Aqueous composition for fiber or keratin substance treatment

Abstract

To provide an aqueous composition for fiber or keratin substance treatment that exhibits excellent residual fragrance properties even when using fragrances that are difficult to encapsulate.SOLUTION: An aqueous composition for fiber or keratin substance treatment includes (A) a predetermined cationic polymer, (B) an anionic polysaccharide, (C) at least one fragrance selected from the group consisting of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate, and water. The ratio of the cationic charge of component (A) to the anionic charge of component (B) [(A) / (B)] is 0.30 or more and 25 or less.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an aqueous composition for treating textiles or keratinous materials. [Background technology]

[0002] In cosmetics and cleaning agents, efforts are being made to improve the lingering fragrance after application to objects. One of the methods is known to be the technology of encapsulating fragrances. It is also known to form microcapsules using cationic polymers and anionic polymers as an encapsulation technique for oil components such as perfume.For example, Patent Document 1 discloses a core-shell microcapsule slurry that meets certain requirements and includes at least one microcapsule having an oil-based core; a polymer shell formed by interfacial polymerization in the presence of an anionic emulsifier; and a coating that includes at least one cationic polymer, and describes that the combination of the presence of an anionic emulsifier and a cationic polymer according to a specific charge density range can optimize adhesion in rinse-off applications.Also disclosed is a perfume microcapsule slurry in which the oil includes a perfume, and a perfumed composition that includes the slurry. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2021-502956 Summary of the Invention [Problem to be solved by the invention]

[0004] The production of the core-shell microcapsule slurry described in Patent Document 1 includes a step of polymerizing a monomer in the presence of an oil such as a fragrance. However, for example, a fragrance component containing a carbon-carbon unsaturated bond may react with the monomer during the polymerization, making it difficult to encapsulate the fragrance component. The present invention relates to an aqueous composition for treating fibers or keratinous materials, which can exhibit excellent residual fragrance on treated fibers or keratinous materials even when a fragrance that is difficult to encapsulate, such as a fragrance component containing a carbon-carbon unsaturated bond, is used. [Means for solving the problem]

[0005] The present inventors have found that the above-mentioned problems can be solved by an aqueous composition that contains a specific cationic polymer, an anionic polysaccharide, a fragrance containing a specific compound, and water, in which the ratio of the cationic charge of the cationic polymer to the anionic charge of the anionic polysaccharide is within a specified range.

[0006] That is, the present invention relates to the following. [1] The following components (A) to (C): (A) one or more cationic polymers selected from the group consisting of (A1) cationic polymers having a viscosity of 500 mPa s or more in a 1% by mass aqueous solution at 30°C and containing a constitutional unit represented by the following general formula (1), and (A2) cationic polysaccharides having a viscosity of 20 mPa s or more in a 1% by mass aqueous solution at 30°C: [ka] In formula (1), R 1 is a hydrogen atom or a methyl group, R 2 ~R 4 are each independently an alkyl group having 1 to 4 carbon atoms. X is -O- or -NH-, and m is a number of 1 to 4. (B) Anionic polysaccharides (C) A fragrance containing one or more selected from the group consisting of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate. and water, 1. An aqueous composition for treating fibers or keratinous materials, wherein the ratio of the cationic charge of component (A) to the anionic charge of component (B) [(A) / (B)] is 0.30 or more and 25 or less. [2] A hair cosmetic composition comprising the composition described in [1] above. Effect of the Invention

[0007] According to the present invention, there is provided an aqueous composition for treating fibers or keratinous materials, which can exhibit excellent residual fragrance on treated fibers or keratinous materials even when a fragrance that is difficult to encapsulate is used. The composition can be used as various cosmetic compositions such as hair cosmetic compositions and skin cosmetic compositions. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] [Definition] In this specification, the term "fiber" refers to a substance that can be visually recognized as having a fibrous shape, including keratin fibers that constitute body parts of animals such as humans, such as hair, eyelashes, eyebrows, and wool, artificially produced keratin fibers, and synthetic fibers other than keratin fibers, such as nylon fibers and polyester fibers. Furthermore, the term "keratinous material" refers to keratinous materials other than keratinous fibers, including keratinous materials constituting body parts of animals such as humans, such as skin and nails, as well as artificially produced keratinous materials. The term "aqueous composition" refers to a composition containing water as a main component, and preferably refers to a composition having a water content of 50% by mass or more. The aqueous composition for treating fibers or keratinous substances of the present invention (hereinafter also simply referred to as "the composition of the present invention") is preferably an aqueous composition for treating fibers or skin, more preferably an aqueous composition for treating fibers, and even more preferably an aqueous composition for treating hair. In this specification, the phrase "containing component X" also includes blending component X.

[0009] [Aqueous compositions for treating textiles or keratinous materials] The composition of the present invention comprises the following components (A) to (C): (A) one or more cationic polymers selected from the group consisting of (A1) cationic polymers having a viscosity of 500 mPa s or more in a 1% by mass aqueous solution at 30°C and containing a constitutional unit represented by the following general formula (1), and (A2) cationic polysaccharides having a viscosity of 20 mPa s or more in a 1% by mass aqueous solution at 30°C: [ka] In formula (1), R 1 is a hydrogen atom or a methyl group, R 2 ~R 4 are each independently an alkyl group having 1 to 4 carbon atoms. X is -O- or -NH-, and m is a number of 1 to 4. (B) Anionic polysaccharides (C) A fragrance containing one or more selected from the group consisting of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate. and water, wherein the ratio of the cationic charge of component (A) to the anionic charge of component (B) [(A) / (B)] is 0.30 or more and 25 or less. By virtue of having the above-mentioned constitution, the composition of the present invention can exhibit excellent residual fragrance on treated fibers or keratinous materials even when a fragrance which is difficult to encapsulate is used.

[0010] The reason why the composition of the present invention exhibits the above-mentioned effects is not clear, but is thought to be as follows. The composition of the present invention contains a polyion complex formed by ionic interaction between component (A) and component (B), and is capable of forming a film when applied to fibers or keratinous materials. In the polyion complex, a crosslinked structure is formed between component (A) and component (B) by ionic interaction, and since the fragrance can be retained in the film having the crosslinked structure without encapsulating the fragrance, it is believed that excellent fragrance retention can be obtained. Generally, polyion complexes are hydrophobic and insoluble in water, but in the present invention, by using a specific anionic polymer (anionic polysaccharide) as component (B), the formed polyion complex becomes relatively hydrophilic due to the polysaccharide skeleton, and it is believed that aggregation of the polyion complex is suppressed. Furthermore, it is believed that by keeping the ratio of the cationic charge of component (A) to the anionic charge of component (B) [(A) / (B)] (hereinafter also referred to simply as "charge ratio [(A) / (B)]") within a specified range, the crosslinked structure is efficiently formed, improving the retention of the fragrance. It is also believed that by keeping the charge ratio [(A) / (B)] within a specified range, aggregation is suppressed even when component (C) and other oily components are blended with the polyion complex, and the blending stability of the resulting composition is improved.

[0011] <Component (A): Cationic polymer> Component (A) is one or more cationic polymers selected from the group consisting of (A1) cationic polymers having a viscosity of 500 mPa s or more in a 1% by mass aqueous solution at 30°C and containing a constitutional unit represented by general formula (1) below, and (A2) cationized polysaccharides having a viscosity of 20 mPa s or more in a 1% by mass aqueous solution at 30°C. [ka] In formula (1), R 1 is a hydrogen atom or a methyl group, R 2 ~R 4 are each independently an alkyl group having 1 to 4 carbon atoms. X is -O- or -NH-, and m is a number of 1 to 4. Component (A) is a polymer capable of forming a polyion complex through interaction with component (B). The cationic polymer of component (A) is preferably a polymer having cationic groups and a positive total charge. Component (A) may have an anionic group, a nonionic group, or an amphoteric group such as a betaine group in addition to the cationic group, as long as the effect of the present invention is not impaired. In this specification, the cationic group refers to a cationic group or a group that can be ionized to become a cationic group, and specific examples thereof include a primary amino group, a secondary amino group, a tertiary amino group, and a quaternary ammonium group. The anionic group is an anionic group or a group that can be ionized to become an anionic group, and specifically includes at least one selected from the group consisting of acidic groups such as a carboxy group, a sulfonic acid group, and a phosphoric acid group, and is preferably at least one selected from a carboxy group and a sulfonic acid group, and more preferably a carboxy group. At least a part of the anionic group may be neutralized and in the form of a salt.

[0012] (Component (A1)) Component (A1) is a cationic polymer having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30° C. and containing a constitutional unit represented by the following general formula (1). [ka] In formula (1), R 1 is a hydrogen atom or a methyl group, R 2 ~R 4 are each independently an alkyl group having 1 to 4 carbon atoms. X is -O- or -NH-, and m is a number of 1 to 4.

[0013] R in general formula (1) 1 is preferably a methyl group, R 2 ~R 4 are each independently preferably an alkyl group having 1 to 3 carbon atoms, more preferably a methyl group or an ethyl group, and even more preferably a methyl group. In the general formula (1), X is preferably —O—, and m is preferably 1 or more and 3 or less, more preferably 2 or more and 3 or less.

[0014] Examples of the structural unit represented by general formula (1) include one or more types selected from the group consisting of structural units derived from methacryloylethyl trimethylammonium salts, structural units derived from N,N-dimethylaminoethyl diethyl methacrylate sulfate, and structural units derived from methacrylamide propyl trimethylammonium salts, and preferably one or more types selected from the group consisting of structural units derived from methacryloylethyl trimethylammonium salts and structural units derived from N,N-dimethylaminoethyl diethyl methacrylate sulfate.

[0015] In component (A1), the content of the structural unit represented by general formula (1) is preferably 8.0 mol % or more and 100 mol % or less of all structural units constituting component (A1), from the viewpoint of improving film-forming ability and improving fragrance lingering.

[0016] Component (A1) may be a polymer containing other structural units than the structural unit represented by the general formula (1). Examples of the other structural units include structural units derived from vinyl monomers such as vinylpyrrolidone, amphoteric monomers such as (meth)acryloylethyldimethylbetaine, (meth)acrylic acid alkyl esters, hydroxyalkyl (meth)acrylates such as 2-hydroxyethyl (meth)acrylate, and acrylamides such as N,N-dimethylacrylamide. Component (A) may also be a crosspolymer crosslinked with polyethylene glycol di(meth)acrylate. In this specification, "(meth)acrylic acid" means acrylic acid or methacrylic acid, and "(meth)acrylate" means acrylate or methacrylate.

[0017] Specific preferred examples of the cationic polymer containing the constitutional unit represented by the general formula (1) include one or more selected from the group consisting of methacryloylethyltrimethylammonium chloride polymer (polyquaternium-37), methacryloylethyldimethylbetaine-methacryloylethyltrimethylammonium chloride-methoxypolyethylene glycol methacrylate copolymer (polyquaternium-49), methacryloylethyldimethylbetaine-methacryloylethyltrimethylammonium chloride-2-hydroxyethyl methacrylate copolymer (polyquaternium-48), and N,N-dimethylaminoethyl diethyl methacrylate sulfate-N,N-dimethylacrylamide-polyethylene glycol dimethacrylate copolymer (polyquaternium-52). Among these, from the viewpoint of improving film-forming ability and improving fragrance retention, it is preferable to use one or more selected from the group consisting of methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) and N,N-dimethylaminoethyl diethyl methacrylate sulfate·N,N-dimethylacrylamide·polyethylene glycol dimethacrylate copolymer (Polyquaternium-52).

[0018] From the viewpoint of improving film-forming ability and improving fragrance retention, a 1% by mass aqueous solution of component (A1) has a viscosity at 30°C of 500 mPa·s or more, preferably 700 mPa·s or more, more preferably 800 mPa·s or more, even more preferably 1,000 mPa·s or more, still more preferably 1,500 mPa·s or more, still more preferably 1,800 mPa·s or more, still more preferably 2,000 mPa·s or more, still more preferably 2,200 mPa·s or more, and still more preferably 2,400 mPa·s or more. There is no particular upper limit to the viscosity, but from the viewpoints of ease of formation of a polyion complex and ease of handling, it is preferably 100,000 mPa·s or less, more preferably 80,000 mPa·s or less, even more preferably 50,000 mPa·s or less, still more preferably 30,000 mPa·s or less, still more preferably 25,000 mPa·s or less, still more preferably 22,000 mPa·s or less, still more preferably 20,000 mPa·s or less, and still more preferably 18,000 mPa·s or less. The viscosity of a 1% by mass aqueous solution of component (A1) at 30° C. can be specifically measured by the method described in the Examples.

[0019] The cationic charge density of component (A1) is preferably 0.1 mmol / g or more, more preferably 0.2 mmol / g or more, even more preferably 0.3 mmol / g or more, and even more preferably 0.5 mmol / g or more, from the viewpoint of facilitating the formation of a polyion complex through interaction with component (B) and from the viewpoint of improving the lingering fragrance and improving the stability of blending, and is preferably 20 mmol / g or less, more preferably 15 mmol / g or less, even more preferably 12 mmol / g or less, even more preferably 10 mmol / g or less, even more preferably 7.0 mmol / g or less, and even more preferably 5.0 mmol / g or less, from the viewpoint of improving the lingering fragrance and improving the stability of blending.

[0020] The cationic charge density of component (A1) is the number of moles of cationic groups contained per gram of polymer. When at least a part of the cationic groups of component (A1) is in the form of a neutralized salt, the number of moles of the cationic groups includes the number of moles of the cationic groups in the form of a salt. Two or more polymers may be used as component (A1). In this case, the cationic charge density of component (A1) is determined by calculating a weighted average from the cationic charge density and blending amount of each polymer.

[0021] Commercially available polymers can also be used as component (A1). Specific examples include "Cosmedia Ultragel 300" (polyquaternium-37, cationic charge density: 4.81 mmol / g) manufactured by BASF Japan Co., Ltd., "SOFCARE KG-101W-E" (polyquaternium-52, cationic charge density: 0.83 mmol / g) and "SOFCARE KG-301W" (polyquaternium-52, cationic charge density: 1.84 mmol / g) manufactured by Kao Corporation.

[0022] (Component (A2)) Component (A2) is a cationic polysaccharide having a viscosity of 20 mPa s or more in a 1% by mass aqueous solution at 30° C. In this specification, the term "cationized polysaccharide" refers to a modified polysaccharide in which a cationic group has been introduced into the polymer skeleton of a polysaccharide.

[0023] Specific examples of cationic polysaccharides include cationic galactomannans such as cationic guar gum, cationic tara gum, cationic fenugreek gum, and cationic locust bean gum; cationic polymers having a cellulose skeleton such as cationic cellulose, cationic hydroxyethyl cellulose, cationic hydroxypropyl cellulose, and cationic carboxymethyl cellulose; and cationic starch. Among these, from the viewpoint of improving the film-forming ability and the residual fragrance, the cationic polysaccharide is preferably one or more selected from the group consisting of cationic galactomannan and cationic polymer having a cellulose skeleton, more preferably one or more selected from the group consisting of cationic guar gum and cationic polymer having a cellulose skeleton, even more preferably one or more selected from the group consisting of O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride (display name: guar hydroxypropyltrimonium chloride), a hydroxypropyl derivative of O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride (display name: hydroxypropyl guar hydroxypropyltrimonium chloride), and a cationic polymer having a cellulose skeleton, even more preferably a cationic polymer having a cellulose skeleton, even more preferably a cationic hydroxyethyl cellulose, and even more preferably an o-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride (polyquaternium-10).

[0024] The viscosity of a 1% by mass aqueous solution of component (A2) at 30°C is, from the viewpoint of improving film-forming ability and improving fragrance retention, 20 mPa·s or more, preferably 50 mPa·s or more, more preferably 100 mPa·s or more, and even more preferably 150 mPa·s or more. Although there is no particular upper limit to the viscosity, from the viewpoints of ease of formation of a polyion complex and ease of handling, the viscosity is preferably 100,000 mPa·s or less, more preferably 80,000 mPa·s or less, even more preferably 50,000 mPa·s or less, still more preferably 30,000 mPa·s or less, still more preferably 25,000 mPa·s or less, still more preferably 20,000 mPa·s or less, still more preferably 10,000 mPa·s or less, still more preferably 5,000 mPa·s or less, still more preferably 3,000 mPa·s or less, still more preferably 2,000 mPa·s or less, still more preferably 1,000 mPa·s or less, still more preferably 500 mPa·s or less, still more preferably 300 mPa·s or less, and still more preferably 200 mPa·s or less. The viscosity of a 1% by mass aqueous solution of component (A2) at 30° C. can be specifically measured by the method described in the Examples.

[0025] The cationic charge density of component (A2) is preferably 0.1 mmol / g or more, more preferably 0.2 mmol / g or more, even more preferably 0.3 mmol / g or more, and even more preferably 0.5 mmol / g or more, from the viewpoint of facilitating the formation of a polyion complex through interaction with component (B) and from the viewpoint of improving the lingering fragrance and the stable blending, and is preferably 20 mmol / g or less, more preferably 15 mmol / g or less, even more preferably 12 mmol / g or less, even more preferably 10 mmol / g or less, even more preferably 7.0 mmol / g or less, even more preferably 5.0 mmol / g or less, even more preferably 3.0 mmol / g or less, even more preferably 2.0 mmol / g or less, and even more preferably 1.5 mmol / g or less, from the viewpoint of improving the lingering fragrance and the stable blending.

[0026] The cationic charge density of component (A2) is the number of moles of cationic groups contained per gram of polymer. When at least a part of the cationic groups of component (A2) is in the form of a neutralized salt, the number of moles of the cationic groups includes the number of moles of the cationic groups in the form of a salt. Two or more polymers may be used as component (A2). In this case, the cationic charge density of component (A2) is determined by calculating a weighted average from the cationic charge density and blending amount of each polymer.

[0027] Commercially available polymers can also be used as component (A2). Specific examples include cationic guar gums such as the "Jaguar" series manufactured by Solvay and the "Labor Gum" series manufactured by DSP Gokyo Food & Chemical Co., Ltd.; cationic celluloses such as the "Poise C" series manufactured by Kao Corporation and the "Catinal" series manufactured by Toho Chemical Industry Co., Ltd.

[0028] From the viewpoint of facilitating the formation of a polyion complex through interaction with component (B) and from the viewpoint of improving fragrance retention, component (A) is preferably one or more cationic polymers selected from the group consisting of the following components (A1) and (A2): (A1) One or more selected from the group consisting of methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) and N,N-dimethylaminoethyl diethyl methacrylate sulfate / N,N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer (Polyquaternium-52), each of which has a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C. (A2) One or more selected from the group consisting of guar hydroxypropyltrimonium chloride and cationic polymers having a cellulose skeleton, each of which has a viscosity of 20 mPa·s or more in a 1% by mass aqueous solution at 30°C. It is more preferable that component (A1) is one or more members selected from the group consisting of methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) and N,N-dimethylaminoethyl diethyl methacrylate sulfate·N,N-dimethylacrylamide·polyethylene glycol dimethacrylate copolymer (Polyquaternium-52), and it is more preferable that component (A2) is a cationic polymer having a cellulose skeleton. That is, the component (A) is more preferably selected from the group consisting of (A1) a methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C, (A2) a N,N-dimethylaminoethyl diethyl methacrylate sulfate·N,N-dimethylacrylamide·polyethylene glycol dimethacrylate copolymer (Polyquaternium-52) having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C, and The polymer is preferably one or more selected from the group consisting of (A1) a methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C, (A2) a N,N-dimethylaminoethyl diethyl methacrylate sulfate·N,N-dimethylaminoethyl diethyl methacrylate sulfate having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C, and (A3) a methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C. and (A2) one or more selected from the group consisting of methacryloylethyltrimethylammonium chloride polymer (Polyquaternium-37) having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C, N,N-dimethylaminoethyl diethyl methacrylate sulfate·N,N-dimethylacrylamide·polyethylene glycol dimethacrylate copolymer (Polyquaternium-52) having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C, and (A2) one or more selected from the group consisting of o-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride (Polyquaternium-10) having a viscosity of 20 mPa·s or more in a 1% by mass aqueous solution at 30°C.

[0029] In addition, as component (A), component (A1) and component (A2) can be used in combination. From the viewpoint of facilitating the formation of a polyion complex by interaction with component (B) and from the viewpoint of improving the lingering fragrance, the cationic charge density of component (A) is preferably 0.1 mmol / g or more, more preferably 0.2 mmol / g or more, even more preferably 0.3 mmol / g or more, and even more preferably 0.5 mmol / g or more. In addition, from the viewpoint of improving the lingering fragrance and improving the stable blending, it is preferably 20 mmol / g or less, more preferably 15 mmol / g or less, even more preferably 12 mmol / g or less, even more preferably 10 mmol / g or less, even more preferably 7.0 mmol / g or less, and even more preferably 5.0 mmol / g or less.

[0030] <Component (B): Anionic polysaccharides> Component (B) is an anionic polysaccharide, which is a polymer capable of forming a polyion complex through interaction with component (A). In this specification, "anionic polymer" means a polymer having an anionic group and substantially free of cationic and amphoteric groups. "Substantially free of cationic and amphoteric groups" means that the molar amount of cationic and amphoteric groups relative to the anionic groups is preferably 0.1% or less.

[0031] The anionic group of component (B) is preferably an acidic group such as a carboxy group, a sulfonic acid group, or a phosphoric acid group, and is more preferably a carboxy group from the viewpoint of facilitating the formation of a polyion complex through interaction with component (A) and from the viewpoint of availability. Note that in component (B), at least a part of the anionic group may be neutralized and in the form of a salt.

[0032] Specific examples of anionic polysaccharides used as component (B) include polysaccharides having carboxy groups (hyaluronic acid, alginic acid, pectinic acid, carboxymethylcellulose, xanthan gum, etc.), sulfated polysaccharides (carrageenan, keratan sulfate, dermatan sulfate, sulfated starch, heparin, heparan sulfate), and sulfonated polysaccharides (stearoxy PG hydroxyethylcellulose sulfonate), and salts thereof, and one or more of these may be used.

[0033] When component (B) is a salt, examples of the salt include alkali metal salts such as sodium salts and potassium salts, and alkaline earth metal salts, and from the viewpoint of availability, alkali metal salts are preferred.

[0034] Among the above, from the viewpoint of improving film-forming ability and improving fragrance retention, component (B) is preferably one or more selected from the group consisting of alginic acid, carboxymethyl cellulose, stearoxy PG hydroxyethyl cellulose sulfonic acid, and salts thereof, and from the viewpoint of improving film-forming ability, improving fragrance retention, and improving blend stability, it is more preferably one or more selected from the group consisting of alginic acid, stearoxy PG hydroxyethyl cellulose sulfonic acid, and salts thereof, and even more preferably one or more selected from the group consisting of sodium alginate and sodium stearoxy PG hydroxyethyl cellulose sulfonate.

[0035] The anionic charge density of component (B) is not particularly limited, but from the viewpoint of facilitating the formation of a polyion complex through interaction with component (A) and from the viewpoint of improving fragrance retention, it is preferably 0.1 mmol / g or more, more preferably 0.2 mmol / g or more, and even more preferably 0.3 mmol / g or more, and from the viewpoint of improving fragrance retention and improving blend stability, it is preferably 25 mmol / g or less, more preferably 20 mmol / g or less, even more preferably 15 mmol / g or less, still more preferably 10 mmol / g or less, and even more preferably 5.0 mmol / g or less. The anionic charge density of component (B) is the number of moles of anionic groups contained per gram of polymer. When at least a part of the anionic groups of component (B) is in the form of a neutralized salt, the number of moles of the anionic groups includes the number of moles of the anionic groups in the form of a salt. Two or more polymers may be used as component (B). In this case, the anionic charge density of component (B) is determined by calculating a weighted average from the anionic charge density and the blending amount of each polymer.

[0036] Commercially available anionic polysaccharides can also be used as component (B). Specific examples include sodium alginate such as "Kimica Algin I-3" and "Kimica Algin IL-2" manufactured by Kimica Co., Ltd., sodium stearoxy PG hydroxyethyl cellulose sulfonate such as "SPS-S-SA" manufactured by Kao Corporation, sodium carboxymethyl cellulose such as "Cellogen F-5A" and "Cellogen MP-120" manufactured by Daiichi Kogyo Seiyaku Co., Ltd., and "Sunrose F1400MC" and "Sunrose F800HC" manufactured by Nippon Paper Industries Co., Ltd.

[0037] <Ingredient (C): Fragrance> The composition of the present invention contains, as component (C), a fragrance containing at least one selected from the group consisting of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate. The monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate contained in component (C) are all compounds that act as fragrances. Examples of the monoterpene alcohols include chain monoterpene alcohols such as linalool, citronellol, geraniol, dihydrolinalool, ethyl linalool, nerol, myrcenol, lavandulol, and dihydromyrcenol; and monocyclic monoterpene alcohols such as terpineol and carveol. Examples of the cyclic monoterpenes include cyclic monoterpenes other than monoterpene alcohols, such as limonene, camphene, phellandrene, terpinene, terpinolene, cedrene, and caryophyllene. Examples of aromatic aldehydes include cinnamyl aldehyde, amyl cinnamaldehyde, and hexyl cinnamal.

[0038] From the viewpoints of the effectiveness of the effects of the present invention, improving the residual fragrance, and improving the blending stability, component (C) contains one or more types selected from the group consisting of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate, and preferably one or more types selected from the group consisting of linalool, citronellol, geraniol, limonene, hexyl cinnamal, and methyl dihydrojasmonate.

[0039] Component (C) may contain fragrance components other than monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate. From the viewpoint of the effectiveness of the effects of the present invention, the total content of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate in component (C) is preferably 10% by mass or more, more preferably 20% by mass or more, even more preferably 30% by mass or more, still more preferably 40% by mass or more, still more preferably 50% by mass or more, still more preferably 60% by mass or more, still more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 90% by mass or more, still more preferably 95% by mass or more, and 100% by mass or less.

[0040] <Water> The composition of the present invention is an aqueous composition, and therefore contains water. As the water, deionized water or distilled water is preferable. In addition, tap water, groundwater, etc. sterilized with hypochlorous acid or the like may be used as long as the stability of the composition is not impaired.

[0041] <Charge ratio> The ratio of the cationic charge of component (A) to the anionic charge of component (B) in the composition of the present invention [(A) / (B)] is 0.30 or more, preferably 0.40 or more, more preferably 0.50 or more, even more preferably 0.70 or more, even more preferably 0.80 or more, and even more preferably 0.90 or more, from the viewpoint of improving the fragrance retention and the stability of the blend. The charge ratio [(A) / (B)] is 25 or less, preferably 20 or less, more preferably 18 or less, even more preferably 16 or less, even more preferably 15 or less, even more preferably 12 or less, even more preferably 10 or less, and even more preferably 8.0 or less.

[0042] <Content> The content of each component in the composition of the present invention is preferably as follows. The content of component (A) in the composition is preferably 0.02% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and even more preferably 0.2% by mass or more, from the viewpoint of ease of forming a polyion complex and improving the lingering fragrance. Also, from the viewpoint of improving the stable blending, it is preferably 9.5% by mass or less, more preferably 8.0% by mass or less, even more preferably 7.5% by mass or less, even more preferably 5.0% by mass or less, even more preferably 2.0% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.5% by mass or less.

[0043] The content of component (B) in the composition is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, even more preferably 0.02% by mass or more, and even more preferably 0.04% by mass or more, from the viewpoint of ease of forming a polyion complex and improving the lingering fragrance. Also, from the viewpoint of improving the stable blending, it is preferably 5.0% by mass or less, more preferably 2.5% by mass or less, even more preferably 1.5% by mass or less, even more preferably 1.0% by mass or less, even more preferably 0.5% by mass or less, even more preferably 0.3% by mass or less, even more preferably 0.2% by mass or less, and even more preferably 0.1% by mass or less.

[0044] The total content of component (A) and component (B) in the composition is preferably 0.05% by mass or more, more preferably 0.08% by mass or more, even more preferably 0.10% by mass or more, still more preferably 0.20% by mass or more, still more preferably 0.30% by mass or more, and still more preferably 0.35% by mass or more, from the viewpoint of ease of forming a polyion complex and improving the fragrance retention. Also, from the viewpoint of improving the stable blending, it is preferably 10% by mass or less, more preferably 5.0% by mass or less, still more preferably 3.0% by mass or less, still more preferably 2.0% by mass or less, still more preferably 1.0% by mass or less, and still more preferably 0.60% by mass or less.

[0045] The mass ratio of component (A) to component (B) in the composition [(A) / (B)] is preferably 0.60 or more, more preferably 0.75 or more, and even more preferably 1.0 or more, from the viewpoints of ease of forming a polyion complex, improving fragrance retention, and improving blend stability, and is preferably 10 or less, more preferably 9.0 or less.

[0046] The content of component (C) in the composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.03% by mass or more, and even more preferably 0.05% by mass or more, from the viewpoint of improving the fragrance retention. Also, from the viewpoint of improving the blending stability, it is preferably 10% by mass or less, more preferably 5.0% by mass or less, even more preferably 2.5% by mass or less, even more preferably 2.0% by mass or less, even more preferably 1.5% by mass or less, and even more preferably 1.0% by mass or less.

[0047] The mass ratio of component (C) to the total amount of components (A) and (B) in the composition, [(C) / {(A)+(B)}], from the viewpoint of improving fragrance retention, is preferably 0.5 or more, more preferably 1.0 or more, and even more preferably 2.0 or more, and from the viewpoint of improving blend stability, is preferably 10.0 or less, more preferably 5.0 or less, and even more preferably 3.0 or less.

[0048] The content of water in the composition is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and even more preferably 80% by mass or more, from the viewpoint of making it an aqueous composition and improving the stability of blending. The content of water in the composition may be the balance of the components (A) to (C).

[0049] <Component (D): Nonionic polymer> From the viewpoint of improving the residual fragrance, the composition of the present invention may further contain (D) a nonionic polymer. In this specification, the term "nonionic polymer" refers to a polymer that is substantially free of ionic groups, such as cationic groups, anionic groups, and amphoteric groups. In the composition of the present invention, it is believed that the rigid crosslinked structure of the polyion complex formed by components (A) and (B) is reinforced by the complex with the long-chain, flexible non-crosslinked structure of component (D). Since hydrogen bonds are possible between components (B) and (D), it is believed that component (D) is held within the crosslinked structure by component (B), forming a stronger network in the coating. This is believed to improve the fragrance retention of the resulting composition.

[0050] Examples of component (D) include polyalkylene glycol or a derivative thereof, a polymer containing a structural unit derived from vinylpyrrolidone, a polymer containing a structural unit derived from a (meth)acrylic acid ester, polyvinyl alcohol, polyacrylamide, polycaprolactam, and the like. One or more of these can be used.

[0051] Examples of polyalkylene glycols include homopolymers or copolymers of alkylene glycols having an alkylene carbon number of 2 or more and 6 or less, preferably 2 or more and 4 or less, more preferably 2 or more and 3 or less. Specific examples thereof include polyethylene glycol, polypropylene glycol, polytrimethylene ether glycol, polytetramethylene ether glycol, polyethylene glycol-polypropylene glycol copolymer (polyoxyethylene polyoxypropylene glycol), polyethylene glycol-polytrimethylene ether glycol copolymer, polyethylene glycol-polytetramethylene ether glycol copolymer, polypropylene glycol-polytetramethylene ether glycol copolymer, etc. Among these, from the viewpoint of improving the residual fragrance, the viewpoint of improving the stable blending property, and the viewpoint of availability, it is preferably one or more selected from the group consisting of polyethylene glycol, polypropylene glycol, and polyethylene glycol-polypropylene glycol copolymer, and more preferably one or more selected from the group consisting of polyethylene glycol and polyethylene glycol-polypropylene glycol copolymer.

[0052] Examples of the polyalkylene glycol derivative include terminal modified products of the above-mentioned polyalkylene glycols, such as polyalkylene glycol monoalkyl ethers, polyalkylene glycol dialkyl ethers, polyalkylene glycol monoaryl ethers, polyalkylene glycol diaryl ethers, polyalkylene glycol monofatty acid esters, polyalkylene glycol difatty acid esters, polyalkylene glycol diglycidyl ethers, etc. Among these, from the viewpoint of improving the residual fragrance, improving the stable blending property, and from the viewpoint of availability, preferably one or more selected from the group consisting of polyalkylene glycol monoalkyl ethers, polyalkylene glycol dialkyl ethers, polyalkylene glycol monofatty acid esters, and polyalkylene glycol difatty acid esters, more preferably one or more selected from the group consisting of polyalkylene glycol monofatty acid esters and polyalkylene glycol difatty acid esters. The number of carbon atoms in the alkyl group in the mono- or dialkyl ether of polyalkylene glycol and the number of carbon atoms in the fatty acid in the mono- or difatty acid ester of polyalkylene glycol are preferably 1 or more and 36 or less, more preferably 4 or more and 32 or less, even more preferably 8 or more and 24 or less, and still more preferably 12 or more and 22 or less. The number of carbon atoms in the aryl group in the mono- or diaryl ether of polyalkylene glycol is preferably 6 or more and 36 or less, more preferably 6 or more and 32 or less, even more preferably 6 or more and 24 or less, and still more preferably 6 or more and 22 or less.

[0053] Specific examples of polyalkylene glycol derivatives include polyethylene glycol monomethyl ether, polyethylene glycol dimethyl ether, polyethylene glycol monobutyl ether, polyethylene glycol dibutyl ether, polyethylene glycol monooctyl ether, polyethylene glycol monodecyl ether, polyethylene glycol monododecyl ether, polyethylene glycol monotridecyl ether, polyethylene glycol-bisphenol A ether, polyethylene glycol dilaurate, polyethylene glycol distearate (polyethylene glycol distearate), polyethylene glycol diglycidyl ether, polyethylene glycol-polypropylene glycol-monomethyl ether, polyethylene glycol-polypropylene glycol-dimethyl ether, polyethylene glycol-polypropylene glycol-monobutyl ether, polyethylene glycol-polypropylene glycol-dibutyl ether, polyethylene glycol-polypropylene glycol-monoctyl ether, polyethylene glycol-polypropylene glycol-monodecyl ether, polyethylene glycol-polypropylene glycol-monododecyl ether, polyethylene glycol-polypropylene glycol-monotridecyl ether, polyethylene glycol-polypropylene glycol-bisphenol A ether, polyethylene glycol-polypropylene glycol-dilaurate, polyethylene glycol distearate-polypropylene glycol, and polyethylene glycol-polypropylene glycol-diglycidyl ether. One or more of these may be used.

[0054] Examples of the polymer containing a structural unit derived from vinylpyrrolidone include a homopolymer of vinylpyrrolidone and a copolymer of vinylpyrrolidone and a nonionic monomer, specific examples of which include polyvinylpyrrolidone, a vinylpyrrolidone / vinyl acetate copolymer, and a vinylpyrrolidone / methacrylamide / vinylimidazole copolymer.

[0055] Examples of the polymer containing a structural unit derived from a (meth)acrylic acid ester include a homopolymer of a (meth)acrylic acid ester and a copolymer of a (meth)acrylic acid ester with a nonionic monomer such as (meth)acrylamide, dimethylacrylamide, vinyl acetate, vinyl methyl ether, etc. Examples of the (meth)acrylic acid ester include the above-mentioned (meth)acrylic acid alkyl ester, as well as a (meth)acrylic acid hydroxyalkyl ester and a (meth)acrylic acid alkyl ether. Specific examples of polymers containing structural units derived from (meth)acrylic esters include (dimethylacrylamide / hydroxyethyl acrylate / methoxyethyl acrylate) copolymers, (hydroxyethyl acrylate / methoxyethyl acrylate) copolymers, and the like.

[0056] Of the above, from the viewpoints of improving fragrance retention, improving blend stability, and availability, component (D) is preferably one or more selected from the group consisting of polyalkylene glycol or a derivative thereof, and a polymer containing a structural unit derived from vinylpyrrolidone, more preferably one or more selected from the group consisting of polyethylene glycol, polyethylene glycol-polypropylene glycol copolymer, mono- or di-fatty acid esters thereof, and polyvinylpyrrolidone, and even more preferably polyethylene glycol.

[0057] From the viewpoint of improving the residual fragrance and improving the blending stability, the weight average molecular weight (Mw) of component (D) is preferably 2,000 or more, more preferably 5,000 or more, and even more preferably 10,000 or more, and is preferably 2,000,000 or less, more preferably 1,500,000 or less, even more preferably 1,000,000 or less, still more preferably 500,000 or less, still more preferably 200,000 or less, and even more preferably 100,000 or less. The weight average molecular weight of component (D) can be measured by gel permeation chromatography (GPC).

[0058] When the composition of the present invention contains component (D), the content of component (D) in the composition is preferably 0.02% by mass or more, more preferably 0.04% by mass or more, even more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, and still more preferably 0.3% by mass or more from the viewpoint of improving the fragrance retention. Also, from the viewpoint of improving the blending stability, the content is preferably 5.0% by mass or less, more preferably 4.0% by mass or less, still more preferably 3.0% by mass or less, and still more preferably 2.0% by mass or less.

[0059] When the composition of the present invention contains component (D), the mass ratio of component (D) to the total amount of components (A) and (B) in the composition, [(D) / {(A)+(B)}], from the viewpoint of improving fragrance retention, is preferably 0.05 or more, more preferably 0.10 or more, even more preferably 0.25 or more, still more preferably 0.50 or more, still more preferably 0.70 or more, and still more preferably 0.80 or more, and from the viewpoint of improving blend stability, is preferably 5.0 or less, more preferably 3.0 or less, even more preferably 2.0 or less, still more preferably 1.5 or less, and still more preferably 1.2 or less.

[0060] <Component (E): a non-crosslinked anionic polymer having a molecular weight of 1,000 or more and 30,000 or less, containing a structural unit derived from (meth)acrylic acid> From the viewpoint of improving the residual fragrance, the composition of the present invention may further contain (E) a non-crosslinked anionic polymer containing a constitutional unit derived from (meth)acrylic acid and having a molecular weight of 1,000 to 30,000. Note that component (E) is a polymer other than component (B). It is believed that component (E) forms hydrogen bonds with the nonionic polymer (D) complexed with the crosslinked structure in the polyion complex, thereby immobilizing component (D) within the crosslinked structure of the polyion complex formed by components (A) and (B).This effect makes it possible for component (D) to remain in the film without being washed away even when rinsing or cleaning is performed after treating an object with the composition of the present invention, and thus improves the lingering fragrance.

[0061] From the viewpoint of contributing to the fixation of component (D) and improving the fragrance retention, the molecular weight of component (E) is preferably 1,000 or more, more preferably 2,000 or more, even more preferably 5,000 or more, and still more preferably 10,000 or more, and is preferably 50,000 or less, more preferably 40,000 or less, and even more preferably 30,000 or less. The term "molecular weight" as used herein means the weight average molecular weight, which can be measured by gel permeation chromatography (GPC).

[0062] Component (E) is a non-crosslinked anionic polymer containing structural units derived from (meth)acrylic acid, preferably having a molecular weight of 1,000 or more and 50,000 or less, more preferably 1,000 or more and 30,000 or less. The non-crosslinked anionic polymer may be a homopolymer or copolymer of (meth)acrylic acid or a salt thereof that does not have a crosslinked structure. The crosslinked structure referred to here means a three-dimensional network structure in which the polymer chain, which is the main structure of the polymer, is connected within the polymer chain or between polymer chains. The method of forming the crosslinked structure is not particularly limited, and may be, for example, a method of crosslinking simultaneously with polymerization such as polycondensation or radical polymerization, or a method of crosslinking the polymer chain afterwards.

[0063] Examples of non-crosslinked anionic polymers containing a structural unit derived from (meth)acrylic acid that are preferably used as component (E) include poly(meth)acrylic acid, as well as (meth)acrylic acid / maleic acid copolymers, (meth)acrylic acid / itaconic acid copolymers, (meth)acrylic acid / fumaric acid copolymers, (meth)acrylic acid / vinyl acetate copolymers, (meth)acrylic acid / (meth)acrylic acid alkyl ester copolymers, (meth)acrylic acid / 2-hydroxyethyl methacrylate copolymers, acrylic acid / acrylic acid alkyl ester / (N-alkyl)acrylamide copolymers, and salts thereof. One or more of these may be used. Among the above, from the viewpoint of improving the lingering fragrance, the component (E) is preferably at least one selected from the group consisting of poly(meth)acrylic acid, (meth)acrylic acid / (meth)acrylic acid alkyl ester copolymers, and salts thereof.

[0064] Examples of poly(meth)acrylic acid or a salt thereof include polyacrylic acid, polymethacrylic acid, and salts thereof, with polyacrylic acid or a salt thereof being preferred. The (meth)acrylic acid / (meth)acrylic acid alkyl ester copolymer or its salt is more preferably acrylic acid / acrylic acid alkyl ester or its salt. The (meth)acrylic acid alkyl ester includes (meth)acrylic acid alkyl esters having an alkyl carbon number of preferably 1 or more, more preferably 4 or more, even more preferably 8 or more, still more preferably 12 or more, and preferably 40 or less, more preferably 36 or less, even more preferably 32 or less, still more preferably 24 or less. The (meth)acrylic acid / (meth)acrylic acid alkyl ester is preferably an acrylic acid / acrylic acid alkyl ester, more preferably one or more selected from the group consisting of an (acrylic acid / octyl acrylate) copolymer and an (acrylic acid / stearyl acrylate) copolymer, and even more preferably an (acrylic acid / stearyl acrylate) copolymer.

[0065] When component (E) is a salt, examples of the salt include alkali metal salts such as sodium salts and potassium salts, and alkaline earth metal salts, and from the viewpoint of availability, alkali metal salts are preferred.

[0066] The anionic charge density of component (E) is not particularly limited, but from the viewpoint of improving the residual fragrance, it is preferably 1.0 mmol / g or more, more preferably 3.0 mmol / g or more, even more preferably 5.0 mmol / g or more, and is preferably 25 mmol / g or less, more preferably 20 mmol / g or less, even more preferably 15 mmol / g or less. Two or more polymers may be used as component (E). In this case, the anionic charge density of component (E) is determined by calculating a weighted average from the anionic charge density and the blending amount of each polymer.

[0067] When the composition contains component (E), the content of component (E) in the composition is, from the viewpoint of improving fragrance retention, preferably 0.001% by mass or more, more preferably 0.002% by mass or more, and even more preferably 0.005% by mass or more, and from the viewpoint of improving blend stability, preferably 1.0% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.2% by mass or less, and even more preferably 0.1% by mass or less.

[0068] When the composition contains component (D) and component (E), the mass ratio of component (E) to component (D) in the composition [(E) / (D)], from the viewpoint of improving fragrance retention and improving blend stability, is preferably 0.005 or more, more preferably 0.01 or more, and is preferably 0.50 or less, more preferably 0.20 or less, even more preferably 0.10 or less, still more preferably 0.05 or less, and still more preferably 0.03 or less.

[0069] <Component (F): Cationic surfactant> The composition of the present invention may further contain (F) a cationic surfactant from the viewpoint of imparting a good feel to the object to be treated. Examples of component (F) include (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium salts, (iii) dialkyldimethylammonium salts, (iv) alkylamidoalkyltrimethylammonium salts, (v) alkyldimethylamines and salts thereof, (vi) alkoxyalkyldimethylamines and salts thereof, and (vii) alkylamidoalkyldimethylamines and salts thereof.

[0070] (i) Examples of alkyltrimethylammonium salts include alkyltrimethylammonium salts having an alkyl group preferably having 12 to 24 carbon atoms, more preferably 16 to 24 carbon atoms. Specific examples include cetyltrimethylammonium chloride (cetrimonium chloride), stearyltrimethylammonium chloride (steartrimonium chloride), behenyltrimethylammonium chloride (behentrimonium chloride), and the like. (ii) Examples of the alkoxyalkyltrimethylammonium salt include alkoxyalkyltrimethylammonium salts having an alkoxy group preferably having from 12 to 22 carbon atoms, more preferably from 16 to 20 carbon atoms. Specific examples include stearoxypropyltrimethylammonium chloride, stearoxyethyltrimethylammonium chloride, and stearoxyhydroxypropyltrimethylammonium chloride. (iii) Examples of dialkyldimethylammonium salts include dialkyldimethylammonium salts having an alkyl group preferably having 12 to 22 carbon atoms, more preferably 16 to 20 carbon atoms, and specifically include distearyldimethylammonium chloride. (iv) Examples of alkylamidoalkyltrimethylammonium salts include alkylamidoalkyltrimethylammonium salts having preferably an alkyl group having 11 to 21 carbon atoms, more preferably 13 to 19 carbon atoms, and specifically include palmitamidopropyltrimethylammonium chloride (palmitamidopropyltrimonium chloride), etc.

[0071] (v) Alkyldimethylamine, (vi) alkoxyalkyldimethylamine, and (vii) alkylamidoalkyldimethylamine react with an acid to form a tertiary amine salt, which becomes a cationic surfactant. The alkyl group in the (v) alkyldimethylamine and salts thereof, and the alkoxy group in the (vi) alkoxyalkyldimethylamine and salts thereof are preferably alkyl groups having 12 or more and 22 or less carbon atoms, more preferably 16 or more and 20 or less carbon atoms. (vii) The alkyl group of the alkylamide moiety in the alkylamidoalkyldimethylamine and its salt is preferably an alkyl group having 11 or more and 21 or less carbon atoms, more preferably 15 or more and 19 or less carbon atoms.

[0072] The amines (v) to (vii) may be reacted with an acid in advance and added to the composition as a salt, or may be added to the composition as an amine and then added to the composition to form a salt in the composition. Therefore, the above amines and their salts are defined as cationic surfactants here. The content or amount of the amine is calculated based on the mass of the amine. Examples of the salts of amines (v) to (vii) include salts with organic or inorganic acids. Examples of 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; and acidic amino acids such as glutamic acid and aspartic acid. Examples of inorganic acids include hydrochloric acid, sulfuric acid, and phosphoric acid. Among these, organic acids are preferred, and one or more selected from the group consisting of dicarboxylic acids, hydroxycarboxylic acids, and acidic amino acids are more preferred. The dicarboxylic acids are more preferred, and one or more selected from the group consisting of maleic acid and succinic acid. The hydroxycarboxylic acids are more preferred, and one or more selected from the group consisting of glycolic acid, lactic acid, and malic acid. The acidic amino acids are more preferred, and glutamic acid.

[0073] (v) Examples of alkyldimethylamines and their salts include N,N-dimethylbehenylamine, N,N-dimethylstearylamine, and organic acid salts thereof. Preferred are N,N-dimethylbehenylamine lactate salt, N,N-dimethylstearylamine glycolate salt, and the like.

[0074] (vi) Examples of alkoxyalkyldimethylamines and salts thereof include N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxypropylamine, and organic acid salts thereof. Of these, N,N-dimethyl-3-hexadecyloxypropylamine or a lactate thereof, and N,N-dimethyl-3-octadecyloxypropylamine (stearoxypropyldimethylamine) or a lactate thereof are preferred.

[0075] (vii) Examples of alkylamidoalkyldimethylamines and salts thereof include N-[3-(dimethylamino)propyl]docosanamide, N-[3-(dimethylamino)propyl]stearamide, and organic acid salts thereof. Of these, a lactate salt of N-[3-(dimethylamino)propyl]docosanamide and a glycolate salt of N-[3-(dimethylamino)propyl]stearamide are preferred.

[0076] The component (F) can be used alone or in combination of two or more. Among the above, from the viewpoint of imparting a good feel to the object to be treated, the component (F) is preferably at least one selected from the group consisting of (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium salts, (iii) dialkyldimethylammonium salts, (iv) alkylamidoalkyltrimethylammonium salts, (v) alkyldimethylamines and salts thereof, (vi) alkoxyalkyldimethylamines and salts thereof, and (vii) alkylamidoalkyldimethylamines and salts thereof, and more preferably (i) alkyltrimethylammonium salts and (vi) alkoxyalkyldimethylamines. and salts thereof, more preferably at least one selected from the group consisting of cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, N,N-dimethyl-3-hexadecyloxypropylamine or a lactate thereof, and N,N-dimethyl-3-octadecyloxypropylamine (stearoxypropyldimethylamine) or a lactate thereof, and even more preferably at least one selected from the group consisting of cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, and behenyltrimethylammonium chloride.

[0077] When the composition of the present invention contains component (F), the content of component (F) in the composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, and still more preferably 0.5% by mass or more from the viewpoint of imparting a good feel to the treated object. Also, from the viewpoint of improving the stable blending, the content is preferably 10% by mass or less, more preferably 5.0% by mass or less, and still more preferably 3.0% by mass or less.

[0078] <Component (G): Higher alcohol> The composition of the present invention may further contain (G) a higher alcohol from the viewpoint of imparting a good feel to the object to be treated. Component (G) includes an aliphatic monohydric alcohol having 12 or more carbon atoms, preferably 12 to 22 carbon atoms. Examples of the higher alcohol include 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. Among the above, from the viewpoint of imparting a good feel to the object to be treated, one or more alcohols selected from the group consisting of cetyl alcohol, myristyl alcohol, stearyl alcohol, and behenyl alcohol are preferred.

[0079] When the composition of the present invention contains component (G), the content of component (G) in the composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, still more preferably 2.0% by mass or more, and still more preferably 5.0% by mass or more from the viewpoint of imparting a good feel to the treated object. Also, from the viewpoint of improving the stable blending, the content is preferably 20% by mass or less, more preferably 15% by mass or less, and still more preferably 10% by mass or less.

[0080] <Component (H): Oil> The composition of the present invention may further contain an oil (H) from the viewpoint of imparting a good feel to the object to be treated. Component (H) is an oil other than components (C) and (G). Examples of component (H) include (a) silicone oil, (b) ester oil, (c) ether oil, (d) hydrocarbon oil, (e) higher fatty acid, (f) wax, etc., and one or more of these can be used. Among the above, from the viewpoint of imparting a good feel to the object to be treated, it is preferably one or more selected from the group consisting of (a) silicone oil, (b) ester oil, (d) hydrocarbon oil, and (e) higher fatty acid, and more preferably (b) ester oil, from the viewpoint of imparting a good feel to the object to be treated.

[0081] (b) Examples of the ester oil include synthetic ester oils and natural fats and oils, such as esters of monovalent carboxylic acids and monovalent alcohols, esters of monovalent carboxylic acids and polyvalent alcohols, and esters of polyvalent carboxylic acids and monovalent alcohols.

[0082] Examples of the ester of a monovalent carboxylic acid and a monohydric alcohol include the ester represented by the following general formula (11). R 11 -COO-R 12 (11) In the general formula (11), R 11 represents a linear or branched alkyl or alkenyl group having 1 to 25 carbon atoms, or an aromatic hydrocarbon group having 6 to 24 carbon atoms, which may be substituted with a hydroxyl group; R 12 represents a linear or branched alkyl or alkenyl group having 1 to 30 carbon atoms.

[0083] R 11 When is an alkyl group or an alkenyl group, it preferably has 7 or more carbon atoms and preferably has 23 or less, more preferably 21 or less, even more preferably 19 or less, and still more preferably 17 or less. R 11 When is an aromatic hydrocarbon group, the number of carbon atoms is preferably 6 or more and preferably 22 or less, more preferably 20 or less. R 12 The number of carbon atoms is preferably 2 or more, and is preferably 28 or less, more preferably 24 or less, and further preferably 20 or less. Even more preferably, in the general formula (11), R 11 is a linear or branched alkyl group having 7 to 17 carbon atoms; R 12 is an ester in which the alkyl group is a straight or branched alkyl group having from 2 to 24 carbon atoms.

[0084] Specific examples of the ester represented by the general formula (11) include cetyl isooctanoate, stearyl isooctanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isocetyl myristate, isostearyl myristate, 2-octyldodecyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, and isostearyl palmitate. Examples of the alkyl esters include one or more selected from the group consisting of allyl, 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, methyl castor oil fatty acid (methyl ricinoleate), and alkyl benzoate (alkyl having 12 to 15 carbon atoms).

[0085] Examples of the ester of a monovalent carboxylic acid and a monohydric alcohol include an ester represented by the following general formula (12). R 13 -COO-(AO) n -R 14 (12) In the general formula (12), R 13 represents a linear or branched alkyl or alkenyl group having 1 to 25 carbon atoms, which may be substituted with a hydroxyl group; R 14 represents an aromatic hydrocarbon group having 6 to 24 carbon atoms, AO represents an alkyleneoxy group having 2 to 4 carbon atoms, and n represents the average number of moles added of 1 to 50. R 13 is preferably an alkyl group having 7 or more carbon atoms and preferably 23 or less, more preferably 21 or less, and even more preferably 19 or less. R 14 is preferably an aromatic-containing hydrocarbon group having 6 or more carbon atoms and preferably 22 or less, more preferably 20 or less, even more preferably 18 or less, and still 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. Specific examples of the ester represented by general formula (12) include an ester of myristic acid and a 3-mol propylene oxide adduct of benzyl alcohol ("Crodamol STS"), and an ester of 2-ethylhexanoic acid and a 3-mol propylene oxide adduct of benzyl alcohol ("Crodamol SFX"), etc.

[0086] Examples of the ester of a monovalent carboxylic acid and a polyhydric alcohol include the ester represented by the following general formula (13). R 15 -(OCOR 16 ) p (13) In the general formula (13), R 15 represents a polyhydric alcohol residue, preferably a hydrocarbon group having 2 to 10 carbon atoms; R 16 represents a monovalent carboxylic acid residue having 1 to 25 carbon atoms, and p represents an integer of 2 to 10. In addition, R 15 may have an ether bond, but is preferably a linear or branched hydrocarbon group having from 2 to 10 carbon atoms. Also, p is the same number as the number of hydroxy groups in the polyhydric alcohol. R 16 is preferably an alkyl group having 7 or more carbon atoms, and from the same viewpoint as above, preferably 23 or less, more preferably 21 or less, and even more preferably 19 or less. Even more preferably, in the general formula (13), R 15 is a glycerin residue or a pentaerythritol residue, and R 16 is an ester in which the alkyl group has 7 to 19 carbon atoms.

[0087] Specific examples of the ester represented by the general formula (13) include propylene glycol dicaprate, propylene glycol dioleate, neopentyl glycol dicaprate, neopentyl glycol di-2-ethylhexanoate, propanediol di(caprylic / capric acid), propanediol diisostearate, ethylene glycol di-2-ethylhexanoate, glyceryl tri(caprylic / capric acid), glyceryl tri-2-ethylhexylate, glyceryl tri-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, and natural fats and oils. Examples of 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.

[0088] Examples of the esters of polyvalent carboxylic acids and monohydric alcohols include esters represented by the following general formula (14). R 17 -(COOR 18 ) q (14) In the general formula (14), R 17 is a polycarboxylic acid residue having 2 to 10 carbon atoms, and R 18 represents a monohydric alcohol residue having 1 to 24 carbon atoms, and q is an integer of 2 to 10. In addition, q is the same number as the number of carboxy groups possessed by the polycarboxylic acid. R 18 has preferably 3 or more carbon atoms, more preferably 6 or more carbon atoms, and from the same viewpoint as above, preferably 22 or less, more preferably 20 or less, even more preferably 18 or less carbon atoms. Even more preferably, in the general formula (14), R 17 is a trimellitic acid residue, and R 18 is an ester having a branched chain alkyl group having 6 to 18 carbon atoms.

[0089] Specific examples of the ester represented by the general formula (14) include diisostearyl malate, di-2-ethylhexyl succinate, diisobutyl adipate, di-2-heptylundecyl adipate, di-2-ethylhexyl sebacate, diisopropyl sebacate, and tri-2-ethylhexyl trimellitate.

[0090] Among these, from the viewpoint of imparting a good feel to the treated object, preferred are esters of a monovalent carboxylic acid and a monohydric alcohol represented by general formula (11), esters of a monovalent carboxylic acid and a polyhydric alcohol represented by general formula (13), or esters of a polyvalent carboxylic acid and a monohydric alcohol represented by general formula (14), more preferred are esters of a monovalent carboxylic acid and a monohydric alcohol represented by general formula (11), and even more preferred are cetyl isooctanoate, stearyl isooctanoate, isononyl isononanoate, isotridecyl isononanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isocetyl myristate, isosuctyl myristate, The alkyl esters are at least one selected from the group consisting of tearyl, 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, methyl castor oil fatty acid (methyl ricinoleate), and alkyl benzoate (alkyl carbon number: 12 to 15), and even more preferably at least one selected from the group consisting of isopropyl myristate and isopropyl palmitate.

[0091] When the composition of the present invention contains component (H), the content of component (H) in the composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more from the viewpoint of imparting a good feel to the treated object. Also, from the viewpoint of improving the stable blending, the content is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and even more preferably 5.0% by mass or less.

[0092] <Component (I): Acid> From the viewpoint of improving blend stability, the composition of the present invention preferably further contains an acid (I). As component (I), an organic acid or an inorganic acid can be used, and from the viewpoint of using the composition of the present invention as a cosmetic composition, an organic acid is preferred. The organic acid includes carboxylic acid compounds and sulfonic acid compounds other than components (B) and (E), and is preferably a compound having a molecular weight of 500 or less, more preferably 200 or less.

[0093] Examples of carboxylic acid compounds include aliphatic monocarboxylic acids having 4 or less carbon atoms, such as acetic acid, propionic acid, butanoic acid, etc.; aromatic monocarboxylic acids, such as benzoic acid; aliphatic dicarboxylic acids, such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, etc.; aromatic dicarboxylic acids, such as phthalic acid, isophthalic acid, etc.; polycarboxylic acids, such as polyglutamic acid; hydroxycarboxylic acids, such as lactic acid, malic acid, glycolic acid, hydroxyacrylic acid, glyceric acid, tartaric acid, citric acid, etc.; acidic amino acids, such as glutamic acid, aspartic acid, etc.; and the like. One or more of these may be used. Examples of the sulfonic acid compound include aliphatic sulfonic acids such as methanesulfonic acid and ethanesulfonic acid; aromatic sulfonic acids such as p-toluenesulfonic acid and naphthalenesulfonic acid; and the like. One or more of these can be used.

[0094] From the viewpoint of improving blend stability and from the viewpoint of using the composition of the present invention as a cosmetic composition, 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 one or more selected from the group consisting of succinic acid, lactic acid, malic acid, glycolic acid, p-toluenesulfonic acid, and naphthalenesulfonic acid, even more preferably one or more selected from the group consisting of succinic acid and lactic acid, and even more preferably lactic acid. At least a part of the organic acid may be in the form of an organic acid salt when blended. As the salt of the organic acid, from the viewpoints of use in a cosmetic composition and availability, an alkali metal salt or alkaline metal salt of the organic acid is preferable, an alkali metal salt is more preferable, one or more selected from the group consisting of a sodium salt and a potassium salt are even more preferable, and a sodium salt is even more preferable. From the viewpoint of improving the blending stability, the proportion of the organic acid salt in the total amount of the organic acid and the organic acid salt is preferably 50% by mass or less, more preferably 20% by mass or less, and even more preferably 5% by mass or less, and may be 0% by mass. The proportion (% by mass) of the organic acid salt referred to here means the % by mass converted into the organic acid.

[0095] When the composition of the present invention contains component (I), from the viewpoint of improving the stable blending ability, the content of component (I) in the composition is preferably 0.01 mass% or more, more preferably 0.02 mass% or more, even more preferably 0.05 mass% or more, still more preferably 0.1 mass% or more, and is preferably 5.0 mass% or less, more preferably 3.0 mass% or less, even more preferably 2.0 mass% or less, and still more preferably 1.0 mass% or less. However, when the composition of the present invention contains any one of (v) alkyldimethylamines and their salts, (vi) alkoxyalkyldimethylamines and their salts, and (vii) alkylamidoalkyldimethylamines and their salts as the (F) cationic surfactant, the content of component (I) in the emulsion composition may be more than 5.0% by mass. This is because the presence of component (I) as a counter anion of the amine is expected to improve the composition's stable blendability and the feel of the treated object.

[0096] <Component (J): Aqueous medium> The composition of the present invention may further contain (J) an aqueous medium in order to improve the dispersibility of (G) a higher alcohol and (H) an oil agent in water when they are blended. Component (J) is an aqueous medium other than water. Examples of the component (J) include lower alcohols such as ethanol and isopropyl alcohol, and 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 be used alone or in combination of two or more.

[0097] When the composition of the present invention contains component (J), the content of component (J) in the composition is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more, from the viewpoint of exerting the effect of adding component (J). Also, from the viewpoint of improving the stable blending, the content is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, and even more preferably 5.0% by mass or less.

[0098] In addition, the composition of the present invention may contain, as optional components, surfactants other than component (F), pH adjusters other than component (I), texture improvers, colorants, antioxidants, antidandruff agents, vitamins, bactericides, anti-inflammatory agents, preservatives, chelating agents, moisturizers, pearl agents, ceramides, plant extracts, ultraviolet absorbers, etc.

[0099] <ph> The composition of the present invention has a pH at 25° C. of an aqueous solution obtained by diluting the composition 20 times with water, from the viewpoint of improving fragrance retention, of preferably 3.0 or more, more preferably 3.2 or more, and from the viewpoint of blend stability, of preferably 7.5 or less. The above pH can be measured using a pH meter according to the method described in the Examples.

[0100] <Form of composition> The composition of the present invention is an aqueous composition, and preferably contains 50% by mass or more of water. The composition of the present invention may be in the form of an emulsion composition. From the viewpoint of being an aqueous composition and improving the feeling of use, the emulsion composition is preferably an oil-in-water emulsion composition.

[0101] [Method of producing the composition] The method for producing the composition of the present invention is not particularly limited, but from the viewpoint of improving the stable blending property and the manufacturing efficiency, the method for producing the composition of the present invention preferably includes a step of mixing a mixture containing component (A) and component (B) or a solution containing component (A) and component (B) with component (C) or a solution containing component (C). More specifically, it is more preferable to include a step of previously preparing a solution containing component (A) and component (B) and mixing the solution with component (C). The mixing conditions for mixing the components (A) to (C) are not particularly limited, and the mixing can usually be carried out at 5 to 60° C. for 0.1 to 12 hours using a known stirring device.

[0102] When the composition of the present invention contains (D) a nonionic polymer, (E) a predetermined anionic polymer, (F) a cationic surfactant, (G) a higher alcohol, (H) an oil, (I) an acid, and (J) an aqueous medium, these components (D) to (J) can be added at any stage. However, from the viewpoint of improving blend stability, when the composition contains one or more selected from the group consisting of (F) a cationic surfactant, (G) a higher alcohol, and (H) an oil, it is preferable to have a process of previously preparing a solution containing component (A) and component (B) and mixing the solution with a solution containing components (F), (G), (H), (J) or a mixture thereof. In addition, when the composition contains one or more selected from the group consisting of (D) a nonionic polymer, (E) a specified anionic polymer, (I) an acid, and (J) an aqueous medium, from the viewpoint of improving the stability of the composition, it is preferable to have a step of mixing component (A) with a solution containing component (B) and components (D), (E), (I), (J) or a mixture thereof. From the viewpoint of suppressing the volatilization of the (C) fragrance, it is preferable in either case to mix the (C) fragrance last.

[0103] [Cosmetic composition] The present invention further provides a cosmetic composition comprising the aqueous composition. By applying the cosmetic composition of the present invention to an object to be treated, it is possible to impart excellent residual fragrance to the object. The content of the aqueous composition in the cosmetic composition is preferably 50% by mass or more, more preferably 70% by mass or more, even more preferably 80% by mass or more, and even more preferably 90% by mass or more and 100% by mass or less. The aqueous composition may be used as it is as a cosmetic composition.

[0104] The types of cosmetic compositions include hair cosmetic compositions and skin cosmetic compositions, with hair cosmetic compositions being preferred. Among the cosmetic compositions, examples of the product form of the hair cosmetic composition include hair shampoo, hair rinse, hair conditioner, hair treatment (including leave-in type), hair styling agent, hair color, permanent agent, etc. Among these, from the viewpoint of the effectiveness of the effects of the present invention, hair conditioner, hair treatment, or hair styling agent is preferable. Examples of product forms of the skin cosmetic composition include body soap, face wash, bath additives, deodorant preparations, makeup cosmetics, sunscreens, makeup bases, milky lotions, beauty essences, and creams. EXAMPLES

[0105] The present invention will be described below with reference to examples, but the present invention is not limited to the scope of the examples. Measurements and evaluations in the examples were carried out by the following methods.

[0106] (Measurement of Viscosity of 1% by Mass Aqueous Solution of Cationic Polymer) A 1% by mass aqueous solution of the cationic polymer (component (A) or component (A')) used in each example was prepared, and the viscosity of the aqueous solution was measured at 30°C using a B-type viscometer (TVB-10, manufactured by Toki Sangyo Co., Ltd.). In the present examples, cationic polymers other than component (A) are referred to as "component (A')".

[0107] (pH measurement) Each composition was diluted 20 times with water, and the pH at 25° C. was measured using a pH meter (F-51, manufactured by Horiba, Ltd.).

[0108] (Fragrance Lingering Evaluation) A Japanese hair tress measuring 20 cm in length and weighing 20 g was divided into two equal parts and a comparative evaluation was carried out. One of the tresses was wetted with water, and 1 mL of plain shampoo with the following composition was applied and lathered for 30 seconds. After rinsing with tap water for 15 seconds, 0.5 g of the composition described in the Examples and Comparative Examples (Tables 2 to 4) was applied to the tresses and allowed to soak for 1 minute. Next, the tresses were rinsed with tap water for 10 seconds while running fingers through them. After towel drying, they were dried with cold air using a hair dryer. In addition, using the other tress, a control composition was prepared by blending the same single fragrance (linalool, hexyl cinnamal, citronellol, methyl dihydrojasmonate, limonene, or geraniol) as used in the examples and comparative examples (Tables 2-3) as the fragrance in the standard composition shown in Table 1, and the tress was treated in the same manner as above using this composition. Regarding the composition of Example 15 (Table 4), a control composition was prepared by blending the same fragrance (Table 5) as used in Example 15 as the fragrance in the standard composition shown in Table 4, and the tress was treated in the same manner as above using this composition. The fragrance lingering was evaluated by three fragrance expert panelists on the fragrance intensity of the tress immediately after drying on a 7-point scale, and the average scores of the three panelists are shown in Tables 2 to 4. In this case, the fragrance intensity of the tress immediately after drying treated with the control composition was assigned a standard score of "3." [Evaluation Criteria] 6: Very high 5: High 4: Slightly high 3: Standards 2: Slightly low 1: Low 0: Very low

[0109] [Plain shampoo composition] *The amount of active ingredient is the amount of active ingredient. (Mass %) Polyoxyethylene (2.0) Lauryl Ether Sulfate Sodium (*1): 15.5 Lauric acid diethanolamide (*2): 2.2 Disodium edetate: 0.15 Sodium benzoate: 0.18 Oxybenzone: 0.03 Phosphoric acid: 0.07 Sodium chloride: 0.8 Fragrance: 0.4 Purified water: Remaining amount Total: 100.00 (*1) 42.0% by mass as Emeral E-27C (manufactured by Kao Corporation, active ingredient 27% by mass) (*2) Aminone C-11S (Kao Corporation), active ingredient content 100% by mass

[0110] [Table 1]

[0111] The ingredients listed in Table 1 are as follows. The blending amount (mass %) listed in the table is the amount of active ingredient of each ingredient, except for 90% lactic acid. *1: Stearyl trimethyl ammonium chloride, Kao Corporation, "Cotamine 86P Concentrate" *2: Stearyl alcohol, Kao Corporation, "Kalcol 8098" *3: Isopropyl palmitate, Kao Corporation, "Excepearl IPP" *4: Linalool, hexyl cinnamal, citronellol, methyl dihydrojasmonate, limonene, or geraniol (single fragrance) *5: 90% lactic acid, manufactured by PURAC Thailand Ltd., "PURAC ULTRAPURE90"

[0112] (Evaluation of compatibility) The next day after the compositions described in the Examples and Comparative Examples (Tables 2 to 4) were prepared, the presence or absence of aggregates was visually confirmed, and the blending stability was evaluated according to the following criteria. [Evaluation Criteria] A: No aggregates are observed B: Very few aggregates are observed C: Aggregates are clearly visible

[0113] Examples 1 to 15 and Comparative Examples 1 to 12 (Preparation and Evaluation of Compositions) Using the components shown in Tables 2 to 4, 300 g of a composition (hair conditioner) was prepared according to the following procedure. <Process 1> 15 g of water was placed in a beaker, and in Examples 1 to 15 and Comparative Examples 2 to 12, an anionic polymer (component (B) or component (B')) previously dispersed in dipropylene glycol (J) was added, and the mixture was heated and stirred at 60°C using a stirring device (mechanical stirrer equipped with one propeller blade). In Examples 7 to 10, after confirming that the anionic polymer was completely dissolved, a nonionic polymer (D) was added and completely dissolved. Lactic acid (I) was added thereto and stirred, and in Examples 7 to 10, an anionic polymer (component (E)) was further added and stirred. Next, a dispersion (polymer concentration: 2.4 mass%) obtained by previously dispersing a cationic polymer (component (A) or component (A')) in water was added, and the mixture was stirred until completely mixed to prepare a mixture. <Process 2> The remaining amount of water was placed in another 500 mL beaker and heated and stirred at 60°C. An oily phase obtained by previously mixing (F) cationic surfactant, (G) higher alcohol, and (H) oil agent shown in Tables 2 to 4 and dissolving at 80°C was added thereto and stirred at 62°C for 10 minutes. After stirring for 10 minutes, heating was stopped and air cooling was started. The mixture obtained in <Step 1> was added thereto and cooled with stirring until the liquid temperature reached 40°C or less. Furthermore, a fragrance shown in Tables 2 to 4 (C) was added thereto to obtain a hair conditioner. The obtained compositions were evaluated by the above-mentioned methods, and the results are shown in Tables 2 to 4.

[0114] [Table 2]

[0115] [Table 3]

[0116] The ingredients listed in Tables 2 and 3 are as follows: The blending amounts (mass %) listed in the tables are the effective amounts of each ingredient, except for 90% lactic acid. <Component (A): Cationic polymer> (Component (A1)) *1 Polyquaternium-52 (N,N-dimethylaminoethyl diethyl methacrylate sulfate / N,N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer), Kao Corporation's "SOFCARE KG-101W-E", active ingredient content 2.4% by mass *2 Polyquaternium-37 (methacryloylethyltrimethylammonium chloride polymer), "Cosmedia Ultragel 300" manufactured by BASF Japan Ltd., content of the structural unit represented by the general formula (1): 100 mol%

[0117] (Component (A2)) *3 Polyquaternium-10 (hydroxyethyl cellulose hydroxypropyl trimethyl ammonium chloride ether), Kao Corporation's "Poise C-80M" *4 Guar hydroxypropyltrimonium chloride, Solvay, "Jaguar C500" *5 Guar hydroxypropyltrimonium chloride, Solvay's "Jaguar C17" *6 Guar hydroxypropyltrimonium chloride, Solvay's "Jaguar C13S"

[0118] <Component (A'): Cationic polymer other than component (A)> *7 (Acrylamidopropyltrimonium chloride / acrylic acid amide) copolymer, "Salcare SC60" manufactured by BASF Japan Ltd. *8 Polyquaternium-6 (dimethyldiallylammonium chloride polymer), "Marcoat 100" manufactured by Lubrizol Advanced Materials, Inc., active ingredient content 41.5% by mass *9 Polyquaternium-22 (dimethyldiallylammonium chloride-acrylic acid copolymer liquid), "Marcoat 295" manufactured by Lubrizol Advanced Materials, Inc., active ingredient amount 37% by mass

[0119] <Component (B): Anionic polysaccharides> *10 Sodium alginate, Kimika Algin I-3, manufactured by Kimika Co., Ltd. *11 Sodium stearoxy PG hydroxyethyl cellulose sulfonate, Kao Corporation "SPS-S-SA" *12 Sodium carboxymethylcellulose, "Cellogen F-5A" manufactured by Daiichi Kogyo Seiyaku Co., Ltd. *13 Gum arabic, DSP "Gum Arabic HP Powder" manufactured by Gokyo Food & Chemical Co., Ltd.

[0120] <Component (B'): Anionic polymer other than component (B)> *14 Acrylates copolymer, Lubrizol Advanced Materials' "Carbopol Aqua SF-1", active ingredient content 30% by mass *15 (Methyl vinyl ether / maleic acid) copolymer, Ashland Japan Co., Ltd. "Gantrez 169N" *16 (Acrylates / Alkyl Acrylate (C10-30)) Crosspolymer, "Pemulen TR-1" manufactured by Lubrizol Advanced Materials *17 Polyacrylic acid, "Acusol 455G" manufactured by Dow Chemical Japan Co., Ltd.

[0121] <Component (D): Nonionic polymer> *18 Polyethylene glycol, Aoki Oil Industries Co., Ltd. "Brownon PEG-20000S", Mw: 20,000 <Component (E): a non-crosslinked anionic polymer having a molecular weight of 1,000 or more and 30,000 or less, containing a structural unit derived from (meth)acrylic acid> *19 (Acrylic acid / stearyl acrylate) copolymer, Kao Corporation's "SOFCARE SA-37W", Mw: 20,000, active ingredient amount: 10% by mass <Component (F): Cationic surfactant> *20 Steartrimethylammonium chloride, Kao Corporation's "Cotamine 86P Concentrate", active ingredient content 63% by mass <Component (G): Higher alcohol> *21 Stearyl alcohol, Kao Corporation's "Kalcol 8098" <Component (H): Oil> *22 Isopropyl palmitate, Kao Corporation's "Excepearl IPP" <Component (I): Acid> *23 90% lactic acid, PURAC ULTRAPURE90 manufactured by PURAC Thailand Ltd. <Component (J): Aqueous medium> *24 Dipropylene glycol, ADEKA Corporation "DPG-RF"

[0122] [Table 4]

[0123] [Table 5]

[0124] The ingredients listed in Table 4 are as follows. The blending amounts (mass%) listed in the table are the effective amounts of each ingredient, except for 90% lactic acid. *1 Polyquaternium-52 (N,N-dimethylaminoethyl diethyl methacrylate sulfate / N,N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer), Kao Corporation's "SOFCARE KG-101W-E", active ingredient content 2.4% by mass *2 Sodium alginate, "Kimika Algin I-3" manufactured by Kimika Co., Ltd. *3 Steartrimethylammonium chloride, Kao Corporation's "Cotamin 86P Concentrate", active ingredient content 63% by mass *4 Stearyl alcohol, Kao Corporation's "Kalcol 8098" *5 Isopropyl palmitate, Kao Corporation's "Exepar IPP" *6 Fragrance with the composition listed in Table 5 *7 90% lactic acid, PURAC ULTRAPURE90 manufactured by PURAC Thailand Ltd. *8 Dipropylene glycol, ADEKA Corporation "DPG-RF"

[0125] As shown in Tables 2 to 4, hair treated with the composition of this example has excellent fragrance retention. In addition, the composition of this example also has stable blending properties. [Industrial Applicability]

[0126] According to the present invention, there is provided an aqueous composition for treating fibers or keratinous materials, which can exhibit excellent residual fragrance on treated fibers or keratinous materials even when a fragrance that is difficult to encapsulate is used. The composition can be used as various cosmetic compositions such as hair cosmetic compositions and skin cosmetic compositions.< / ph>

Claims

1. The following components (A) to (C): (A) One or more cationic polymers selected from the group consisting of (A1) cationic polymers having a viscosity of 500 mPa·s or more in a 1% by mass aqueous solution at 30°C and containing a structural unit represented by the following general formula (1), and (A2) cationized polysaccharides having a viscosity of 20 mPa·s or more in a 1% by mass aqueous solution at 30°C: 【Chemistry 1】 In formula (1), R １ is a hydrogen atom or a methyl group, and R ２ ~R ４ are each independently an alkyl group having 1 to 4 carbon atoms, X is —O— or —NH—, and m is a number of 1 to 4. (B) Anionic polysaccharides (C) A fragrance containing at least one selected from the group consisting of monoterpene alcohols, cyclic monoterpenes, aromatic aldehydes, and methyl dihydrojasmonate. and water, An aqueous composition for treating fibers or keratinous materials, wherein the ratio of the cationic charge of component (A) to the anionic charge of component (B) [(A) / (B)] is 0.30 or more and 25 or less.

2. 2. The composition of claim 1, wherein component (C) comprises one or more selected from the group consisting of linalool, citronellol, geraniol, limonene, hexyl cinnamal, and methyl dihydrojasmonate.

3. 2. The composition according to claim 1, wherein the component (B) is at least one selected from the group consisting of alginic acid, carboxymethyl cellulose, stearoxy PG hydroxyethyl cellulose sulfonic acid, and salts thereof.

4. 2. The composition according to claim 1, wherein the mass ratio of component (A) to component (B) in the composition [(A) / (B)] is 0.60 or more and 10 or less.

5. The composition according to claim 1, wherein the total content of the component (A) and the component (B) in the composition is 0.05% by mass or more and 10% by mass or less.

6. The composition of claim 1 , further comprising (D) a nonionic polymer.

7. 7. The composition according to claim 6, wherein the component (D) is at least one member selected from the group consisting of polyalkylene glycols or derivatives thereof, and polymers containing structural units derived from vinylpyrrolidone.

8. The composition according to claim 1 , further comprising (E) a non-crosslinked anionic polymer having a molecular weight of 1,000 or more and 30,000 or less, the polymer containing a structural unit derived from (meth)acrylic acid.

9. The composition according to claim 1, wherein the component (A1) is at least one member selected from the group consisting of a methacryloylethyltrimethylammonium chloride polymer and an N,N-dimethylaminoethyl diethyl methacrylate sulfate / N,N-dimethylacrylamide / polyethylene glycol dimethacrylate copolymer, and the component (A2) is a cationic polymer having a cellulose skeleton.

10. A hair cosmetic composition comprising the composition according to any one of claims 1 to 9.

11. A method for producing the aqueous composition for treating fibers or keratinous materials according to any one of claims 1 to 9, comprising the steps of: a mixture containing the component (A) and the component (B) or a solution containing the component (A) and the component (B); and the component (C) or a solution containing the component (C).

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