film-forming resin was proposed and proposed. However, these hair-styling film-forming resins not only make the hair surface feel very bad and lose the flexibility of the hair, but also lose the film rigidity in high humidity conditions, and the set hairstyle is Problems such as collapse or the use of a comb to make styling easy to collapse cannot be solved.

  There are various new proposals for these. Examples of methods for improving the defects of the film-forming resin with the compound used in combination include, for example, a combination with a cation, a higher alcohol, a branched ester compound (Patent Document 1), a combination with a plant extract (Patent Document 2), and a plurality of cations. And a combination with a polymer (Patent Document 3), a cation, an amphoteric activator, and a long-chain fatty acid alcohol (Patent Document 4). Proposals for compounds that can replace film-forming resins include wheat protein hydrolyzate (Patent Document 5), eucalyptus extract (Patent Document 6), cation, silicone, long chain alcohol, hydrogenated jojoba oil (Patent Document) 7), a combination of cation, amino-modified silicone, and heavy liquid isoparaffin (Patent Document 8). Further, as a technique for modifying the hair itself by infiltrating the compound into the hair, a method using a substance having an oxidizing or reducing action (Patent Document 9) or a hair penetration accelerator (Patent Document 10). Technology focusing on the application method to hair such as those focusing on the composition such as ˜12), aerosol dosage form (Patent Document 13) and two-drug dosage form (Patent Document 14) have been proposed. However, it is not possible to solve the problem that the hair modification is insufficient or the touch is inevitably deteriorated by simply attaching it to the hair surface. On the other hand, the method of penetrating the improving agent into the hair cannot solve the problems such as insufficient penetration and poor persistence in the hair after penetration, and there are still satisfactory technologies. Not.

JP 2011-098927 A JP 2011-0377780 A JP 2012-232945 A JP 2012-232919 A JP 05-000921 A JP 2006-238635 A JP 2012-097047 A JP 2009-320871 A JP 2012-149028 A Japanese Patent Laid-Open No. 10-029917 JP 2001-072553 A JP 2010-172134 A JP 2002-128644 A JP 2013-40153 A

  The invention of the present application is a hair with good temporal stability that gives smoothness and stickiness to the hair after hair styling without giving a feeling of stickiness and stickiness to the hair even though it imparts excellent firmness and firmness to the hair. It is an object to provide a composition for improving quality.

  The inventors of the present application have found the optimum conditions because the evaluation method used at the time of development study is not valid as one of the reasons that the problem has not been solved yet even though development has been studied for a long time. Newly found that there is no. Specifically, in the analysis of the evaluation results on the elasticity and stiffness of the samples obtained in the past and application to the hair bundle, most of the measured values excluding the measured values of all samples or the measured values of some samples are used. Various processes were performed and analyzed. However, the inventors noticed that the analysis results obtained by this method are insufficiently correlated with the sensory evaluation of the firmness and firmness of the hair, and further, measured all the sample measurement values obtained above. Sort the values in order of numerical value, and if the number representing the degree of elasticity or stiffness is larger, for example, if there is a stronger elasticity or stiffness, analyze using the top 10% of the larger numbers. Thus, the present inventors have found that a sufficient correlation not obtained in the past can be obtained in the sensory evaluation of the obtained analysis results and the firmness and firmness of the hair. By developing this evaluation and analysis method, it becomes easy to objectively evaluate a large number of specimens, and as a result of repeated studies in view of such circumstances, (A) zinc gluconate, zinc chloride, zinc acetate, In the composition containing 1 or more types of compounds chosen from the metal salt compound group which consists of zinc lactate and magnesium acetate, the improvement effect of the firmness and firmness feeling of the outstanding hair is acquired, Furthermore, (A) Zinc gluconate One or more selected from the group consisting of metal salt compounds consisting of zinc chloride, zinc acetate, zinc lactate and magnesium acetate, (B) one or more selected from the group consisting of α-olefin oligomers, light liquid isoparaffin, liquid isoparaffin and squalane And (C) a composition containing dimethylpolysiloxane, it has been found that a better hair improvement effect can be obtained. This has led to the completion of the present invention.

That is, this invention provides the composition of the following items 1-6 especially.
Item 1.
(A) A composition for improving hair properties, comprising one or more selected from the group of metal salt compounds consisting of zinc acetate, zinc gluconate, zinc chloride, zinc lactate and magnesium acetate.
Item 2.
Furthermore, (B) and (C) shown below are contained, The composition for hair quality improvement of claim | item 1 characterized by the above-mentioned.
(B) at least one selected from the group consisting of an α-olefin oligomer having a degree of polymerization of 2 to 7, a hydrocarbon group consisting of isoparaffin and squalane having a degree of polymerization of 3 to 10 (C) dimethylpolysiloxane
Item 1 or Item 2 wherein the dimethylpolysiloxane comprises a highly polymerized dimethylpolysiloxane having a degree of polymerization of 700 to 9000 and a dimethylpolysiloxane oil having a kinematic viscosity at 25 ° C of 0.65 to 50 centistokes. 2. The hair quality improving composition according to item 1.
Item 4.
Item 4. The hair quality improving composition according to any one of Items 1 to 3, further comprising a quaternary ammonium salt type cationic surfactant.
Item 5.
Item 5. The hair quality improving composition according to any one of Items 1 to 4, wherein the composition is applied to hair in the form of a mist.
Item 6.
Item 6. The hair quality improving composition according to any one of Items 1 to 5, which is used during hair styling.

  The invention of the present application is a composition for improving hair quality that imparts excellent hair elasticity and firmness, particularly when used during styling, and even though it provides excellent hair elasticity and firmness. It is possible to provide a composition for improving hair quality which has no later feeling of stickiness and stickiness, gives smooth fingering and gloss, and has good temporal stability.

The evaluation result of the bending elasticity of the hair processed with various metal salt compounds or magnesium acetate is shown. The measurement result of the amount of residual zinc in the hair processed with various metal salt compounds is shown.

  The metal salt compounds used in the present invention are zinc acetate, zinc gluconate, zinc chloride and zinc lactate, and magnesium acetate. These metal salt compounds can be used alone or in admixture of two or more. Among these, zinc gluconate, zinc chloride, and zinc lactate are preferable because the effect of the present invention is high. The compounding amount of these metal salt compounds is 0.1 to 5% by mass, preferably 0.3 to 4% by mass, more preferably 0.5 to 3% by mass, based on the total amount of the hair-improving composition. Most preferably, 0.5-2 mass% can be mix | blended. In addition, since the liquefied gas (propellant) which disappears before adhering to the hair used for aerosol etc. has a high possibility of having a bad influence on the effect of this application, the composition for hair quality improvement of this application does not use liquefied gas. Applied to the hair. Therefore, the liquefied gas is not included in the composition for improving hair properties referred to in the present application.

The hydrocarbon used in the present invention is squalane, an α-olefin oligomer having a polymerization degree of 2 to 7, and isoparaffin having a polymerization degree of 3 to 10. It has been found that these hydrocarbons, when used alone or in combination of two or more thereof, together with the metal compound give the hair a firmness and firmness and can provide excellent effects of the present invention.
These hydrocarbons can be used not only alone but also in combination of two or more. As the isoparaffin having a polymerization degree of 3 to 10, for example, light liquid isoparaffin having a polymerization degree of 4 to 6 or liquid isoparaffin having a polymerization degree of 5 to 10 can be used. As a compounding quantity of the said hydrocarbon, 0.5-8 mass% can be mix | blended with respect to the whole composition for hair improvement, Preferably it is 1-6 mass%, Most preferably, 2-5 mass% is mix | blended. can do.

  The dimethylpolysiloxane used in the present invention is not particularly limited as long as it is dimethylpolysiloxane. Depending on the degree of polymerization, there are various physical properties ranging from low-viscosity liquids to solids, but any of them can be used. These dimethylpolysiloxanes can be used alone or in admixture of two or more. In particular, when a highly polymerized dimethylpolysiloxane having a degree of polymerization of about 700 to 9000 and a dimethylpolysiloxane oil having a kinematic viscosity at 25 ° C. of about 0.65 to 50 centistokes are used in combination, a higher effect of the present invention can be obtained. preferable. When a highly polymerized dimethylpolysiloxane (A) having a degree of polymerization of 700 to 9000 and a dimethylpolysiloxane oil (B) having a kinematic viscosity at 25 ° C. of 0.65 to 50 centistokes are used in combination, The mixing ratio (A: B) of A) and dimethylpolysiloxane oil (B) is preferably 8:92 to 40:60, more preferably 11:89 to 35:65, and 25:75 to 35: 65 is most preferred. Moreover, in dimethylpolysiloxane oil whose kinematic viscosity in 25 degreeC is 0.65-50 centistokes, 2-50 centistokes are preferable, 5-30 centistokes are more preferable, and 10-20 centistokes are the most preferable. As a compounding quantity of dimethylpolysiloxane, 0.1-15 mass% can be mix | blended with respect to the hair improvement composition whole quantity, but 0.5-10 mass% is preferable, and 1-7 mass% is preferable. More preferably, 4 to 7% by mass is most preferable.

  The hair quality improving composition of the present invention can be used without any particular limitation as long as it is a dosage form used in a hair composition. For example, not only liquid or liquid dosage forms such as aqueous solutions (water type), lotions, creams, but also gels, pastes, solid sticks, powders, granules and the like can be used. These can be used not only by directly applying to hair, but also by applying to hair after being dissolved or dispersed in water. In addition, it is possible to employ methods such as applying to dry hair and leaving as it is, applying to hair before and after shampooing and then removing, applying to hair after washing and leaving as it is. Among these, a dosage form and a coating method that can be applied to hair in a mist form without using a liquefied gas are particularly preferable.

  In addition to the above-mentioned compounds, the composition of the present invention can be blended with components that can be used in hair cosmetics as long as the effects of the present invention are not impaired. For example, surfactants, greasing agents, hair protecting agents, moisturizers, polymers, UV absorbers, metal sequestering agents, solvents, pH regulators, vitamins, antioxidants, antioxidant aids, antiseptics, Examples include fragrances.

  Examples of the surfactant include an anionic surfactant, a cationic surfactant, an amphoteric surfactant, a lipophilic nonionic surfactant, and a hydrophilic nonionic surfactant.

  Examples of the anionic surfactant include higher alkyl sulfates such as sodium lauryl sulfate and potassium lauryl sulfate, alkyl ether sulfates such as POE-lauryl sulfate triethanolamine, POE-sodium lauryl sulfate, and lauroyl sarcosine sodium. Higher fatty acid amide sulfonates such as N-acyl sarcosine acid, sodium N-myristoyl-N-methyl taurate, coconut oil fatty acid methyl tauride sodium, sodium lauryl methyl tauride, POE oleyl ether sodium phosphate, POE stearyl ether phosphoric acid Phosphate ester salts such as sodium di-2-ethylhexylsulfosuccinate, monolauroyl monoethanolamide sodium polyoxyethylenesulfosuccinate, lauryl poly Sulfosuccinates such as sodium propylene glycol sulfosuccinate, sodium lineardodecylbenzenesulfonate, lineardodecylbenzenesulfonate triethanolamine, alkylbenzenesulfonates such as dodecylbenzenesulfonate, monosodium N-lauroylglutamate, di-N-stearoylglutamate N-acylglutamate such as sodium, monosodium N-myristoyl-L-glutamate, higher fatty acid ester sulfate such as sodium glyceryl sulfate hardened coconut oil fatty acid, POE-alkyl ether carboxylic acid, POE-alkyl allyl ether carboxylate , Α-olefin sulfonate, higher fatty acid ester sulfonate, secondary alcohol sulfate, higher fatty acid alkylolamide sulfate Examples include ester salts, sodium lauroyl monoethanolamide succinate, ditriethanolamine N-palmitoyl aspartate, sodium caseinate and the like.

  Examples of the cationic surfactant include quaternary ammonium salt type cationic surfactants, poly (N, N′-dimethyl-3,5-methylenepiperidinium chloride), alkylisoquinolinium salts, dialkylmoris. Examples thereof include phonium salts, POE-alkylamines, alkylamine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, and benzethonium chloride. Among these, it is preferable to add a quaternary ammonium salt type cationic surfactant in terms of improving the flexibility and feel (particularly smoothness) of hair. Examples of quaternary ammonium salt type cationic surfactants include stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, stearyltrimethylammonium bromide, distearyldimethylammonium chloride, and laurylbenzyldimethylammonium chloride. Can be mentioned. Of these, hydrocarbons can be used alone or in admixture of two or more. Of these, stearyltrimethylammonium chloride, cetyltrimethylammonium chloride and behenyltrimethylammonium chloride are preferred, and stearyltrimethylammonium chloride and cetyltrimethylammonium chloride are most preferred. As a compounding quantity of a cationic surfactant, 0.01-1.5 mass% can be mix | blended with respect to the whole composition for hair improvement, Preferably it is 0.07-1.0 mass%, More preferably Can be blended in an amount of 0.1 to 0.7% by mass, most preferably 0.2 to 0.5% by mass.

  Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants such as 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium, 2-heptadecyl-N-carboxymethyl-N- Examples thereof include betaine surfactants such as hydroxyethyl imidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amide betaine, and sulfobetaine.

  Examples of the lipophilic nonionic surfactant include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan fatty acid esters such as sorbitan monostearate, glyceryl monoerucate, sesquiolein Examples include glycerin fatty acids such as acid glycerin and glyceryl monostearate, propylene glycol fatty acid esters such as propylene glycol monostearate, hydrogenated castor oil derivatives, and glycerin alkyl ether.

  Examples of the hydrophilic nonionic surfactant include POE sorbitans such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan fatty acid esters such as POE sorbitan monolaurate, POE sorbitol monolaurate, and POE sorbitol monooleate. Fatty acid esters, POE-glycerin monostearate, POE-glycerin monoisostearate, POE-glycerin fatty acid esters such as POE-glycerin triisostearate, POE-monooleate, POE-distearate, POE- such as POE-monodiolate Fatty acid esters, POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-alkyl ethers such as POE-behenyl ether, POE-octylph POE alkylphenyl ethers such as nyl ether, POE-nonylphenyl ether, POE-dinonylphenyl ether, pluronic types such as brulon, POE / POP cetyl ether, POE / POP-2-decyltetradecyl ether, POE / POP- POE / POP-alkyl ethers such as monobutyl ether, POE / POP-hydrogenated lanolin, tetra-POE / tetra-POP-ethylenediamine condensates such as Tetronic, POE-castor oil, POE-hardened castor oil, POE-hardened castor POE-castor oil hardened castor oil derivatives such as oil monoisostearate, POE-beeswax / lanolin derivatives such as POE-sorbit beeswax, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid iso Alkanolamides such Ropanoruamido, POE- propylene glycol fatty acid esters, POE- alkylamine, POE- fatty acid amides, sucrose fatty acid esters, POE- nonylphenyl formaldehyde condensate, such as alkyl ethoxy dimethylamine oxide.

  Examples of the greasing agent include fats and oils, waxes, hydrocarbons, higher fatty acids, higher alcohols, and synthetic ester oils.

  As fats and oils, avocado oil, camellia oil, almond oil, macadamia nut oil, corn oil, grape seed oil, medfoam oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, wheat germ oil, sasanqua oil, castor oil, safflower Oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, jojoba oil, germ oil, cocoa butter, palm oil, horse fat, hydrogenated palm oil, palm oil, beef tallow, sheep fat, hardened beef tallow, Examples include palm kernel oil, lard, tallow kernel oil, hydrogenated castor oil, and the like.

  The waxes include beeswax, candelilla wax, cotton wax, carnauba wax, moleberry, bayberry wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, reduced lanolin, jojoballow, hard lanolin, shellac wax And POE lanolin alcohol ether.

  Examples of the hydrocarbon include liquid paraffin, ozokerite, squalene, paraffin, ceresin, petrolatum, and microcrystalline wax.

  Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, undecylenic acid, tolic acid, isostearic acid, linoleic acid, linolenic acid, ethyl alcohol Examples include icosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

  Examples of higher alcohols include linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerol ether (batyl alcohol), 2-decyltetradecinol, and lanolin. Examples thereof include branched chain alcohols such as alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol.

  Synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, cetyl lactate, myristyl lactate Lanolin acetate, isocetyl stearate, isocetyl isostearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, di-2 -Glyceryl heptyl undecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, tetra-2 Pentaneerythritol ethylhexylate, glycerin tri-2-ethylhexylate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, glyceride tri-2-heptylundecanoate, castor oil Fatty acid methyl ester, oleic oil, cetostearyl alcohol, acetoglyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate , Ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, seba Phosphate diisopropyl, 2-ethylhexyl succinate, trioctanoate glycerin triisopalmitate glycerin, lanolin fatty acid isopropyl, hexyl laurate.

  Examples of the hair protecting agent include silicones other than dimethylpolysiloxane, such as chain polysiloxanes such as methylphenylpolysiloxane and methylhydrogenpolysiloxane, decamethylpolysiloxane, dodecamethylpolysiloxane, tetramethyltetrahydro Examples thereof include cyclic polysiloxanes such as genpolysiloxane and silicone resins.

  As the humectant, for example, polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, amylolytic sugar, maltose, xylitol, Sugar alcohols such as amylolytic sugar-reduced alcohol, amino acids, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, collagen derivatives, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, seawater (including dried solids), ocean Examples include deep water (including dried solids), chitosan derivatives, sodium pyrrolidonecarboxylate, diglycerin / ethylene oxide / propylene oxide adducts, and the like.

  Examples of the polymers include natural water-soluble polymers, semi-synthetic water-soluble polymers, synthetic water-soluble polymers, and inorganic water-based polymers.

  Examples of natural water-soluble polymers include arabia gum, tragacanth gum, galactan, guar gum, carob gum, caraya gum, carrageenan, pectin, agar, quince seed (malmello), alge colloid (gypsum extract), starch (rice, corn, potato, wheat) ), Etc., microbial polymers such as dextran, succinoglucan and pullulan, and animal polymers such as casein, albumin and gelatin.

  Examples of semi-synthetic water-soluble polymers include starch polymers such as carboxymethyl starch and methylhydroxypropyl starch, methylcellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, and carboxymethylcellulose sodium. (CMC), cellulose-based polymers such as crystalline cellulose and cellulose powder, and alginic acid-based polymers such as sodium alginate and propylene glycol alginate.

  Examples of the synthetic water-soluble polymer include vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, and carboxyvinyl polymer, and polyoxyethylene polymers such as polyethylene glycol 20,000, 40,000, and 60,000. Examples thereof include polymers, copolymer polymers such as polyoxyethylene polyoxypropylene copolymer, acrylic polymers such as sodium polyacrylate, polyethyl acrylate, and polyacrylamide, polyethyleneimine, and cationized polymers.

  Examples of the inorganic water-based polymer include bentonite, magnesium aluminum silicate (beegum), laponite, hectorite, and anhydrous silicic acid.

  Examples of the ultraviolet absorber include paraaminobenzoic acid, ethyl paraaminobenzoate, glyceryl paraaminobenzoate, amyl paradimethylaminobenzoate, octyl paradimethylaminobenzoate, 4- [N, N-di (2-hydroxypropyl) Amino] benzoic acid UV absorbers such as ethyl benzoate, anthranilic acid UV absorbers such as homomenthyl-N-acetylanthranylate, ethylene glycol salicylate, phenyl salicylate, octyl salicylate, benzyl salicylate, p-tert-butyl salicylate Salicylic acid UV absorbers such as phenyl and homomenthyl salicylate, benzyl cinnamate, 2-ethoxyethyl paramethoxycinnamate, octyl paramethoxycinnamate, glyceryl mono-2-ethylhexanoate diparamethoxycinnamate Cinnamic acid UV absorbers such as isopropyl paramethoxycinnamate and diisopropyl cinnamate ester, urocanic acid UV absorbers such as urocanic acid and ethyl urocanate, hydroxymethoxybenzophenone, hydroxymethoxybenzophenonesulfonic acid, sodium hydroxymethoxybenzophenonesulfonate Benzophenone ultraviolet absorbers such as dihydroxydimethoxybenzophenone, sodium dihydroxydimethoxybenzophenone disulfonate, dihydroxybenzophenone, tetrahydroxybenzophenone, 4-tert-butyl-4′-methoxy-dibenzoylmethane, 2,4,6-trianilino-p -(Carbo-2'-ethylhexyl-1'-oxy) -1,3,5-triazine, 2- (2-hydroxy-5- Butylphenyl) benzotriazole.

  Examples of the metal sequestering agent include alanine, ethylenediamine hydroxyethyl triacetate, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, tartaric acid, Examples include succinic acid, edetic acid, phytic acid and the like.

  Examples of the solvent include lower alcohols such as methanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol, ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, Divalent alcohol such as glycerin, trimethylolpropane, trivalent alcohol such as 1,2,6-hexanetriol, tetravalent alcohol such as pentaerythritol, pentavalent alcohol such as xylitol, hexavalent such as sorbitol, mannitol, etc. Alcohol, diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglyceride Polyhydric alcohol polymers such as polyglycerin, dihydric alcohol alkyl ethers such as ethylene glycol monomethyl ether, dihydric alcohol alkyl ethers such as diethylene glycol monomethyl ether and diethylene glycol monoethyl ether, ethylene glycol monomethyl ether acetate, etc. Examples thereof include glycerin monoalkyl ethers such as dihydric alcohol ether esters, xyl alcohol, ceralkyl alcohol, and batyl alcohol.

  Examples of the pH adjuster include citric acid, lactic acid, acetic acid, hydrochloric acid, potassium hydroxide, sodium hydroxide, sodium lactate, sodium citrate, sodium lactate and the like. These can be used alone or in combination, and can be used not only for adjusting the pH value but also for the purpose of buffering the adjusted pH value.

  Examples of vitamins include vitamins A, B1, B2, B6, E and derivatives thereof, pantothenic acid and derivatives thereof, and the like.

Examples of the antioxidant include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters and the like.
Examples of the preservative include organic acids such as benzoic acid, sodium benzoate, undecylenic acid, salicylic acid, sorbic acid, paraoxybenzoate, and derivatives thereof, phenols such as isopropylmethylphenol, phenoxyethanol, 1,2-hexanediol. 1,2-pentanediol and the like.

  Hereinafter, the present invention will be specifically described, but the present invention is not limited to the following examples. In the following, “%” means “mass%” unless otherwise specified.

Evaluation of hair bending elasticity of zinc compounds and magnesium acetate and residual hair amount of zinc The hair bending elasticity was evaluated from Japanese women who were over 50 years old and knew that the hair was not firm or firm. Hair was used, and the remaining evaluation was performed using formic acid treatment of virgin hair collected from the same person and having no chemical treatment history, thereby reducing the firmness and firmness of the hair.

(Hair bending elasticity)
The hair collected from a Japanese woman who was over 50 years old and knew that the hair was not firm and firm was collected at random from all the heads (5 samples per sample). The hair obtained at this point is hereinafter referred to as “untreated hair”. The obtained untreated hair was treated with each zinc compound and magnesium acetate according to the following method. Specifically, a 1% (wt / wt) aqueous solution of each compound was prepared, and about 50 ml was dispensed into a beaker. While maintaining the liquid temperature at 30 ° C., the five untreated hairs were immersed in each beaker and left for 60 minutes to treat the hair. Each hair was thoroughly washed with distilled water and then air-dried with a dryer. The obtained treated hair is hereinafter referred to as “various treated hairs”. Next, the flexural modulus of each untreated hair and each treated hair was measured. The measurement was performed using a single bending tester (KES-FB2-SH, manufactured by Kato Tech Co., Ltd.) under the conditions of 25 ° C. and 50 RH%. The measurement site was changed for each specimen and the measurement was performed 5 times, and a total of 25 measurement values were obtained. The obtained measurement values are arranged in descending order, and the average value of the first to third measurement values (three measurement values in total) is calculated, and the calculated value correlates with the evaluation of the sense of elasticity and stiffness of the hair. The flexural modulus value of “Bend elasticity of hair” is the ratio of change in the flexural modulus of hair obtained by the above method to “untreated” ([hair flexural modulus value of “various treated hair”] / [“untreated hair” The hair bending elastic modulus value]) was calculated. The results are shown in Table 1 and FIG.

  As shown in Table 1, in the water-soluble zinc compound, zinc L-pyrrolidonecarboxylate (hereinafter referred to as “PCA zinc”) and zinc phenolsulfonate are effective in reducing the firmness and firmness of the hair. Thus, it was found that zinc acetate, zinc gluconate, zinc chloride, zinc lactate and magnesium acetate enhance the firmness and firmness of the hair.

(Formic acid treatment of hair)
For the hair treated with zinc acetate, zinc chloride, zinc gluconate, zinc phenolsulfonate, zinc lactate, PCA zinc, and glycine zinc, the amount of zinc remaining in the hair was evaluated by the following method.
The hair used was a virgin hair (Chinese hair, approximately 30 cm in length; manufactured by Beaulux Co., Ltd.) with no chemical treatment history collected from the same person, washed with approximately 10% sodium lauryl sulfate aqueous solution, running water After rinsing, it was dried. The hair after drying was washed and dried after being immersed in a concentrated formic acid solution for 15 minutes for the purpose of reducing the firmness and firmness of the hair. The hair subjected to the above treatment is hereinafter referred to as “formic acid treatment” and used for various evaluations and the following treatments.
The “formic acid-treated” hair was further treated with each zinc compound according to the following method. Specifically, a 1% (wt / wt) aqueous solution of each compound was prepared, and about 200 ml was dispensed into a beaker. While maintaining the liquid temperature at 30 ° C., about 3 g of the hair was immersed in each beaker and left for 60 minutes to treat the hair. The treated hair was thoroughly rinsed in ion exchange water and then dried. The obtained treated hair is hereinafter referred to as “various treatments”.

(Residual amount of zinc hair)
About 5 cm of each hair intermediate part is cut out for each treated hair and formic acid treated and untreated hair treated with zinc chloride, zinc gluconate, zinc lactate, zinc acetate, phenol sulfonate zinc, PCA zinc and glycine zinc. The amount of zinc remaining in the interior (ng / hair g) was measured using an ICP mass spectrometer (manufactured by Agilent Technologies). The obtained results were expressed as relative values with the amount of zinc contained in the formic acid-treated hair as 100. The obtained results are shown in Table 2 and FIG.

  Table 2 shows that formic acid treatment that reduces the firmness and firmness of hair (bending elasticity of hair) halves the amount of zinc in the hair. On the other hand, it was found that the zinc content in hair treated with formic acid-treated hair with various zinc compound solutions varies greatly depending on the compound type. In addition, by comparing these results with the results of the flexural modulus values shown in Table 1, it can be inferred that the amount of zinc remaining in the hair and the firmness and firmness of the hair (bending elasticity of the hair) are not correlated. .

According to the formulations shown in Tables 3 and 4, hair quality improving compositions were prepared. Next, the prepared hair improvement composition was evaluated by the following method. The obtained evaluation results are shown in Tables 3 and 4.

Evaluation of feeling of use Using Chinese hair (manufactured by Beaulux), a hair bundle of about 4.5 g and a total length of about 25 cm is prepared, washed and rinsed with 10% SLS, and then lightly removed. The composition described in Table 1 or 2 is filled in a pump spray that discharges about 0.1 g of contents at one time (one push), and the application position is changed with respect to the hair bundle immediately after removing water. Then, the composition was uniformly applied by pushing three times. The applied hair bundle was immediately dried using a dryer (warm air).
Evaluation of the feeling of use was carried out by sensory evaluation by five specialist panels. Evaluation was performed on the following five items, and 0 to 3 points were assigned. An average value was calculated by summing the five evaluation points, and was ranked into four according to the following criteria.
Feeling firmness 3 Feeling firmness and firmness 2 Feeling firmness and firmness 1 Feeling slightly firmness and firmness 0 Do not feel firmness and firmness
Fingering and smoothness 3 Feeling the smooth fingering very much 2 Fingering is good 1 Fingering is slightly good 0 Fingering is bad
Sense of elasticity 3 Feeling elasticity without sensation 2 Feeling elasticity without sensation 1 Not feeling sensation 0 Feeling sensation (no feeling of elasticity at all)
Feeling sticky 3 Receiving a smooth feeling 2 Not feeling sticky 1 Feeling somewhat sticky 0 Feeling clearly sticky
Evaluation criteria ◎ Average evaluation score is 3.5 or more ○ Average evaluation score is 2.5 or more and less than 3.5 △ Average evaluation score is 1.5 or more and less than 2.5 × Average evaluation score is less than 1.5

Evaluation of Stability The compositions described in Tables 1 and 2 were filled into 100 ml glass bottles and allowed to stand at 55 ° C. for 1 month, and then the appearance at room temperature (25 ° C.) was visually evaluated according to the following criteria.

○ No separation allowed × Clear separation allowed
XX Immediately after preparation, it does not become uniform

Evaluation points Evaluation points were calculated in the examples. As the evaluation points, ◎ was 2 points and ○ was 1 point, and the total score was calculated.

Overall evaluation ◎ All items are rated as ◯ or ◎ and the total evaluation score is 8 to 9 points ○ All items are evaluated as ◯ or ◎ and the total evaluation score is 5 to 7 points × Any item has a rating other than ○ or ◎

  As shown in Tables 3 and 4, a composition containing either gluconate zinc, zinc chloride or zinc lactate, and a combination of a hydrocarbon group consisting of α-olefin oligomer, light liquid isoparaffin and squalane and dimethylpolysiloxane is used. It has been confirmed that it has good temporal stability and imparts firmness and firmness to the hair when applied to the hair.

  Hereinafter, although the formulation example of the composition for hair improvement of this invention is described in Table 5, this invention is not limited to the following formulation example. Further, unless otherwise specified, the amount is mass%. In the table, “methylpolysiloxane copolymer A” means “poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer”.

Claims (6)

  (A) A composition for improving hair properties, comprising one or more selected from the group of metal salt compounds consisting of zinc acetate, zinc gluconate, zinc chloride, zinc lactate and magnesium acetate. Furthermore, (B) and (C) shown below are contained, The composition for hair quality improvement of Claim 1 characterized by the above-mentioned.
(B) at least one selected from the group consisting of α-olefin oligomers having a degree of polymerization of 2 to 7, hydrocarbons consisting of isoparaffin and squalane having a degree of polymerization of 3 to 10 (C) dimethylpolysiloxane   The dimethylpolysiloxane contains a highly polymerized dimethylpolysiloxane having a degree of polymerization of 700 to 9000 and a dimethylpolysiloxane oil having a kinematic viscosity at 25 ° C of 0.65 to 50 centistokes. The hair improvement composition according to any one of the above.   Furthermore, a quaternary ammonium salt type cationic surfactant is contained, The composition for hair quality improvement of any one of Claims 1-3 characterized by the above-mentioned.   The hair-improving composition according to any one of claims 1 to 4, wherein the composition is applied to hair in the form of a mist.   It uses at the time of hair styling, The composition for hair quality improvement of any one of Claims 1-5 characterized by the above-mentioned.