Hair cosmetic composition

Abstract

To provide a hair cosmetic composition which enables acquisition of such an effect that frizzy hair can be repaired and deterioration in the strength of the hair itself can be suppressed and also enables the effects to last for a long time.SOLUTION: A hair cosmetic composition includes silicone oil (A), and a compound (B) having a carboxymethyl group. The component (B) can be carboxymethyl cysteine. The component (A) can be a compound represented by formula (1).SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair cosmetic composition, and more particularly to a hair cosmetic composition that suppresses heat damage to hair. [Background technology]

[0002] Hair is washed daily with water (warm water, etc.), and therefore requires drying each time. For example, a hair dryer is used for this purpose. A hair dryer can shorten the time required to dry hair by using hot air, but at the same time, it places a thermal load on the hair. Styling with a hair iron places a stronger thermal load on the hair. Generally, a hair dryer applies hot air of 100°C or less to the hair, while a hair iron applies heat of 120°C or more directly to the hair, which is known to cause greater thermal damage to the hair. When thermal damage is caused to the hair by such a thermal load, it causes the hair to feel dry and brittle, and the strength of the hair itself is reduced. The following Patent Documents 1 to 3 are known as techniques aimed at suppressing such heat damage to hair. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-051078 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-046632 [Patent Document 2] Japanese Patent Application Publication No. 2019-077651 Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 discloses a non-aqueous hair cosmetic composition containing (A) dimethiconol, (B) a block copolymer of poly(oxyethylene-oxypropylene)-alkylene-methylpolysiloxane, (C) a volatile silicone, and (D) a vegetable oil. It also discloses that this hair cosmetic composition has the effect of protecting hair from the heat of a straightening iron. Patent Document 2 discloses a heat protection agent for hair containing one or more selected from the group consisting of protein hydrolysates, protein hydrolysate derivatives, and polyamino acids. It has been shown that this heat protection agent can protect hair from heat, is particularly effective in suppressing lanthionine production due to heat, and can maintain healthy hair. Patent Document 3 discloses a hair cosmetic containing either allitol or talitol, or both, and shows that this hair cosmetic can inhibit deterioration of hair due to oxidation, heat damage, etc., and can maintain beautiful hair with luster and body.

[0005] As a result of this accumulation of technologies, various hair cosmetics that can suppress heat damage to hair have been launched on the market, and as a result, there has been a demand for more noticeable and noticeable effects. In this trend, there is a current situation in which repairing the dryness of hair, suppressing a decrease in the strength of the hair itself, and further, the persistence of these effects is required.

[0006] The present invention has been made in view of the above-mentioned circumstances, and aims to provide a hair cosmetic composition that can repair the dryness of hair, suppress a decrease in the strength of the hair itself, and further ensure that these effects are sustained. [Means for solving the problem]

[0007] That is, the present invention is as follows. [1] The hair cosmetic composition of the present invention comprises the following components: (A): Silicone oil (B): Compounds with a carboxymethyl group [2] In the hair cosmetic composition of the present invention, the (B) may be carboxymethylcysteine ​​or a salt thereof. [3] In the hair cosmetic composition of the present invention, the (A) may contain a compound represented by the following formula (1): [ka] [4] The hair cosmetic composition of the present invention may contain the (A) and the (B) in a mass ratio of (A) / (B)=0.02 to 120. [5] The hair cosmetic composition of the present invention may further contain the following components: (C): Vegetable oil [6] The hair cosmetic composition of the present invention can be applied to hair that is to be subjected to a heat treatment at 120°C or higher. [Effects of the Invention]

[0008] The hair cosmetic composition of the present invention can provide the effects of repairing dryness of hair caused by heat damage, suppressing the decrease in strength of the hair itself caused by heat damage, and improving the durability of these effects. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention will be described below. The matters set forth herein are for illustrative purposes and are intended to exemplify embodiments of the present invention, and are set forth in order to provide what is believed to be the most effective and easily understandable explanation of the principles and conceptual features of the present invention. In this respect, it is not intended to show structural details of the present invention beyond the extent necessary for a fundamental understanding of the present invention, but rather to clarify to those skilled in the art how some aspects of the present invention can be actually embodied through this description.

[0010] The hair cosmetic composition of the present invention (hereinafter also simply referred to as "the composition") contains a silicone oil as component (A) and a compound having a carboxymethyl group as component (B). By containing these two ingredients simultaneously, the present composition has the effect of repairing the dryness of hair caused by heat damage, the effect of suppressing the loss of strength of the hair itself caused by heat damage, and even the effect of improving the durability of the damage.

[0011] Although the mechanism is unclear, it can be explained as follows. That is, component (A) alone has the function of improving the ease of running one's fingers through hair, but component (A) alone does not have the function of repairing heat-damaged hair or improving its strength. On the other hand, component (B) can repair heat-damaged hair by penetrating the hair, but the effect of component (B) alone is not sufficient to be noticeable. Furthermore, even if component (B) penetrates the hair, it can easily be washed out of the hair by washing with water, making it difficult to accumulate repair effects on the hair. In contrast, when component (A) and component (B) coexist, component (A) does not inhibit component (B) from penetrating into the hair. It is believed that component (A) can effectively retain component (B) within the hair. Component (B) can repair hair by penetrating into the hair, but component (A)'s ability to lock it in within the hair is believed to enhance the sense of repair to the point where the perceived level changes. Furthermore, component (B) that has penetrated into the hair is retained within the hair by component (A), preventing component (B) from easily escaping from the hair even when washing with water. Furthermore, the coexistence of component (A) each time component (B) is added allows component (B) to repeatedly penetrate, resulting in cumulative repair, and thus accumulating and improving the repair effect of component (B). This is believed to result in a measurable improvement in hair strength.

[0012] The composition will be described in more detail below. [Component (A)] The silicone oil in component (A) has the effect of retaining component (B) that has penetrated into the hair within the hair, and also has the effect of improving the ease of running your fingers through the hair after drying. The silicone oil may be any component that has a polysiloxane skeleton consisting of repeating (—Si—O—) units and has fluidity, and there are no limitations on the type, viscosity, or degree of polymerization.

[0013] Silicone oil can be represented, for example, by the following formula (2). [ka]

[0014] In formula (2), R1 can be independently a methyl group, a hydroxy group, or a phenyl group, R2 can be a methyl group, a phenyl group, or an aminoalkyl group, and R3 can be a phenyl group or an aminoalkyl group. Furthermore, m can be an integer greater than or equal to 0, n can be greater than or equal to 1, and 1000≦m+n≦20000. Among the above, the number of carbon atoms in the aminoalkyl group is not limited, but can be, for example, 1 or more and 4 or less. Examples include an aminomethyl group, an aminoethyl group, and an aminopropyl group, and these may be used alone or in combination of two or more types.

[0015] In the above formula (2), an example of a silicone oil in which R1 is a methyl group and m=0 is dimethylsilicone oil (dimethicone). That is, this silicone oil is represented by the following formula (1). [ka] In formula (2), n may be an integer of 1 or greater and 1000≦n≦20000.

[0016] In the above formula (2), an example of a silicone oil in which R1 is a hydroxy group and m=0 is dimethylsilicone oil (dimethiconol) having a hydroxy terminal group. In the above formula (2), an example of a silicone oil in which R1 is a methyl group, R2 is a methyl group or a phenyl group, R3 is a phenyl group, and m≧1 is methylphenyl silicone oil. In the above formula (2), examples of silicone oils in which R1 is a methyl group, R2 is a methyl group or an aminoalkyl group, R3 is an aminoalkyl group, and m≧1 include amino-modified silicone oils.

[0017] Further, examples of silicone oils not included in the formula (2) include decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, polyether-modified silicone, highly polymerized silicone (for example, having an average degree of polymerization of 650 or more and 10,000 or less), betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone.

[0018] The silicone oil may be any of the silicone oils mentioned above, and may be used alone or in combination of two or more kinds, but in this composition, it is preferred to use the dimethyl silicone oil represented by the above formula (1).The use of dimethyl silicone oil can improve the feeling (repair feeling) and its durability compared to the use of other silicone oils.

[0019] When dimethyl silicone oil is used as component (A), its kinematic viscosity is not limited, but for example, 2 / s or more 500,000mm 2 / s or less, 1 mm 2 / s or more 300,000mm 2 / s or less, 5 mm 2 / s or more 150,000mm 2 / s or less, 5 mm 2 / s or more 50,000mm 2 The kinematic viscosity is measured at 25°C using an Ostwald viscometer in accordance with JIS Z8803:2011.

[0020] Although the content of component (A) is not limited, the lower limit can be set to 0.01% by mass, preferably 0.1% by mass, more preferably 0.5% by mass, and particularly preferably 2% by mass, based on 100% by mass of the entire composition, in order to prevent a decrease in the feel of the finished product. More specifically, the "finish" refers to the finish obtained after applying the hair cosmetic composition to heat-damaged hair, rinsing with water, and drying. Meanwhile, in order to prevent a decrease in handleability during use, the upper limit can be set to 20% by mass, preferably 10% by mass, and more preferably 5% by mass. Within these preferred ranges, the effects of repairing dryness of hair caused by heat damage, preventing a decrease in hair strength caused by heat damage, and improving the durability of the damage can be more significantly achieved.

[0021] [(B) Component] The compound having a carboxymethyl group, which is component (B), has the effect of improving the feel (repair feeling). Any compound may be used for this compound, but from the viewpoint of easy compatibility with hair, a compound having an amino acid skeleton (amino acid compound) is preferable. That is, an amino acid compound having a carboxymethyl group is preferable. Amino acid compounds include amino acids, their derivatives, complexes thereof, etc. Furthermore, complexes include amino acid salts, peptides (dipeptides, polypeptides, etc.), etc. Furthermore, these may be used alone or in combination of two or more types. Furthermore, the specific structure of the amino acid skeleton is not limited except that it has a carboxyl group and an amino group, but from the viewpoint of good penetration into hair, it is preferable that the molecule is small, for example, preferably having 20 or less carbon atoms (usually 2 or more). Furthermore, the number of carboxyl groups and the number of amino groups are not limited, and both may be the same number or different numbers, for example, each may independently be 1 to 4.

[0022] Furthermore, the amino acids constituting the amino acid skeleton are not limited, but are preferably amino acids constituting keratin from the viewpoint of ease of compatibility with hair, such as cysteine, serine, alanine, glycine, asparagine, aspartic acid, threonine, valine, proline, glutamine, methionine, hydroxyproline, glutamic acid, cystine, lysine, leucine, arginine, histidine, isoleucine, phenylalanine, tyrosine, tryptophan, etc. These may be used alone or in combination of two or more. In the present composition, among the above amino acids, sulfur-containing amino acids are preferably used, and among them, cysteine ​​(L-cysteine) is preferred. That is, an example of a compound having a carboxymethyl group as component (B) is carboxymethylcysteine.

[0023] The carboxyl group in carboxymethylcysteine ​​can be attached to the amino group (-NH2) and / or thiol group (-SH) of cysteine, but in this composition, a compound having a carboxyl group bonded to the thiol group of cysteine ​​is preferred. That is, component (B) is preferably S-(carboxymethyl)-L-cysteine ​​or a salt thereof.

[0024] Furthermore, when the compound having a carboxymethyl group, which is component (B), is carboxymethylcysteine, component (B) may form a salt. The component that forms a salt with carboxymethylcysteine ​​may be any component, whether an inorganic ion or an organic ion, but is preferably derived from an amino acid. Examples of such amino acids include the various amino acids described above. These may be used alone or in combination of two or more, with lysine being particularly preferred. In other words, when the component that forms a salt with carboxymethylcysteine ​​is lysine, component (B) can be said to be carboxymethylcysteine ​​lysine. More specifically, it is preferably an L-lysine salt of S-(carboxymethyl)-L-cysteine.

[0025] When the compound having a carboxymethyl group, which is component (B), is an amino acid (amino acid derivative) having a carboxylmethyl group, the amino acid constituting this compound may be bonded to one or more other amino acids via a peptide bond. Examples of other amino acids include the various amino acids mentioned above. These may be used alone or in combination of two or more.

[0026] Although the content of component (B) is not limited, the lower limit of the content of the composition (composed of the entire composition as 100% by mass) can be set to 0.01% by mass, preferably 0.1% by mass, and more preferably 0.5% by mass, in order to prevent a decrease in the feel-improving effect. On the other hand, the upper limit of the content can be set to 5% by mass, preferably 2.5% by mass, and more preferably 2% by mass, in order to prevent a decrease in handleability during use. Within these preferred ranges, the effects of repairing dryness of hair caused by heat damage, preventing a decrease in strength of the hair itself caused by heat damage, and improving the durability of the effect can be more significantly obtained.

[0027] Furthermore, the components (A) and (B) may be contained in any combination, but from the viewpoint of preventing a decrease in the durability of the repair feeling, the lower limit of the content of the component (A) relative to the content of the component (B) [(A) / (B)] can be 0.02, preferably 0.1, more preferably 0.5, and even more preferably 1. On the other hand, from the viewpoint of preventing a decrease in the feel-improving effect, the upper limit can be 200, preferably 150, more preferably 100, even more preferably 50, particularly preferably 20, even more particularly preferably 5, and especially preferably 2. Within these preferred ranges, the effects of repairing the dryness of hair caused by heat damage, preventing a decrease in the strength of the hair itself caused by heat damage, and improving the durability of the repair feeling can be more significantly obtained.

[0028] [(C) component] The vegetable oil (C) has the effect of further reinforcing the effect of component (A) in improving the durability of the repair feeling. In other words, the inclusion of component (C) can further improve the durability of the repair feeling against heat damage to hair. The vegetable oil may be any, but examples thereof include macadamia seed oil, meadowfoam oil, jojoba seed oil, rice germ oil, sunflower seed oil, olive oil, grape seed oil, almond oil, shea butter, rosehip oil, camellia oil, tea seed oil, camellia oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, cocoa butter, corn oil, peanut oil, rapeseed oil, rice bran oil, wheat germ oil, Job's tears oil, avocado oil, carrot oil, castor oil, linseed oil, and palm oil. These may be used alone or in combination of two or more. Among these, macadamia seed oil, meadowfoam oil, jojoba seed oil, rice germ oil, sunflower seed oil, olive oil, and grape seed oil are particularly preferred in the present composition from the viewpoint of improving the durability of the repair feeling.

[0029] Although the content of component (C) is not limited, the lower limit of the content of the composition (as a whole, taken as 100% by mass) can be set to 0.01% by mass, preferably 0.05% by mass, and more preferably 0.1% by mass, in order to prevent a decrease in the feel-improving effect. On the other hand, the upper limit of the content can be set to 5% by mass, preferably 2% by mass, and more preferably 1% by mass, in order to maintain handling performance during use. Within these preferred ranges, the effect of improving the durability of the repair feel can be more significantly achieved.

[0030] Furthermore, the (A), (B), and (C) components may be in any blend, but from the viewpoint of improving the durability of the repair feeling, the content of the (C) component relative to the total of the (A) and (B) components [(B) / ((A)+(C))] can have a lower limit of 0.0005, preferably 0.005, more preferably 0.01, and even more preferably 0.05. On the other hand, the upper limit can be 7, preferably 5, more preferably 3, even more preferably 1, and particularly preferably 0.8. Within these preferred ranges, the effect of improving the repair feeling and its durability can be more significantly achieved.

[0031] [Other ingredients] The present composition may contain other components in addition to the above components (A), (B), and (C), as necessary. Examples of other components include oily components other than the component (C), surfactants, solvents, polypeptides, preservatives, stabilizers, antioxidants, pH adjusters, plant extracts, etc. These may be used alone or in combination of two or more.

[0032] [Oily ingredients] Examples of oily components include higher alcohols, hydrocarbon oils, polymeric compounds, esters, fats and oils, waxes, higher fatty acids, fluorinated oils, etc. These may be used alone or in combination of two or more.

[0033] The higher alcohol is not limited as long as it has a carbon chain with 6 or more carbon atoms, and includes, for example, higher alcohols with 8 to 40 carbon atoms. The skeleton may be saturated or unsaturated, and may be linear or branched. Furthermore, the number of hydroxyl groups is not limited, and the alcohol may be monovalent or polyvalent. Specific examples include cetearyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, arachyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, lanolin alcohol, phytosterol, and cholesterol. These may be used alone or in combination of two or more. The purpose of adding the higher alcohol is not limited, but it can be used, for example, to adjust viscosity.

[0034] Examples of hydrocarbon oils include liquid paraffin, liquid isoparaffin, paraffin (paraffin wax), olefin oligomer, polyisobutene, hydrogenated polyisobutene, mineral oil, synthetic squalane, squalene, squalane (hydrogenated squalene), polybutene, polyethylene (polyethylene wax), microcrystalline wax, petrolatum, ozokerite, ceresin, limonene, turpentine, etc. These may be used alone or in combination of two or more.

[0035] Although no limitation is imposed on the polymer compound that can be used, in the present composition, cationic cellulose derivatives are particularly preferred, and other usable polymers include cationic starch, cationic guar gum, polymers or copolymers of diallyl quaternary ammonium salts, quaternized polyvinylpyrrolidone, etc. These may be used alone or in combination of two or more.

[0036] Examples of cationized cellulose derivatives include O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride (i.e., polyquaternium-10), O-[2-hydroxy-3-(lauryldimethylammonio)propyl]hydroxyethyl cellulose chloride, and hydroxyethyl cellulose dimethyl diallyl ammonium chloride (i.e., polyquaternium-4). Examples of the polymer or copolymer of a diallyl quaternary ammonium salt include a dimethyldiallylammonium chloride polymer (polydimethylmethylenepiperidinium chloride, i.e., Polyquaternium-6), a dimethyldiallylammonium chloride / acrylic acid copolymer (i.e., Polyquaternium-22), and an acrylic acid / diallyl quaternary ammonium salt / acrylamide copolymer (Polyquaternium-39). Examples of quaternized polyvinylpyrrolidone include a quaternary ammonium salt obtained from a copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate and diethyl sulfate (ie, polyquaternium-11). These may be used alone or in combination of two or more.

[0037] Other examples of polymer compounds include anionic polymers such as carboxyvinyl polymers, water-soluble polymers, etc. Examples of water-soluble polymers include plant-derived polymers such as gum arabic, xanthan gum, carrageenan, pectin, agar, starch, and algae colloid (brown algae extract), microbial polymers such as dextran and pullulan, starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch, cellulose-based polymers such as methylcellulose, ethylcellulose, nitrocellulose, and hydroxyethylcellulose, alginic acid-based polymers such as sodium alginate, and vinyl-based polymers such as carboxyvinyl polymers. These may be used alone or in combination of two or more.

[0038] The esters are not limited as long as they are compounds having a structure obtained by a dehydration reaction between a fatty acid and an alcohol. The present composition may contain an ester composed of a branched fatty acid and a branched alcohol and having 30 or less carbon atoms. Such an ester can suppress stickiness at the end of the finish. Specifically, examples of such an ester include isodecyl neopentanoate, isostearyl neopentanoate, 2-octyldodecyl neopentanoate, hexyldecyl neodecanoate, octyldodecyl neodecanoate, isostearyl isostearate, isopropyl isostearate, ethyl isostearate, octyldodecyl isostearate, hexyl isostearate, 2-hexyldecyl isostearate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, and 2-ethylhexyl isononanoate. Examples of esters include xyl, octyl isopalmitate, isostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, 2-hexyldecyl 2-ethylhexanoate, isostearyl 12-stearoyl stearate, isocetyl 12-stearoyl stearate, octyldodecyl 12-stearoyl stearate, ethylene glycol di-2-ethylhexanoate, and N-alkyl glycol monoisostearate. These may be used alone or in combination of two or more. The purpose of incorporating esters is not limited, but they can be used for purposes such as improving the manageability of hair at the end and smoothness during rinsing.

[0039] Furthermore, in the present composition, other esters that can be used include pentaerythrityl tetraethylhexanoate (pentaerythrityl tetraoctanoate), pentaerythrityl tetraisostearate, isopropyl myristate, isopropyl palmitate, diisopropyl adipate, diisobutyl adipate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, 2-octyldodecyl myristate, propylene glycol isostearate, glyceryl tri-2-ethylhexanoate, propylene glycol myristate-3 benzyl ether, propylene glycol monostearate, propylene glycol monolaurate, and polyglyceryl isostearate. These may be used alone or in combination of two or more.

[0040] The fat or oil may be a triester (triglyceride) of fatty acid and glycerin, and includes various fats and oils other than the vegetable oil, which is the aforementioned component (C). That is, various animal oils (animal fats and oils) are included, such as beef tallow, mink oil, egg yolk oil, etc. These may be used alone or in combination of two or more.

[0041] Examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, spermaceti, rice bran wax, sugarcane wax, palm wax, montan wax, cotton wax, bayberry wax, ivotaro wax, kapok wax, shellac wax, etc. These may be used alone or in combination of two or more.

[0042] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, lanolin fatty acid, etc. These may be used alone or in combination of two or more.

[0043] Although the content of the oily component is not limited, the lower limit can be set to 0.01% by mass, preferably 0.05% by mass, and more preferably 0.1% by mass, from the viewpoint of preventing a decrease in the feel-improving effect, when the entire composition is taken as 100% by mass, while the upper limit can be set to 5% by mass, preferably 2% by mass, and more preferably 1% by mass, from the viewpoint of maintaining handling performance during use.

[0044] [Surfactants] Examples of surfactants include cationic surfactants, nonionic surfactants, anionic surfactants, and amphoteric surfactants. These surfactants may be used alone or in combination of two or more. Among these, ionic surfactants are preferred, and cationic surfactants are more preferred. In the following, polyoxyethylene chains are represented as POE, polyoxypropylene chains as POP, the number in parentheses following them indicates the number of moles added, and the number in parentheses following alkyl indicates the number of carbon atoms in the fatty acid chain.

[0045] Examples of cationic surfactants include alkyl quaternary ammonium salts such as monoalkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, benzalkonium quaternary ammonium salts, and monoalkyl ether quaternary ammonium salts, amine salts such as alkylamine salts, fatty acid amidoamine salts, ester-containing tertiary amine salts, and arcobel tertiary amine salts, cyclic quaternary ammonium salts such as alkylpyridinium salts and alkylisoquinolium salts, and benzethonium chloride. These may be used alone or in combination of two or more.

[0046] Among these, alkyl quaternary ammonium salts are preferred, and more preferred are monoalkyl quaternary ammonium salts and / or dialkyl quaternary ammonium salts, and more preferred are monoalkyl quaternary ammonium salts.

[0047] Examples of monoalkyl quaternary ammonium salts include behenyltrimethylammonium chloride (behentrimonium chloride), lauryltrimethylammonium chloride, lauryltrimethylammonium bromide, alkyl(16,18)trimethylammonium chloride, cetyltrimethylammonium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium saccharin, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, stearyltrimethylammonium saccharin, alkyl(28)trimethylammonium chloride, diPOE(2)oleylmethylammonium chloride, diPOEstearylmethylammonium chloride, POE(1)POP(25)diethylmethylammonium chloride, POPmethyldiethylammonium chloride, methacryloyloxyethyltrimethylammonium chloride, behenyltrimethylammonium methylsulfate, etc. These may be used alone or in combination of two or more.

[0048] Examples of nonionic surfactants include POE alkyl ethers, POE alkyl phenyl ethers, POE·POP alkyl ethers, POE sorbitan fatty acid esters, POE monofatty acid esters, POE glycerin fatty acid esters, polyglycerin fatty acid esters, monoglycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, alkyl polyglucosides, etc. These may be used alone or in combination of two or more. Among these, POE alkyl ethers include POE lauryl ether, POE cetyl ether, POE stearyl ether, POE behenyl ether, POE lanolin, POE phytosterol, etc. These may be used alone or in combination of two or more.

[0049] Examples of anionic surfactants include alkyl ether sulfates, POE alkyl ether sulfates, alkyl sulfates, alkenyl ether sulfates, alkenyl sulfates, olefin sulfonates, alkanesulfonates, saturated or unsaturated fatty acid salts, alkyl or alkenyl ether carboxylates, α-sulfonic acid salts, N-acylamino acid surfactants, mono- or diester phosphate surfactants, and sulfosuccinate esters. These surfactants may be used alone or in combination of two or more. Examples of counter ions to the anionic groups of these surfactants include sodium ions, potassium ions, and triethanolamine. These surfactants may be used alone or in combination of two or more.

[0050] That is, for example, disodium lauryl sulfosuccinate, sodium lauryl sulfate, sodium myristyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, cetyl sulfate, sodium stearyl sulfate, sodium POE lauryl ether sulfate, triethanolamine POE lauryl ether sulfate, ammonium POE lauryl ether sulfate, sodium POE stearyl ether sulfate, disodium lauryl sulfosuccinate, sodium stearoylmethyl taurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, sodium lauryl phosphate, POE lauryl ether phosphate and its salts, N-lauroyl glutamates (such as sodium lauroyl glutamates), N-lauroylmethyl-β-alanine salts, N-acylglycine salts, N-acyl glutamates, higher fatty acids such as lauric acid and myristic acid, and salts of these higher fatty acids. These may be used alone or in combination of two or more.

[0051] Examples of amphoteric surfactants include amino acid-type amphoteric surfactants and betaine-type amphoteric surfactants. Among these, examples of amino acid-type amphoteric surfactants include N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium (sodium lauroamphoacetate), 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, undecylhydroxyethylimidazolinium betaine sodium, alkyldiaminoethylglycine hydrochloride, N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine sodium, N-coconut oil fatty acid acyl-N'-carboxyethoxyethyl-N'-caprylic acid and glycine-type amphoteric surfactants such as sodium laurylaminopropionate, sodium laurylaminodipropionate, and triethanolamine laurylaminopropionate. These may be used alone or in combination of two or more. Examples of betaine-type amphoteric surfactants include aminoacetic acid betaine-type amphoteric surfactants such as coconut oil alkyl betaine, lauryl dimethyl aminoacetic acid betaine, myristyl dimethyl aminoacetic acid betaine, stearyl dimethyl aminoacetic acid betaine, sodium stearyl dimethyl betaine, coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, and stearyl dihydroxyethyl betaine; sulfobetaine-type amphoteric surfactants such as lauryl hydroxysulfobetaine; and the like. These may be used alone or in combination of two or more.

[0052] Although the content of the surfactant is not limited, the lower limit can be 0.01% by mass, preferably 0.05% by mass, and more preferably 0.1% by mass, when the total amount of the composition is 100% by mass, while the upper limit can be 40% by mass, preferably 20% by mass, and more preferably 10% by mass.

[0053] [solvent] Examples of the solvent include water, lower alcohols, polyhydric alcohols, and lower alkyl ethers of polyhydric alcohols. Among these, examples of polyhydric alcohols include glycerin, propylene glycol, dipropylene glycol, 1,3-butylene glycol, ethylene glycol, diethylene glycol, polyethylene glycol (PEG), isoprene glycol, and sorbitol. Examples of lower alkyl ethers of polyhydric alcohols include mono- and di-lower alkyl ethers of the above-mentioned various polyhydric alcohols. Examples of lower alcohols include monohydric lower alcohols having 5 or less carbon atoms, such as ethanol, n-propanol, and isopropanol.

[0054] The content of the solvent is not limited and can be appropriately adjusted, but when the entire composition is taken as 100% by mass, for example, the lower limit can be 0.1% by mass, preferably 0.5% by mass, and more preferably 1% by mass, while the upper limit can be 95% by mass, preferably 90% by mass, and more preferably 85% by mass.

[0055] [Polypeptides] Examples of polypeptides include animal proteins, vegetable proteins, hydrolysates thereof (hydrolyzed proteins), cationized hydrolyzed proteins, etc. These may be used alone or in combination of two or more. Among these, animal proteins include keratin, collagen, silk, conchiolin, elastin, fibroin, casein, gelatin, etc. These may be used alone or in combination of two or more. Furthermore, vegetable proteins include vegetable proteins obtained from plants such as soybean, wheat, barley, oat, and almond (soybean protein, wheat protein, barley protein, oat protein, almond protein). Hydrolyzed proteins include components obtained by hydrolyzing the above-mentioned various proteins with an acid, alkali, enzyme, etc. Cationized hydrolyzed proteins include components obtained by cationizing hydrolyzed proteins with a denaturant, and components obtained by hydrolyzing previously denatured cationized proteins.

[0056] Among the above, examples of hydrolyzed proteins include hydrolyzed keratin, hydrolyzed collagen, hydrolyzed silk, hydrolyzed conchiolin, hydrolyzed soy protein, etc. These may be used alone or in combination of two or more. In addition, examples of cationized hydrolyzed proteins include N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed keratin, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed collagen, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed silk, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed conchiolin, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed keratin, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed collagen, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed silk, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed conchiolin, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride Examples of suitable hydrolyzed collagen include N-[2-hydroxy-3-(lauryldimethylammonio)propyl] hydrolyzed keratin, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] hydrolyzed collagen, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] hydrolyzed silk, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] hydrolyzed conchiolin, N-[2-hydroxy-3-(cocoalkyldimethylammonio)propyl] hydrolyzed soy protein, N-[2-hydroxy-3-(cocoalkyldimethylammonio)propyl] hydrolyzed collagen, N-[2-hydroxy-3-(cocoalkyldimethylammonio)propyl] hydrolyzed silk, N-[2-hydroxy-3-(cocoalkyldimethylammonio)propyl] hydrolyzed keratin, and N-[2-hydroxy-3-(cocoalkyldimethylammonio)propyl] hydrolyzed conchiolin. These may be used alone or in combination of two or more.

[0057] [Preservatives] Examples of preservatives include phenoxyethanol, methylparaben, ethylparaben, propylparaben, isopropylparaben, butylparaben, isobutylparaben, sodium benzoate, etc. These may be used alone or in combination of two or more.

[0058] [pH adjuster] Examples of pH adjusters include organic acids, inorganic acids, and salts thereof. Examples of organic acids include tartaric acid, citric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, pyrophosphoric acid, gluconic acid, levulinic acid, glycolic acid, glucuronic acid, benzoic acid, and pyrrolidonecarboxylic acid (PCA). Examples of inorganic acids include phosphoric acid (orthophosphoric acid, polyphosphoric acid, pyrophosphoric acid, metaphosphoric acid, and the like), hydrochloric acid, nitric acid, sulfuric acid, and boric acid. Examples of salts include sodium salts, potassium salts, and ammonium salts of the above organic and inorganic acids. These may be used alone or in combination of two or more.

[0059] [Plant extract] Plant extracts include avocado extract, hydrangea extract, aloe extract, apricot extract, apricot kernel extract, ginkgo extract, fennel extract, turmeric extract, Scutellaria root extract, Phellodendron bark extract, St. John's wort extract, orange extract, zelkova extract, chamomile extract, licorice extract, gardenia extract, kumazasa extract, grapefruit extract, mulberry extract, cowberry extract, burdock extract, bamboo extract, hawthorn extract, Japanese pepper extract, mallow extract, rehmannia root extract, perilla extract, linden extract, peony extract, ginger extract, and shiitake mushroom extract. Examples include birch extract, horsetail extract, sage extract, hawthorn extract, thyme extract, tea extract, clove extract, houttuynia cordata extract, hibiscus extract, hamamelis extract, parsley extract, loquat extract, loofah extract, safflower extract, peppermint extract, linden extract, hop extract, pine extract, horse chestnut extract, soapberry extract, eucalyptus extract, yuzu extract, coix seed extract, mugwort extract, lychee extract, lavender extract, apple extract, lemon extract, astragalus extract, rose extract, rosemary extract, Roman chamomile extract, etc. These may be used alone or in combination of two or more.

[0060] [Stabilizer] Examples of stabilizers include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, etc. These may be used alone or in combination of two or more.

[0061] [Antioxidants] Examples of antioxidants include ascorbic acid (L-ascorbic acid), anhydrous sodium sulfite, etc. These may be used alone or in combination of two or more. Examples of antioxidants include plant extracts, fragrances, herbal extracts, vitamins, ultraviolet absorbers, etc. These may be used alone or in combination of two or more.

[0062] In addition to the above, the composition may further contain sugars (sorbitol, maltose, glycosyltrehalose, N-acetylglucosamine, etc.), inorganic salts (sodium chloride, sodium carbonate, etc.), buffers (sodium phosphate, etc.), chelating agents (edetic acid and its salts, diethylenetriaminepentaacetic acid and its salts, hydroxyethanediphosphonic acid and its salts, etc.), vitamins, flavorings, colorants, ultraviolet absorbers, and at least one ingredient selected from those listed in the "Standards for Quasi-drug Raw Materials" (published June 2006, Yakuji Nipposha). These may be used alone or in combination of two or more.

[0063] [Form and use of hair cosmetic composition] The dosage form of the present composition is not limited and can be appropriately selected depending on the application and purpose, and can be, for example, a solid, liquid, aqueous solution, dispersion, emulsion, cream, paste, gel, foam, etc. Furthermore, when used in foam form, it may be used in an aerosol form or a non-aerosol form. Furthermore, when used in a non-aerosol form, it may be used in a pump foamer form or a squeeze foamer form. Furthermore, the present composition may be used as a single-component formulation, or may be used as a multi-component formulation divided into two or more components. In the case of a multi-component formulation, the components may be mixed before use, or may be used separately in sequence.

[0064] The use of the composition is not limited, and it can be used as a shampoo, hair rinse, hair conditioner, hair treatment, various pretreatment agents (pretreatment agents used before various treatments such as heat damage treatment, oxidative hair dyeing treatment, hair bleaching treatment, hair decoloring treatment, permanent wave treatment, etc.), various posttreatment agents (posttreatment agents used after various treatments such as heat damage treatment, oxidative hair dyeing treatment, hair bleaching treatment, hair decoloring treatment, permanent wave treatment, etc.), etc. Among these, it is preferably used as a posttreatment agent.

[0065] As described above, the present composition is particularly effective against heat damage, and therefore can be applied to hair before it is subjected to heat damage treatment, among the above-mentioned treatments, or can be applied daily and cumulatively. The above-mentioned heat damage treatments include drying with a hair dryer and styling with a hair iron. Among these, styling with a hair iron includes the use of straightening irons, curling irons, waving irons, curling irons, and waffle irons, as well as the use of irons and curling irons that are brought into contact with hair to perform heat treatment, even if they are called by other names. Furthermore, this includes not only the use of tools used in ordinary households with a set temperature of 120°C to 220°C, but also the use of tools used in beauty salons that can be set to a temperature of 200°C to 240°C, or even higher. In other words, the present composition is suitable for use on hair that is subjected to heat treatment at 120°C or higher.

[0066] The present composition may be applied to hair that is wet with water or warm water, or to dry hair. After application, the composition may be rinsed off, or may not be rinsed off. The method for applying the present composition to hair is not limited, and application by hand combing, spraying (atomizing), or application by a comb or brush may be used. [Example]

[0067] The present invention will be described in more detail below with reference to examples. However, these examples are merely examples shown for the convenience of explanation, and the present invention is not limited to these examples in any sense.

[0068] [1] Preparation of hair cosmetic composition The hair cosmetic compositions of Examples 1-11 and Comparative Examples 1-6 were prepared by mixing the components shown below in the mass ratios shown in Tables 1-3. The preparation methods were as follows.

[0069] (1) Preparation method Of these, the hair cosmetic compositions of Examples 1-10 and Comparative Examples 1-6 are all one-part hair cosmetic compositions containing all ingredients together, and were prepared by the following procedure. Specifically, all ingredients except phenoxyethanol, hydrolyzed keratin, and chamomile extract were placed in a container, dissolved and emulsified at 80°C, and cooled to 40°C to obtain an emulsion. Phenoxyethanol, hydrolyzed keratin, and chamomile extract were then added to the resulting emulsion, and purified water was added to make a total of 100%. An "ET-SA Type Emulsion Tester" (manufactured by Nikko Chemicals Co., Ltd.) was used as the mixer. On the other hand, Example 11 is a hair cosmetic composition for use (a treatment that is mixed immediately before use and applied to hair), in which component (A) and component (B) are contained in two separate cups, and the contents of these cups are mixed at the time of use.

[0070] (2) Ingredient details The components shown in Table 1-3 are as follows: (A) Silicone oil (low viscosity): Dimethylpolysiloxane (unmodified), manufactured by Shin-Etsu Chemical Co., Ltd., product name "Shin-Etsu Silicone KF-96A-10cs", kinematic viscosity 10 mm 2 / s(25℃) (A) Silicone oil (high viscosity): Dimethylpolysiloxane (unmodified), manufactured by Shin-Etsu Chemical Co., Ltd., product name "Shin-Etsu Silicone KF-96H-10,000cs", kinematic viscosity 10,000mm 2 / s(25℃) (A) Modified silicone oil: Aminoethylaminopropyl dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name "Shin-Etsu Silicone X-22-9435" (B) Carboxymethyl cysteine ​​lysine: manufactured by Synerga, product name "Hair APP" (C) Macadamia seed oil: refined macadamia oil Liquid paraffin: Sonneborn, product name "Carnation" Cationic cellulose derivative: O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride, manufactured by Akzo Nobel Co., Ltd., product name: "Cellcoat SC-230M" Cysteine: Reagent Lysine: Reagent Behentrimonium chloride 80%: cationic surfactant, behentrimonium chloride: isopropanol: water = 80% by mass: 18% by mass: 2% by mass mixture Isodecyl neopentanoate ester, manufactured by Kokyu Alcohol Kogyo Co., Ltd., product name "Neolite 100P"

[0071] [2] Evaluation of hair cosmetic compositions (1) Evaluation of texture (repair effect on dryness) The feel was evaluated according to the following procedure. The dry hair bundle for evaluation was pressed five times for one minute using a hair iron at 200°C. Then, 15 g of each of the hair cosmetic compositions of Examples 1-11 and Comparative Examples 1-6 was evenly applied to the hair bundle for evaluation using a brush, and after five minutes, the hair bundle was rinsed with water. The excess water was then absorbed with a towel, and the hair bundle was dried using a hair dryer to obtain a hair bundle for texture evaluation. The feel of the resulting hair bundle for feel evaluation was evaluated by five expert panelists. Specifically, each panelist selected the score that most closely matched their own evaluation from the following five-point scale. "5": Very good "4": Fairly good "3": Neither "2": Somewhat bad "1": Very bad The average score for each test example was then calculated by taking the arithmetic mean of the scores selected by the five panelists (rounding to the nearest tenth if necessary). The average scores were then applied to the following criteria to select a corresponding five-level score, which is shown in the "Feel" column of Table 1-3. "5": Average score above 4.5 "4": Average score is above 3.5 and below 4.5 "3": Average score is above 2.5 and below 3.5 "2": Average score is above 1.5 and below 2.5 "1": Average score is 1.5 or less

[0072] (2) Sustainability assessment The durability of the feel (repair effect on dryness) was evaluated according to the following procedure. The hair bundle for evaluation of feel evaluated in (1) above was washed with a 5% sodium lauryl sulfate aqueous solution. Next, excess water was absorbed by a towel, and then the hair bundle was heated and dried. This process from washing to drying was repeated three times to obtain a hair bundle for evaluation of durability. The feel of the resulting hair bundles for durability evaluation was evaluated by five expert panelists. This evaluation was carried out in the same manner as in (1) Feel Evaluation above, and the corresponding value was selected from five levels and shown in the "Durability" column in Table 1-3.

[0073] (3) Evaluation of the strength of the hair itself The strength of the hair itself was measured as follows. (3-1) Hair treated with a hair cosmetic composition The procedure for preparing hair bundles for texture evaluation performed in (1) above was repeated a total of five times every other day (i.e., the effects of the hair cosmetic composition were accumulated) to obtain hair bundles for evaluating the strength of the hair itself. 20 sample hairs were randomly taken out of the obtained hair bundles for evaluating the strength of the hair itself, and the breaking stress per cross-sectional area (N / mm ) of each sample hair was measured. 2) was measured by an underwater tensile test (measured while the sample hair was immersed in water), and the average value was calculated from the measured values ​​of 20 pieces. The tensile / compression tester used was an "SV-201N" model manufactured by Imada Seisakusho Co., Ltd., and the measurement conditions were a sample length of 20 mm and a tensile speed of 20 mm / sec. The cross-sectional area of ​​each sample hair was calculated as (average diameter of hair / 2) x 2 x π (unit: μm 2 ) was used.

[0074] (3-2) Hair treated with a hair cosmetic composition Twenty sample hairs were randomly taken from the same evaluation hair bundle (hair bundle to which no hair cosmetic composition had been applied) as used in (1) above, and the breaking stress per cross-sectional area of ​​each sample hair was measured using the underwater tensile test as described above, and the average value was calculated from the measured values ​​obtained for the 20 hairs.

[0075] (3-3) Evaluation method The average breaking stress obtained in (3-2) above was taken as 100%, and the increase rate of the average breaking stress for each example and comparative example obtained in (3-1) above was calculated. The increase rate was then applied to the following criteria, and the corresponding value was selected from five levels, which are shown in the column "Strength of hair itself" in Table 1-3. "5": Increase rate exceeds 15% "4": The increase rate is more than 10% and less than 15% "3": The increase rate is more than 5% and less than 10% "2": The increase rate is greater than 0% and less than 5% "1": The increase rate is 0% or less (did not increase)

[0076] [Table 1]

[0077] [Table 2]

[0078] [Table 3]

[0079] (4) Effects of the Example As shown in Tables 1-3, as shown in Comparative Example 1, a composition containing component (A) but not component (B) only received a rating of 2 in the three evaluation items of feel, durability, and tensile strength. On the other hand, as shown in Comparative Example 2, a composition containing component (B) but not component (A) received a rating of 3 in the two evaluation items of feel and tensile strength, which is higher than those of Comparative Examples 1, 3, and 4, but it is clear that sufficient performance was not obtained. In contrast, in all of Examples 1 to 11, the three evaluation items of feel, durability, and tensile strength were rated at 4 or higher, demonstrating a dramatic improvement in the evaluations compared to the comparative examples. Furthermore, the results of Comparative Examples 3 and 4 show that cysteine ​​and lysine cannot be used as substitutes for component (B).Similarly, the results of Comparative Examples 5 and 6 show that oily components other than component (A) cannot be used as substitutes for component (A).

[0080] Furthermore, Table 3 shows that Examples 5 and 7, which have an A / B ratio of 20 to 150, provide significantly better results than the comparative examples, but that even greater effects are obtained in the smaller A / B ratio range. Furthermore, it can be seen that, among these, Examples 1 to 4, 9, and 10 exhibit extremely excellent heat damage repair performance compared to Examples 6 and 8, which have an A / B ratio of 0.002 to 0.05. Furthermore, a comparison of Examples 1, 9, and 10 reveals that component (A) provides a more excellent effect with unmodified dimethyl silicone oil than with modified silicone oil, and that the inclusion of component (C) provides even better effects. Furthermore, the results in Table 1 show that, regardless of the method of use, excellent effects can be achieved as long as the ingredient composition is the same.

Claims

1. It contains the following components (A), (B), and (C), A hair cosmetic composition characterized in that, when the entire hair cosmetic composition is taken as 100% by mass, the content of component (A) is 0.1% by mass or more, and the content of component (B) is 0.01 to 2% by mass. (A): Silicone oil (B): Carboxymethylcysteine ​​lysine (C): At least one vegetable oil selected from macadamia seed oil, meadowfoam oil, jojoba seed oil, rice germ oil, sunflower seed oil, olive oil, and grape seed oil

2. It contains the following components (A), (B), and (C), A hair cosmetic composition characterized in that, when the entire hair cosmetic composition is taken as 100% by mass, the content of component (A) is 0.1 to 20% by mass, the content of component (B) is 0.01 to 1% by mass, and the ratio of the content of component (A) to the content of component (B) [(A) / (B)]] is 0.1 or more. (A): Silicone oil (B): Carboxymethylcysteine ​​lysine (C): Vegetable oil

3. The hair cosmetic composition according to claim 1 or 2, wherein (A) comprises a compound represented by the following formula (1): 【Chemistry 1】

4. 2. The hair cosmetic composition according to claim 1, wherein the (A) and the (B) are contained in a mass ratio of (A) / (B) of 0.02 to 120.

5. 5. The hair cosmetic composition according to claim 1, which is applied to hair after it has been subjected to a heat treatment of 120°C or higher.

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