Hair cosmetic composition

Abstract

To obtain a composition for a hair cosmetic capable of restoring hair and maintaining the restored state even by washing, brushing, etc., after restoration.SOLUTION: A hair cosmetic composition comprising a terpenoid compound selected from the group consisting of a monoterpenoid, a sesquiterpenoid, a diterpenoid, a sesterterpenoid and a triterpenoid, a polyphenol and a cationic polymer, wherein the content of the terpenoid compound is from 0.00001 to 5.0 mass%, the content of the polyphenol is from 0.00001 to 5.0 mass%, and the content of the cationic polymer is from 0.01 to 5.0 mass%.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair cosmetic composition. More specifically, the present invention relates to a hair cosmetic composition that can repair hair and maintain the repaired state even after washing and brushing. [Background technology]

[0002] In daily life, hair is damaged by various factors, such as photochemical damage caused by ultraviolet rays, and tactile and visual damage caused by heat drying using a hair dryer.

[0003] Furthermore, hair is also damaged by chemical treatments such as oxidizing agents, reducing agents, and alkaline agents used in perming and bleaching.

[0004] This damage to hair leads to breakage of the hair cuticle, which in turn causes the loss of hair constituents and moisture, leading to hair splitting and further to hair breakage and breakage.

[0005] Therefore, hair cosmetics such as hair treatments, hair conditioners, and hair rinses have been proposed to repair damaged hair.

[0006] Specifically, Patent Document 1 describes a hair cosmetic composition intended for hair damaged by permanent treatment, bleaching, or the like, and discloses that this hair cosmetic composition contains a cationized protein derivative and a neutral amino acid. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 10-175824 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the hair cosmetic composition of Patent Document 1 is unable to sufficiently repair hair damage and there is still room for improvement. In addition, there is a problem in that the repair effect is easily lost by washing or brushing the hair after repair (i.e., the hair easily returns to its pre-repair state), and the repair effect does not last for a long period of time.

[0009] The present invention has been made in consideration of the problems associated with the prior art, and an object of the present invention is to provide a hair cosmetic composition that can repair hair (i.e., hair that has been damaged (e.g., split ends or broken hair) that is difficult to repair due to hot drying or chemical treatment associated with shampooing) and can maintain the repaired state even after washing and brushing. [Means for solving the problem]

[0010] According to the present invention, the following hair cosmetic composition is provided.

[0011] [1] A terpenoid compound selected from the group consisting of monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, and triterpenoids; Polyphenols and a cationic polymer; Contains The content of the terpenoid compound is 0.00001 to 5.0% by mass, The content of the polyphenols is 0.00001 to 5.0% by mass, The hair cosmetic composition contains the cationic polymer in an amount of 0.01 to 5.0% by mass.

[0012] [2] The hair cosmetic composition according to [1], wherein the polyphenol is a polyphenol having a 3,4-dihydroxyphenyl group or a polyphenol having a 3,4,5-trihydroxyphenyl group.

[0013] [3] The hair cosmetic composition according to [1] or [2], further comprising a solubilizer selected from the group consisting of nonionic surfactants and polyethylene glycols.

[0014] [4] The hair cosmetic composition according to [3], wherein the terpenoid compound has a carboxy group in the molecule.

[0015] [5] The hair cosmetic composition according to [3], wherein the solubilizer is selected from the group consisting of nonionic surfactants and polyethylene glycols having an HLB value of 20 or less.

[0016] [6] The hair cosmetic composition according to [1] or [2], wherein the cationic polymer comprises at least one polymer selected from the following (a) to (d): (a) a cationic (meth)acrylate having a structural unit represented by the following general formula (1):

[0017] [ka] (In the general formula (1), X represents an oxygen atom, an NH group, or —O(CH) m PO4- group (m is an integer of 1 to 3), n is an integer of 2 or 3, R 1 represents a hydrogen atom or a methyl group, and R 2 indicates a methyl or ethyl group, and R 3 represents a carboxylate methyl group, and Y represents a chlorine atom or methosulfate. (b) A homopolymer having a structural unit represented by the following general formula (2) to the following general formula (3) derived from an N-vinyl monomer, which is a cationic monomer containing a nitrogen-containing heterocycle containing a quaternary ammonium group, or a copolymer having at least one of the structural units represented by the following general formula (2) to the following general formula (3) derived from the N-vinyl monomer and a structural unit derived from a hydrophilic monomer:

[0018] [ka] (In the general formula (2), Y represents a chlorine atom or CH3OSO3.)

[0019] [ka] (In the general formula (3), Y represents a chlorine atom or CH3OSO3.)

[0020] (c) A homopolymer of a diallyldimethylpyrrolidinium salt, or a copolymer of a diallyldimethylpyrrolidinium salt and at least one of a hydrophilic (meth)acrylate and a (meth)acrylamide.

[0021] (d) Cationic polysaccharides

[0022] [7] The hair cosmetic composition according to [1] or [2], wherein the cationic polymer has a main chain containing a carbon atom and a side chain bonded to the carbon atom and having a cationic nitrogen atom, and between the carbon atom and the cationic nitrogen atom there is present an intervening atom which is at least one atom selected from the group consisting of carbon atom, nitrogen atom, oxygen atom, and phosphorus atom, and the number of the intervening atoms is 2 to 15.

[0023] [8] The hair cosmetic composition according to [3], wherein the ratio of the amount of polyphenol to the amount of nonionic surfactant (amount of polyphenol / amount of nonionic surfactant) is 1.0 or less.

[0024] [9] The hair cosmetic composition according to the above [1] or [2], further comprising 0.1 to 99% by mass of an oily agent.

[0025]

[10] The hair cosmetic composition according to [9], wherein the oil comprises at least one oil having a mass average molecular weight of 1,000 or less.

[0026]

[11] The hair cosmetic composition according to [1] or [2], wherein the terpenoid compound is contained in a plant extract. [Effects of the Invention]

[0027] The hair cosmetic composition of the present invention has the effect of restoring hair and maintaining the restored state even after washing and brushing. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a photograph showing the degree of splitting of damaged hair before and after treatment with the hair cosmetic composition of the present invention. [Figure 2] Photographs showing the surface condition of damaged hair before and after treatment with the hair cosmetic composition of the present invention. [Figure 3] FIG. 2 is an explanatory diagram illustrating how to count the number of atoms between the carbon atom and the cationic nitrogen atom in the main chain of a cationic polymer. [Figure 4] FIG. 2 is an explanatory diagram illustrating how to count the number of atoms between the carbon atom and the cationic nitrogen atom in the main chain of a cationic polymer. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following describes embodiments of the present invention, but it should be understood that the present invention is not limited to the following embodiments, and that appropriate modifications and improvements to the following embodiments based on the ordinary knowledge of those skilled in the art, as long as they do not deviate from the spirit of the present invention, also fall within the scope of the present invention.

[0030] (1) Hair cosmetic composition: The hair cosmetic composition of the present invention contains a terpenoid compound selected from the group consisting of monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, and triterpenoids, a polyphenol, and a cationic polymer, in which the content of the terpenoid compound is 0.00001 to 5.0 mass%, the content of the polyphenol is 0.00001 to 5.0 mass%, and the content of the cationic polymer is 0.01 to 5.0 mass%.

[0031] Such a hair cosmetic composition can repair hair (i.e., exhibit a hair repair effect) and maintain the repaired state even after washing and brushing.

[0032] More specifically, the hair cosmetic composition of the present invention can repair hair (damaged hair) that has developed cracks or breaks (hereinafter simply referred to as "cracks") such as curls on the hair surface (i.e., cuticle damage) and split ends. Furthermore, after repair, the hair has durability against washing (i.e., hair washing) (washing resistance) and physical durability against brushing, etc. (brushing resistance), and can maintain the repaired state. Thus, the hair cosmetic composition of the present invention can restore not only minor cracks such as curls on the hair surface, but also cracks in the hair itself, such as split ends, to a state where the cracks are not present (restored to its original state), and furthermore, has resistance to washing, brushing, etc., and can maintain the repaired state.

[0033] In this specification, "repair" does not only mean returning hair that has curls or other imperfections on the surface to its original state without the curls or other imperfections, but also means gluing together at least some of the cracks in hair that has split ends or breaks, bringing it closer to its original state (i.e., a state in which the hair has no cracks).

[0034] (1-1) Terpenoid compounds: The terpenoid compound is selected from the group consisting of monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, and triterpenoids. The inclusion of such a terpenoid compound, in combination with the polyphenol and the cationic polymer, repairs hair and allows the repaired state to be maintained even after washing and brushing.

[0035] The terpenoid compound may have a carboxy group in the molecule. Such a terpenoid compound can effectively repair hair and maintain the repaired state even after washing and brushing.

[0036] Examples of terpenoid compounds having a carboxy group in the molecule include camphoric acid, abietic acid, fusidic acid, hervonic acid, betulinic acid, cricyrrhizic acid, glycyrrhetinic acid, oleanolic acid, oleanolic acid, and ursolic acid.

[0037] The content of the terpenoid compound is 0.00001 to 5.0% by mass, can be 0.00001 to 1.0% by mass, or can further be 0.0001 to 0.1% by mass. By setting the content within this range, the hair can be repaired, the repaired state can be maintained even after washing and brushing, and good texture can be maintained.

[0038] The terpenoid compound may be contained in a plant extract. That is, a plant extract containing a predetermined amount of the above-mentioned terpenoid compound may be used instead of the terpenoid compound. Examples of such plant extracts include ginkgo biloba leaf extract, plum fruit extract, ginseng root extract, olive leaf extract, orange juice, licorice root extract, Japanese pepper peel extract, soapwort leaf extract, hawthorn extract, perilla leaf extract, sage leaf extract, Swertia japonica extract, Tilia japonica fruit extract, jujube fruit extract, bitter orange peel extract, loquat leaf extract, grape leaf extract, prune hydrolyzate, lemon fruit extract, soapberry peel extract, Melissa officinalis leaf extract, Melia azadirachta leaf extract, lavender flower / leaf / stem extract, apple peel extract, rosemary leaf extract, and burnet extract.

[0039] (1-2) Polyphenols: Polyphenols are a general term for low molecular weight compounds with two or more phenolic hydroxyl groups, and are primarily derived from plants.

[0040] The polyphenol is not particularly limited as long as it is a low molecular weight compound, but it can be a polyphenol having a 3,4-dihydroxyphenyl group or a polyphenol having a 3,4,5-trihydroxyphenyl group, which will provide a better hair repair effect.

[0041] Polyphenols include monomeric polyphenols and polymeric polyphenols, and specific examples of monomeric polyphenols include flavonoids and non-flavonoids. Polymeric polyphenols include condensed and hydrolyzed types.

[0042] Examples of flavonoids include epicatechin (including cyanidin), epigallocatechin, epicatechin gallate, and epigallocatechin gallate. Non-flavonoids include those having a carboxyl group, such as tannic acid, gallic acid, ellagic acid, flavogallonic acid, procyanidin, chlorogenic acid, caffeic acid, rosmarinic acid, and chicoric acid.

[0043] Furthermore, the polyphenols can be used as plant extracts containing the polyphenols, that is, at least a portion of the polyphenols in the present invention may be polyphenols contained in plant extracts.

[0044] Examples of such plant extracts include tea leaf extract (tea leaf extract), rooibos extract, Geranium herb flower / leaf / stem extract (Geranium herb extract), Hamamelis leaf extract, Melissa leaf extract, Melia azadirachta leaf extract, Lavender flower / leaf / stem extract, Perilla leaf extract, Sage leaf extract, Swertia japonica extract, Geranium fruit extract, Hawthorn extract, Zanthoxylum pepper peel extract, Olive leaf extract, Jujube fruit extract, Arnica flower extract, Ivy leaf / stem extract, Watercress extract, Mallow flower extract Examples of extracts that may be used include, but are not limited to, grape leaf extract, rosemary leaf extract, turmeric extract, bilberry leaf extract, strawberry fruit extract, chrysanthemum flower extract, onion root extract, coffee tree seed extract, cherry blossom flower extract, chamomile flower extract, butterbur leaf / stem extract, Echinacea purpurea extract, Citrus tuberosa root extract, evening primrose flower extract, evening primrose seed extract, Matecha leaf extract, Sanguisorba officinalis extract, and Aristotelia chilensis fruit extract.

[0045] The polyphenol (total polyphenol) content in this plant extract can be calculated in terms of (+)-catechin equivalent using the Folin-Ciocalteu method.

[0046] The blending ratio of polyphenols is 0.00001 to 5.0% by mass, can be 0.00001 to 3.0% by mass, and is preferably 0.00001 to 1.0% by mass. By adjusting the blending ratio to within the above range, hair can be repaired, and the repaired state can be maintained even after washing and brushing, etc., and good texture can be maintained.

[0047] In the present invention, two or more types of polyphenols can be used in combination.

[0048] (1-3) Cationic polymer: The cationic polymer is a hydrophilic polymer composed of cationic monomer units having, for example, an aliphatic primary amino group, a secondary amino group, a tertiary amino group, a quaternary ammonium group, an amidine group, a guanidine group, or a quaternary nitrogen-containing heterocyclic residue.

[0049] Although the primary amino group, secondary amino group, and tertiary amino group are basic residues, they are partially protonated and behave as cationic groups in the weakly basic to weakly acidic aqueous solution of the hair cosmetic composition of the present invention. Therefore, polymers having these groups function as cationic polymers and are therefore referred to as cationic polymers.

[0050] Specifically, the cationic polymer may contain at least one polymer selected from the following (a) to (d), which can satisfactorily repair hair and maintain the repaired state even after washing and brushing.

[0051] Among these, those containing (d) cationized polysaccharides are preferable, as they can repair hair more effectively and maintain the repaired state even after washing and brushing.

[0052] (a) a cationic (meth)acrylate ((a) polymer) having a structural unit represented by the following general formula (1):

[0053] [ka] (In the general formula (1), X represents an oxygen atom, an NH group, or —O(CH) m PO4- group (m is an integer of 1 to 3), n is an integer of 2 or 3, R 1 represents a hydrogen atom or a methyl group, and R 2 indicates a methyl or ethyl group, and R 3 represents a carboxylate methyl group, and Y represents a chlorine atom or methosulfate.

[0054] (b) A homopolymer having a structural unit represented by the following general formula (2) to the following general formula (3) derived from an N-vinyl monomer, which is a cationic monomer containing a nitrogen-containing heterocycle containing a quaternary ammonium group, or a copolymer ((b) polymer) having at least one of the structural units represented by the following general formula (2) to the following general formula (3) derived from the N-vinyl monomer and a structural unit derived from a hydrophilic monomer.

[0055] [ka] (In the general formula (2), Y represents a chlorine atom or CH3OSO3.)

[0056] [ka] (In the general formula (3), Y represents a chlorine atom or CH3OSO3.)

[0057] (c) Diallyldimethylpyrrolidinium salt homopolymer or copolymer with hydrophilic (meth)acrylate or (meth)acrylamide ((c) polymer)

[0058] (d) Cationic polysaccharides ((d) polymers)

[0059] (1-3a)((a) Polymer): Examples of cationic (meth)acrylates having a structural unit represented by general formula (1) include chlorides, methosulfates, or phosphate salts of 2-trimethylammonioethyl (meth)acrylate, 3-trimethylammoniopropyl (meth)acrylate, 2-triethylammonioethyl (meth)acrylate, 3-triethylammoniopropyl (meth)acrylate, 2-carboxylatemethyldimethylammonioethyl (meth)acrylate, 3-carboxylatemethyldimethylammoniopropyl (meth)acrylate, 2-trimethylammonioethyl (meth)acrylamide, 3-trimethylammoniopropyl (meth)acrylamide, 2-carboxylatemethyldimethylammonioethyl (meth)acrylamide, and 3-carboxylatemethyldimethylammoniopropyl (meth)acrylamide, and 2-methacryloyloxyethyl phosphorylcholine.

[0060] (1-3b) ((b) polymer): Examples of N-vinyl monomers, which are cationic monomers containing a nitrogen-containing heterocycle containing a quaternary ammonium group, include 1-vinylimidazole, 2-vinylpyridine, 4-vinylpyridine, and vinyl monomers in which the nitrogen atom is quaternized with an alkyl group having 1 to 3 carbon atoms.

[0061] (1-3c)((c) polymer): An example of a homopolymer of a diallyldimethylpyrrolidinium salt is polyquaternium-6.

[0062] Furthermore, examples of copolymers of diallyldimethylpyrrolidinium salt with at least one (or both) of hydrophilic (meth)acrylate and (meth)acrylamide include Polyquaternium-7, Polyquaternium-22, Polyquaternium-39, Polyquaternium-68, Polyquaternium-86, Polyquaternium-94, and Polyquaternium-111.

[0063] (1-3d)((d) polymer): The cationized polysaccharide is a polysaccharide that has been cationized, and examples of the polysaccharide include cationized cellulose such as polyquaternium-10, cationized galactomannans such as guar hydroxypropyltrimonium chloride and cassia hydroxypropyltrimonium chloride, and cationized starches such as hydroxypropyltrimonium starch chloride.

[0064] More specifically, the cationic polymers include polyquaternium-4, polyquaternium-6, polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-13, polyquaternium-16, polyquaternium-17, polyquaternium-22, polyquaternium-28, polyquaternium-30, polyquaternium-32, polyquaternium-33, polyquaternium-37, polyquaternium-39, polyquaternium-40, polyquaternium-41, polyquaternium-42, polyquaternium-43, polyquaternium-44, polyquaternium-45, polyquaternium-46, polyquaternium-47, polyquaternium-48, polyquaternium-49, polyquaternium-50, polyquaternium-51, polyquaternium-52, polyquaternium-53, polyquaternium-54, polyquaternium-55, polyquaternium-56, polyquaternium-57, polyquaternium-58, polyquaternium-59, polyquaternium-60, polyquaternium-61, polyquaternium-62, polyquaternium-63, polyquaternium-64, polyquaternium-65, polyquaternium-66, polyquaternium-67, polyquaternium-68, polyquaternium-69, polyquaternium-70, polyquaternium-71, polyquaternium-72, polyquaternium-73, polyquaternium-74, polyquaternium-75, polyquaternium-76, polyquaternium-77, polyquaternium-78, polyquaternium-79, polyquaternium-80, polyquaternium-81, polyquaternium-82, polyquaternium-83, polyquaternium-84, polyquaternium-85, polyquaternium-86, polyquaternium-87, poly Polyquaternium-43, Polyquaternium-44, Polyquaternium-47, Polyquaternium-48, Polyquaternium-49, Polyquaternium-50, Polyquaternium-51, Polyquaternium-52, Polyquaternium-53, Polyquaternium-54, Polyquaternium-55, Polyquaternium-56, Polyquaternium-57, Polyquaternium-59, Polyquaternium-61, Polyquaternium-62, Polyquaternium-63, Polyquaternium Polyquaternium-64, Polyquaternium-65, Polyquaternium-67, Polyquaternium-68, Polyquaternium-69, Polyquaternium-71, Polyquaternium-72, Polyquaternium-73, Polyquaternium-75, Polyquaternium-77, Polyquaternium-84, Polyquaternium-85, Polyquaternium-86, Polyquaternium-87, Polyquaternium-90, Polyquaternium-92, Polyquaternium-94, Polyquaternium Polyquaternium-99, Polyquaternium-102, Polyquaternium-103, Polyquaternium-104, Polyquaternium-105, Polyquaternium-107, Polyquaternium-111, guar hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride, xanthan hydroxypropyltrimonium chloride, locust bean hydroxypropyltrimonium chloride, and the like.

[0065] Among these, for example, polyquaternium-4, polyquaternium-10, polyquaternium-67, polyquaternium-72, hydroxypropyl guar hydroxypropyltrimonium chloride, xanthan hydroxypropyltrimonium chloride, and locust bean hydroxypropyltrimonium chloride have a polysaccharide structure and fall under the category of (d) cationized polysaccharides.

[0066] The mass average molecular weight of the cationic polymer is not particularly limited. For example, 3 ~5×10 6 It can be about 2 x 10 3 ~3×10 6 It is best to limit it to that level.

[0067] The cationic polymer has a main chain containing carbon atoms and a side chain bonded to the carbon atoms and having a cationic nitrogen atom. Between the carbon atoms and the cationic nitrogen atoms, there are intervening atoms, which are at least one atom selected from the group consisting of carbon atoms, nitrogen atoms, oxygen atoms, and phosphorus atoms. The number of intervening atoms is 2 to 15. The number of intervening atoms is calculated by counting the number of atoms (linear atoms) bonded to each other from the cationic nitrogen atom to the atom directly bonded to the carbon atom of the main chain. If there are multiple possible values, the smallest one can be used. This can improve brushing performance after repair and further maintain the repaired state. There is no limitation on the type of intervening atoms.

[0068] In this specification, when counting the number of intervening atoms, the main chain refers to a linear group of atoms in the structural units constituting the polymer, in which atoms bonding to adjacent structural units are continuously bonded. However, in the case of (d) cationized polysaccharides ((d) polymers), the repeating skeleton constituting the polymer corresponds to the main chain.

[0069] The cationic polymer may have multiple types of side chains (side chains having a cationic nitrogen atom), and the number of intervening atoms may vary depending on the type of the side chain. When the cationic polymer has multiple types of side chains (side chains having a cationic nitrogen atom), the number of intervening atoms in all of the side chains may be 2 to 15, or the number of intervening atoms in some of the side chains may be 2 to 15.

[0070] (d) Cationic polysaccharides have a linear main chain composed of saccharides. Specifically, in the case of guar hydroxypropyltrimonium chloride (see Figure 3), this guar hydroxypropyltrimonium chloride is obtained by adding glycidyltrimethylammonium chloride, a quaternary ammonium salt, to guar gum. Guar gum has a linear main chain consisting of two repeating mannose units (mannose skeleton) and one galactose bonded as a side chain. Therefore, in the case of guar hydroxypropyltrimonium chloride, starting from the cationic nitrogen atom A of glycidyltrimethylammonium chloride, the number of intervening atoms from this cationic nitrogen atom A is 3. Furthermore, the number of intervening atoms of the galactose bonded to glycidyltrimethylammonium chloride is 6. That is, the number of atoms from the hydroxyl group (oxygen atom B) of galactose to the oxygen atom C bonded to carbon atom D of the main chain is 6. Thus, the total number of intervening atoms is "9." In FIG. 3, numbers are assigned to atoms that can be counted.

[0071] Furthermore, polyquaternium-10 (a polymer of a quaternary ammonium salt obtained by adding glycidyltrimethylammonium chloride) (see Figure 4) has a linear main chain consisting of the glucose skeleton (repeated skeleton) of hydroxyethyl cellulose, with glycidyltrimethylammonium chloride attached as a side chain. Therefore, the number of atoms (the number of intervening atoms) between the carbon atom Z and the cationic nitrogen atom X in the main chain of polyquaternium-10 is "4," which is the total number of atoms bonded from the cationic nitrogen atom X to the atom (oxygen atom Y) directly bonded to the carbon atom Z in the main chain. In Figure 4, the atoms that can be counted are numbered.

[0072] The blending ratio of the cationic polymer is 0.01 to 5.0% by mass, can be 0.1 to 5.0% by mass, and preferably 0.1 to 3.0% by mass. By adjusting the blending ratio within the above range, the hair can be repaired and the repaired state can be maintained even after washing and brushing.

[0073] (1-4) Solubilizer: The hair cosmetic composition of the present invention may further contain a solubilizer selected from the group consisting of nonionic surfactants and polyethylene glycols.

[0074] The incorporation of this solubilizer prevents the components from forming complexes with each other, improves the stability of the hair cosmetic composition, and contributes to improving the repair effect.

[0075] The solubilizer may further be selected from the group consisting of nonionic surfactants and polyethylene glycols having an HLB value of 20 or less. This can further improve the dispersibility of each of the blended components.

[0076] The HLB of the nonionic surfactant may be 10 to 20. The use of such a nonionic surfactant with an HLB of 10 to 20 can prevent precipitation of the blended components. The HLB of the nonionic surfactant is a value measured by the Griffin method or the like.

[0077] When polyethylene glycol is used as the solubilizer, it is preferable that the HLB value according to the organic conceptual diagram method (hereinafter sometimes simply referred to as "HLB") is 20 or less. In other words, the solubilizer is preferably selected from the group consisting of nonionic surfactants and polyethylene glycols having an HLB value according to the organic conceptual diagram method of 20 or less.

[0078] Polyethylene glycol having an HLB value of 20 or less according to the organic conceptual diagram method can prevent the components contained therein from forming complexes with each other, improve the stability of the hair cosmetic composition, contribute to improving the repair effect, and improve wash resistance.

[0079] Moreover, the polyethylene glycol preferably has an HLB value of 18 to 20, more preferably 18 to 19.5, as determined by the organic conceptual diagram method.

[0080] The HLB value according to the Organic Conceptual Diagram (OCD) is calculated using the formula: (inorganic value / organic value) × 10. Here, the inorganic / organic value is the IOB (Inorganic / Organic Balance) value, which is calculated based on the Organic Conceptual Diagram (Fujita, Atsushi, Prediction of Organic Compounds and the Organic Conceptual Diagram, Chemistry Vol. 11, No. 10 (1957) 719-715). More specifically, the OCD defines the degree of physical properties of a compound as "organic" and the degree of physical properties primarily due to van der Waals forces as "inorganic." The IOB value is an index of the balance between inorganic and organic properties. A compound with a higher IOB value exhibits more hydrophilic and polar properties.

[0081] The blending ratio of the solubilizer can be set appropriately, but can be 0 to 10% by mass, and preferably 0.01 to 5.0% by mass. Within this range, each blended component can be uniformly dispersed and washing durability can be maintained.

[0082] (1-4a) Nonionic surfactants: Examples of nonionic surfactants include those having the following basic skeletons: polyoxyethylene alkyl ether, polyoxyethylene steryl ether, polyoxyethylene fatty acid ester, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, glycol fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, sucrose fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene dimethicone copolymer, etc.

[0083] The ratio of the amount of polyphenol to the amount of nonionic surfactant (amount of polyphenol / amount of nonionic surfactant) can be 1.0 or less, preferably 0.5 or less, and more preferably 0 to 0.3. By keeping it in the above range, hair can be well restored.

[0084] (1-4b) Polyethylene glycol: The polyethylene glycol that can be used is one in which the degree of polymerization of the ethyleneoxy group is 4 to 400. Examples include PEG-4, PEG-6, PEG-8, PEG-12, PEG-20, PEG-32, PEG-40, PEG-75, PEG-150, PEG-240, and PEG-400, and mixtures of two or more of these can also be used.

[0085] (1-5) Oil: The hair cosmetic composition of the present invention can further contain an oil. By including this oil, the repaired state is further maintained even when subjected to external forces such as brushing (physical durability is improved). In other words, although there is a risk that hair may break again due to external forces such as brushing, by incorporating an oil, the repaired state is further maintained even when subjected to external forces. In addition, the ease of running fingers through the hair and dryness can be improved.

[0086] Examples of oils include horse oil, shea butter, lanolin, squalane, avocado oil, safflower oil, jojoba oil, beeswax, candelilla wax, vegetable squalane, liquid paraffin, paraffin, petrolatum, fatty acid esters, synthetic squalane, isoparaffin, methylpolysiloxane, methylphenylpolysiloxane, cyclopentasiloxane, higher alcohols, ester oils, cetanol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, oleyl alcohol, behenyl alcohol, and octyldodeca alcohol.

[0087] The oil preferably contains an oil having an ester group in its molecular structure. By using such an oil having an ester group in its molecular structure, physical durability can be further improved, and the ease of running fingers through the hair and dryness can be further improved.

[0088] Examples of oils having an ester group in the molecular structure include diisobutyl adipate, diPPG-2 myreth-10 adipate, diisononyl isoeicosanedioate, methylheptyl isostearate, isostearyl isostearate, isobutyl isostearate, isopropyl isostearate, ethyl isostearate, hexyldecyl isostearate, polyglyceryl isostearate, hydrogenated castor oil isostearate, butylene glycol isostearate, propylene glycol isostearate, sodium isostearoyl lactylate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, and isononyl isononanoate. Ethylhexyl isononanoate, tricyclodecane methyl isononanoate, hexyldecyl ethylhexanoate, cetyl ethylhexanoate, PPG-3 benzyl ether ethylhexanoate, oleyl erucate, diethylhexyl succinate, diethoxyethyl succinate, bisethoxydiglycol succinate, PG di(caprylic / capric acid), polyglyceryl diisostearate, neopentyl glycol diisononanoate, neopentyl glycol diethylhexanoate, neopentyl glycol diheptanoate, propylene glycol dicaprylate, neopentyl glycol dicaprate, cyclohexane-1,4-Dicarboxylic acid, bisethoxydiglycol, neopentyl glycol diheptanoate, diisopropyl dilinoleate, isocetyl stearate, stearyl stearate, octyldodecyl stearoyloxystearate, diethyl sebacate, diethylhexyl sebacate, hydrogenated castor oil dimer dilinoleate, dicaprylyl carbonate, polyglyceryl decaethylhexanoate, pentaerythrityl tetraisostearate, pentaerythrityl tetraisostearate, caprylic / capric triglyceride, triisostearin, trimethylolpropane triisostearate, polyglyceryl triisostearate, triethylhexanoin, trimethylolpropane triethylhexanoate, triheptanoin, isostearyl neopentanoate, isodecyl neopentanoate, methylheptyl palmitate, isopropyl palmitate, ethylhexyl palmitate Xyl, cetyl palmitate, ethylhexyl hydroxystearate, dipentaerythrityl hexaisononanoate, isocetyl myristate, isopropyl myristate, octyldodecyl myristate, methylheptyl myristate, PPG-3 benzyl ether myristate, butylene glycol laurate, isoamyl laurate, hexyl laurate, methylheptyl laurate, phytosteryl / octyldodecyl lauroyl glutamate Examples of suitable glycerides include diisostearyl malate, polyglyceryl isostearate / dimer dilinoleate copolymer, polyglyceride of oleic acid / linoleic acid / linolenic acid, coco-alkyl caprylate / caprate, triglyceride of caprylic acid / capric acid / succinate, glyceryl citric acid / lactic acid / linoleic acid / oleate, and diglycerin / dilinoleic acid / hydroxystearic acid copolymer.

[0089] The blending ratio of the oily agent can be 0.1% by mass or more, preferably 1.0 to 99.0% by mass, and more preferably 2.0 to 99.0% by mass. By blending in the above ratio, stiffness of hair can be prevented.

[0090] The oil may contain at least one oil having a mass-average molecular weight of 1000 or less, preferably at least one oil having a mass-average molecular weight of 100 to 1000, and more preferably at least one oil having a mass-average molecular weight of 100 to 800. In this way, the hair cosmetic composition can be prevented from becoming stiff after application to the hair.

[0091] (1-6)Wed: The hair cosmetic composition of the present invention may contain water in addition to the above-mentioned components. The content of water is not particularly limited, but may be 0.01 to 99.5% by mass.

[0092] (1-7) Other ingredients: The hair cosmetic composition of the present invention may contain, in addition to the above-mentioned terpenoid compound, polyphenol, cationic polymer, solubilizer, oil, and water, other ingredients such as a conditioning agent, a moisturizer, an alcohol, a film-forming agent, a penetration enhancer, a surfactant other than a nonionic surfactant, a thickener, a pH buffer, a preservative, and an antioxidant.

[0093] Conditioning agents include, for example, amino acids such as glycine, alanine, threonine, histidine, lysine, lysine HCl, arginine, valine, leucine, isoleucine, phenylalanine, proline, serine, threonine, hydroxyproline, tyrosine, aspartic acid, glutamic acid, arginine, N-acetyl-L-hydroxyproline, methyltyrosine HCl, and γ-aminobutyric acid; cocoyl arginine ethyl PCA; ceramide EOP; ceramide NG; ceramide NP; ceramide EOH; ceramide AG; ceramide AP; ceramide EOS; and glioblastoma. Ingredients: hydroxylic acid, glycolic acid, lactic acid, malic acid, malonic acid, fumaric acid, maleic acid, mandelic acid, pantothenic acid, glucuronic acid, gluconic acid, galacturonic acid, mannuronic acid, iduronic acid, tartaric acid, citric acid, oxalic acid, succinic acid, glutaric acid, ketoglutaric acid, adipic acid, citraconic acid, N-acyl glutamic acid, N-acylaspartic acid, biscetearyl amodimethicone, aminopropyl dimethicone, cyclomethicone, diphenylsiloxyphenyl trimethicone, dimethicone, tallow alkyltrimethylammonium chloride, distearyldimonium chloride Dicocodimonium chloride, dialkyl (C12-18) dimonium chloride, dicocoyl ethyl hydroxyethylmonium methosulfate, distearoyl ethyl hydroxyethylmonium methosulfate, isoalkyl (C10-40) amidopropyl ethyldimonium ethosulfate, stearamidopropyl dimethylamine, stearoxypropyl dimethylamine, steartrimonium chloride, steartrimonium bromide, stearoxypropyltrimonium chloride, cetrimonium chloride, cetrimonium methosulfate sulfate, alkyl PG dimethylamine, alkyl (C12-14)oxyhydroxypropyl arginine HCl, dialkyl (C12-18) dimonium chloride, dimer dilinoleyl dimer dilinoleate, dimer dilinoleyl bis(behenyl / isostearyl / phytosteryl) dimer dilinoleate, behentrimonium chloride, panthenyl hydroxypropyl steardimonium chloride, behenamidopropyl dimethylamine, behentrimonium methosulfate, behenyl PG trimonium chloride, benzalkonium chloride,Examples of such surfactants include stearamidopropyl dimethylamine, quaternium-18, quaternium-33, quaternium-87, quaternium-91, lauryltrimonium chloride, stearyl dihydroxypropyldimonium oligosaccharide, and γ-docosalactone.

[0094] Examples of moisturizing agents include 1,3-butylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isopropylene glycol, sorbitol, glycerin, diglycerin, polyglycerin, fructose, panthenol, pyrrolidonecarboxylic acid, urea, hydrosilylated urea, dimethylurea, hydrolyzed hyaluronic acid, sodium hyaluronate, dilauroyl glutamate lysine, hydrolyzed wheat starch, creatine, panthenyl ethyl, niacinamide, and plant extracts.

[0095] Examples of alcohols include methanol, ethanol, propyl alcohol, isopropyl alcohol, benzyl alcohol, 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol.

[0096] Examples of film-forming agents include, but are not limited to, (propyltrimonium chloride acrylamide / dimethylacrylamide) copolymer, (glycerylamide ethyl methacrylate / stearyl methacrylate) copolymer, hexyldicarbamate cholesteryl pullulan, tuberose polysaccharide, Fukuro Funori extract, Funoran Na, Aphanothece sacrum polysaccharide, tragacanth, aminopropyl dimethicone, silicone quaternium, (divinyl dimethicone / dimethicone) copolymer, (bisisobutyl PEG / amodimethicone) copolymer, amodimethicone, polysilicone, biscetearyl amodimethicone, and the like.

[0097] Examples of the thickener include hydroxyethyl cellulose and N-vinylpyrrolidone.

[0098] Examples of preservatives include phenoxyethanol, paraben, sorbic acid and its salts, dehydroacetic acid and its salts, and salicylic acid and its salts.

[0099] Further examples include chelating agents such as pentetic acid and its salts, etidronic acid and its salts, and edetic acid and its salts; ultraviolet absorbers such as benzophenone derivatives, para-aminobenzoic acid derivatives, paramethicinnamic acid derivatives, and salicylic acid derivatives; antioxidants such as tocopherol, ascorbic acid, sodium pyrosulfite, copper chlorophyllin sodium, abietic acid, and cyclodextrin; fragrances; and pH adjusters.

[0100] The blending ratio of the other components can be, for example, about 0.001 to 50 mass %.

[0101] (2) Use of the hair cosmetic composition: The hair cosmetic composition of the present invention may be used in any suitable form without any particular limitation, and may be, for example, a lotion, emulsion, gel, cream, mist, oil, oil gel, multi-layer lotion, etc.

[0102] Furthermore, the hair cosmetic composition of the present invention can be formulated into various known hair treatment agent forms such as hair treatment agents, pre-shampoo agents, shampoo agents, hair spray agents, hair setting agents, hair liquid agents, hair cream agents, and hair foam agents. [Example]

[0103] The present invention will be specifically described below based on examples, but the present invention is not limited to these examples.

[0104] First, the names (abbreviations) and manufacturers of the compounds used in the examples and comparative examples are shown below.

[0105] [Terpenoid compounds] The terpenoid compounds used were monoterpenoids, diterpenoids, triterpenoids, and other terpenoids.

[0106] Here, monoterpenoids are 2 isoprene units, sesquiterpenoids are 3 isoprene units, diterpenoids are 4 isoprene units, triterpenoids are 6 isoprene units, and tetraterpenoids are 8 isoprene units.

[0107] (monoterpenoids) (1) Linalyl acetate, manufactured by Tokyo Chemical Industry Co., Ltd. (2) Camphoric acid, manufactured by Tokyo Chemical Industry Co., Ltd.

[0108] (Diterpenoids) (1) Abietic acid, manufactured by Tokyo Chemical Industry Co., Ltd.

[0109] (triterpenoids) (1) Ursolic acid, manufactured by Tokyo Chemical Industry Co., Ltd. (2) Oleanolic acid, manufactured by Tokyo Chemical Industry Co., Ltd. (3) Glycyrrhetinic acid, manufactured by Co., Ltd. (4) Fujisin acid, manufactured by Tokyo Chemical Industry Co., Ltd. (5) Betulinic acid, manufactured by Tokyo Chemical Industry Co., Ltd. (6) Fluvoic acid, manufactured by Tokyo Chemical Industry Co., Ltd.

[0110] (Other terpenoids) (1) Farnesyl acetate (sesquiterpenoid), manufactured by Tokyo Chemical Industry Co., Ltd. (2) Lycopene (tetraterpenoid), manufactured by Tokyo Chemical Industry Co., Ltd.

[0111] [Polyphenols] (1) Tannic acid, manufactured by Hayashi Pure Chemical Industries, Ltd. (2) Tea leaf extract (tea catechin), abbreviated as CT (polyphenol content: 70% by mass) (3) Epigallocatechin gallate, abbreviated as EGCG (polyphenol content: 71% by mass) (4) Hamamelis virginiana (witch hazel) leaf extract (hamamelis virginiana (witch hazel) extract (hamamelitannin)), abbreviated as HT (polyphenol content: 0.55% by mass) (5) Cyanidin chloride, abbreviated as CC, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. (6) Rosmarinic acid, abbreviated as RA, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.

[0112] The polyphenol content was calculated as the (+)-catechin equivalent amount using the Folin-Ciocalteu method.

[0113] [Polymer] (cationic polymer) (a) Polymer: (1) Polyquaternium-37, abbreviated as PQ37, manufactured by Toyo Science Co., Ltd. (2) Polyquaternium-61, abbreviated as PQ61, manufactured by NOF Corporation

[0114] (b) Polymer: (1) Polyquaternium-68, abbreviated as PQ68, BASF Japan Ltd.

[0115] (c) Polymer: (1) Polyquaternium-6, abbreviated as PQ6, manufactured by Toho Chemical Industry Co., Ltd. (2) Polyquaternium-7, abbreviated as PQ7, manufactured by Senka Corporation (3) Polyquaternium-22, abbreviated as PQ22, manufactured by Toho Chemical Industry Co., Ltd. (4) Polyquaternium-39, abbreviated as PQ39, manufactured by Lubrizol Japan, Ltd.

[0116] (d) Polymer: (1) Hydroxypropyl guar hydroxypropyltrimonium chloride, abbreviated as ST, manufactured by Solvay Nicca Co., Ltd. (2) Polyquaternium-10, abbreviated as PQ10, manufactured by Lubrizol Japan, Ltd. (3) Polyquaternium-67, abbreviated as PQ67, Dow Toray Industries, Inc.

[0117] [Nonion] (1) (C12-14) Palace-12 (nonionic surfactant), manufactured by Nikko Chemicals Co., Ltd. (2) PEG12 Dimethicone (nonionic surfactant), manufactured by Dow Toray Industries, Inc.

[0118] [Oil] (1) Ethylhexyl isononanoate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (2) Isononyl isononanoate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (3) Ethyl isostearate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (4) Hexyldecyl ethylhexanoate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (5) Polyglyceryl-3 diisostearate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (6) Dimethicone 10cs, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (7) Dipentaerythrityl hexaisononanoate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (8) Pentaerythrityl tetraisostearate, manufactured by Kokyu Alcohol Kogyo Co., Ltd. (9) Pearleem 24, manufactured by NOF Corporation (10) Pearlream 46, manufactured by NOF Corporation (11) Dimethicone 20cs, manufactured by Dow Toray Co., Ltd.

[0119] Next, each hair cosmetic composition was prepared by blending the components as shown in Tables 1 to 4 and Tables 6 and 7, and each prepared hair cosmetic composition was evaluated for its "repair effect," "washing resistance," "brushing resistance," and "number of brushing cycles." Further evaluations were also conducted for its "hair smoothness," "prevention of hangnails," "volume and wave suppression," and "moisturizing." The evaluation methods and evaluation criteria are shown below.

[0120] [Repair effect] The repair effect (hair repair ability) was evaluated as follows. First, as a representative example of hair damage that is difficult to repair, a 10 cm long damaged hair with split ends (hair with a part of the tip split and split) was photographed using a digital microscope ((X) in Figure 1). This damaged hair was immersed in a hair cosmetic composition (treatment solution) at room temperature, immediately removed, and left at room temperature for 5 minutes. The damaged hair treated in this way was again observed using a digital microscope to confirm the hair repair ability.

[0121] The hair repair ability was evaluated according to the following criteria. "A": When the tip splits and all the branched parts are glued together and return to their original state (Figure 1 (a)). "B": When the tip splits and some of the branched parts are glued together (Figure 1 (b)). "C": When the tip splits and the branched parts do not adhere to each other, but the distance between the parts narrows ((c) in Figure 1). "D": The branched parts that split at the tip did not adhere to each other, and the distance between the parts remained the same as before treatment ((d) in Figure 1).

[0122] In the ratings "C" and "D," the distance between the split ends was measured at the middle of the split end (the midpoint between the start of the split and the tip of the damaged hair).

[0123] FIG. 1(b) shows the state where the portions between the two triangles are glued together.

[0124] [Washing resistance] The wash resistance (washing durability) was evaluated using the following procedure. First, the damaged hair that had been evaluated for hair repair ability was used as is and a commercially available alkaline shampoo (pH 12) was used on this damaged hair. Specifically, the damaged hair was rubbed with fingers in the same direction 10 times, and then exposed to running water at 40°C and washed for 1 minute. After that, it was allowed to air dry for 5 minutes, and the dried damaged hair (damaged hair after washing) was observed under a digital microscope.

[0125] The observed damaged hair after washing was evaluated for wash durability according to the following criteria.

[0126] "A": When the tip is split and all the branched parts are glued together and united. "B": When the tip is split and some of the branched parts are glued together "C": When the tip is torn and the split ends are not bonded together, but the distance between the split ends is narrower than before treatment (when a slight repair effect remains) "D": When the split ends at the tip do not adhere to each other, and the distance between the split ends is the same as that of the damaged hair before treatment (when the repair effect has completely disappeared) ((d) in Figure 1).

[0127] In the ratings "C" and "D," the distance between the split ends was measured at the middle of the split end (the midpoint between the start of the split and the tip of the damaged hair).

[0128] [Brushing resistance] The damaged hair that had been evaluated for wash resistance was used as is and brushed. Specifically, the damaged hair (test hair) was rubbed vigorously in the same direction five times with the nylon synthetic fiber part of a hair dye comb (manufactured by Osaka Brush Co., Ltd.). After brushing, the damaged hair was observed under a digital microscope.

[0129] Damage to the hair after brushing was evaluated according to the following criteria.

[0130] "A": When the tip is split and all the branched parts are glued together and united. "B": When the tip is split and some of the branched parts are glued together "C": When the tip is torn and the split ends are not bonded together, but the distance between the split ends is narrower than before treatment (when a slight repair effect remains) "D": When the split ends do not adhere to each other and the distance between the split ends is the same as that of the damaged hair before treatment (when the repair effect has completely disappeared) (Figure 1 (d)).

[0131] In the ratings "C" and "D," the distance between the split ends was measured at the middle of the split end (the midpoint between the start of the split and the tip of the damaged hair).

[0132] [Durability] In the brushing resistance test, the test hair was rubbed strongly in the same direction five times with a nylon synthetic fiber part, and then rubbed strongly in the same direction 30 times and 35 times, after which the test hair was observed under a digital microscope. The observed test hair was evaluated according to the following criteria. "S": If the test hair remains attached even after more than 30 brushings (specifically 35 brushings) "A": If the test hair remains attached after 30 brushings "B": If the tip of the test hair is torn after 30 brushings

[0133] [Hair smoothness] The damaged hair that had been evaluated for wash resistance was subjected to a sensory test to evaluate the smoothness of the hair. The evaluation criteria were as follows: [A]: If the hair is smooth [B]: If the hair is slightly smooth [C]: When there is no change compared to damaged hair [D]: If your hair is hard

[0134] [Prevents hangnails] The damaged hair that had been evaluated for wash resistance was observed under a microscope to check the degree of hangnails. The evaluation criteria were as follows: [A]: When no hangnails are observed [B]: When hangnails are barely visible [D]: When there is no change compared to damaged hair

[0135] [Volume waviness suppression] The damaged hair (test hair) that had been evaluated for wash resistance as described above was left hanging in an environment with a humidity of 60% and a temperature of 24°C for 24 hours, and then the degree of frizziness of the damaged hair (test hair) was visually observed. The observation results were evaluated according to the following evaluation criteria. When hair is exposed to a high humidity environment, it usually becomes more frizzy. In other words, when hair is left untreated or treated with a treatment agent that does not have a frizz-suppressing effect, the hair becomes more frizzy. [A]: If no wavy hair is found in the test hair [B]: When the waviness of the test hair is slightly suppressed [C]: When the test hair has not changed compared to before evaluation [D]: When stronger undulations are observed in the test hair

[0136] [Moisture] The degree of moisture of the damaged hair that had been evaluated for wash resistance was evaluated by four panelists. Specifically, the degree of moisture was evaluated on a four-point scale from 1 to 4 (the higher the number, the more moisturized the hair), and the average value of the four panelists was calculated. The calculated average value was evaluated according to the following criteria. [A]: If the average value is 3 or higher [B]: If the average value is 2 or more but less than 3 [C]: Average value is greater than 1 but less than 2 [D]: If the average value is 1 or less

[0137] In each example, numerous curls were observed on the surface of the test hair before treatment with the hair repair agent composition (see Figure 2(a) "Before Treatment"), but the occurrence of curls was reduced "After Treatment" with the hair repair agent composition (see Figure 2(b) "After Treatment"). Similarly, the occurrence of curls was maintained low "After Washing" with the hair repair agent composition (see Figure 2(c) "After Washing"). The upper and lower rows in Figures 2(a) to (c) each show different parts of the same damaged hair (test hair). In each comparative example, the curls on the surface of the test hair showed a similar tendency to the results "After Treatment" and "After Washing" with the hair repair agent composition, and the occurrence of curls could not be fully eliminated.

[0138] (Examples 1 to 43, Comparative Examples 1 to 11) Each hair cosmetic composition was prepared according to the formulation shown in Tables 1 to 4. Specifically, a cationic polymer was mixed with purified water, heated to 60°C, and then cooled to 24°C. The other ingredients, terpenoid, polyphenol, and nonionic surfactant, dissolved in the purified water were then stirred at 500 rpm for 10 minutes at 24°C to obtain a treatment solution. The pH was then adjusted to 6.5 with citric acid and sodium citrate to prepare each hair cosmetic composition.

[0139] [Table 1]

[0140] [Table 2]

[0141] [Table 3]

[0142] [Table 4]

[0143] Next, the hair cosmetic compositions prepared in Examples 1 to 43 and Comparative Examples 1 to 11 were evaluated for "repair effect," "washing resistance," "brushing resistance," "number of brushing cycles," "hair smoothness," "prevention of hangnails," "volume and wave suppression," and "moisture." The evaluation results are shown in Table 5. Note that if the "repair effect" was rated D, evaluations of "washing resistance," "brushing resistance," and "number of brushing cycles" were not performed, and therefore this is indicated by "-." Furthermore, if the "washing resistance" was rated D, evaluations of "brushing resistance" and "number of brushing cycles" were not performed, and therefore this is indicated by "-."

[0144] [Table 5]

[0145] (Examples 44 to 60) Each hair cosmetic composition was prepared according to the formulations shown in Tables 6 and 7. Specifically, a cationic polymer was mixed with purified water and heated to 60°C. A nonionic surfactant, terpenoid, and oil were then added in that order, and the mixture was stirred at 1,500 rpm for 10 minutes at 60°C to prepare a base. Polyphenols were then dissolved in the purified water, and the pH was adjusted to 6.5 with citric acid and sodium citrate to prepare polyphenol water. The polyphenol water was then added to the base, which had been cooled to 24°C, and the mixture was stirred at 500 rpm at 24°C for 10 minutes to prepare each hair cosmetic composition.

[0146] [Table 6]

[0147] [Table 7]

[0148] The hair cosmetic compositions prepared in Examples 44 to 60 were evaluated for their "repair effect," "washing resistance," "brushing resistance," "number of brushing cycles," "hair smoothness," "prevention of hangnails," "volume and wave suppression," and "moisture." The evaluation results are shown in Table 8.

[0149] [Table 8]

[0150] (result) As described above, it can be seen that the hair cosmetic compositions of Examples 1 to 60 are able to repair hair and maintain the repaired state even after washing and brushing, compared to the compositions of Comparative Examples 1 to 11. Furthermore, it can be seen that the hair cosmetic compositions of Examples 1 to 60 can make hair smooth, prevent hangnails, suppress volume and waviness, and make hair moisturized. [Industrial Applicability]

[0151] The hair cosmetic composition of the present invention can be used as a repair agent to repair even difficult-to-repair hair that has curled or split ends on the hair surface, and to maintain the repaired state even after washing and brushing.

Claims

1. a terpenoid compound selected from the group consisting of monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, and triterpenoids; Polyphenols and a cationic polymer; Contains The content of the terpenoid compound is 0.00001 to 5.0% by mass, The content of the polyphenol is 0.00001 to 5.0% by mass, The hair cosmetic composition contains the cationic polymer in an amount of 0.01 to 5.0% by mass.

2. 2. The hair cosmetic composition according to claim 1, wherein the polyphenol is a polyphenol having a 3,4-dihydroxyphenyl group or a polyphenol having a 3,4,5-trihydroxyphenyl group.

3. The hair cosmetic composition according to claim 1 or 2, further comprising a solubilizer selected from the group consisting of nonionic surfactants and polyethylene glycols.

4. The hair cosmetic composition according to claim 3, wherein the terpenoid compound has a carboxy group in the molecule.

5. 4. The hair cosmetic composition according to claim 3, wherein the solubilizer is selected from the group consisting of nonionic surfactants and polyethylene glycols having an HLB of 20 or less.

6. 3. The hair cosmetic composition according to claim 1, wherein the cationic polymer comprises at least one polymer selected from the following (a) to (d): (a) a cationic (meth)acrylate having a structural unit represented by the following general formula (1): 【Chemistry 1】 (In the general formula (1), X is an oxygen atom, an NH group, or —O(CH ２ ) ｍ P.O. ４ - group (m is an integer of 1 to 3), n is an integer of 2 or 3, R １ represents a hydrogen atom or a methyl group, and R ２ represents a methyl group or an ethyl group, and R ３ represents a carboxylate methyl group, and Y represents a chlorine atom or methosulfate. (b) A homopolymer having a structural unit represented by the following general formula (2) to the following general formula (3) derived from an N-vinyl monomer, which is a cationic monomer containing a nitrogen-containing heterocycle containing a quaternary ammonium group, or a copolymer having at least one of the structural units represented by the following general formula (2) to the following general formula (3) derived from the N-vinyl monomer and a structural unit derived from a hydrophilic monomer: 【Chemistry 2】 (In the general formula (2), Y is a chlorine atom or CH ３ OSO ３ (Indicates 【Transformation 3】 (In the general formula (3), Y is a chlorine atom or CH ３ OSO ３ (Indicates (c) A homopolymer of a diallyldimethylpyrrolidinium salt, or a copolymer of a diallyldimethylpyrrolidinium salt and at least one of a hydrophilic (meth)acrylate and a (meth)acrylamide. (d) cationized polysaccharides

7. 3. The hair cosmetic composition according to claim 1, wherein the cationic polymer has a main chain containing a carbon atom and a side chain bonded to the carbon atom and having a cationic nitrogen atom, and wherein an intervening atom is present between the carbon atom and the cationic nitrogen atom, the intervening atom being at least one atom selected from the group consisting of carbon atom, nitrogen atom, oxygen atom, and phosphorus atom, and the number of intervening atoms is 2 to 15.

8. 4. The hair cosmetic composition according to claim 3, wherein the ratio of the amount of polyphenol to the amount of nonionic surfactant (amount of polyphenol / amount of nonionic surfactant) is 1.0 or less.

9. The hair cosmetic composition according to claim 1 or 2, further comprising 0.1 to 99% by mass of an oily agent.

10. The hair cosmetic composition according to claim 9 , wherein the oil comprises at least one oil having a mass average molecular weight of 1,000 or less.

11. The hair cosmetic composition according to claim 1 or 2, wherein the terpenoid compound is contained in a plant extract.

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