Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
  • A61K8/06—Emulsions
  • A61K8/062—Oil-in-water emulsions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
  • A61K8/06—Emulsions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/89—Polysiloxanes
  • A61K8/896—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate
  • A61K8/898—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/12—Preparations containing hair conditioners
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/54—Polymers characterized by specific structures/properties
  • A61K2800/542—Polymers characterized by specific structures/properties characterized by the charge
  • A61K2800/5424—Polymers characterized by specific structures/properties characterized by the charge anionic
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/54—Polymers characterized by specific structures/properties
  • A61K2800/542—Polymers characterized by specific structures/properties characterized by the charge
  • A61K2800/5426—Polymers characterized by specific structures/properties characterized by the charge cationic
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/54—Polymers characterized by specific structures/properties
  • A61K2800/542—Polymers characterized by specific structures/properties characterized by the charge
  • A61K2800/5428—Polymers characterized by specific structures/properties characterized by the charge amphoteric or zwitterionic
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/59—Mixtures
  • A61K2800/594—Mixtures of polymers

Definitions

• the present invention relates to hair cosmetic compositions.
• Patent Document 1 uses a composition for treating keratin substances characterized by containing at least one anionic polymer and at least one cationic polymer in a solvent medium. It is stated that the anionic polymer can thus be fixed to the keratinous material, which can include, inter alia, hair, skin or nails. Moreover, it is assumed that the reason why the above effect is obtained is related to a complex formed by interaction between the anionic polymer and the cationic polymer.
• Patent Document 2 discloses a cationic polymer having a charge density within a predetermined range and a predetermined anionic structural unit containing 80% by mass or more and 100% by mass or less, and having a weight average molecular weight of 4. and an anionic polymer of 80,000 or more and 80,000 or less can improve the feel and appearance of damaged hair, and can maintain these effects even after repeated hair washing. It is
• the present invention Component (A): one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers, Component (B): one or more anionic polymers selected from the group consisting of polyacrylic acid, (meth)acrylic acid/(meth)acrylic acid alkyl ester copolymers, or salts thereof, and Component (C): one or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones; and the weight average molecular weight of the component (B) is 3,000 or more and 50,000 or less, and the total content of the component (A) and the component (B) is less than 1.0% by mass, It relates to a hair cosmetic composition, wherein the content of component (C) is 0.03% by mass or more.
• Patent Document 1 As described in Patent Document 1, it is known that a complex formed from a cationic polymer and an anionic polymer (hereinafter also referred to as "polyion complex”) is used as a composition for treating keratin substances, but hair cosmetics are known to be used. There is still room for improvement in improving performance when used as a composition.
• a hair conditioner which is a type of hair cosmetic composition, it should have a good feel when applied to the hair, and the hair after treatment should not spread even under high humidity conditions, and should have excellent moisture resistance. Desired.
• the conventional techniques according to Patent Documents 1 and 2 have not been particularly effective in suppressing hair spreading under high-humidity conditions.
• compositions containing polyion complexes take the form of oil-in-water or water-in-oil emulsion compositions, but these emulsion compositions have a problem of improving stability over time.
• cationic surfactants, higher alcohols and the like are sometimes blended in order to improve the feel of hair after treatment.
• stability tends to decrease when these components are added to the emulsified composition containing the polyion complex.
• An object of the present invention is to provide a hair cosmetic composition that has a good feel when applied to the hair, can suppress spreading of the hair under high humidity conditions, and has high stability.
• the present inventors contain one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers, a predetermined anionic polymer, and a predetermined modified silicone, and the total content of the two polymers is It has been found that a hair cosmetic composition having a specific value or less can solve the above problems.
• a hair cosmetic composition that has a good feel when applied to the hair, can suppress spreading of the hair under high humidity conditions, and has high stability.
• the hair cosmetic composition of the present invention (hereinafter also simply referred to as "the composition of the present invention") is Component (A): one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers, Component (B): one or more anionic polymers selected from the group consisting of polyacrylic acid, (meth)acrylic acid/(meth)acrylic acid alkyl ester copolymers, or salts thereof, and Component (C): one or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones; and the weight average molecular weight of the component (B) is 3,000 or more and 50,000 or less, and the total content of the component (A) and the component (B) is less than 1.0% by mass, The content of the component (C) is 0.03% by mass or more.
• Component (A) one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers
• the hair cosmetic composition of the present invention has a good feel when applied to the hair, can suppress spreading of the hair under high humidity conditions, and has high stability.
• "containing the component X” also includes blending the component X.
• the hair cosmetic composition of the present invention contains a polyion complex formed from component (A) and component (B).
• a polyion complex is an aggregate formed by chemical and electrostatic interactions between component (A) and component (B).
• the polyion complex is sparingly soluble in water, and a hydrophobic film can be formed by applying a hair cosmetic composition containing the polyion complex to the hair. It is believed that the formation of this hydrophobic film improves the feeling of application to the hair and improves the moisture resistance. Furthermore, it is believed that coating the surface of hair with the component (C) contained in the hair cosmetic composition further improves the effect of suppressing spread of hair under high humidity conditions. Further, by setting the total content of component (A) and component (B) in the hair cosmetic composition to less than 1.0% by mass, stability is maintained even in the form of an emulsion composition containing a polyion complex. expected to improve.
• the form of the hair cosmetic composition of the present invention is preferably an emulsified composition, and more preferably an oil-in-water emulsified composition from the viewpoints of stability of the composition and improvement of feel during use.
• product forms of hair cosmetic compositions include hair shampoos, hair rinses, hair conditioners, hair treatments (including leave-in types), hair styling agents, and the like.
• hair conditioners, hair treatments, and hair styling agents are preferred from the viewpoint of effectiveness of the effects of the present invention.
• Each component contained in the hair cosmetic composition will be described below.
• Component (A) one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers
• Component (A) is at least one polymer selected from the group consisting of cationic polymers and amphoteric polymers, capable of forming a polyion complex through interaction with component (B).
• Component (A), a cationic polymer means a polymer that preferably has cationic groups and is substantially free of anionic and amphoteric groups. "Substantially free of anionic groups and amphoteric groups” means that the molar amount of anionic groups and amphoteric groups to cationic groups is preferably 0.1% or less.
• the amphoteric polymer as component (A) is preferably a polymer having a cationic group and an anionic group, a 1% aqueous solution of the polymer having a pH of less than 5.1 at 25°C, and a total charge of the polymer is a positively charged polymer.
• the pH can be measured with a pH meter.
• the cationic group is a cationic group or a group that can be ionized to become a cationic group, and specifically includes a primary amino group, a secondary amino group, a tertiary amino group, a Quaternary ammonium groups are mentioned.
• the anionic group is an anionic group, or a group that can be ionized to become an anionic group, and specifically, one or more selected from the group consisting of acidic groups such as a carboxy group, a sulfonic acid group, and a phosphoric acid group. and preferably one or more selected from a carboxy group and a sulfonic acid group, more preferably a carboxy group. At least part of the anionic groups may be neutralized and in a salt state.
• the cationic charge density of component (A) is preferably 0.1 meq/g or more, more preferably 0.5 meq/g or more, still more preferably from the viewpoint of facilitating the formation of a polyion complex through interaction with component (B). is 1.0 meq/g or more, more preferably 2.0 meq/g or more, and from the viewpoint of composition stability, preferably 10 meq/g or less, more preferably 8.0 meq/g or less, and even more preferably 7.0 meq/g or less.
• the cationic charge density of component (A) is preferably 0.1 meq/g or more and 10 meq/g or less, more preferably 0.5 meq/g or more and 8.0 meq/g or less, still more preferably 1.0 meq/g or more.
• the cationic charge density of component (A) can be calculated from (number of moles of cationic groups contained per 1 g of polymer) ⁇ 1000 (meq/g).
• two or more polymers may be used as the component (A), and the cationic charge density of the component (A) in this case is a weighted average obtained from the cationic charge density of each polymer and the blending amount. It is obtained by calculating
• the weight-average molecular weight (Mw) of component (A) is selected from the viewpoints of ease of formation of a polyion complex, stability of the composition, improvement in feel when applied to hair, and suppression of hair spreading under high humidity conditions. , preferably 5,000 or more, more preferably 8,000 or more, and preferably 2,000,000 or less, more preferably 1,500,000 or less.
• the weight average molecular weight (Mw) of component (A) is preferably from 5,000 to 2,000,000, more preferably from 8,000 to 1,500,000.
• the weight average molecular weight of component (A) can be measured by gel permeation chromatography (GPC).
• polymers used as component (A) include cationic guar gum, cationic tara gum, cationic locust bean gum, cationic starch, cationic cellulose, cationic hydroxyalkylcellulose, cationic polyvinyl alcohol, polyethyleneimine, Quaternized dialkylaminoalkyl (meth)acrylate polymer, diallyl quaternized ammonium salt polymer, methacrylamidopropyltrimethylammonium salt polymer, methacryloylethyltrimethylammonium salt polymer, vinylimidazolium trichloride vinyl Pyrrolidone copolymer (polyquaternium-16), vinylpyrrolidone/alkylamino (meth)acrylate copolymer, vinylpyrrolidone/alkylamino (meth)acrylate/vinylcaprolactam copolymer, alkylacrylamide/(meth)acrylate/alkylaminoalkyl Acrylamide/polyethylene glyco
• the cationized hydroxyalkyl cellulose includes cationized hydroxyethyl cellulose, cationized hydroxypropyl cellulose, and the like.
• Examples of cationized hydroxyethyl cellulose include o-[2-hydroxy-3-(trimethylammonio)chloride propyl]hydroxyethyl cellulose (polyquaternium-10).
• Quaternized dialkylaminoalkyl (meth)acrylate polymers include vinylpyrrolidone/N,N-dimethylaminoethyl methacrylate diethyl sulfate copolymer (polyquaternium-11), N,N-dimethylaminoethyl methacryl acid diethyl sulfate/N,N-dimethylacrylamide/polyethylene glycol dimethacrylate copolymer (polyquaternium-52);
• diallyl quaternary ammonium salt polymers include dimethyldiallylammonium chloride polymer (polyquaternium-6), dimethyldiallylammonium chloride/acrylic acid copolymer (polyquaternium-22), diallyldimethylammonium chloride/acrylamide copolymer ( polyquaternium-7), acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer (polyquaternium-39), and the like.
• methacrylamidopropyltrimethylammonium salt polymer examples include methacrylamidopropyltrimethylammonium chloride polymer, vinylpyrrolidone/methacrylamidopropyltrimethylammonium chloride copolymer, acrylic acid/methyl acrylate/methacrylamidopropyltrimethylammonium chloride copolymer ( polyquaternium-47), acrylic acid/acrylamide/methacrylamidopropyltrimethylammonium chloride copolymer (polyquaternium-53), and the like.
• methacryloylethyltrimethylammonium salt polymer methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37), methacryloylethyldimethylbetaine/methacryloylethyltrimethylammonium chloride/methoxypolyethylene glycol methacrylate copolymer (Polyquaternium-49), methacryloylethyldimethylbetaine/methacryloylethyltrimethylammonium chloride/2-hydroxyethyl methacrylate copolymer (polyquaternium-48);
• Component (A) can be used singly or in combination of two or more.
• component (A) is at least a cation from the viewpoint of ease of forming a polyion complex, stability of the composition, improvement of feel when applied to hair, and suppression of hair spreading under high humidity conditions. It is preferably a polymer having a functional group.
• Component (A) is more preferably a quaternized dialkylaminoalkyl (meth) from the viewpoints of stability of the composition, improvement of feel when applied to hair, and suppression of spread of hair under high humidity conditions.
• the preferred ranges of the cationic charge density and weight average molecular weight of the following polymers are the ease of forming a polyion complex, the stability of the composition, the improvement of the feel when applied to the hair, and high humidity conditions. From the viewpoint of suppressing the spread of hair underneath, the following is preferable.
• the cationic charge density of the dimethyldiallylammonium chloride polymer (polyquaternium-6) is more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g or more, and even more preferably 6.5 meq/g. It is below.
• the weight average molecular weight is more preferably 10,000 or more and 200,000 or less.
• the cationic charge density of the dimethyldiallylammonium chloride/acrylic acid copolymer is more preferably 2.0 meq/g or more, still more preferably 3.0 meq/g or more, and even more preferably 4.0 meq. /g, more preferably 6.5 meq/g or less, and even more preferably 6.0 meq/g or less.
• the weight average molecular weight is more preferably 20,000 or more, still more preferably 50,000 or more, still more preferably 100,000 or more, still more preferably 200,000 or more, and even more preferably 300,000 or more. It is preferably 1,000,000 or less, more preferably 600,000 or less, and even more preferably 500,000 or less.
• the cationic charge density of the acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer is more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g or more, and even more preferably. is 6.5 meq/g or less, more preferably 5.0 meq/g or less, and even more preferably 4.0 meq/g or less.
• the weight average molecular weight is more preferably 20,000 or more, still more preferably 50,000 or more, still more preferably 100,000 or more, still more preferably 1,000,000 or less, even more preferably 600,000 or less, still more preferably It is preferably 500,000 or less, more preferably 300,000 or less.
• the cationic charge density of acrylic acid/methyl acrylate/methacrylamidopropyltrimethylammonium chloride copolymer is more preferably 2.0 meq/g or more, and still more preferably 2.5 meq/g or more. , more preferably 6.5 meq/g or less, still more preferably 5.0 meq/g or less, and even more preferably 4.5 meq/g or less.
• the weight average molecular weight is more preferably 200,000 or more, still more preferably 500,000 or more, still more preferably 1,000,000 or more, preferably 5,000,000 or less, more preferably 3,000,000 or less, and still more preferably 1,500,000 or less. is.
• the cationic charge density of the vinylimidazolium trichloride/vinylpyrrolidone copolymer is more preferably 2.0 meq/g or more, still more preferably 6.5 meq/g or less, and even more preferably 5.0 meq/g or less, more preferably 4.5 meq/g or less.
• the weight average molecular weight is more preferably 20,000 or more, still more preferably 50,000 or more, and still more preferably 150,000 or less.
• a commercially available polymer can also be used as the component (A).
• Lubrizol Advanced Materials, Inc. "MERQUAT 2001 Polymer” (acrylic acid/methyl acrylate/methacrylamidopropyltrimethylammonium chloride copolymer; polyquaternium-47, cationic charge density: 3.21 meq/g, Mw: 1.3 million), "MERQUAT 100" ( Dimethyldiallylammonium chloride polymer; Polyquaternium-6, Cationic charge density: 6.18 meq/g, Mw: 150,000), “MERQUAT 106” (Dimethyldiallylammonium chloride polymer; Polyquaternium-6, Cationic charge density: 6.18 meq / g, Mw: 15,000), "MERQUAT 3940 POLYMER” (acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer liquid; polyquaternium-39, cationic charge density: 2.97 meq/g, Mw: 150,000), " MERQUQUAT 2001
• Component (B) is one or more anionic polymers selected from the group consisting of polyacrylic acid, (meth)acrylic acid/(meth)acrylic acid alkyl ester copolymer, or salts thereof, and component (A ) to form a polyion complex.
• component (B) at least part of the carboxyl groups, which are anionic groups, may be neutralized to form a salt.
• the anion charge density of component (B) is preferably 0.1 meq/g or more, more preferably 0.5 meq/g or more, and still more preferably from the viewpoint of facilitating the formation of a polyion complex through interaction with component (A). is 1.0 meq/g or more, more preferably 2.0 meq/g or more, and from the viewpoint of composition stability, preferably 30 meq/g or less, more preferably 20 meq/g or less, and even more preferably 15 meq/g g or less.
• the anion charge density of component (B) is preferably 0.1 meq/g or more and 30 meq/g or less, more preferably 0.5 meq/g or more and 30 meq/g or less, still more preferably 1.0 meq/g or more and 20 meq/g. g or less, more preferably 2.0 meq/g or more and 15 meq/g or less.
• the anionic charge density of component (B) can be calculated from (number of moles of anionic groups contained per 1 g of polymer) ⁇ 1000 (meq/g). When at least part of the anionic groups in component (B) are neutralized salts, the number of moles of the anionic groups includes the number of moles of the anionic groups in the salt state.
• the hair cosmetic composition may use two or more polymers as the component (B), and the anionic charge density of the component (B) in this case is a weighted average obtained from the anionic charge density of each polymer and the blending amount. It is obtained by calculating
• the weight-average molecular weight (Mw) of the component (B) is such that polyion complex formation is facilitated, composition stability is improved, touch feeling is improved when applied to hair when used as a hair cosmetic composition, and high From the viewpoint of suppressing hair spreading under humidity conditions, it is 3,000 or more, preferably 5,000 or more, more preferably 10,000 or more, and 50,000 or less, preferably 40,000 or less, more preferably is less than or equal to 30,000.
• the weight average molecular weight (Mw) of component (B) is 3,000 or more and 50,000 or less, preferably 5,000 or more and 40,000 or less, more preferably 10,000 or more and 30,000 or less. .
• the weight average molecular weight of component (B) can be measured by gel permeation chromatography (GPC).
• the content of the polymer having a molecular weight of 200,000 or more determined from the molecular weight distribution curve in GPC measurement in the component (B) is used as the ease of forming a polyion complex, the stability of the composition, and the hair cosmetic composition. From the viewpoint of improving the feel of the hair when applied to the hair and suppressing the spread of the hair under high humidity conditions, it is preferably 2% by mass or less, more preferably 1.5% by mass or less, and still more preferably 1.5% by mass. % by mass or less, and more preferably substantially 0% by mass.
• Examples of (meth)acrylic acid/(meth)acrylic acid alkyl ester copolymers used as component (B) include (acrylic acid/octyl acrylate) copolymers and (acrylic acid/stearyl acrylate) copolymers. and copolymers of (meth)acrylic acid and (meth)acrylic acid alkyl esters having an alkyl group having 1 to 24 carbon atoms, preferably 8 to 22 carbon atoms.
• component (B) can be used alone or in combination of two or more.
• component (B) is preferably used from the viewpoints of ease of forming a polyion complex, stability of the composition, improvement of feel when applied to hair, and suppression of spread of hair under high humidity conditions. It is one or more selected from the group consisting of polyacrylic acid, (acrylic acid/stearyl acrylate) copolymers, and salts thereof.
• a commercially available polymer can also be used as the component (B).
• Specific examples include "Acusol 445G Polymer” (sodium polyacrylate) manufactured by The Dow Chemical Company and “Softcare SA-37W” ((acrylic acid/stearyl acrylate) copolymer manufactured by Kao Corporation. union), Mitsubishi Chemical Corporation “Diahold” ((meth)acrylic acid/(meth)acrylic acid alkyl ester copolymer), and the like.
• Component (C) one or more modified silicones selected from the group consisting of amino-modified silicones and aminopolyether-modified silicones
• Component (C) is one or more modified silicones selected from the group consisting of amino-modified silicones (hereinafter also referred to as “component (C1)”) and aminopolyether-modified silicones (hereinafter also referred to as “component (C2)”). be.
• component (C1) amino-modified silicones
• component (C2) aminopolyether-modified silicones
• amino-modified silicone means silicone having an amino group and not having a polyether structure.
• component (C1) include amino-modified silicones represented by the following general formula (I). [In the formula, each R 21 independently represents a methyl group or a hydroxy group, and each R 22 independently represents an alkyl group having 1 to 30 carbon atoms, a hydroxy group, or R 23 .
• R 23 is -R 24 -Z 1 (R 24 is a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, and Z 1 is a primary to tertiary amino group-containing group or an ammonium group-containing group; ) represents a monovalent group represented by a represents a number of 0 or more and 3000 or less, and b represents a number of 1 or more and 3000 or less. ]
• R 21 is preferably a methyl group and R 22 is preferably a methyl group or R 23 .
• R 23 is a monovalent group represented by —R 24 —Z 1
• R 24 is preferably a divalent hydrocarbon group having 1 to 20 carbon atoms, more preferably alkylene having 1 to 20 carbon atoms more preferably a linear or branched alkylene group having 1 to 6 carbon atoms, more preferably a methylene group, an ethylene group, a trimethylene group, a propylene group, a tetramethylene group, or a hexamethylene group, still more preferably a trimethylene group or a propylene group;
• Z 1 is a primary to tertiary amino group-containing group or an ammonium group-containing group, and is —N(R 25 ) 2 , —NR 25 (CH 2 ) c N(R 26 ) 2 , or —NR 25 (CH 2 );
• R 25 and R 26 each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, preferably a hydrogen atom or a methyl group.
• R 27 represents an alkyl group having 1 to 3 carbon atoms.
• c represents a number of 1 or more and 6 or less, preferably 2 or more and 4 or less.
• R 23 is preferably -(CH 2 ) 3 -NH 2 , -(CH 2 ) 3 -N(CH 3 ) 2 , -(CH 2 ) 3 -NH-(CH 2 ) 2 -NH 2 or -(CH 2 ) 2 -NH-(CH 2 ) 2 -N(CH 3 ) 2 , more preferably -(CH 2 ) 3 -NH 2 or -(CH 2 ) 3 —NH—(CH 2 ) 2 —NH 2 .
• the amino-modified silicone represented by general formula (I) includes one or more selected from the group consisting of amodimethicone, aminopropyldimethicone, bis(aminopropyl)dimethicone, and bis(cetearyl)amodimethicone. More specifically, these are amino-modified silicones represented by any of the following general formulas (Ia) to (Id). [In the formula, a, b, c and R 24 are the same as defined above. ] Component (C1) can be used alone or in combination of two or more. From the viewpoint of further improving the effect of suppressing hair spreading under high humidity conditions, the amino-modified silicone (amodimethicone) represented by the general formula (Ia) is more preferable as the component (C1).
• the kinematic viscosity at 25° C. of component (C1) is preferably 20 mm 2 /s or more, more preferably 100 mm 2 /s or more, still more preferably 500 mm, from the viewpoint of further improving the effect of suppressing hair spreading under high humidity conditions. 2 /s or more, preferably 10,000 mm 2 /s or less, more preferably 5,000 mm 2 /s or less, still more preferably 2,000 mm 2 /s or less.
• the kinematic viscosity of component (C1) is a value measured at 25° C. in accordance with JIS Z8803:2011, “Liquid Viscosity Measurement Method” or ASTM D 445-46T. It can be measured using a viscometer.
• a commercially available amino-modified silicone can also be used as the component (C1).
• Examples of amino-modified silicone (amodimethicone) represented by general formula (Ia) include "Silicone SF 8457 C” manufactured by Dow Toray Industries, Inc.
• aminopolyether-modified silicone means silicone having an amino group and a polyether structure.
• the polyether structure in component (C2) is preferably a polyoxyalkylene group from the viewpoint of the effect of suppressing hair spread under high humidity conditions and from the viewpoint of availability. From the viewpoint of further improving the effect of suppressing hair spreading under high humidity conditions, the component (C2) has a silicon atom number of Si in the component (C2) and an average number of moles of alkylene oxide added to the component (C2) of AO.
• Si/AO is preferably 0.05 or more, more preferably 0.1 or more, still more preferably 0.3 or more, still more preferably 0.5 or more, still more preferably 0.7 or more, and It is preferably 3.0 or less, more preferably 2.8 or less, even more preferably 2.6 or less, and even more preferably 2.4 or less.
• the Si/AO ratio of component (C2) is preferably 0.05 or more and 3.0 or less, more preferably 0.1 or more and 2.8 or less, still more preferably 0.3 or more and 2.8 or less, and even more preferably is 0.5 or more and 2.6 or less, more preferably 0.7 or more and 2.4 or less.
• Si/AO can be calculated from the integrated value of H of a silicon-bonded hydrogen atom and a hydrocarbon group and the integrated value of H of an oxyalkylene group, which are measured by 1 H-NMR measurement. It can be measured by the method described in the example.
• Component (C2) has a nitrogen content of preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0, from the viewpoint of further improving the effect of suppressing hair spread under high humidity conditions. .5% by mass or more, more preferably 1.0% by mass or more, preferably 2.5% by mass or less, more preferably 2.0% by mass or less, even more preferably 1.8% by mass or less, and even more Preferably, it is 1.5% by mass or less.
• the nitrogen content of component (C2) is preferably 0.1% by mass or more and 2.5% by mass or less, more preferably 0.2% by mass or more and 2.0% by mass or less, and still more preferably 0.5% by mass.
• the nitrogen content of component (C2) is a value measured according to the potentiometric titration method specified in JIS K0113:2005.
• Component (C2) is preferably an aminopolyether-modified silicone represented by the following general formula (II).
• R 31 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms.
• R 32 represents either R 31 or E; E is -R 33 -Z 2 (R 33 is a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, Z 2 is a primary to tertiary amino group-containing group or an ammonium group-containing group ) represents a monovalent group.
• Y represents an alkylene group having 1 to 6 carbon atoms.
• d is a number of 2 or more
• e is a number of 1 or more
• f is a number of 2 or more and 100 or less
• g is a number of 1 or more
• m represents a number of 2 or more and 10 or less.
• the order of bonding between structural units in parentheses does not matter, and the form of bonding may be block or random.
• f C m H 2m O may be the same or different.
• a plurality of R 31 , R 32 , E and Y may be the same or different.
• the component (C2) is an aminopolyether-modified silicone represented by the general formula (II)
• the Si/AO is represented by (d+e+1)/f.
• R 31 is a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms, preferably a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group, more preferably is a methyl group or an ethyl group, more preferably a methyl group.
• R 32 represents either R 31 or E; E represents a monovalent group represented by -R 33 -Z 2 (R 33 represents a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms).
• R 33 is preferably a divalent hydrocarbon group having 1 to 20 carbon atoms, more preferably an alkylene group having 1 to 20 carbon atoms, more preferably a linear or branched alkylene group having 1 to 6 carbon atoms. , more preferably methylene group, ethylene group, trimethylene group, propylene group, tetramethylene group or hexamethylene group, still more preferably trimethylene group or propylene group.
• Z 2 is a primary to tertiary amino group-containing group or an ammonium group-containing group, and is —N(R 34 ) 2 , —NR 34 (CH 2 ) hN (R 34 ) 2 , or —NR 34 (CH 2 ); It is preferably an amino group-containing group represented by hN (R 35 )CO--R 36 .
• R 34 and R 35 each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, preferably a hydrogen atom or a methyl group.
• R 36 represents an alkyl group having 1 to 3 carbon atoms.
• h represents a number of 1 or more and 6 or less, preferably 2 or more and 4 or less.
• preferred E groups are -(CH 2 ) 3 -NH 2 , -(CH 2 ) 3 -N(CH 3 ) 2 , -(CH 2 ) 3 -NH-(CH 2 ) 2 -NH 2 or -(CH 2 ) 2 -NH-(CH 2 ) 2 -N(CH 3 ) 2 , more preferably -(CH 2 ) 3 -NH-(CH 2 ) 2 -NH 2 is.
• Y is an alkylene group having 1 to 6 carbon atoms, preferably an ethylene group, propylene group, trimethylene group, n-butylene group (tetramethylene group) or i-butylene group, n-butylene or an i-butylene group are more preferred.
• the i-butylene groups referred to herein include -CH(CH 3 )CH 2 CH 2 -, -CH 2 CH(CH 3 )CH 2 -, and -CH 2 CH 2 CH(CH 3 )-.
• d is a number of 2 or more
• e is a number of 1 or more
• f is a number of 2 or more and 100 or less
• g is a number of 1 or more.
• d is preferably a number of 2 or more and 1000 or less, more preferably a number of 2 or more and 100 or less.
• e is preferably a number of 1 or more and 50 or less
• f is a number of preferably 4 or more and 50 or less, more preferably a number of 10 or more and 18 or less
• g is preferably a number of 1 or more and 100 or less.
• m represents a number of 2 or more and 10 or less, preferably 2 or more and 6 or less, more preferably 2 or more and 4 or less.
• Component (C2) is more preferably an aminopolyether-modified silicone represented by the following general formula (IIa). [In formula (IIa), d to g are the same as above. ]
• the kinematic viscosity of component (C2) at 25°C is preferably 5,000 mm 2 /s or more, more preferably 20,000 mm 2 /s or more, from the viewpoint of further improving the effect of suppressing hair spreading under high humidity conditions. It is more preferably 40,000 mm 2 /s or more, more preferably 200,000 mm 2 /s or less, more preferably 150,000 mm 2 /s or less, still more preferably 100,000 mm 2 /s or less.
• the kinematic viscosity of component (C2) at 25°C is preferably 5,000 mm 2 /s or more and 200,000 mm 2 /s or less, more preferably 20,000 mm 2 /s or more and 150,000 mm 2 /s or less, and further It is preferably 40,000 mm 2 /s or more and 100,000 mm 2 /s or less.
• the kinematic viscosity of component (C2) can be measured by the same method as for component (C1).
• a commercially available aminopolyether-modified silicone can also be used as the component (C2).
• Component (C) can be used alone or in combination of two or more.
• the component (C) is preferably the amino-modified silicone represented by the general formula (I) and the general formula (II) from the viewpoint of further improving the effect of suppressing the spread of hair under high humidity conditions.
• ) is one or more selected from the group consisting of aminopolyether-modified silicones represented by the general formula (Ia), more preferably the amino-modified silicone represented by the general formula (Ia) and the general formula (IIa). It is one or more selected from the group consisting of aminopolyether-modified silicones.
• Optional components other than components (A) to (C) can also be added to the hair cosmetic composition.
• the hair cosmetic composition preferably further contains an organic acid and water.
• a cationic It preferably contains one or more selected from the group consisting of surfactants, higher alcohols, non-aromatic polyols, and oil agents, and more preferably contains all of them.
• organic acid contributes to stably forming a polyion complex in the hair cosmetic composition.
• examples of the organic acid include carboxylic acid compounds and sulfonic acid compounds other than the component (B), preferably compounds having a molecular weight of 500 or less, more preferably 200 or less.
• carboxylic acid compounds include aliphatic monocarboxylic acids having 4 or less carbon atoms such as acetic acid, propionic acid, and butanoic acid; aromatic monocarboxylic acids such as benzoic acid; malonic acid, succinic acid, glutaric acid, and adipine.
• acids aliphatic dicarboxylic acids such as maleic acid and fumaric acid; aromatic dicarboxylic acids such as phthalic acid and isophthalic acid; polycarboxylic acids such as polyglutamic acid; lactic acid, malic acid, glycolic acid, hydroxyacrylic acid, glyceric acid, tartaric acid , hydroxycarboxylic acids such as citric acid; acidic amino acids such as glutamic acid and aspartic acid; and the like, and one or more of these can be used.
• sulfonic acid compounds include aliphatic sulfonic acids such as methanesulfonic acid and ethanesulfonic acid; aromatic sulfonic acids such as p-toluenesulfonic acid and naphthalenesulfonic acid; The above can be used.
• the organic acid is preferably aliphatic dicarboxylic acid, hydroxycarboxylic acid, and aromatic sulfonic acids, more preferably one or more selected from the group consisting of succinic acid, lactic acid, malic acid, glycolic acid, p-toluenesulfonic acid, and naphthalenesulfonic acid , more preferably one or more selected from the group consisting of succinic acid and lactic acid, and still more preferably lactic acid. At least a part of the organic acid may be in the form of an organic acid salt at the time of blending.
• the salt of the organic acid is preferably an alkali metal salt or an alkali metal salt of an organic acid, more preferably an alkali metal salt, and sodium salt and potassium salt, from the viewpoint of use in hair cosmetic compositions and the like and from the viewpoint of easy availability.
• One or more selected from the group consisting of is more preferable, and sodium salt is still more preferable.
• the ratio of the organic acid salt in the total amount of the organic acid and the organic acid salt is the ease of formation of the polyion complex, the stability of the composition, the improvement of the feel when applied to the hair, and the spread of the hair under high humidity conditions.
• the organic acid salt ratio (% by mass) as used herein means the mass % in terms of the organic acid.
• water Deionized water or distilled water is preferable as the water used in the hair cosmetic composition.
• tap water, underground water, etc. sterilized with hypochlorous acid or the like may be used as long as the stability of the composition is not impaired.
• the hair cosmetic composition preferably further contains a cationic surfactant as component (D) from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment.
• Cationic surfactants include (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium salts, (iii) dialkyldimethylammonium salts, (iv) alkylamidoalkyltrimethylammonium salts, (v) alkyldimethylamines and salts thereof, (vi) alkoxyalkyldimethylamine and its salts, and (vii) alkylamidoalkyldimethylamine and its salts, and the like.
• Alkyltrimethylammonium salts include alkyltrimethylammonium salts having an alkyl group preferably having 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms, specifically cetyltrimethylammonium chloride. (cetrimonium chloride), stearyltrimethylammonium chloride (steartrimonium chloride), behenyltrimethylammonium chloride (behentrimonium chloride) and the like.
• Examples of alkoxyalkyltrimethylammonium salts include alkoxyalkyltrimethylammonium salts having an alkoxy group preferably having 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms.
• dialkyldimethylammonium salts examples include dialkyldimethylammonium salts having an alkyl group having preferably 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms, specifically distearyldimethylammonium. chloride and the like.
• alkylamidoalkyltrimethylammonium salts include alkylamidoalkyltrimethylammonium salts in which the number of alkyl carbon atoms in the alkylamide moiety is preferably 11 or more and 21 or less, more preferably 13 or more and 19 or less. includes palmitamidopropyltrimethylammonium chloride (palmitamidopropyltrimonium chloride) and the like.
• the (v) alkyl group in the alkyldimethylamine and its salt and the (vi) alkoxy group in the alkoxyalkyldimethylamine and its salt preferably have 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms.
• the number of alkyl carbon atoms in the alkylamide moiety in the alkylamidoalkyldimethylamine and its salt is preferably 11 or more and 21 or less, more preferably 15 or more and 19 or less.
• the amines (v) to (vii) may be preliminarily reacted with an acid and blended into the hair cosmetic composition as a salt, or may be directly blended into the hair cosmetic composition as an amine, and further added to the hair cosmetic composition. Salts may be formed in the composition by incorporating an acid into the composition. Therefore, the above amines and salts thereof are defined as cationic surfactants here. Moreover, the content or compounding amount thereof is converted by the mass of the above amine. Salts of the amines (v)-(vii) include salts with organic or inorganic acids.
• organic acids include monocarboxylic acids such as acetic acid and propionic acid; dicarboxylic acids such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid and phthalic acid; polycarboxylic acids such as polyglutamic acid; Hydroxycarboxylic acids such as glycolic acid, lactic acid, hydroxyacrylic acid, glyceric acid, malic acid, tartaric acid and citric acid; acidic amino acids such as glutamic acid and aspartic acid; Examples of inorganic acids include hydrochloric acid, sulfuric acid, phosphoric acid and the like.
• organic acids are preferred, and one or more selected from the group consisting of dicarboxylic acids, hydroxycarboxylic acids and acidic amino acids is more preferred. More preferably, the dicarboxylic acid is one or more selected from the group consisting of maleic acid and succinic acid. More preferably, the hydroxycarboxylic acid is one or more selected from the group consisting of glycolic acid, lactic acid and malic acid. Glutamic acid is more preferred as the acidic amino acid.
• Alkyldimethylamines and salts thereof include N,N-dimethylbehenylamine, N,N-dimethylstearylamine, and organic acid salts thereof, and N,N-dimethylbehenylamine lactate, N , N-dimethylstearylamine glycolate and the like are preferred.
• Alkoxyalkyldimethylamines and their salts include N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxypropylamine (stearyloxypropyldimethylamine), and their Examples include organic acid salts, and N,N-dimethyl-3-hexadecyloxypropylamine or its lactate salt, N,N-dimethyl-3-octadecyloxypropylamine (stearyloxypropyldimethylamine) or its lactate salt are preferred. .
• alkylamidoalkyldimethylamines and salts thereof include N-[3-(dimethylamino)propyl]docosanamide, N-[3-(dimethylamino)propyl]stearamide, and organic acid salts thereof;
• the lactate salt of N-[3-(dimethylamino)propyl]docosanamide, the glycolate salt of N-[3-(dimethylamino)propyl]stearamide are preferred.
• the component (D) is preferably (i) an alkyltrimethylammonium salt and (ii) an alkoxyalkyltrimethylammonium, from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment.
• alkylamidoalkyldimethyl One or more selected from the group consisting of amines and salts thereof, more preferably selected from the group consisting of (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium and (v) alkyldimethylamines and salts thereof more preferably behenyltrimethylammonium chloride, stearoxypropyltrimethylammonium chloride, stearoxyethyltrimethylammonium chloride, stearoxyhydroxypropyltrimethylammonium chloride, N,N-dimethyl-3-hexadecyloxypropylamine or its One or more selected from the group consisting of amines and salts thereof, more preferably selected from the group consisting of (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium and (v) alkyldimethylamines and salts thereof more preferably behenyltrimethylammonium
• the hair cosmetic composition preferably further contains a higher alcohol as component (E) from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment.
• higher alcohols include aliphatic monohydric alcohols having 12 or more carbon atoms, preferably 12 or more and 22 or less carbon atoms.
• the higher alcohol includes one or more selected from the group consisting of lauryl alcohol, cetyl alcohol, myristyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol, behenyl alcohol, and cetostearyl alcohol. .
• one or more selected from the group consisting of cetyl alcohol, myristyl alcohol, stearyl alcohol, and behenyl alcohol is preferable from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment.
• Component (F) non-aromatic polyol
• the hair cosmetic composition further contains a non-aromatic polyol as a component (F) from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment, and from the viewpoint of improving the moisturizing property. is preferred.
• Non-aromatic polyols used as component (F) include low-molecular-weight diols and triols having 6 or less carbon atoms, such as 1,3-butylene glycol, glycerin, ethylene glycol, propylene glycol and dipropylene glycol. These can use 1 type(s) or 2 or more types.
• it is preferably selected from the group consisting of 1,3-butylene glycol and dipropylene glycol from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment, and from the viewpoint of improving moisturizing properties.
• 1,3-butylene glycol and dipropylene glycol from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment, and from the viewpoint of improving moisturizing properties.
• One or more, more preferably dipropylene glycol.
• Component (G) oil
• the hair cosmetic composition further contains an oil agent other than component (C) and component (E) as component (G) from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment.
• Oils include (a) silicone oils, (b) ester oils, (c) ether oils, (d) hydrocarbon oils, (e) higher fatty acids, and (f) waxes. Or 2 or more types can be used.
• silicone oil one selected from the group consisting of dimethylpolysiloxane (dimethicone), dimethiconol (dimethylpolysiloxane having a terminal hydroxy group), methylphenylpolysiloxane, and modified silicones other than component (C).
• modified silicones other than component (C) include polyether-modified silicones, glyceryl-modified silicones, carboxy-modified silicones, fatty acid-modified silicones, alcohol-modified silicones, aliphatic alcohol-modified silicones, epoxy-modified silicones, fluorine-modified silicones, alkyl-modified silicones, and the like. are mentioned.
• silicone oils include dimethylpolysiloxane, dimethiconol, methylphenylpolysiloxane, and component (C), from the viewpoint of further improving the feel when applied to the hair and the feel of the hair after treatment.
• One or more selected from the group consisting of modified silicones other than dimethylpolysiloxane is preferable, one or more selected from the group consisting of dimethylpolysiloxane, dimethiconol, and polyether-modified silicone is more preferable, and dimethylpolysiloxane is even more preferable.
• Ester oils include synthetic ester oils, natural oils and fats, and Esters with monohydric alcohols are mentioned.
• Esters of monohydric carboxylic acids and monohydric alcohols include esters represented by the following general formula (1).
• R 1 -COO-R 2 (1)
• R 1 may be substituted with a hydroxyl group, and may be a linear or branched alkyl group or alkenyl group having 1 to 25 carbon atoms, or an aromatic-containing group having 6 to 24 carbon atoms. represents a hydrocarbon group, and R 2 represents a linear or branched alkyl or alkenyl group having 1 to 30 carbon atoms;
• R 1 is an alkyl or alkenyl group
• the number of carbon atoms is preferably 7 or more, and preferably 23 or less, more preferably 21 or less, even more preferably 19 or less, and even more preferably 17 or less.
• R 1 is an aromatic-containing hydrocarbon group
• the number of carbon atoms is preferably 6 or more and preferably 22 or less, more preferably 20 or less.
• the number of carbon atoms in R 2 is preferably 2 or more, and preferably 28 or less, more preferably 24 or less, still more preferably 20 or less. More preferably, in general formula (1), R 1 is a linear or branched alkyl group having 7 to 17 carbon atoms, and R 2 is a linear or branched alkyl group having 2 to 24 carbon atoms. is an ester.
• esters represented by formula (1) include cetyl isooctanoate, stearyl isooctanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, and myristine.
• Decyl acid isotridecyl myristate, isocetyl myristate, isostearyl myristate, 2-octyldodecyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, isostearyl palmitate, 2-hexyldecyl palmitate, 2-ethylhexyl stearate , 2-hexyldecyl stearate, isopropyl isostearate, 2-hexyldecyl isostearate, ethyl oleate, isodecyl oleate, oleyl oleate, octyldodecyl oleate, ethyl linoleate, isopropyl linoleate, lanolin acetate, castor oil fatty acid One or more selected from the group consisting of methyl (methyl ricinoleate) and alky
• Esters of monohydric carboxylic acids and monohydric alcohols also include esters represented by the following general formula (2).
• R 3 represents a linear or branched alkyl group or alkenyl group optionally substituted with a hydroxyl group and having 1 to 25 carbon atoms
• R 4 represents 6 to 24 carbon atoms.
• AO represents an alkyleneoxy group having 2 or more and 4 or less carbon atoms
• n represents an average addition mole number of 1 or more and 50 or less.
• R 3 is an alkyl group preferably having 7 or more carbon atoms and preferably 23 or less, more preferably 21 or less, and even more preferably 19 or less.
• R 4 is preferably an aromatic-containing hydrocarbon group having 6 or more carbon atoms and preferably 22 or less, more preferably 20 or less, still more preferably 18 or less, and even more preferably a benzyl group.
• the AO group is preferably a propyleneoxy group, and n is preferably 1 or more and 10 or less, more preferably 1 or more and 5 or less.
• ester represented by the general formula (2) examples include an ester of myristic acid and a 3-mol adduct of propylene oxide of benzyl alcohol (“Crodamol STS” manufactured by Croda), and an ester of 2-ethylhexanoic acid and benzyl alcohol.
• An ester with a propylene oxide 3-mol adduct (“Crodamol SFX” manufactured by Croda) and the like can be mentioned.
• Esters of monohydric carboxylic acids and polyhydric alcohols include esters represented by the following general formula (3).
• R 5 represents a polyhydric alcohol residue, preferably a hydrocarbon group having 2 to 10 carbon atoms
• R 6 represents a monovalent carboxylic acid residue having 1 to 25 carbon atoms.
• p is an integer of 2 or more and 10 or less.
• R 5 may have an ether bond, it is preferably a straight or branched hydrocarbon group having 2 to 10 carbon atoms.
• p is the same number as the hydroxy group which the said polyhydric alcohol has.
• R 6 preferably has 7 or more carbon atoms, and is an alkyl group having preferably 23 or less, more preferably 21 or less, and still more preferably 19 or less from the same viewpoint as above. Still more preferably, in general formula (3), an ester in which R 5 is a glycerin residue or a pentaerythritol residue and R 6 is an alkyl group having 7 to 19 carbon atoms.
• ester represented by the general formula (3) examples include propylene glycol dicaprate, propylene glycol dioleate, neopentyl glycol dicaprate, neopentyl glycol di-2-ethylhexanoate, and di(caprylic acid/capric acid).
• natural fats and oils include triglycerides such as avocado oil, olive oil, sesame oil, rice bran oil, safflower oil, soybean oil, corn oil, rapeseed oil, castor oil, cottonseed oil and mink oil.
• triglycerides such as avocado oil, olive oil, sesame oil, rice bran oil, safflower oil, soybean oil, corn oil, rapeseed oil, castor oil, cottonseed oil and mink oil.
• Esters of polyhydric carboxylic acids and monohydric alcohols also include esters represented by the following general formula (4).
• R7- ( COOR8 ) q (4) R 7 is a polycarboxylic acid residue having 2 to 10 carbon atoms
• R 8 represents a monohydric alcohol residue having 1 to 24 carbon atoms
• q is 2 to 10. is an integer of Moreover, q is the same number as the carboxy group which the said polyhydric carboxylic acid has.
• R 8 preferably has 3 or more carbon atoms, more preferably 6 or more carbon atoms, and is preferably 22 or less, more preferably 20 or less, and still more preferably 18 or less from the same viewpoint as described above. Still more preferably, in general formula (4), it is an ester in which R 7 is a trimellitic acid residue and R 8 is a branched alkyl group having 6 or more and 18 or less carbon atoms.
• esters represented by formula (4) include diisostearyl malate, di-2-ethylhexyl succinate, diisobutyl adipate, di-2-heptylundecyl adipate, di-2-ethylhexyl sebacate, and sebacin. diisopropyl acid, tri-2-ethylhexyl trimellitate, and the like.
• an ester of a monohydric carboxylic acid and a monohydric alcohol represented by the general formula (1) is preferable from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment
• Ether oils include dialkyl ether compounds represented by the following general formula (5) and polyoxyalkylene alkyl ether compounds represented by the following general formula (6).
• R9 - OR10 (5) In general formula (5), R 9 and R 10 each independently represent a linear or branched alkyl group or alkenyl group having 6 to 22 carbon atoms, or an aromatic hydrocarbon group having 6 to 24 carbon atoms. indicate. R 9 and R 10 are preferably alkyl groups, preferably having 8 or more carbon atoms, from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment. It is 18 or less, more preferably 16 or less, still more preferably 12 or less.
• R 11 O—(PO)r(EO)s—H (6)
• R 11 represents an alkyl or alkenyl group having 6 to 22 carbon atoms
• PO represents a propyleneoxy group
• EO represents an ethyleneoxy group.
• r indicates an average addition mole number of 0.1 or more and 15 or less
• s indicates an average addition mole number of 0 or more and 10 or less. If s is non-zero, the addition form of PO and EO can be random or block.
• the number of carbon atoms in R 11 is preferably 8 or more, and preferably 20 or less, more preferably 18 or less, still more preferably 12 or less.
• the average added mole number r is preferably 1 or more, more preferably 2 or more, still more preferably 3 or more, from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment, and It is preferably 13 or less, more preferably 10 or less, and the average addition mole number s is preferably 5 or less, more preferably 1 or less, and still more preferably 0.
• Examples of the polyoxyalkylene alkyl ether compound represented by the general formula (6) include polypropylene glycol, polyoxypropylene octyl ether and polyoxypropylene decyl ether having an average addition mole number r of 3 or more and 10 or less of the propyleneoxy group, and one or more selected from the group consisting of polyoxypropylene lauryl ether.
• Hydrocarbon oils include squalene, squalane, liquid paraffin, liquid isoparaffin, isohexadecane, isoeicosane, hydrogenated polyisobutene, light liquid isoparaffin, heavy liquid isoparaffin, ⁇ -olefin oligomer, and cycloparaffin.
• Higher fatty acids include fatty acids having 8 or more carbon atoms, preferably 12 or more carbon atoms, such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, and coconut oil. fatty acids, lanolin fatty acids, isostearic acid, isopalmitic acid and the like.
• Waxes include beeswax, whale wax, lanolin, and carnauba wax.
• component (G) One or more of the above oils can be used as component (G).
• (a) silicone oil, (b) ester oil, (d) hydrocarbon oil, and (e) are preferable.
• one or more selected from the group consisting of higher fatty acids more preferably one or more selected from the group consisting of (a) silicone oil and (e) higher fatty acids, still more preferably dimethylpolysiloxane , dimethiconol, methylphenylpolysiloxane, modified silicone other than component (C), and one or more selected from the group consisting of fatty acids having 12 or more carbon atoms, more preferably dimethylpolysiloxane, dimethiconol, poly One or more selected from the group consisting of ether-modified silicone, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, lanolin fatty acid, isostearic acid, and isopalmitic acid. more preferably one or more selected from the group consisting of dimethylpolysiloxane and lanolin fatty acid, and still more preferably dimethylpolysiloxane and lan
• the content or blending amount of each component in the hair cosmetic composition is preferably as follows from the viewpoints of stability of the composition, improvement of feel when applied to hair, and suppression of hair spreading under high humidity conditions. is as follows.
• the content of component (A) in the hair cosmetic composition is determined from the viewpoints of ease of formation of a polyion complex, improvement of feel when applied to hair, and suppression of spread of hair under high humidity conditions. It is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and still more preferably 0.03% by mass or more. From the viewpoint of improving the emulsified state, the content is preferably less than 0.50% by mass, more preferably 0.30% by mass or less, and even more preferably 0.20% by mass or less.
• the content of component (A) in the hair cosmetic composition is preferably 0.01% by mass or more and less than 0.50% by mass, more preferably 0.02% by mass or more and 0.30% by mass or less. It is preferably 0.03% by mass or more and 0.20% by mass or less.
• the content of the component (B) in the hair cosmetic composition is determined from the viewpoints of ease of formation of polyion complexes, improvement of feel when applied to hair, and suppression of spread of hair under high humidity conditions. It is preferably 0.01% by mass or more, more preferably 0.015% by mass or more. Also, from the viewpoint of improving the emulsified state, it is preferably less than 0.50% by mass, more preferably 0.30% by mass or less, still more preferably 0.20% by mass or less, and even more preferably 0.10% by mass. It is below.
• the content of component (B) in the hair cosmetic composition is preferably 0.01% by mass or more and less than 0.50% by mass, more preferably 0.01% by mass or more and 0.30% by mass or less. It is preferably 0.01% by mass or more and 0.20% by mass or less, and more preferably 0.015% by mass or more and 0.10% by mass or less.
• the total content of component (A) and component (B) in the hair cosmetic composition is less than 1.0% by mass, preferably 0.9% by mass or less, and more It is preferably 0.5% by mass or less, more preferably 0.3% by mass or less.
• it is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, and still more preferably 0.05% by mass or more. is.
• the total content of component (A) and component (B) in the hair cosmetic composition is less than 1.0% by mass, preferably 0.01% by mass or more and 0.9% by mass or less, more preferably is 0.03% by mass or more and 0.9% by mass or less, more preferably 0.05% by mass or more and 0.9% by mass or less, even more preferably 0.05% by mass or more and 0.5% by mass or less, still more preferably is 0.05% by mass or more and 0.3% by mass or less.
• the ratio of the number of moles of cationic charges in the component (A) to the number of moles of the anionic charges in the component (B) in the hair cosmetic composition is determined from the viewpoint of improving the emulsified state and improving the feeling when applied to the hair. From the viewpoint, preferably 5/95 to 95/5, more preferably 10/90 to 90/10, still more preferably 20/80 to 80/20, still more preferably 20/80 to 60/40, still more preferably is an amount that is 40/60 to 60/40.
• the content of component (C) in the hair cosmetic composition is preferably 0.03% by mass or more, from the viewpoint of improving the feel of the hair when applied to the hair and suppressing the spread of the hair under high humidity conditions. is 0.05% by mass or more, more preferably 0.1% by mass or more. In addition, from the viewpoint of improving the emulsified state, the be.
• the content of component (C) in the hair cosmetic composition is 0.03% by mass or more, preferably 0.03% by mass or more and 5.0% by mass or less, more preferably 0.05% by mass. 5.0% by mass or less, more preferably 0.05% by mass or more and 2.0% by mass or less, still more preferably 0.1% by mass or more and 1.0% by mass or less, still more preferably 0.1% by mass It is more than 0.5 mass % or less.
• the mass ratio of the total content of component (A) and component (B) to the content of component (C) in the hair cosmetic composition [ ⁇ (A) + (B) ⁇ /(C)] is From the viewpoint of improving the feeling when applied to hair and suppressing the spread of hair under high humidity conditions, it is preferably 0.01 or more, more preferably 0.05 or more, still more preferably 0.10 or more, and still more preferably 0.20 or more, and from the viewpoint of improving the emulsified state, it is preferably 5.0 or less, more preferably 3.0 or less, even more preferably 2.0 or less, and even more preferably 1.5 or less. .
• the mass ratio [ ⁇ (A) + (B) ⁇ /(C)] of the total content of component (A) and component (B) to the content of component (C) in the hair cosmetic composition is , preferably 0.01 or more and 5.0 or less, more preferably 0.05 or more and 3.0 or less, still more preferably 0.10 or more and 2.0 or less, still more preferably 0.20 or more and 1.5 or less .
• the content of the organic acid in the hair cosmetic composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, from the viewpoint of facilitating the formation of a polyion complex.
• the organic acid content in the hair cosmetic composition is preferably 0.01% by mass or more and 5.0% by mass or less, more preferably 0.02% by mass or more and 3.0% by mass or less, and still more preferably 0.03% by mass or more and 3.0% by mass or less, more preferably 0.05% by mass or more and 3.0% by mass or less, still more preferably 0.1% by mass or more and 2.0% by mass or less, still more preferably is 0.1% by mass or more and 1.5% by mass or less, more preferably 0.2% by mass or more and 1.5% by mass or less, and even more preferably 0.3% by mass or more and 1.5% by mass or less.
• the component (D) in the hair cosmetic composition is any of (v) alkyldimethylamine and its salts, (vi) alkoxyalkyldimethylamine and its salts, and (vii) alkylamidoalkyldimethylamine and its salts.
• the content of the organic acid in the hair cosmetic composition may be an amount exceeding 5.0% by mass. This is because the presence of the organic acid as a counter anion of the amine is expected to improve the stability of the hair cosmetic composition and improve the feel of the hair when applied to the hair.
• the above content is the amount in terms of the organic acid.
• the water content in the hair cosmetic composition is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 20% by mass or more, from the viewpoint of ease of formation of the polyion complex and from the viewpoint of improving the emulsified state. is 30% by mass or more. From the viewpoint of stability of the composition and flexibility in blending, the content is preferably 99% by mass or less, more preferably 95% by mass or less, and even more preferably 92% by mass or less.
• the water content in the hair cosmetic composition is preferably 10% by mass or more and 99% by mass or less, more preferably 20% by mass or more and 95% by mass or less, and still more preferably 30% by mass or more and 92% by mass or less. be.
• Component (D) When a cationic surfactant is used, the content of component (D) in the hair cosmetic composition is from the viewpoint of further improving the feel of the hair when applied and the feel of the hair after treatment. Therefore, the amount is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more. From the viewpoint of stability of the composition, the content is preferably 10% by mass or less, more preferably 5.0% by mass or less, and even more preferably 3.5% by mass or less.
• the content of component (D) in the hair cosmetic composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 5.0% by mass or less, and still more preferably It is 0.5% by mass or more and 3.5% by mass or less, more preferably 1.0% by mass or more and 3.5% by mass or less.
• Component (E) When a higher alcohol is used, the content of component (E) in the hair cosmetic composition is preferable from the viewpoint of further improving the feel of the hair when applied and the feel of the hair after treatment. is 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more. From the viewpoint of stability of the composition, the amount is preferably 15% by mass or less, more preferably 12% by mass or less, and even more preferably 10% by mass or less.
• the content of component (E) in the hair cosmetic composition is preferably 0.1% by mass or more and 15% by mass or less, more preferably 0.2% by mass or more and 12% by mass or less, and still more preferably 0.2% by mass or more and 12% by mass or less. 5% by mass or more and 12% by mass or less, more preferably 1.0% by mass or more and 10% by mass or less.
• Component (F) When a non-aromatic polyol is used, the content of component (F) in the hair cosmetic composition is from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment. From the viewpoint of improving moisture retention, it is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more. From the viewpoint of stability of the composition, the content is preferably 10% by mass or less, more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less.
• the content of component (F) in the hair cosmetic composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 10% by mass or less, and still more preferably 0.2% by mass or more and 10% by mass or less. 5% by mass or more and 5.0% by mass or less, more preferably 1.0% by mass or more and 3.0% by mass or less.
• Component (G) When an oil is used, the content of component (G) in the hair cosmetic composition is preferably from the viewpoint of further improving the feel of the hair when applied to the hair and the feel of the hair after treatment. It is 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more. In addition, from the viewpoint of improving the feeling of use of the composition, the content is preferably 10% by mass or less, more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less.
• the content of component (G) in the hair cosmetic composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 5.0% by mass or less, and still more preferably It is 0.5% by mass or more and 5.0% by mass or less, more preferably 1.0% by mass or more and 3.0% by mass or less.
• optional ingredients in the hair cosmetic composition include anionic surfactants, nonionic surfactants, amphoteric surfactants, aromatic alcohols, antioxidants, antidandruff agents, vitamins, fungicides, antibacterial agents, Inflammatory agents, preservatives, chelating agents, moisturizing agents, pearl agents, ceramides, fragrances, plant extracts, ultraviolet absorbers, pH adjusters, and the like can be blended.
• the pH of the 5% aqueous solution of the hair cosmetic composition at 25°C is preferably 2.0 or higher, more preferably 3.0 or higher. and is preferably 10.0 or less, more preferably 7.0 or less, and still more preferably 5.0 or less.
• the pH of the 5% aqueous solution of the hair cosmetic composition at 25°C is preferably from 2.0 to 10.0, more preferably from 3.0 to 7.0, still more preferably from 3.0 to 5.0. 0 or less.
• the above pH can be measured by adding water to the hair cosmetic composition to form a 5% aqueous solution at 25° C. using a pH meter.
• the method for producing the hair cosmetic composition is not particularly limited, but when the hair cosmetic composition is an emulsified composition, it has a good feel when applied to the hair and suppresses spreading of the hair under high humidity conditions. From the viewpoint of being able to produce a highly stable hair cosmetic composition, a method comprising the following step (1) and either the following step (2-1) or step (2-2). is preferred.
• Step (1) Step of preparing a mixture A containing component (A), component (B), an organic acid and water Step (2-1) Mixing the mixture A with an oil phase component containing an emulsion-forming component Step (2-2) of preparing an emulsion (I) by mixing an oil phase component containing an emulsion-forming component with an aqueous phase component other than the mixture A to prepare an emulsion (II), and then and the step of mixing the mixture A.
• emulsion-forming component means an oily component for forming an emulsion contained in the emulsified composition.
• aqueous phase component means a component that constitutes the aqueous phase in the production process of the emulsion composition
• oil phase component means a component that constitutes the oil phase in the production process of the emulsion composition.
• Component (C) may be mixed in any step other than step (1). From the viewpoint of preparing a highly stable emulsified composition, component (C) is preferably mixed after step (2-1) or after step (2-2). More preferably, after preparing emulsion (I) in step (2-1), the emulsion (I) and component (C) are mixed, or in step (2-2), emulsion (II ) and mixture A, and then component (C) is mixed.
• Step (1) Preparation step of mixture A>
• the component (A), component (B), organic acid and water are mixed to prepare a mixture A (aqueous phase component) containing component (A), component (B), organic acid and water. do.
• a mixture A containing a polyion complex formed from the component (A) and the component (B) is obtained by performing the step (1).
• the order of mixing component (A), component (B), organic acid and water is not particularly limited.
• component (A), component (B) and organic acid are added to water at the same time. may be mixed together.
• the component (A) and the organic acid are first added to water and mixed, and then the component (B) is added. It is preferable to mix by
• the temperature during mixing in step (1) is not particularly limited, but from the viewpoint of improving the dispersibility of components (A) and component (B) and the ease of forming a polyion complex, it is preferably 40 ° C. or higher, and more. It is preferably 45° C.
• step (1) is preferably 90° C. or lower, more preferably 80° C. or lower, further preferably 70° C. or lower, and even more preferably 65° C. °C or less.
• the temperature during mixing in step (1) is preferably 40° C. or higher and 90° C. or lower, more preferably 45° C. or higher and 80° C. or lower, still more preferably 50° C. or higher and 70° C. or lower, still more preferably 50° C. or higher and 65° C. or higher. °C or less.
• the mixing time in step (1) is not particularly limited, but from the viewpoint of improving the emulsified state, it is preferably 1 minute or more, more preferably 3 minutes or more, and from the viewpoint of productivity, it is preferably 1 hour or less.
• step (1) can be performed using a known emulsifier or stirring device such as a high-pressure emulsifier, an ultrasonic emulsifier, and a homomixer.
• a known emulsifier or stirring device such as a high-pressure emulsifier, an ultrasonic emulsifier, and a homomixer.
• the mixture A obtained in step (1) may be a clear solution, but is preferably in a suspension state.
• the polyion complex formed from the component (A) and the component (B) is not solubilized, and is presumably precipitated and uniformly dispersed in the solution.
• step (2-1) or (2-2) when mixture A exhibiting a suspension state is used in step (2-1) or (2-2), a stable polyion complex state is maintained in the obtained emulsion composition, and the stability of the emulsion composition is improved. It is thought that the feeling when applied to the hair and the effect of suppressing the spread of the hair under high humidity conditions are further improved.
• the amount of the component (A) in the mixture A is determined from the viewpoint of ease of formation of the polyion complex, the improvement of the feel of the resulting composition when applied to the hair, and the suppression of the spread of the hair under high-humidity conditions. , preferably 0.01% by mass or more, more preferably 0.03% by mass or more, and still more preferably 0.05% by mass or more in 100% by mass of the total amount of the mixture A. Also, from the viewpoint of improving the emulsified state, the amount is preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, and even more preferably less than 0.5% by mass. .
• the amount of component (A) in mixture A is preferably 0.01% by mass or more and less than 10% by mass, more preferably 0.03% by mass or more and 5% by mass, based on the total amount of 100% by mass of mixture A. less than, more preferably 0.03% by mass or more and less than 1% by mass, still more preferably 0.05% by mass or more and less than 0.5% by mass.
• the amount of the component (B) in the mixture A is determined from the viewpoint of ease of formation of the polyion complex, the improvement of the texture of the obtained composition when applied to the hair, and the suppression of the spread of the hair under high-humidity conditions. , preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and still more preferably 0.05% by mass or more in 100% by mass of the total amount of the mixture A. Also, from the viewpoint of improving the emulsified state, the amount is preferably less than 5% by mass, more preferably less than 3% by mass, even more preferably less than 1% by mass, and even more preferably less than 0.3% by mass. .
• the amount of component (B) in mixture A is preferably 0.01% by mass or more and less than 5% by mass, more preferably 0.01% by mass or more and 3% by mass, based on the total amount of 100% by mass of mixture A. less than, more preferably 0.02% by mass or more and less than 1% by mass, still more preferably 0.05% by mass or more and less than 0.3% by mass.
• the amount of the organic acid in the mixture A is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, based on 100% by mass of the total amount of the mixture A, from the viewpoint of ease of formation of the polyion complex.
• the amount is preferably 0.05% by mass or more. Further, from the viewpoint of facilitating the preparation of the mixture A in a suspension state, it is preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, and even more preferably 0.75% by mass. %, more preferably less than 0.30 mass %.
• the amount of the organic acid blended in the mixture A is preferably 0.01% by mass or more and less than 10% by mass, more preferably 0.01% by mass or more and less than 5% by mass, based on 100% by mass of the total amount of the mixture A. More preferably 0.03% by mass or more and less than 1% by mass, still more preferably 0.05% by mass or more and less than 0.75% by mass, still more preferably 0.05% by mass or more and less than 0.30% by mass is.
• the amount of organic acid used in the preparation of mixture A in step (1) may be a portion of the organic acid contained in the resulting composition.
• the mass ratio of the total amount of the components (A) and (B) to the amount of the organic acid [(A + B) / organic acid] is from the viewpoint of facilitating the preparation of the mixture A in a suspension state. , preferably 1/0.1 to 1/20, more preferably 1/0.1 to 1/15, from the viewpoint of improving the feeling when applied to the hair, and from the viewpoint of suppressing the spread of the hair under high humidity conditions, More preferably 1/0.20 to 1/10, still more preferably 1/0.20 to 1/8, still more preferably 1/0.22 to 1/4.
• the amount of water in the mixture A is preferably 50% by mass or more, more preferably 60% by mass, based on the total amount of 100% by mass of the mixture A, from the viewpoint of ease of formation of the polyion complex and from the viewpoint of improving the emulsified state. % or more, more preferably 70 mass % or more, still more preferably 80 mass % or more, and preferably 99.97 mass % or less, preferably 99.8 mass % or less.
• the amount of water in the mixture A is preferably 50% by mass or more and 99.97% by mass or less, more preferably 50% by mass or more and 99.8% by mass or less, still more preferably 100% by mass of the total amount of the mixture A.
• the amount is 60% by mass or more and 99.8% by mass or less, more preferably 70% by mass or more and 99.8% by mass or less, and even more preferably 80% by mass or more and 99.8% by mass or less.
• the amount of water used in the preparation of mixture A in step (1) may be part of the water contained in the resulting composition.
• Mixture A may contain components other than component (A), component (B), organic acid and water.
• the total content of component (A), component (B), organic acid and water in the mixture A is preferably 70% by mass or more, more preferably 80% by mass or more, and still more preferably 90% by mass. % by mass or more, more preferably 95% by mass or more and 100% by mass or less.
• the pH of the mixture A at 25°C is preferably 1.5 or higher, more preferably 2.0 or higher, and preferably It is 4.0 or less, more preferably 3.2 or less, and still more preferably 3.0 or less.
• the pH of the mixture A at 25° C. is preferably 1.5 or more and 4.0 or less, more preferably 2.0 or more and 4.0 or less, still more preferably 2.0 or more and 3.2 or less, still more preferably It is 2.0 or more and 3.0 or less.
• the pH of mixture A at 25°C can be measured using a pH meter.
• Step (2)> When the hair cosmetic composition is an emulsified composition, the method for producing the hair cosmetic composition preferably comprises following step (2-1) or step (2-2) after step (1). have any. Thereby, a highly stable emulsified composition containing the polyion complex obtained in step (1) can be produced.
• Step (2-1) Step of mixing the mixture A and an oil phase component containing an emulsion-forming component to prepare an emulsion (I)
• Step (2-2) an oil phase component containing an emulsion-forming component a step of mixing an aqueous phase component other than the mixture A to prepare an emulsion (II), and then mixing the mixture A
• step (2-1) In step (2-1), first, mixture A obtained in step (1) and an oil phase component containing an emulsion-forming component are mixed to prepare emulsion (I). Then, it is preferable to mix oil phase components containing component (C). Furthermore, water phase components other than the mixture A can be mixed as necessary. The mixing ratio of the mixture A and the oil phase component containing the emulsion-forming component is adjusted and mixed so that the total amount of the component (A) and the component (B) in the resulting emulsified composition is within a predetermined range. There is no particular limitation.
• the "oil phase component containing an emulsion-forming component” preferably contains component (D): cationic surfactant and component (E): higher alcohol as emulsion-forming components, and further comprises component ( F): May contain a non-aromatic polyol.
• the content of the emulsion-forming component is preferably 30% by mass or more, more preferably 50% by mass, from the viewpoint of stably forming the emulsion. % by mass or more, more preferably 70% by mass or more and 100% by mass or less.
• Oil phase component containing component (C) is an oil phase component that contains component (C) and does not contain an emulsion-forming component, and in addition to component (C), further contains component (G): an oil agent. be able to.
• the "aqueous phase components other than the mixture A” include the remainder of the organic acid and water, and component (F) (non-aromatic polyol).
• the temperature at which the mixture A and the oil phase component containing the emulsion-forming component are mixed in step (2-1) is not particularly limited, but from the viewpoint of the stability of the resulting composition, it is preferably 40° C. or higher.
• the temperature is more preferably 45° C. or higher, still more preferably 50° C. or higher, and preferably 90° C. or lower, more preferably 80° C. or lower from the viewpoint of suppressing thermal deterioration of the ingredients.
• the temperature at which the mixture A and the oil phase component containing the emulsion-forming component in step (2-1) are mixed is preferably 40° C. or higher and 90° C. or lower, more preferably 45° C. or higher and 90° C.
• the temperature is preferably 50°C or higher and 80°C or lower.
• the mixing time of the mixture A and the oil phase component containing the emulsion-forming component in step (2-1) is not particularly limited, but from the viewpoint of improving the emulsified state, it is preferably 1 minute or longer, more preferably 3 minutes or longer. , and from the viewpoint of productivity, it is preferably 1 hour or less.
• the obtained emulsion (I) is mixed with oil phase components including the component (C) described above, and, if necessary, water phase components other than the mixture A (other components).
• the emulsion (I), the oil phase component containing the component (C), and the aqueous phase component other than the mixture A may be mixed all at once, or divided into several times and added one to the other, May be mixed.
• the temperature at which the emulsion (I), the oil phase component containing the component (C), and the water phase component other than the mixture A are mixed is not particularly limited, but the feel of the resulting composition when applied to the hair
• the temperature is preferably 40° C. or higher, more preferably 45° C. or higher, and still more preferably 50° C. or higher, and from the viewpoint of suppressing thermal deterioration of the ingredients. is 90° C. or lower, more preferably 80° C. or lower, still more preferably 70° C. or lower.
• the mixing time of emulsion (I) and other components is not particularly limited, and is preferably 5 minutes or longer, more preferably 10 minutes or longer, and from the viewpoint of productivity, preferably 12 hours or shorter, more preferably 5 hours. hours or less, more preferably 1 hour or less.
• Step (2-2) In step (2-2), first, an emulsion (II) is prepared by mixing an oil phase component containing an emulsion-forming component with an aqueous phase component other than the mixture A. Next, the emulsion (II) and the mixture A are mixed.
• the “oil phase component including the emulsion-forming component” and the “aqueous phase component other than the mixture A” used herein are the same as in step (2-1).
• the amount of the aqueous phase components other than the mixture A used in the preparation of the emulsion (II) does not need to be the total amount of the aqueous phase components used in step (2-2), and may be at least a portion.
• the aqueous phase component other than the mixture A used for preparing the emulsion (II) is preferably water.
• the temperature at which the oil phase component containing the emulsion-forming component and the water phase component other than the mixture A are mixed is not particularly limited, but the feel of the resulting composition when applied to the hair.
• the temperature is preferably 40° C. or higher, more preferably 45° C. or higher, and still more preferably 50° C. or higher, and from the viewpoint of suppressing thermal deterioration of the ingredients. is 90° C. or less, more preferably 80° C. or less.
• the temperature at which the oil phase component containing the emulsion-forming component and the aqueous phase component other than the mixture A are mixed is preferably 40°C or higher and 90°C or lower, more preferably 45°C. 90° C. or higher, more preferably 50° C. or higher and 80° C. or lower.
• the mixing time is also not particularly limited, but is preferably 1 minute or more, more preferably 3 minutes or more from the viewpoint of preparing the emulsion, and preferably 1 hour or less from the viewpoint of productivity.
• Emulsion (II) and mixture A are mixed.
• the mixing ratio of the mixture A and the emulsion (II) may be adjusted so that the total amount of the component (A) and the component (B) in the resulting emulsified composition is within a predetermined range.
• Emulsion (II) and mixture A may be mixed all at once, or may be divided into multiple batches, one of which may be added to the other and mixed.
• an oil phase component containing the component (C) is mixed. . Further, if necessary, the remainder of the aqueous phase components can be added and mixed.
• the temperature at which the emulsion (II) and the mixture A are mixed is not particularly limited, but from the viewpoint of the stability of the emulsion composition to be obtained, it is preferably 50°C or lower, more preferably 45°C or lower, and preferably 10°C. °C or higher, more preferably 20 °C or higher.
• the temperature at which the emulsion (II) and the mixture A are mixed is preferably 10°C or higher and 50°C or lower, more preferably 20°C or higher and 45°C or lower.
• the mixing time of emulsion (II) and mixture A is also not particularly limited, and is preferably 1 minute or longer, more preferably 3 minutes or longer, and preferably 1 hour or shorter from the viewpoint of productivity.
• each mixing step in steps (2-1) and (2-2) can be performed using the same equipment as in step (1).
• the method for producing the hair cosmetic composition preferably includes steps (1) and (2-1).
• Component (A) one or more polymers selected from the group consisting of cationic polymers and amphoteric polymers
• the weight average molecular weight of the component (B) is 3,000 or more and 50,000 or less, and the total content of the component (A) and the component (B) is less than 1.0% by mass,
• a hair cosmetic composition wherein the content of the component (C) is 0.1% by mass or more and 1.0% by mass or less.
• the amphoteric polymer is preferably a polymer having a cationic group and an anionic group, the pH of a 1% aqueous solution of the polymer at 25°C is less than 5.1, and the total charge of the polymer is positively charged.
• the hair cosmetic composition according to any one of ⁇ 1>, ⁇ 3>, and ⁇ 4>, which is a polymer containing ⁇ 6> is a polymer containing ⁇ 6>
• the cationic charge density of the component (A) is preferably 0.1 meq/g or more and 10 meq/g or less, more preferably 0.5 meq/g or more and 8.0 meq/g or less, still more preferably 1.0 meq/g or more7 0 meq/g or less, more preferably 2.0 meq/g or more and 7.0 meq/g or less, the hair cosmetic composition according to any one of ⁇ 1> to ⁇ 5>.
• the component (A) is preferably cationized guar gum, cationized tara gum, cationized locust bean gum, cationic starch, cationized cellulose, cationized hydroxyalkylcellulose, cationized polyvinyl alcohol, polyethyleneimine, quaternary dialkyl Aminoalkyl (meth)acrylate polymer, diallyl quaternized ammonium salt polymer, methacrylamidopropyltrimethylammonium salt polymer, methacryloylethyltrimethylammonium salt polymer, vinylimidazolium trichloride/vinylpyrrolidone copolymer ( Polyquaternium-16), vinylpyrrolidone/alkylamino (meth)acryl
• the component (A) is more preferably a dimethyldiallylammonium chloride polymer (polyquaternium-6), an acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer (polyquaternium-39), and vinylimidazolium trichloride/vinylpyrrolidone.
• the hair cosmetic composition according to any one of ⁇ 1> to ⁇ 8>, which is at least one selected from the group consisting of copolymers (polyquaternium-16).
• the cationic charge density of the dimethyldiallylammonium chloride polymer is more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g or more, and even more preferably 6.5 meq/g. or less, and the weight average molecular weight is more preferably 10,000 or more and 200,000 or less, any one of ⁇ 2>, ⁇ 8>, and ⁇ 9>.
• the cationic charge density of the dimethyldiallylammonium chloride/acrylic acid copolymer is more preferably 2.0 meq/g or more, still more preferably 3.0 meq/g or more, and even more preferably 4.0 meq.
• /g or more more preferably 6.5 meq/g or less, still more preferably 6.0 meq/g or less, and a weight average molecular weight of 20,000 or more, still more preferably 50,000 More preferably 100,000 or more, still more preferably 200,000 or more, still more preferably 300,000 or more, still more preferably 1,000,000 or less, even more preferably 600,000 or less, still more preferably 500,000 or less
• the cationic charge density of the acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer is more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g or more, and even more preferably. is 6.5 meq/g or less, more preferably 5.0 meq/g or less, still more preferably 4.0 meq/g or less, and the weight average molecular weight is still more preferably 20,000 or more, still more preferably 50 ⁇ 2> , ⁇ 8>, ⁇ 9> any one hair cosmetic composition.
• the cationic charge density of acrylic acid/methyl acrylate/methacrylamidopropyltrimethylammonium chloride copolymer is more preferably 2.0 meq/g or more, still more preferably 2.5 meq/g or more. , More preferably 6.5 meq/g or less, still more preferably 5.0 meq/g or less, still more preferably 4.5 meq/g or less, and a weight average molecular weight of 200,000 or more, still more preferably
• the hair cosmetic according to ⁇ 2> or ⁇ 8> which is preferably 500,000 or more, more preferably 1,000,000 or more, preferably 5,000,000 or less, more preferably 3,000,000 or less, and still more preferably 1,500,000 or less. composition.
• the cationic charge density of the vinylimidazolium trichloride/vinylpyrrolidone copolymer is more preferably 2.0 meq/g or more, still more preferably 6.5 meq/g or less, and even more preferably 5.0 meq/g or less, more preferably 4.5 meq/g or less, and a weight average molecular weight of 20,000 or more, even more preferably 50,000 or more, and still more preferably 150,000 or less.
• the hair cosmetic composition according to any one of ⁇ 2>, ⁇ 8>, and ⁇ 9>.
• the anion charge density of the component (B) is preferably 0.1 meq/g or more and 30 meq/g or less, more preferably 0.5 meq/g or more and 30 meq/g or less, still more preferably 1.0 meq/g or more and 20 meq/g.
• the hair cosmetic composition according to any one of ⁇ 1> to ⁇ 14>, more preferably 2.0 meq/g or more and 15 meq/g or less.
• the component (B) is preferably one or more selected from the group consisting of polyacrylic acid, (meth)acrylic acid/(meth)acrylic acid alkyl ester copolymer, or salts thereof, and more preferably polyacrylic acid.
• the hair cosmetic according to any one of ⁇ 1>, ⁇ 3> to ⁇ 16>, which is at least one selected from the group consisting of acids, (acrylic acid/stearyl acrylate) copolymers, and salts thereof. composition.
• each R 21 independently represents a methyl group or a hydroxy group
• each R 22 independently represents an alkyl group having 1 to 30 carbon atoms, a hydroxy group, or R 23 .
• R 23 is -R 24 -Z 1 (R 24 is a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, and Z 1 is a primary to tertiary amino group-containing group or an ammonium group-containing group; ) represents a monovalent group represented by a represents a number of 0 or more and 3000 or less, and b represents a number of 1 or more and 3000 or less.
• the amino-modified silicone represented by the general formula (I) is one or more selected from the group consisting of amodimethicone, aminopropyl dimethicone, bis(aminopropyl)dimethicone, and bis(cetearyl)amodimethicone, preferably the following:
• the hair according to ⁇ 18> which is an amino-modified silicone represented by any one of general formulas (Ia) to (Id), more preferably an amino-modified silicone (amodimethicone) represented by the following general formula (Ia) cosmetic composition.
• a, b, c and R 24 are the same as defined above.
• Si/AO is preferably from 0.05 to 3.0, more preferably from 0.05 to 3.0, where Si is the number of moles of silicon atoms in the aminopolyether-modified silicone and AO is the average number of moles of added alkylene oxide.
• Si is the number of moles of silicon atoms in the aminopolyether-modified silicone and AO is the average number of moles of added alkylene oxide.
• the nitrogen content of the aminopolyether-modified silicone is preferably 0.1% by mass or more and 2.5% by mass or less, more preferably 0.2% by mass or more and 2.0% by mass or less, and still more preferably 0.5% by mass. % or more and 1.8 mass % or less, more preferably 1.0 mass % or more and 1.5 mass % or less, the hair cosmetic composition according to any one of ⁇ 1> to ⁇ 21>.
• R 31 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms.
• R 32 represents either R 31 or E; E is -R 33 -Z 2 (R 33 is a single bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, Z 2 is a primary to tertiary amino group-containing group or an ammonium group-containing group .) represents a monovalent group.
• Y represents an alkylene group having 1 to 6 carbon atoms.
• d is a number of 2 or more
• e is a number of 1 or more
• f is a number of 2 or more and 100 or less
• g is a number of 1 or more.
• m represents a number of 2 or more and 10 or less.
• the order of bonding between structural units in parentheses does not matter, and the form of bonding may be block or random.
• f C m H 2m O may be the same or different.
• a plurality of R 31 , R 32 , E and Y may be the same or different.
• the content of component (A) in the hair cosmetic composition is preferably 0.01% by mass or more and less than 0.50% by mass, more preferably 0.02% by mass or more and 0.30% by mass or less, and even more preferably is 0.03% by mass or more and 0.20% by mass or less, the hair cosmetic composition according to any one of ⁇ 1> to ⁇ 25>.
• the content of component (B) in the hair cosmetic composition is preferably 0.01% by mass or more and less than 0.50% by mass, more preferably 0.01% by mass or more and 0.30% by mass or less, and even more preferably is 0.01% by mass or more and 0.20% by mass or less, more preferably 0.015% by mass or more and 0.10% by mass or less, hair cosmetic according to any one of ⁇ 1> to ⁇ 26> Composition.
• the total content of component (A) and component (B) in the hair cosmetic composition is preferably 0.01% by mass or more and 0.9% by mass or less, more preferably 0.03% by mass or more and 0.9% by mass. % by mass or less, more preferably 0.05% by mass or more and 0.9% by mass or less, even more preferably 0.05% by mass or more and 0.5% by mass or less, still more preferably 0.05% by mass or more and 0.3% by mass or less.
• the ratio of the number of moles of cationic charge of component (A) to the number of moles of anionic charge of component (B) in the hair cosmetic composition is preferably 5/95 to 95/5, more preferably 10/ ⁇ 1> ⁇
• the content of component (C) in the hair cosmetic composition is preferably 0.03% by mass or more and 5.0% by mass or less, more preferably 0.05% by mass or more and 5.0% by mass or less, and even more preferably is 0.05% by mass or more and 2.0% by mass or less, more preferably 0.1% by mass or more and 1.0% by mass or less, and even more preferably 0.1% by mass or more and 0.5% by mass or less.
• the mass ratio of the total content of component (A) and component (B) to the content of component (C) in the hair cosmetic composition [ ⁇ (A) + (B) ⁇ /(C)] is preferably 0.01 or more and 5.0 or less, more preferably 0.05 or more and 3.0 or less, still more preferably 0.10 or more and 2.0 or less, still more preferably 0.20 or more and 1.5 or less,
• ⁇ 32> The hair cosmetic composition according to any one of ⁇ 1> to ⁇ 31>, further comprising an organic acid.
• the organic acid is preferably a compound having a molecular weight of 500 or less, more preferably 200 or less.
• the organic acid is preferably one or more selected from the group consisting of aliphatic dicarboxylic acids, hydroxycarboxylic acids, and aromatic sulfonic acids, more preferably succinic acid, lactic acid, malic acid, glycolic acid, and p-toluene.
• ⁇ 32> to ⁇ 34> which is one or more selected from the group consisting of sulfonic acid and naphthalenesulfonic acid, more preferably one or more selected from the group consisting of succinic acid and lactic acid, and still more preferably lactic acid.
• a hair cosmetic composition according to any one of the above. ⁇ 36> The organic acid content in the hair cosmetic composition is preferably 0.01% by mass or more and 5.0% by mass or less, more preferably 0.02% by mass or more and 3.0% by mass or less, and still more preferably 0% by mass.
• the water content in the hair cosmetic composition is preferably 10% by mass or more and 99% by mass or less, more preferably 20% by mass or more and 95% by mass or less,
• the hair cosmetic composition according to ⁇ 37> which is more preferably 30% by mass or more and 92% by mass or less.
• Component (D) is preferably (i) alkyltrimethylammonium salt, (ii) alkoxyalkyltrimethylammonium salt, (iii) dialkyldimethylammonium salt, (iv) alkylamidoalkyltrimethylammonium salt, (v) alkyldimethylamine and salts thereof, (vi) alkoxyalkyldimethylamines and salts thereof, and (vii) alkylamidoalkyldimethylamines and salts thereof, and more preferably (i) alkyltrimethylammonium one or more selected from the group consisting of salts, (ii) alkoxyalkyltrimethylammonium and (v) alkyldimethylamines and salts thereof, more preferably behenyltrimethylammonium chloride, stearoxypropyltrimethylammonium chloride and stearoxyethyltrimethylammonium chloride , stearoxyhydroxypropyltrimethylammonium chloride
• the content of component (D) in the hair cosmetic composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 5.0% by mass or less, and still more preferably 0% by mass.
• the hair cosmetic composition according to ⁇ 39> or ⁇ 40> which is 5% by mass or more and 3.5% by mass or less, more preferably 1.0% by mass or more and 3.5% by mass or less.
• ⁇ 42> The hair cosmetic composition according to any one of ⁇ 1> to ⁇ 41>, further comprising a higher alcohol as component (E).
• Component (E) is an aliphatic monohydric alcohol having 12 or more carbon atoms, preferably 12 or more and 22 or less carbon atoms, more preferably lauryl alcohol, cetyl alcohol, myristyl alcohol, oleyl alcohol, stearyl alcohol, isostearyl alcohol; - one or more selected from the group consisting of octyldodecanol, behenyl alcohol, and cetostearyl alcohol, more preferably one or more selected from the group consisting of cetyl alcohol, myristyl alcohol, stearyl alcohol, and behenyl alcohol;
• the hair cosmetic composition according to ⁇ 42> which is preferably stearyl alcohol.
• the content of component (E) in the hair cosmetic composition is preferably 0.1% by mass or more and 15% by mass or less, more preferably 0.2% by mass or more and 12% by mass or less, and still more preferably 0.5% by mass.
• the hair cosmetic composition according to ⁇ 42> or ⁇ 43> which is 1.0% by mass or more and 10% by mass or less, more preferably 1.0% by mass or more and 10% by mass or less.
• the component (F) is one or more selected from the group consisting of 1,3-butylene glycol, glycerin, ethylene glycol, propylene glycol and dipropylene glycol, preferably the group consisting of 1,3-butylene glycol and dipropylene glycol.
• the hair cosmetic composition according to ⁇ 45> which is one or more selected from, more preferably dipropylene glycol.
• the content of component (F) in the hair cosmetic composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 10% by mass or less, and still more preferably 0.5% by mass.
• the hair cosmetic composition according to ⁇ 45> or ⁇ 46> which is 5.0% by mass or less, more preferably 1.0% by mass or more and 3.0% by mass or less.
• the component (G) is selected from the group consisting of (a) silicone oils, (b) ester oils, (c) ether oils, (d) hydrocarbon oils, (e) higher fatty acids, and (f) waxes.
• the hair cosmetic composition according to ⁇ 48> which further preferably comprises dimethylpolysiloxane and lanolin fatty acid.
• the content of component (G) in the hair cosmetic composition is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 5.0% by mass or less, and still more preferably 0% by mass.
• the hair cosmetic composition according to ⁇ 48> or ⁇ 49> which is 5% by mass or more and 5.0% by mass or less, more preferably 1.0% by mass or more and 3.0% by mass or less.
• the pH of the 5% aqueous solution of the hair cosmetic composition at 25°C is preferably 2.0 or more and 10.0 or less, more preferably 3.0 or more and 7.0 or less, and still more preferably 3.0 or more and 5.0.
• ⁇ 52> The method for producing a hair cosmetic composition according to any one of ⁇ 1> to ⁇ 51>, comprising the following step (1) and either the following step (2-1) or step (2-2).
• Step (1) Step of preparing a mixture A containing component (A), component (B), an organic acid and water Step (2-1) Mixing the mixture A with an oil phase component containing an emulsion-forming component Step (2-2) of preparing an emulsion (I) by mixing an oil phase component containing an emulsion-forming component with an aqueous phase component other than the mixture A to prepare an emulsion (II), and then , the step of mixing the mixture A ⁇ 53>
• the emulsion-forming component preferably contains an ionic surfactant and an amphiphilic substance having a hydrophobic group, more preferably component (D): a cationic surfactant and component (E ): The production method according to ⁇ 52>, which contains a higher alcohol.
• the component (C) is preferably mixed after step (2-1) or after step (2-2), and more preferably emulsion (I) is prepared in step (2-1). Later, the emulsion (I) and component (C) are mixed, or in step (2-2), the component (C) is mixed after mixing the emulsion (II) and the mixture A, ⁇ 52> Or the production method according to ⁇ 53>.
• the temperature during mixing in the step (1) is preferably 40°C to 90°C, more preferably 45°C to 80°C, even more preferably 50°C to 70°C, still more preferably 50°C to 65°C.
• ⁇ 56> The production method according to any one of ⁇ 52> to ⁇ 55>, wherein the mixing time in the step (1) is preferably 1 minute or longer, more preferably 3 minutes or longer, and preferably 1 hour or shorter.
• the mixture A obtained in step (1) is in the form of a suspension.
• the amount of component (A) in the mixture A is preferably 0.01% by mass or more and less than 10% by mass, more preferably 0.03% by mass or more and less than 5% by mass, based on the total amount of 100% by mass of the mixture A. , More preferably 0.03% by mass or more and less than 1% by mass, still more preferably 0.05% by mass or more and less than 0.5% by mass, any one of ⁇ 52> to ⁇ 57> manufacturing method.
• the amount of the component (B) in the mixture A is preferably 0.01% by mass or more and less than 5% by mass, more preferably 0.01% by mass or more and less than 3% by mass, based on the total amount of 100% by mass of the mixture A.
• the amount of the organic acid in the mixture A is preferably 0.01% by mass or more and less than 10% by mass, more preferably 0.01% by mass or more and less than 5% by mass, based on the total amount of 100% by mass of the mixture A.
• the mass ratio of the total amount of component (A) and component (B) to the amount of organic acid [(A+B)/organic acid] is preferably 1/0.1 to 1/20, More preferably 1/0.1 to 1/15, still more preferably 1/0.20 to 1/10, still more preferably 1/0.20 to 1/8, still more preferably 1/0.22 to
• the amount of water in the mixture A is preferably 50% by mass or more and 99.97% by mass or less, more preferably 50% by mass or more and 99.8% by mass or less, still more preferably 60% by mass in the total amount of 100% by mass of the mixture A.
• the total content of component (A), component (B), organic acid and water in the mixture A is preferably 70% by mass or more, more preferably 80% by mass or more, still more preferably 90% by mass or more, and still more
• the temperature at which the mixture A and the oil phase component containing the emulsion-forming component are mixed is preferably 40° C. or higher and 90° C. or lower, more preferably 45° C. or higher and 90° C. or lower.
• the mixing time of the mixture A and the oil phase component containing the emulsion-forming component in the step (2-1) is preferably 1 minute or longer, more preferably 3 minutes or longer, and preferably 1 hour or shorter.
• the temperature at which the oil phase component containing the emulsion-forming component and the aqueous phase component other than the mixture A are mixed is preferably 40° C. or higher and 90° C. or lower, more preferably 45° C. or higher.
• the mixing time of the oil phase component containing the emulsion-forming component and the aqueous phase component other than the mixture A is preferably 1 minute or longer, more preferably 3 minutes or longer, preferably The production method according to any one of ⁇ 52> to ⁇ 67>, which is 1 hour or less.
• the temperature at which the emulsion (II) and the mixture A are mixed is preferably 10° C. or higher and 50° C. or lower, more preferably 20° C. or higher and 45° C. or lower.
• the mixing time of the emulsion (II) and the mixture A in the step (2-2) is preferably 1 minute or more, more preferably 3 minutes or more, and preferably 1 hour or less.
• ⁇ 71> The production method according to any one of ⁇ 52> to ⁇ 70>, wherein the method for producing the hair cosmetic composition comprises step (1) and step (2-1).
• pH measurement Water was added to the hair cosmetic composition (hair conditioner) of each example to obtain a 5% aqueous solution, and the pH at 25° C. was measured using a pH meter (F-51, manufactured by Horiba, Ltd.). All the pHs were 3.4.
• the storage stability of the hair conditioner of each example was evaluated by a cycle test.
• a cycle test was conducted in which the hair conditioner of each example was stored for 2 weeks in an environment where the temperature varied from 40°C to -28°C.
• a bleaching agent (a mixture of "Kao Awa Hair Bleach L” (1 liquid) 7 mL and "Kao Awa Hair Color d" (2 liquid) 14 mL) is applied to a Japanese hair tress of 30 cm in length and 20 g in weight. After standing for 20 minutes, it was thoroughly rinsed with warm water of 35 to 40°C. The above treatment was repeated four times to prepare a tress for evaluation of Japanese damaged hair. 1 mL of the hair conditioner of each example was applied to the evaluation tress and spread by hand. The feel at that time was evaluated by 5 expert panelists according to the following criteria, and the average value was used as the evaluation result. 5: Very smooth 4: Smooth 3: Slightly smooth 2: Equivalent smoothness to when using a plain conditioner with the following composition 1: Immediately loses its presence and is not smooth
• [Plain conditioner composition] (mass%) Stealoxypropyl dimethylamine (*1) 0.9 Stearyl alcohol (*2) 3.0 Dipropylene glycol 0.5 benzyl alcohol 0.2 Lactic acid (*3) 1.1 Remaining amount of purified water Total 100.0 (* 1) Kao Corporation "Farmin DM-E80", active ingredient amount 90% by mass (* 2) Kao Corporation “Calcol 8098”, active ingredient amount 100% by mass (*3) PURAC Thailand Ltd. "PURAC ULTRAPURE 90”, active ingredient amount 90% by mass
• Example 1 (Preparation and evaluation of hair conditioner) Using the ingredients listed in Table 1, a hair conditioner was prepared by the following procedure. In a 500 mL beaker, 1.52 g of the component (A) polyquaternium-6 solution, 3 g of lactic acid (90% by mass), and 422.7 g of water are added, and a stirring device (mechanical stirrer with two propeller blades) is turned on. was used to heat and stir at 80°C. After confirming that a uniform solution was obtained, 0.37 g of sodium polyacrylate as the component (B) was added and mixed to obtain a mixture A that was a uniform suspension (step (1)). Next, a hair cosmetic composition (hair conditioner) was prepared by the following procedure.
• step (2-1) evaluation was performed by the method described above.
• Table 1 shows the results.
• the compounding amount described in the table of the present example is the compounding amount (% by mass) of each component in its original state, and the "effective content" described in the table of the present example is converted to the amount of active ingredient. It is the content or compounding amount (% by mass) of each component.
• Examples 2-10, Comparative Examples 1-12 A hair conditioner was produced and evaluated in the same manner as in Example 1, except that the types and amounts of each component used in the preparation of the hair conditioner were changed as shown in Table 1. The results are shown in Tables 1-2.
• MERQUAT 3940 POLYMER cationic charge density: 2.97 meq / g, Mw: 150,000, amount of active ingredient: 43% by mass *3 Polyquaternium-16 (vinylimidazolium trichloride/vinylpyrrolidone copolymer), BASF SE “Rubicut FC 550”, cationic charge density: 3.91 meq/g, Mw: 80,000, active ingredient content: 43 mass % *4 Polyquaternium-22 (dimethyldiallylammonium chloride/acrylic acid copolymer liquid), Lubrizol Advanced Materials, Inc.
• a hair cosmetic composition that gives a good feel when applied to the hair, can suppress spreading of the hair under high humidity conditions, and has high stability.

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