Textile product treatment agent composition

Abstract

To provide a fiber product treatment agent composition which comprises: microcapsules with a shell containing silica as a constituent, which are silica capsules having a perfume compound in the core part; and a cationic surfactant which is a fiber product treatment agent composition which can suppress lowering of an adsorption ratio thereof to fiber products and can maintain a high adsorption ratio even after storing at a high temperature and / or for a long period of time.SOLUTION: Provided is a fiber product treatment agent composition which comprises the following (A) component, (B) component, and water, and has a pH at 30°C of 4.0 or less. (A) component: microcapsules comprising a shell containing silica and, inside the shell, a core containing a perfume compound. (B) component: a surfactant having cationicity at a pH of 4.0 or less.SELECTED DRAWING: None

Description

[Technical Field]

[0001] This invention relates to a textile product treatment agent composition. [Background technology]

[0002] Consumer interest in fragrances during washing, drying, and wearing clothes is increasing, and the market for liquid fabric softeners and fragrance enhancers that emphasize fragrance continues to grow. However, because textile treatment compositions used in general households are applied to textile products via water, the fragrance may not adhere sufficiently to the fibers, or it may evaporate from the fabric during drying or over time after drying, resulting in a weakened scent. To address these problems, for example, Patent Document 1 discloses a fabric softening composition containing a specific long-lasting fragrance composition that improves the lifespan of fragrances on fabrics.

[0003] Patent Document 2 discloses a sustained-release fragrance composition that can be used in clothing, for the purpose of prolonging the fragrance, by using a mixture of dibasic acid monoesters and / or dibasic acid diesters with ethylene glycol or propylene glycol. Patent Document 3 also discloses that a fragrance can be prolonged by using an aqueous liquid containing emulsion particles obtained by emulsifying and dispersing a mixture of oils and fats with a melting point of 30°C or higher at atmospheric pressure and a fragrance composition in water.

[0004] On the other hand, attempts have been made to microencapsulate fragrances in order to efficiently deliver them to clothing and improve their lingering scent during wear. Patent document 4 describes an encapsulated fragrance containing a fragrance composition with a flash point in the range of 50 to 130°C as the core material. Patent document 5 also describes that by using microcapsules containing fragrance in combination with a polymer containing a specific amine, it is possible to uniformly adhere fragrances at high concentrations to multiple different surfaces.

[0005] Furthermore, studies are being conducted on the synthesis of microcapsules using the sol-gel method. Patent Document 6 discloses a microcapsule having a core substance enclosed within a microcapsule shell, which is intended to substantially isolate the active ingredient of a sunscreen from biological tissue while still benefiting from the light-absorbing capacity of the sunscreen, wherein the core substance contains the active ingredient, the microcapsule shell is made of an inorganic polymer consisting of a polymerized precursor obtained by in-situ polymerization of the precursor, and the concentration of the core substance based on the total weight of the microcapsule is 95% by weight or more. Patent Document 7 discloses a therapeutic or cosmetic composition that allows for the stabilization and application of an active ingredient, comprising a plurality of microcapsules having a core-shell structure, wherein the microcapsules have a diameter of about 0.1 to 100 microns, each core contains an active ingredient, the core is encapsulated within a microcapsule shell, the shell is made of an inorganic polymer obtained by a sol-gel method, and the microcapsule shell protects the active ingredient before topical application and releases the active ingredient after topical application. Patent Document 8 discloses a method for producing microcapsule particles containing an active substance in the core, for example, to improve the release properties of fragrances for personal care products. This method involves mixing a sol-gel precursor with an active substance (particularly an essential oil) and cooling the mixture, then cooling an aqueous solution of the active substance, adding the mixture of the sol-gel precursor and essential oil to the aqueous solution, emulsifying it, then adding an antifoaming agent, and curing the mixture. Furthermore, Patent Document 9 describes that incorporating microcapsules containing fragrances produced by the core-shell method into detergents and fabric softeners improves the lingering fragrance of clothes after washing. [Prior art documents] [Patent Documents]

[0006] Patent Document 1 Japanese Patent Publication No. 11-504994 Patent Document 2: Japanese Unexamined Patent Publication No. 2003-313580 Patent Document 3: Japanese Unexamined Patent Publication No. 2012-72539 Patent Document 4: Japanese Unexamined Patent Publication No. 2006-249326 Patent Document 5: Japanese Unexamined Patent Publication No. 2018-172687 Patent Document 6 Special Publication No. 2007-500590 Patent Document 7 Special Publication No. 2003-534249 Patent Document 8: U.S. Patent Application Publication No. 2010 / 0143422 Patent Document 9 Special Publication No. 2011-517323 [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] In recent years, several technologies have been proposed to provide lasting fragrance to textile products, and one representative method involves microencapsulating fragrances and delivering them to clothing. However, the shells of microcapsules (hereinafter also referred to as "shells") are very thin. As a result, the core components dissolve into the shell, or leach out into the external environment through diffusion and penetration via the micropores present in the shell. Capsules obtained by the methods described in Patent Documents 6-9, perhaps due to insufficient shell density or strength, could not adequately retain organic compounds, such as fragrances, which are active ingredients, within the capsules even under high-temperature conditions or for extended periods when coexisting with surfactants. Therefore, when capsules are incorporated into textile product treatment agents containing surfactants, such as detergents and fabric softeners, the adsorption rate of the fragrance inside the capsules to textile products during washing decreases when the treatment agent is stored under high-temperature conditions or for extended periods.

[0008] The present invention provides a textile product treatment agent composition that contains silica capsules, which are microcapsules in which the shell contains silica as a constituent and in which a fragrance compound is present in the core, and a cationic surfactant, and that can suppress the decrease in the adsorption rate to textile products and maintain a high adsorption rate even after high temperature and / or long-term storage. [Means for solving the problem]

[0009] The inventors of the present invention have discovered that in a system in which silica capsules for efficiently delivering fragrance compounds to clothing coexist with a cationic surfactant, the fragrance compounds encapsulated in the core can be retained even after the textile product treatment composition is stored at high temperatures or for a long period of time by lowering the pH using any acid, and this has led to the present invention.

[0010] The present invention relates to a textile product treatment agent composition containing the following components (A) and (B), and water, and having a pH of 4.0 or less at 30°C. (A) Components: Microcapsules having a shell containing silica and a core containing a fragrance compound inside the shell. (B) Component: A surfactant having cationic properties at a pH of 4.0 or lower. [Effects of the Invention]

[0011] The present invention provides a textile product treatment agent composition, such as a liquid softener composition, and a method for producing the textile product treatment agent composition, which contains a silica capsule in which the shell is composed of silica and the core contains a fragrance compound, and a cationic surfactant, and which can suppress a decrease in the adsorption rate to textile products and maintain a high adsorption rate even after high temperature and / or long-term storage. [Modes for carrying out the invention]

[0012] <Textile product treatment agent composition> <(A) component> The textile product treatment composition of the present invention contains microcapsules as component (A), each having a shell containing silica as a constituent and a core containing a fragrance compound inside the shell. Silica is a substance whose structural unit is silicon dioxide. Hereinafter, microcapsules having a shell containing silica as a constituent, such as the microcapsule of component (A), will also be referred to as silica capsules. The fragrance compound can be incorporated into the silica capsule as a fragrance composition containing multiple fragrance compounds.

[0013] <shell> The shell of the silica capsule of the present invention contains silica as a constituent component. The shell of the silica capsule of the present invention is characterized in that part or substantially all of the structure constituting the shell is made of silica as a constituent component. The shell of the silica capsule of the present invention is preferably formed by a sol-gel reaction using an alkoxysilane as a precursor. In this invention, "sol-gel reaction" refers to a reaction in which an alkoxysilane undergoes hydrolysis and polycondensation to form silica, a component of the shell, through sol and gel states. Specifically, for example, a tetraalkoxysilane is hydrolyzed, and the silanol compound generates a siloxane oligomer through dehydration condensation and dealcoholization condensation reactions, and silica is formed by further dehydration condensation reactions.

[0014] Furthermore, the shell of the silica capsule of the present invention may contain inorganic polymers other than silica as constituent components, to the extent that they do not impair the effects of the present invention. In the present invention, an inorganic polymer refers to a polymer containing inorganic elements. Examples of such inorganic polymers include polymers consisting only of inorganic elements, and polymers whose main chain is composed only of inorganic elements and which have organic groups as side chains or substituents. The inorganic polymer is preferably a metal oxide containing a metal element or a metalloid element, and more preferably a polymer formed by a reaction similar to the silica sol-gel reaction described above, using a metal alkoxide [M(OR)x] as a precursor. Here, M is a metal or metalloid element, and R is a hydrocarbon group. Examples of metals or metalloid elements that make up metal alkoxides include titanium, zirconium, aluminum, and zinc.

[0015] The alkoxysilane is preferably a tetraalkoxysilane from the viewpoint of increasing the encapsulation rate of the fragrance compound and exhibiting good delivery performance. The tetraalkoxysilane is preferably one having an alkoxy group with 1 to 4 carbon atoms, from the viewpoint of promoting the sol-gel reaction, more preferably one or more selected from tetramethoxysilane, tetraethoxysilane, and tetraisopropoxysilane, even more preferably one or more selected from tetramethoxysilane and tetraethoxysilane, and even more preferably tetraethoxysilane.

[0016] (Manufacturing of silica capsules) The shell of the silica capsule of the present invention preferably contains silica formed by a two-step sol-gel reaction as a constituent component, from the viewpoint of increasing the encapsulation rate of the fragrance compound, improving long-term retention, and exhibiting good delivery performance of the fragrance compound. That is, the silica capsule of the present invention is preferably manufactured by a method comprising the following steps 1 and 2. Step 1: The emulsion obtained by emulsifying an aqueous phase component containing a cationic surfactant with an oil phase component containing a fragrance compound and a tetraalkoxysilane is subjected to a sol-gel reaction under acidic conditions to form a silica capsule (1) having a core and a first shell composed of silica, and an aqueous dispersion containing the silica capsule (1) is obtained. Step 2: A step in which a tetraalkoxysilane is added to an aqueous dispersion containing the silica capsule (1) obtained in Step 1 to carry out a sol-gel reaction and form a silica capsule having a second shell that encloses the first shell.

[0017] [Process 1] Step 1 is a step in which an emulsion obtained by emulsifying an aqueous phase component containing a cationic surfactant with an oil phase component containing a fragrance compound and a tetraalkoxysilane is subjected to a sol-gel reaction under acidic conditions to form a silica capsule (1) having a core and a first shell composed of silica, and an aqueous dispersion containing the silica capsule (1) is obtained.

[0018] Examples of cationic surfactants in step 1 include alkylamine salts and alkyl quaternary ammonium salts. The alkylamine salt is preferably a secondary amine or a tertiary amine, more preferably a tertiary amine. The number of carbon atoms in the alkyl group of the alkylamine salt and alkyl quaternary ammonium salt can be divided into long-chain alkyl groups, short-chain alkyl groups, and benzyl groups. The long-chain alkyl group preferably has 10 or more carbon atoms, more preferably 12 or more, even more preferably 14 or more, and preferably 22 or less, more preferably 20 or less, and even more preferably 18 or less. The short-chain alkyl group has 1 to 4 carbon atoms, preferably 1 or 2, and more preferably a methyl group. Examples of alkylamine salts include alkylamine salts in which the alkyl group is within the aforementioned range of carbon atoms, such as long-chain monoalkylmonomethyl secondary amine salts and long-chain monoalkyldimethyl tertiary amine salts. Examples of quaternary ammonium salts include long-chain alkyl-short-chain trialkyl quaternary ammonium salts, long-chain dialkyl-short-chain alkyl quaternary ammonium salts, and long-chain alkylbenzyl-short-chain dialkyl quaternary ammonium salts, where the alkyl group is within the aforementioned range of carbon atoms.

[0019] Examples of alkylamine salts include alkylamine acetates such as lauryldimethylamine acetate and stearyldimethylamine acetate. Examples of alkyltrimethylammonium salts include alkyltrimethylammonium chlorides such as lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, and stearyltrimethylammonium chloride; and alkyltrimethylammonium bromides such as lauryltrimethylammonium bromide, cetyltrimethylammonium bromide, and stearyltrimethylammonium bromide. Examples of dialkyldimethylammonium salts include dialkyldimethylammonium chlorides such as distearyldimethylammonium chloride, and dialkyldimethylammonium bromides such as distearyldimethylammonium bromide. Examples of alkylbenzyldimethylammonium salts include alkylbenzyldimethylammonium chloride and alkylbenzyldimethylammonium bromide. The cationic surfactant is preferably a quaternary ammonium salt, more preferably an alkyltrimethylammonium salt having an alkyl group with 10 to 22 carbon atoms, even more preferably an alkyltrimethylammonium chloride having an alkyl group with 10 to 22 carbon atoms, even more preferably one or more selected from lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, and cetyltrimethylammonium chloride, and even more preferably cetyltrimethylammonium chloride.

[0020] In step 1, other emulsifiers may be included in addition to the cationic surfactant, to the extent that they do not impede the effects of the present invention. Examples of other emulsifiers include polymer dispersants, nonionic surfactants, anionic surfactants, and amphoteric surfactants.

[0021] In step 1, the content of cationic surfactant in the aqueous phase component is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.4% by mass or more, from the viewpoint of the dispersion stability of the emulsion droplets, and from the viewpoint of suppressing the formation of emulsifier micelles by excess emulsifier that does not contribute to the dispersion stability of the emulsion and improving encapsulation efficiency, it is preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 2% by mass or less.

[0022] From the viewpoint of manufacturing efficiency, the amount of oil phase components relative to the total amount of emulsified liquid obtained in step 1 is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 15% or more. From the viewpoint of obtaining a stable emulsified liquid, it is preferably 50% by mass or less, more preferably 45% by mass or less, and even more preferably 40% by mass or less.

[0023] The amount of tetraalkoxysilane added in step 1 is preferably 10% by mass or more, more preferably 12% by mass or more, and even more preferably 14% by mass or more, relative to the total amount of the fragrance compound in step 1, from the viewpoint of promoting the sol-gel reaction and forming a sufficiently dense shell, and preferably 60% by mass or less, more preferably 50% by mass or less, even more preferably 40% by mass or less, and even more preferably 35% by mass or less, from the viewpoint of suppressing the retention of excess tetraalkoxysilane in the fragrance compound.

[0024] Step 1 preferably includes the following steps 1-1 to 1-4. Step 1-1: Step to prepare an aqueous phase component containing a cationic surfactant. Step 1-2: A step in which the fragrance compound and tetraalkoxysilane are mixed to prepare the oil phase component. Step 1-3: A step to mix and emulsify the aqueous phase component obtained in Step 1-1 and the oil phase component obtained in Step 1-2 to obtain an emulsion. Steps 1-4: The emulsion obtained in Steps 1-3 is subjected to a first-stage sol-gel reaction to form a silica capsule having a core and a first shell composed of silica.

[0025] The stirring means used to prepare the emulsified liquid is not particularly limited, but homogenizers with strong shear force, high-pressure dispersers, ultrasonic dispersers, etc. can be used. In addition, homomixers, "Disper" (product name, manufactured by Primix Co., Ltd.), "Creamix" (product name, manufactured by M-Technique Co., Ltd.), "Cavitron" (product name, manufactured by Taiheiyo Kiko Co., Ltd.), etc. can also be used.

[0026] Median diameter D of the emulsion droplet in the emulsion solution of step 1 50From the viewpoint of reducing the specific surface area relative to the environment outside the silica capsule and improving long-term retention, it is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more. From the viewpoint of the physical strength of the silica capsule, it is preferably 50 μm or less, more preferably 30 μm or less, even more preferably 10 μm or less, even more preferably 5 μm or less, and even more preferably 3 μm or less. Median diameter D of emulsion droplet 50 This can be measured by the method described in the examples.

[0027] The initial pH of the sol-gel reaction in step 1 is preferably 3.0 or higher, more preferably 3.3 or higher, and even more preferably 3.5 or higher, from the viewpoint of maintaining a balance between the hydrolysis and condensation reactions of the tetraalkoxysilane, and from the viewpoint of suppressing the formation of a highly hydrophilic sol and promoting the progress of encapsulation. Furthermore, from the viewpoint of suppressing the simultaneous occurrence of silica shell formation and emulsion droplet aggregation and obtaining silica capsules with a dense shell, the initial pH is preferably 4.5 or lower, more preferably 4.3 or lower, and even more preferably 4.1 or lower.

[0028] Depending on the acidity or alkalinity of the oil phase components containing the fragrance compounds, any acidic or alkaline pH adjusting agent may be used to adjust to the desired initial pH. The pH of the emulsified solution may fall below the desired value. In such cases, it is preferable to adjust the pH using an alkaline pH adjusting agent, as described later. In other words, steps 1-4 may preferably be the following steps 1-4'. Step 1-4': The pH of the emulsion obtained in Step 1-3 is adjusted using a pH adjusting agent, and the first sol-gel reaction is carried out to form a silica capsule (1) having a core and a first shell, and an aqueous dispersion containing the silica capsule (1) is obtained.

[0029] Examples of acidic pH adjusters include solutions obtained by adding inorganic acids such as hydrochloric acid, nitric acid, and sulfuric acid, organic acids such as acetic acid and citric acid, and cation exchange resins to water or ethanol, with hydrochloric acid, sulfuric acid, nitric acid, and citric acid being preferred. Examples of alkaline pH adjusters include sodium hydroxide, sodium bicarbonate, potassium hydroxide, ammonium hydroxide, diethanolamine, triethanolamine, and trishydroxymethylaminomethane, with sodium hydroxide and ammonium hydroxide being preferred.

[0030] The reaction temperature for the sol-gel reaction in step 1 can be any value as long as it is above the melting point and below the boiling point of the water contained in the aqueous phase. However, from the viewpoint of controlling the balance between the hydrolysis reaction and the condensation reaction in the sol-gel reaction and forming a dense shell, it is preferable to keep the temperature within a certain range. This range is preferably 5°C or higher, more preferably 10°C or higher, even more preferably 15°C or higher, and preferably 60°C or lower, more preferably 50°C or lower, and even more preferably 40°C or lower.

[0031] [Process 2] Step 2 is a step in which a tetraalkoxysilane is added to an aqueous dispersion containing the silica capsule (1) obtained in Step 1 to carry out a sol-gel reaction and form a silica capsule having a second shell that encloses the first shell.

[0032] The amount of tetraalkoxysilane added in step 2 is preferably 7% by mass or more, more preferably 10% by mass or more, and even more preferably 15% by mass or more, relative to the fragrance compound in step 1, from the viewpoint of forming a second shell that encloses the first shell, and preferably 200% by mass or less, more preferably 170% by mass or less, and even more preferably 150% by mass or less, from the viewpoint of suppressing the formation of silica sol dispersed in the aqueous phase and improving the dispersion stability of the silica capsule.

[0033] In step 2, the tetraalkoxysilane to be added to the aqueous dispersion containing the silica capsule (1) obtained in step 1 may be added all at once, added intermittently in divided portions, or added continuously. However, from the viewpoint of forming a highly dense second shell, it is preferable to add it continuously by drop. When tetraalkoxysilane is added dropwise continuously, the dropwise addition time can be set appropriately according to the scale of production, but from the viewpoint of suppressing the separation of the added tetraalkoxysilane and the aqueous dispersion, it is preferably 5 minutes or more, more preferably 10 minutes or more, even more preferably 30 minutes or more, and preferably 1200 minutes or less, more preferably 1000 minutes or less, and even more preferably 500 minutes or less.

[0034] In the present invention, the total amount of tetraalkoxysilane added, that is, the total amount of tetraalkoxysilane used in steps 1 and 2, is preferably 30% by mass or more, more preferably 35% by mass or more, even more preferably 40% by mass or more, and preferably 250% by mass or less, more preferably 200% by mass or less, and even more preferably 150% by mass or less, relative to the fragrance compound in step 1. By keeping the total amount of tetraalkoxysilane added within the above range, the encapsulated fragrance compound can be retained for a long period of time.

[0035] In the present invention, the total amount of the fragrance compound and tetraalkoxysilane in step 1 relative to the total amount of the aqueous dispersion before the addition of tetraalkoxysilane in step 2 is preferably 20% by mass or less, more preferably 18% by mass or less, even more preferably 15% by mass or less, and even more preferably 10% by mass or less, from the viewpoint of improving the long-term retention of the fragrance compound, and from the viewpoint of production efficiency, it is preferably 2% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more. The adjustment of the total amount of the fragrance compound and tetraalkoxysilane in Step 1 relative to the total amount of the aqueous dispersion before the addition of tetraalkoxysilane in Step 2 may be performed by carrying out Step 1 so that the amounts of the fragrance compound and tetraalkoxysilane in Step 1 and the total amount of the aqueous dispersion obtained in Step 1 are within the above range, or by further adding water to the aqueous dispersion obtained in Step 1 to dilute it.

[0036] From the viewpoint of production efficiency, in step 2, the aqueous dispersion obtained in step 1 may be diluted with water before adding the tetraalkoxysilane. The total amount of the fragrance compound and tetraalkoxysilane from step 1 relative to the total amount of the aqueous dispersion obtained in step 1 before dilution is preferably 3% by mass or more, more preferably 5% by mass or more, even more preferably 10% by mass or more, and even more preferably 15% by mass or more, and preferably 50% by mass or less, more preferably 40% by mass or less, and even more preferably 30% by mass or less. The dilution ratio is preferably 2 times or more, more preferably 2.5 times or more, and preferably 20 times or less, more preferably 10 times or less, and more preferably 7 times or less.

[0037] The reaction temperature for the sol-gel reaction in step 2 can be arbitrarily selected as long as it is above the melting point and below the boiling point of the water contained as the dispersion medium. However, from the viewpoint of controlling the balance between the hydrolysis reaction and the condensation reaction in the sol-gel reaction and forming a dense shell, it is preferably 5°C or higher, more preferably 10°C or higher, even more preferably 15°C or higher, and preferably 60°C or lower, more preferably 50°C or lower, and even more preferably 40°C. The sol-gel reaction in step 1 and the sol-gel reaction in step 2 may be carried out at different reaction temperatures.

[0038] In step 2 of the present invention, an organic polymer may be further added to the aqueous dispersion obtained in step 1. Here, the organic polymer refers to a compound with a weight-average molecular weight of 5,000 or more. The organic polymer is preferably one or more selected from cationic polymers and nonionic polymers. The nonionic polymer refers to a water-soluble polymer that does not have an electric charge in water. By using a nonionic polymer, it is possible to impart functions to the silica capsule according to its intended use. When a cationic polymer or a nonionic polymer is used as the organic polymer, for example, when the silica capsules according to the present invention are used in a fiber treatment composition such as a softener composition, an improvement in the adsorption of the silica capsules to fibers can be expected. In this specification, "water-soluble polymer" means a polymer that, when dried at 105°C for 2 hours to reach a constant weight, is dissolved in 100g of water at 25°C, and the amount dissolved is 1 mg or more.

[0039] Examples of nonionic polymers include polymers having structural units derived from nonionic monomers, water-soluble polysaccharides (cellulose-based, gum-based, starch-based, etc.), and their derivatives. Examples of nonionic monomers include (meth)acrylates having hydrocarbon groups derived from aliphatic alcohols with 1 to 22 carbon atoms; styrene monomers such as styrene; aromatic group-containing (meth)acrylates such as benzyl (meth)acrylate; vinyl acetate; vinylpyrrolidone; vinyl alcohol; polyalkylene glycol (meth)acrylates such as polyethylene glycol mono(meth)acrylate; alkoxy polyalkylene glycol mono(meth)acrylates such as methoxy polyethylene glycol mono(meth)acrylate and octoxy polyethylene glycol mono(meth)acrylate; and (meth)acrylamide. Note that (meth)acrylate means acrylate or methacrylate. Similarly, (meth)acrylic means acrylic or methacrylic. The nonionic polymer is preferably one or more selected from polyvinylpyrrolidone, copolymers of vinylpyrrolidone and other nonionic monomers such as vinylpyrrolidone / vinyl acetate copolymer, and cellulosic polymers such as hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, and hydroxyethylmethylcellulose, and more preferably one or more selected from polyvinylpyrrolidone and hydroxypropylcellulose.

[0040] Cationic polymers include polymers containing quaternary ammonium bases, polymers having nitrogen-based cationic groups, and polymers that may become cationic through pH adjustment. By using cationic polymers, the tendency of silica capsules (1) obtained in step 1 to aggregate in the aqueous dispersion can be mitigated, and the generation of coarse particles and the like can be suppressed in the subsequent step 2. Examples of cationic polymers include polydiallyldimethylammonium salts and copolymers thereof, such as poly(diallyldimethylammonium chloride), poly(co-diallyldimethylammonium acrylate), poly(acrylamide-co-diallyldimethylammonium chloride), and poly(acrylamide-co-acrylate-co-diallyldimethylammonium chloride), as well as poly(2-(methacryloyloxy)ethyltrimethylammonium chloride), polyethyleneimine, polyallylamine, cationized cellulose, cationized guar gum, cationized tara gum, cationized fenugreek gum, and cationized locust bing gum. Among these, polydiallyldimethylammonium salts and copolymers thereof are preferred, with one or more selected from poly(diallyldimethylammonium chloride), poly(co-diallyldimethylammonium acrylate), and poly(acrylamide-co-acrylate-co-diallyldimethylammonium chloride) being more preferred, and poly(diallyldimethylammonium chloride) being even more preferred.

[0041] The cationic group equivalent of the cationic polymer is preferably 1 meq / g or more, more preferably 3 meq / g or more, even more preferably 4.5 meq / g or more, and preferably 10 meq / g or less, even more preferably 8 meq / g or less, from the viewpoint of dispersibility of the silica capsule (1), suppression of the generation of coarse particles, and improvement of long-term retention. The cationic polymer may contain anionic groups, in which case the anionic group equivalent contained in the cationic polymer is preferably 3.5 meq / g or less, more preferably 2 meq / g or less, even more preferably 1 meq / g or less. In this invention, the cationic group equivalent of the cationic polymer is calculated based on the monomer composition.

[0042] The amount of organic polymer added is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 2% by mass or less, relative to the aqueous dispersion obtained in step 1.

[0043] Furthermore, anionic polymers can also be used as the organic polymer. Examples of anionic polymers include polymers containing monomer units having carboxyl groups, polymers containing monomer units having sulfonic acid groups, and polymers that become anionic when the pH is adjusted. Examples of anionic polymers include poly(meth)(acrylic acid), poly(maleic acid), poly((meth)acrylic acid-co-maleic acid), poly((meth)acrylic acid-co-maleic anhydride), poly((meth)acrylic acid-co-isobutylene), poly((meth)acrylic acid-co-styrene), poly(isobutylene-co-maleic acid), poly(styrene-co-maleic acid), and carboxymethylcellulose. Note that (meth)acrylic acid means acrylic acid or methacrylic acid.

[0044] The silica capsules obtained in step 2 are obtained in the form of a slurry dispersed in water. Depending on the application, this can be used as is, but in some cases, the water content may be further reduced to concentrate it into a water slurry composition, or the silica capsules may be separated before use. Methods for concentration and separation include filtration and centrifugation.

[0045] In the method for producing the textile product treatment agent composition of the present invention, it is preferable that the silica capsules be used in the manufacturing process as an aqueous slurry composition in which the silica capsules are dispersed in water. Furthermore, the pH of the aqueous slurry composition containing the silica capsules at 30°C is preferably 5.0 or less, more preferably 2.0 to 4.5, even more preferably 2.5 to 4.0 under acidic conditions, or preferably 7.5 to 11.5, more preferably 8.0 to 11.0, even more preferably 8.5 to 10.5 under alkaline conditions. Since the silica capsules will aggregate if the pH falls outside this range, it is preferable that the pH of the aqueous slurry composition be acidic below a specific pH or alkaline within a specific pH range. When measuring the water content of the aqueous slurry composition, it may be measured by separating it using a centrifuge or a filter and measuring the capsule concentration in each layer. Although this is not an exact amount of water, it is preferable that the aqueous solution, preferably the supernatant liquid, when 50 ml is centrifuged in a centrifuge at 5000 rpm for 15 minutes, has a concentration of preferably 40% by mass or more, more preferably 50% by mass or more, and preferably 90% by mass or less, and even more preferably 85% by mass or less, of the aqueous slurry composition.

[0046] <core> The core of the silica capsule according to the present invention contains a fragrance compound. In the present invention, from the viewpoint of silica capsule formation, it is preferable that the proportion of fragrance compounds having a logP of 2.0 or more and a vapor pressure of 0.01 or more and 8.00 or less at 25°C is 25% by mass or more of the total amount of fragrance compounds.

[0047] In this invention, the logP value is a coefficient that indicates the affinity of an organic compound for water and 1-octanol. The 1-octanol / water partition coefficient P is the ratio of the equilibrium concentrations of the compound in each solvent when a trace amount of the compound dissolves as a solute in a solvent consisting of two liquid phases, 1-octanol and water, and reaches partition equilibrium. It is generally expressed in the form of its logarithm logP with respect to base 10. Today, the value of "calculated logP (sometimes called ClogP)", which is calculated by a calculation program that uses the fragment value of the atomic group determined by the number of atoms constituting the compound molecule and the type of chemical bond, is widely used, and in this invention as well, the value of ClogP is used when selecting compounds.

[0048] In this invention, the ClogP value is calculated using the EPI Suite (registered trademark; The EstimationsProgramsInterface for Windows version 4.11), software jointly developed by the U.S. Environmental Protection Agency and Syracuse.

[0049] In this invention, the vapor pressure at 25°C is determined by measurement or estimation from the boiling point, and is estimated from the melting point if the chemical substance is solid at room temperature. Vapor pressure can be estimated by several known methods (Antoine method, Modified Grain method, Mackay method, etc.), but in this invention, the value is calculated using MPBPWIN, which is incorporated into the EPI suite available from the U.S. Environmental Protection Agency (EPA). If the average value of the value calculated by the Antoine method and the value calculated by the Grain method is displayed as a "Selected VP" in the calculation results, that average value is used. If there is no display of a "Selected VP," the value calculated by the Modified Grain method is used.

[0050] Examples of fragrance compounds having a logP of 2.0 to 5.0 and a vapor pressure of 0.01 to 8.00 at 25°C include γ-undecalactone, 2-cyclohexylidene-2-phenylacetonitrile, damascenone, δ-damascone, α-methyl-β-(pt-butylphenyl)-propionaldehyde, β-ionone, myrrhaldehyde, and ethyl tricyclo[5.2.1.[0-2,6] Decane-2-carboxylate (frutete), citronellol, geraniol, α-ionone, patchouli alcohol, 6,7-dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone, methyldihydrojasmonate, hexyl cinnamaldehyde, amyl cinnamaldehyde, allylcyclohexyl propionate, dimethylbenzylcarbin butyrate, tricyclodecenyl propionate, amyl salicylate, γ-methylionone, α-damascone β-Damascone, Neroline Yalayala, 2,4,6-Trimethyl-4-phenyl-1,3-dioxane, Phenylhexanol, 2-Methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol, Dodecahydro-3a,6,6,9a-Tetramethylnaphtho[2,1-b]furan, γ-Nonalactone, Methyl β-Naphthylketone, Eugenol, Lilla, Dimethylbenzylcarbinyl acetate, Iso-Damascone, 2-Cyclohexylidene-2-Fe Nylacetonitrile, γ-decalactone, α-methyl-3,4-methylenedioxyhydrocinnamicaldehyde, 7-methyl-3,5-dihydro-2H-benzodioxepinone, tricyclodecinyl acetate (tricyclodecenyl acetate), tricyclodecinyl propionate, 2-pentyloxyglycolate allyl, 1-(2-tert-butylcyclohexyloxy)-2-butanol, citronellyloxyacetaldehyde, indole, 4-methyl-3-decen-5-ol, Lamentan-8-thiol-3-one, 3-(para-tert-butylphenyl)-propanal, ethyl cinnamate, 5-methyl-3-heptanone oxime, methyl anthranilate, terpineol, β-caryophyllene, citronellyl acetate, geranyl acetate, neryl acetate, pt-butylcyclohexyl acetate, tetrahydrogeraniol, 2-isobutyl-4-hydroxy-4-methyltetrahydropyranol (florosa), α-dynascone, cisjasmon, bicyclo[3.2.1) Octane-8-one-1,5-dimethyloxime, 2,4-dimethyl-4,4α,5,9β-tetrahydroindeno[1,2-d]-m-dioxin, 3-(para-ethylphenyl)-2,2-dimethylpropanal, ethyl-2-tert-butylcyclohexyl carbonate, hexyl benzoate, 4-acetoxy-3-amyltetrahydropyran, dodecylaldehyde, dihydro-β-ionone, methylcyclooctyl carbonate, methylphenyl Examples include ethyl glycidate, isoeugenol, methylisoeugenol, diphenyl oxide, 2,2,5-trimethyl-5-pentylcyclopentanone, thymol, neroline bromeliad, 5,6-dimethyl-8-isopropenyl, bicyclo"4,4,0"-1-decen-3-one, 3-(4-isopropylphenyl)-propanal, 4-isopropylcyclohexanemethanol, methyl methyl anthranilate, and dodecanenitrile 3-dodecenal.

[0051] Furthermore, as the fragrance compound for component (A), a fragrance compound with a logP value lower than 2.0 can also be used. Examples of fragrance compounds with a logP value lower than 2.0 include coumarin (1.5), phenylethyl alcohol (1.6), cis-3-hexenol (1.6), raspberry ketone (1.5), heliotropin (1.8), and benzyl alcohol (1.1). The numbers in parentheses are the logP values.

[0052] Furthermore, as the fragrance compound for component (A), a fragrance compound with a logP value higher than 5.0 can also be used. Examples of fragrance compounds with a logP value higher than 5.0 include 2-[2-(4-methyl-3-cyclohexen-1-yl)propyl]cyclopentanone (5.1), 7-acetyl-1,2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethylnaphthalene (5.2), acetylcedrene (5.2), nerolidol (5.7), and caryophyllene (6.3). The numbers in parentheses are the logP values.

[0053] Furthermore, as the fragrance compound for component (A), a fragrance compound with a vapor pressure lower than 0.01 Pa can also be used. Examples of fragrance compounds with a vapor pressure lower than 0.01 Pa include 1,4-dioxacycloheptadecane-5,17-dione (0.0000585) and ethylene blushylate (0.0000585). The numbers in parentheses represent the vapor pressure.

[0054] Furthermore, as the fragrance compound for component (A), a fragrance compound with a vapor pressure higher than 8.00 Pa can also be used. Examples of fragrance compounds with a vapor pressure higher than 8.00 Pa include ethyl 2-methylbutyrate (1070), ethyl-2-methylpentanoate (384), limonene (193), allyl 2-pentyloxyglycolate (19.7), 2,4-dimethyl-3-cyclohexenylcarboxaldehyde (46.9), linalool (11.1), linalyl acetate (17.5), tetrahydrolinalool (9.51), 1,8-cineole (208), isobornyl acetate (14.3), ocimene (358), cis-3-hexenol (125), tripral (46.9), and styraryl acetate (14.9). The numbers in parentheses represent the vapor pressure.

[0055] Furthermore, the microcapsules of component (A) may contain one or more diluents, solvents, and solidifying agents in addition to the fragrance compound. Examples of diluents or solvents include ethylene glycol, propylene glycol, dipropylene glycol, and glycerin, as well as fatty acid alcohols, lower alcohol esters of fatty acids, and glycerin esters of fatty acids.

[0056] [Silica Capsules] The silica capsule of the present invention is preferably a silica capsule having a core containing the fragrance compound, a first shell enclosing the core, and a second shell enclosing the first shell. The first shell of the silica capsule of the present invention encloses the core, contains silica as a constituent component, and preferably has an average thickness of 5 nm to 20 nm, and the second shell encloses the first shell, contains silica as a constituent component, and preferably has an average thickness of 10 nm to 100 nm. The average thickness of the first and second shells of a silica capsule can be measured by transmission electron microscopy (TEM). Specifically, the thickness of the first and second shells is measured on a photograph under transmission electron microscopy. This operation is performed by changing the field of view five times. From the obtained data, the distribution of the average thickness of the first and second shells is determined. The recommended magnification for the transmission electron microscope is between 10,000x and 100,000x, but this is adjusted appropriately depending on the size of the silica capsule. Here, a transmission electron microscope (TEM) such as the "JEM-2100" (manufactured by JEOL Ltd.) can be used.

[0057] Median diameter D of silica capsule according to the present invention 50 From the viewpoint of improving long-term retention and the dispersion stability of the silica capsule, the particle size is preferably 0.1 μm or more, more preferably 0.5 μm or more, and even more preferably 1 μm or more. Furthermore, from the viewpoint of improving the physical strength of the silica capsule and improving long-term retention, the particle size is preferably 100 μm or less, more preferably 50 μm or less, even more preferably 30 μm or less, and even more preferably 10 μm or less. Silica capsule median diameter D 50 This can be measured by the method described in the examples. Furthermore, the silica capsules of component (A) may be partially aggregated to the extent that it does not impair the fragrance.

[0058] The textile product treatment agent composition of the present invention contains component (A) as a fragrance compound contained in component (A) in an amount preferably of 0.05% by mass or more, more preferably of 0.07% by mass or more, even more preferably of 0.1% by mass or more, and preferably of 3.0% by mass or less, more preferably of 1.5% by mass or less, and even more preferably of 1.0% by mass or less.

[0059] <(B) component> Component (B) of the present invention is a surfactant having cationicity at pH 4.0 or lower, that is, a so-called cationic surfactant. However, among cationic surfactants, there are compounds that do not exhibit cationicity depending on the pH. Therefore, in the present invention, a surfactant that exhibits cationicity at pH 4.0 or lower, which is the pH of the composition of the present invention, is contained. By containing a surfactant that exhibits cationicity, the dispersion stability of component (A) in the composition is improved. As component (B), at least one compound selected from tertiary amines represented by the following general formula (B1), acid salts thereof, and quaternized products of the amines is preferable.

[0060]

Chemical formula

[0061] [In the formula, R b1 group is a hydrocarbon group having 12 or more and 28 or less carbon atoms, which may be segmented by one or more selected from an ester group, an amide group, and an ether group, and R b2 group and R b3 group are each independently a group selected from an R b1 group, an alkyl group having 1 or more and 3 or less carbon atoms, a hydroxyalkyl group having 1 or more and 3 or less carbon atoms, and a hydroxyalkyl ether alkylene group having 4 or more and 6 or less carbon atoms. ]

[0062] In the general formula (B1), the R b1 group is preferably a hydrocarbon group having 12 or more, preferably 14 or more, and 28 or less, preferably 26 or less carbon atoms, which is segmented by one or more selected from an ester group, an amide group, and an ether group. In this case, the hydrocarbon group may be either saturated or unsaturated. That is, preferable R b1 groups include the groups shown in the following (i) to (iii). (i) A saturated hydrocarbon group having 12 or more, preferably 14 or more, and 28 or less, preferably 26 or less carbon atoms, which is segmented by one or more selected from an ester group, an amide group, and an ether group (ii) an unsaturated hydrocarbon group having 12 or more carbon atoms, preferably 14 or more, and 28 or fewer carbon atoms, and having one or more double bonds, preferably 26 or fewer carbon atoms, which is divided by one or more groups selected from ester groups, amide groups, and ether groups. (iii) A mixture of the above groups (i) and (ii).

[0063] Also, preferred R b2 Base and R b3 The groups can be independently selected from alkyl groups having 1 to 3 carbon atoms, hydroxyalkyl groups having 1 to 3 carbon atoms, and hydroxyalkyl ether alkylene groups having 4 to 6 carbon atoms.

[0064] Component (B) can be obtained, for example, by esterification, amidation, or transesterification of a fatty acid or lower alkyl fatty acid ester having a total of 12 to 28 carbon atoms with an amine such as an alkanolamine having an alkanol group having 2 or 3 carbon atoms, or an aminoalkylamine having an alkylamine group having 2 or 3 carbon atoms, or by reacting the alkanolamine with an alkylene oxide having 2 or 3 carbon atoms before carrying out the reaction.

[0065] The aforementioned fatty acids or lower alkyl esters of fatty acids are preferably fatty acids having a total of 12 to 28 carbon atoms or their lower alkyl esters (alkyl groups having 1 to 3 carbon atoms), and one or a mixture of two or more types can be used. The fatty acids or lower alkyl fatty acid esters may, as needed, be fatty acids known from the Oil Chemistry Handbook (4th edition, The Japan Oil Chemists' Society, Maruzen Co., Ltd., November 20, 2001), etc. They may be single fatty acids or fatty acid mixtures containing fatty acids of different chain lengths or unsaturated fatty acids derived from natural oils and fats such as coconut oil, palm oil, and beef tallow. Mixtures of different fatty acids, such as fatty acids derived from natural oils and fats, can be obtained by hydrogenation of unsaturated bonds, isomerization of unsaturated bonds, distillation, adjustment of alkyl chain length by bottom cut or top cut, or mixing of multiple fatty acids.

[0066] The aforementioned aminoalkylamine is preferably an amine having at least two amino groups selected from primary, secondary, and tertiary amino groups within its molecule. The aforementioned alkanolamine is preferably an amine that requires a hydroxyl group within its molecule and has primary to tertiary amino groups. More specific examples include, but are not limited to, dialkylmonoalkanolamines (preferably dimethylmonoethanolamine or dimethylmonopropanolamine), monoalkyldialkanolamines (preferably methyldiethanolamine or methyldipropanolamine), or trialkanolamines (preferably triethanolamine or trippropanolamine), or di(aminoalkyl)alkylamines (e.g., N-methyl-N,N-di(3-aminopropyl)amine), dialkylaminoalkylamines (e.g., N,N-dimethyl-N-(3-aminopropyl)amine), and alkylaminopropylmonoalkylalkanolamines (preferably N-methyl-N-(2-hydroxyethyl)-N-(3-aminopropyl)amine). More preferably are N-methyldiethanolamine, triethanolamine, N-methyl-N-(2-hydroxyethyl)-N-(3-aminopropyl)amine, N,N-dimethyl-N-(3-aminopropyl)amine, and N,N-dimethyl-N-(2-hydroxyethyl)amine.

[0067] Examples of salts of tertiary amines represented by general formula (B1) include salts neutralized with inorganic and organic acids. Preferred inorganic acids are hydrochloric acid, sulfuric acid, and phosphoric acid, while preferred organic acids are monovalent or polyvalent carboxylic acids having 1 to 10 carbon atoms, monovalent or polyvalent sulfonic acids having 1 to 20 carbon atoms, alkyl sulfate esters having 6 to 36 carbon atoms, or polyoxyalkylene alkyl (alkyl group having 6 to 36 carbon atoms) sulfate esters. More preferably are methyl sulfate, ethyl sulfate, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, citric acid, benzoic acid, salicylic acid, alkyl sulfate esters having 12 to 36 carbon atoms, or polyoxyalkylene alkyl (alkyl group having 12 to 36 carbon atoms) sulfate esters.

[0068] Quaternary compounds of tertiary amines represented by general formula (B1) include compounds obtained by quaternizing a tertiary amine represented by general formula (B1) with an alkylating agent such as an alkyl halide, dialkyl sulfate, or alkylene oxide. Methyl chloride is preferred as the alkyl halide, dimethyl sulfate and diethyl sulfate are preferred as the dialkyl sulfate, and ethylene oxide is preferred as the alkylene oxide. Furthermore, the quaternization reaction using an alkylating agent can be carried out in the presence of a solvent (e.g., ethanol), but it can also be carried out in a solvent-free environment from the viewpoint of maintaining the odor and storage stability of the synthesized product and / or suppressing the generation of impurities.

[0069] Component (B) may be a component comprising one or more selected from components (b1) and (b2) below. These are preferred when the textile product treatment agent composition of the present invention is a liquid softener composition. (b1) Components: A tertiary amine compound represented by the following general formula (B2), and its salt. (b2) Components: A quaternary amine compound represented by the following general formula (B2). [R b11 -C(=O)-O-(C p H 2p O) r -C q H 2q ]m N(R b12 ) 3-m (B2) [In the formula, R b11 This is a hydrocarbon group having 11 to 23 carbon atoms. R b12 This includes hydrocarbon groups with 1 to 3 carbon atoms and HO-(C p H 2p O) r -C q H 2q It is a base that is selected from other bases, m is a number between 1 and 3 (inclusive), p and q are independently numbers of 2 or 3, and r is a number of 0 or 1. R within the same molecule b11 , R b12 If there are multiple instances of p, q, and r, they may be the same or different. Also, R b11 -C(=O)-O-(C p H 2p O) r -C q H 2q The total number of carbon atoms is between 14 and 28.

[0070] R in general formula (B2) b11 The carbon atoms have 11 to 23 carbon atoms, and from the viewpoint of making textile products more flexible, acyclic hydrocarbon groups with 13 to 21 carbon atoms are preferred. R b11 Specific examples include linear or branched alkyl groups having 13 to 21 carbon atoms, and linear or branched alkenyl groups having 13 to 21 carbon atoms, and groups selected from linear alkyl groups having 13 to 21 carbon atoms and linear alkenyl groups having 13 to 21 carbon atoms. R b11 Specific examples include linear or branched alkyl groups having 13 to 21 carbon atoms, and linear or branched alkenyl groups having 13 to 21 carbon atoms. b11 Preferably, the group is selected from linear alkyl groups having 13 to 21 carbon atoms and linear alkenyl groups having 13 to 21 carbon atoms.

[0071] (b1) Component is R in the general formula (B2) aboveb11 It is preferable that the mixture is composed of compounds with different substituents, b11 However, it is more preferable that the compound be a mixture of an alkyl group and an alkenyl group. The ratio of alkyl group compounds to alkenyl group compounds can be determined by the composition of the starting fatty acid or fatty acid ester. The amount of alkyl group and alkenyl group can be adjusted by hydrogenation of the starting material containing the alkenyl group, or R b11 This can be achieved by hydrogenating a compound that has an alkenyl group.

[0072] The unsaturated group contained in the aforementioned alkenyl group exists in both cis and trans forms. The molar ratio of the cis isomer to the trans isomer [cis / trans isomer] is preferably 30 / 70 or more and 99 / 1 or less, and more preferably 50 / 50 or more and 97 / 3 or less from the viewpoint of the availability of alkenyl groups. In the present invention, the ratio of the cis isomer to the trans isomer can be calculated by the integral ratio of 1H-NMR.

[0073] In general formula (B2), p and q are each the number 2 or 3. From the viewpoint of retaining the absorbency of the treated fabric, p is preferably 2. From the viewpoint of ease of manufacture, q is preferably 2. In general formula (B2), r is a number of 0 or 1, and 0 is preferred, from the viewpoint of making the textile product more flexible. R b12 From the perspective of water absorption, HO-(C p H 2p O) r -C q H 2q A base group, and more preferably an HO-C2H4 group, is preferred. m is preferably between 1 and 2 from the viewpoint of water absorption.

[0074] Component (b1) is a tertiary amine compound represented by general formula (B2) and its salt, as described above. However, depending on the pH of the textile product treatment composition of the present invention, for example, a liquid softener composition, almost all of component (b1) may be present in the composition in the form of its salt. (b1) When the tertiary amine compound constituting the component exists as an acid salt, examples of acids include inorganic acids or organic acids. Examples of inorganic acids include hydrochloric acid and sulfuric acid. Examples of organic acids include alkyl sulfates having 1 to 3 carbon atoms, monovalent or polyvalent carboxylic acids having 1 to 10 carbon atoms, and monovalent or polyvalent sulfonic acids having 1 to 20 carbon atoms. Specific examples of organic acids include methyl sulfate, ethyl sulfate, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, citric acid, benzoic acid, and salicylic acid.

[0075] (b1) The method for producing the amine compound represented by general formula (B2), which is component (b1), is not particularly limited, but for example, it can be obtained by an esterification reaction between an alkanolamine compound represented by the following general formula (B2-1) and a fatty acid, or by a transesterification reaction between an alkanolamine compound represented by general formula (B2-1) and a fatty acid ester. As the aforementioned fatty acids, fatty acids derived from palm kernel oil, coconut oil, beef tallow, rapeseed oil, and sunflower oil can be used, and the fatty acid ratio may be adjusted, or fatty acids of different origins may be used in combination.

[0076] [HO-(C p H 2p O) r -C q H 2q ] n N(R b13 ) 3-n (B2-1) [wherein, R b13 is a group selected from hydrocarbon groups having 1 to 3 carbon atoms, where n is a number between 1 and 3, and p, q, and r have the same meaning as in the general formula (B2) above.

[0077] As an example of an esterification reaction, the method described on pages 8-9 of Japanese Patent Publication No. 2000-510171 can be applied. As an example of a transesterification reaction, the method described in paragraphs

[0013] to

[0016] of Japanese Patent Publication No. 7-138211 can be applied.

[0078] Component (b2) is a quaternary product of the tertiary amine compound represented by the general formula (B2), and can be obtained by a quaternization reaction using the tertiary amine compound represented by the general formula (B2) and an alkylating agent.

[0079] The textile product treatment agent composition of the present invention preferably contains component (B) in an amount of 1% by mass or more, more preferably 3% by mass or more, even more preferably 5% by mass or more, and preferably 20% by mass or less, more preferably 18% by mass or less, and even more preferably 15% by mass or less.

[0080] The textile product treatment agent composition of the present invention has a mass ratio of component (A) to component (B) [component (A) / component (B)] which is preferably 1 / 1000 or more, more preferably 1 / 500 or more, and preferably 1 / 1 or less, more preferably 1 / 2 or less.

[0081] <ph> The most important part of the present invention is the pH of the textile product treatment agent composition. The inventors have found that when silica capsules are dispersed in water at low concentrations, for example, when they are incorporated into a composition containing water as component (A) of the present invention, the fragrance inside the capsules is more likely to leak depending on the pH. Therefore, in order to suppress the leakage of fragrance compounds from the silica capsules, the pH of the textile product treatment agent composition of the present invention at 30°C is 4.0 or less, preferably 3.5 or less, more preferably 3.2 or less, even more preferably 3.0 or less, even more preferably 2.8 or less, even more preferably 2.6 or less, and even more preferably 2.4 or less. Furthermore, from the viewpoint of safety in use, the pH is preferably 1.5 or higher.

[0082] When using a surfactant having an ester group as represented by general formula (B2) as component (B), the surfactant tends to hydrolyze easily if the pH of the textile product treatment agent composition is too high or too low. Therefore, when using a surfactant having an ester bond as represented by general formula (B2), it is preferable to set the pH of the composition while considering the amount used and stability. The method for measuring pH is described in the examples.

[0083] <Components that the textile product treatment agent composition of the present invention may contain> The textile product treatment agent composition of the present invention may further contain the following components.

[0084] <(C) component> The textile product treatment composition of the present invention preferably contains silica particles as component (C) from the viewpoint of maintaining the adsorption rate of the fragrance inside the capsule even at high temperatures or after long-term storage. The silica particles of component (C) are preferably particles in which the silica portion is not a shell or membrane, for example, solid particles.

[0085] There are no restrictions on the type or particle size of silica particles used in this invention; for example, colloidal silica can be used.

[0086] Colloidal silica is generally a colloidal solution in which negatively charged amorphous silica particles are dispersed in an aqueous solution in a monodisperse state of primary particles. -SiOH groups and -OH ions are present on the surface of the colloidal silica particles, and an electrical double layer is formed by alkali ions, stabilizing the particles through repulsion between them. Colloidal silica mainly consists of silicon dioxide, but may also contain small amounts of aluminates such as sodium aluminate and potassium aluminate, inorganic salts such as sodium hydroxide, potassium hydroxide, lithium hydroxide, and ammonium hydroxide, and organic salts such as tetramethylammonium hydroxide. These inorganic and organic salts act as colloidal stabilizers. The dispersion medium for colloidal silica may include an organic solvent in addition to water. The organic solvent may be water-soluble or water-insoluble, but it is preferably a water-soluble organic solvent such as methanol, ethanol, isopropyl alcohol, or n-propanol.

[0087] There are no particular restrictions on the method of producing colloidal silica, and it can be produced by known methods. For example, (1) the water glass method, in which an alkali metal silicate salt such as sodium silicate is used as a raw material and particles are grown by a condensation reaction in an aqueous solution, and (2) the alkoxysilane method, in which an alkoxysilane such as tetraethoxysilane is used as a raw material and particles are grown by a condensation reaction in water containing a water-soluble organic solvent such as alcohol. Colloidal silica can be categorized into cationic colloidal silica and anionic colloidal silica. Cationic colloidal silica is produced by adjusting the pH to 2-4 to make the colloidal silica cationic, or by introducing cationic groups such as amino groups or ammonium groups to the silanol groups on the surface of the silica particles.

[0088] Anionic colloidal silica is obtained by stably dispersing ultrafine particles of anhydrous silicic acid, in an aqueous liquid, with silanol groups, hydroxyl groups, and anionic groups such as carboxyl groups and sulfone groups present on the surface of the silica particles. The treatment solution containing anionic colloidal silica preferably contains sodium hydroxide, potassium, ammonia, etc., to stabilize the colloid and is alkaline with a pH of about 8 to 11 at 25°C. As anionic colloidal silica, a solution in which high molecular weight anhydrous silicic acid ultrafine particles are dispersed in water is preferred. Commercially available products include the Snowtex series from Nissan Chemical Industries, Ltd., specifically Snowtex S, Snowtex N, Snowtex C, Snowtex XL, Snowtex XS, Snowtex ZL, Snowtex 20, Snowtex 30, Snowtex 40, and Snowtex MP2040; the Cataloid series from JGC Catalysts & Chemicals Corporation, specifically Cataloid SI-350, Cataloid SI-50, Cataloid SI-30, Cataloid S-20L, Cataloid S-20H, Cataloid S-30L, Cataloid S-45P, Cataloid SI-40, and Cataloid SI-80P; and the Levasil series from Bayer.

[0089] The average particle size of the silica particles used in this invention (hereinafter also simply referred to as "average particle size of silica particles") can be measured as a volume-average particle size using the laser light scattering method. The average particle size of the silica particles is not particularly specified, but from the viewpoint of storage stability and aesthetics, it is preferably 10 nm or more, more preferably 20 nm or more, even more preferably 30 nm or more, and even more preferably 50 nm or more, and preferably 300 nm or less, more preferably 250 nm or less, even more preferably 200 nm or less, and even more preferably 100 nm or less.

[0090] If the textile product treatment agent composition of the present invention contains component (C), its content is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.3% by mass or more, and preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 3% by mass or less.

[0091] <(D) component> The textile product treatment composition of the present invention may contain, as component (D), a fragrance compound other than the fragrance compound encapsulated in component (A). In the present invention, even if a fragrance compound is present, if it is not encapsulated in microcapsules, it is treated as component (D).

[0092] There are no particular restrictions on the fragrance compounds that can be used as component (D), and the same fragrance compounds released from component (A) may be used. Component (D) can be incorporated into the textile product treatment agent composition of the present invention as a fragrance composition containing multiple fragrance compounds. (D) As fragrance compounds that can be used as components, for example, in addition to fragrances listed in "Basic Knowledge of Fragrances and Perfumery, edited by Motoki Nakajima, published by Sangyo Tosho Co., Ltd., 4th printing April 20, 2005" and fragrance compounds known to be incorporated into fabric softeners, etc. through patent documents, etc., fragrance components or fragrance compositions themselves that have been independently prepared by fragrance manufacturers can also be used. (D) Examples of components include β-ionone (4.4), γ-undecalactone (3.1), γ-nonalactone (2.1), γ-methylionone (4.8), ambroxan (4.8), iso E super (5.2), ethyl vanillin (1.6), ethylene blushylate (4.7), eugenol (2.7), cashmeran (manufactured by IFF) (4.5), coumarin (1.5), geraniol (3.5), o,t-butylcyclohexyl acetate (4.4), citronellyl acetate (4.6), dimethylbenzylcarbin acetate (3.4), sandal mysore core (4.7), dihydrogenated ammonium compounds. Examples include methyl smonate (3.5), dihydromyrcenolate (3.5), dimethyltetrahydrobenzaldehyde (2.9), javanol (manufactured by Divaudan) (4.7), nerolin jalayala (3.3), habanolide (manufactured by Firmenig) (4.9), fluate (Kao Corporation) (3.6), paeonyl (manufactured by Divaudan) (4.3), hexyl cinnamic aldehyde (4.8), heliotropin (1.8), methyl β-naphthyl ketone (2.9), methyl anthranilate (2.3), raspberry ketone (1.5), limonene (4.8), and lilial (4.4). The values ​​in parentheses are logP values.

[0093] Furthermore, the textile product treatment agent composition of the present invention may contain diluents and fixatives for fragrance compounds. Examples of diluents and fixatives include dipropylene glycol, isopropyl palmitate, diethyl phthalate, benzyl benzoate, liquid paraffin, isoparaffin, and oils and fats. When diluents and fixatives are used, the amount of diluents and fixatives relative to the total amount of component (D) and the diluents and fixatives is preferably 0% by mass or more and 20% by mass or less. These diluents and fixatives can also be used with fragrance compounds encapsulated in microcapsules of component (A).

[0094] By using component (D) in combination with component (A), it becomes possible to design fragrances with greater flexibility than before. Therefore, when a textile product is treated with the textile product treatment composition of the present invention that uses component (D) in combination, for example, a fresh and rich fragrance can be imparted.

[0095] If the textile product treatment agent composition of the present invention contains component (D), its content is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more in the composition. From the viewpoint of the storage stability of the textile product treatment agent composition (hereinafter also referred to as storage stability) and the balance of fragrance with other fragrance components, it is preferably 2.5% by mass or less, more preferably 2.0% by mass or less, and even more preferably 1.8% by mass or less. The content of component (D) in the textile product treatment agent composition can be adjusted according to the product.

[0096] Furthermore, when the textile product treatment composition of the present invention contains component (D), the total content of component (A) and component (D) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more, from the viewpoint of sufficiently fragrance the textile product, and preferably 2.8% by mass or less, more preferably 2.5% by mass or less, and even more preferably 2.0% by mass or less, from the viewpoint of storage stability and fragrance balance with other fragrance components.

[0097] <(E) component> The textile product treatment agent composition of the present invention may contain, as component (E), one or more nonionic surfactants selected from polyoxyalkylene alkyl ethers having an alkyl group with 8 to 24 carbon atoms and polyoxyalkylene alkenyl ethers having an alkenyl group with 8 to 24 carbon atoms.

[0098] (E) Component is preferably at least one selected from nonionic surfactants represented by the following general formula (E1). R 1e -A-[(R 2e O) p1 -R 3e ] q1 (E1) [In the formula, R 1e R is an alkyl group or alkenyl group having 8 or more carbon atoms, preferably 10 or more, and 24 or less, preferably 18 or less, more preferably 16 or less. 2e R is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group, 3e A is an alkyl group or hydrogen atom having 1 to 3 carbon atoms, p1 is 2 or more, preferably 5 or more, more preferably 10 or more, and 100 or less, more preferably 80 or less, and even more preferably 60 or less, and the addition form may be random addition or block addition. A is -O-, -COO-, -CONH-, -NH-, -CON< or -N<, and when A is -O-, -COO-, -CONH- or -NH-, q1 is 1, and when A is -CON< or -N<, q1 is 2.

[0099] Specific examples of compounds with general formula (E1) include those represented by the following formulas (E1-1) to (E1-4). R 1e -O-(C2H4O) p11 -H (E1-1) [In the formula, R 1e The above indicates the meaning. p11 is a number of 8 or more, preferably 10 or more, and 100 or less, preferably 60 or less. R 1e -O-(C2H4O) s (C3H6O) t -H (E1-2) [In the formula, R 1e The above meaning is indicated. s and t are each independently a number of 2 or more, preferably 5 or more, and 40 or less, and (C2H4O) and (C3H6O) may be random or block adducts. R 1e -O-(C2H4O) x1 -(C3H6O) y -(C2H4O) x2 -H (E1-3) [In the formula, R 1e The above indicates the meaning. x1, y, and x2 are the average number of moles added, where x1 is between 1 and 13, y is between 1 and 4, and x2 is between 1 and 13. (C2H4O), (C3H6O), and (C2H4O) are block adducts.

[0100] [ka]

[0101] [In the formula, R 1e The above means. B is -CON<, u and v are independently numbers between 0 and 40, and u+v is a number between 5 and 60, preferably 40. 4e , R 5e Each of these is independently either a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.

[0102] If the textile product treatment agent composition of the present invention contains component (E), its content is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, even more preferably 2.0% by mass or more, and preferably 5.0% by mass or less, more preferably 4.5% by mass or less, and even more preferably 4.0% by mass or less, in the composition.

[0103] <(F) component> The textile product treatment agent composition of the present invention may contain an inorganic salt as component (F) from the viewpoint of improving storage stability. As for the inorganic salt, from the viewpoint of improving storage stability, one or more selected from sodium chloride, calcium chloride, and magnesium chloride are preferred. If the textile product treatment agent composition of the present invention contains component (F), its content is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, and even more preferably 0.02% by mass or more, from the viewpoint of improving the dispersibility of the textile product treatment agent composition, and preferably 1.0% by mass or less, more preferably 0.5% by mass or less, and even more preferably 0.3% by mass or less, from the viewpoint of improving the storage stability of the textile product treatment agent composition.

[0104] <(G) component> From the viewpoint of improving storage stability, the textile product treatment composition of the present invention may contain an ester of a polyhydric alcohol and a fatty acid as component (G). As esters of polyhydric alcohols and fatty acids, ester compounds of polyhydric alcohols having 3 to 6 carbon atoms and a valency of 3 to 6 are preferred, and fatty acids having 12 to 22 carbon atoms. More specifically, the ester compound is a polyhydric alcohol having preferably 3 or more carbon atoms, more preferably 4 or more, and preferably 6 or less, and preferably trivalent or higher, more preferably tetravalent or higher, and preferably hexavalent or lower, and a fatty acid having preferably 12 or more carbon atoms, more preferably 14 or more, even more preferably 16 or more, and preferably 22 or less, and more preferably 20 or less. (G) The polyhydric alcohol constituting component (G) is preferably one or more selected from glycerin, trimethylolethane, trimethylolpropane, 1,3,5-pentatriol, erythritol, arabitol, pentaerythritol, sorbitan, sorbitol, xylitol, and mannitol, and more preferably one or more selected from pentaerythritol and sorbitan. The fatty acids constituting component (G) are preferably one or more selected from saturated fatty acids such as lauric acid, myristic acid, stearic acid, and palmitic acid; unsaturated fatty acids such as oleic acid, elaidic acid, linoleic acid, and linolenic acid; fatty acids derived from vegetable oils such as palm oil fatty acids and hydrogenated palm oil fatty acids; and fatty acids derived from animal oils such as beef tallow fatty acids and hydrogenated beef tallow fatty acids. More preferably, one or more selected from saturated fatty acids, fatty acids derived from vegetable oils, and fatty acids derived from animal oils are selected, and even more preferably, one or more selected from stearic acid, hydrogenated palm oil fatty acids, and hydrogenated beef tallow fatty acids are selected. In the present invention, component (G) is preferably one or more selected from ester compounds of pentaerythritol and fatty acids having 16 to 22 carbon atoms (hereinafter also referred to as "pentaerythritol fatty acid ester") and ester compounds of sorbitan and fatty acids having 16 to 22 carbon atoms (hereinafter also referred to as "sorbitan fatty acid ester").

[0105] When the textile product treatment agent composition of the present invention contains component (G), the content of component (G) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, even more preferably 0.7% by mass or more, and preferably 5.0% by mass or less, more preferably 4% by mass or less, and even more preferably 3% by mass or less.

[0106] <(H) component> The textile product treatment agent composition of the present invention may contain an amphoteric surfactant as component (H).

[0107] (H) There are no particular restrictions on the component as long as it can be generally incorporated into liquid fabric softener compositions, for example, alkyl (12 to 22 carbon atoms) amidopropyl carbobetaine, alkyl (12 to 22 carbon atoms) amidopropyl sulfobetaine, alkyl (12 to 22 carbon atoms) carbobetaine, alkyl (12 to 22 carbon atoms) sulfobetaine, alkyl (10 to 18 carbon atoms) dimethylamine oxide, etc.

[0108] When the textile product treatment agent composition of the present invention contains component (H), the content of component (H) is preferably 0.01% 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 0.5% by mass or more, from the viewpoint of reducing the viscosity of the textile product treatment agent composition and improving its bactericidal properties, and preferably 4.0% by mass or less, more preferably 3.5% by mass or less, and even more preferably 2.5% by mass or less, from the viewpoint of suppressing a decrease in storage stability and softening effect.

[0109] <(I) component> The textile product treatment agent composition of the present invention may contain a water-insoluble silicone compound as component (I). In this specification, "water-insoluble" of component (I) means that the amount of silicone compound that dissolves in 1 L of deionized water at 20°C is 1 g or less. (I) Specific examples of component include silicone compounds such as dimethylpolysiloxane, quaternary ammonium-modified dimethylpolysiloxane, amino-modified dimethylpolysiloxane, amide-modified dimethylpolysiloxane, epoxy-modified dimethylpolysiloxane, carboxy-modified dimethylpolysiloxane, polyoxyalkylene-modified dimethylpolysiloxane, and fluorine-modified dimethylpolysiloxane.

[0110] (I) Component is preferably one or more selected from dimethylpolysiloxane, amino-modified dimethylpolysiloxane, amide-modified dimethylpolysiloxane, and polyoxyalkylene (polyoxyethylene and / or polyoxypropylene, preferably polyoxyethylene)-modified dimethylpolysiloxane. Component (I) has a weight-average molecular weight of preferably 1,000 or more, more preferably 3,000 or more, even more preferably 5,000 or more, and preferably 1,000,000 or less. Component (I) has a viscosity of preferably 2 mm at 25°C. 2 / s or more, more preferably 500mm 2 / s or more, more preferably 1,000 mm 2 It is 1 / s or more, and preferably 1,000,000 mm 2 The value is less than or equal to / s. Note that the weight-average molecular weight of component (I) was measured using gel permeation chromatography with polystyrene as the standard substance.

[0111] The amino equivalent (amino equivalent is the molecular weight per nitrogen atom) of the amino-modified dimethylpolysiloxane is preferably 1,500 g / mol or more, more preferably 2,500 g / mol or more, even more preferably 3,000 g / mol or more, and preferably 40,000 g / mol or less, more preferably 20,000 g / mol or less, and even more preferably 10,000 g / mol or less.

[0112] When the textile product treatment agent composition of the present invention contains component (I), the content of component (I) is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of giving a refreshing feeling as a finished texture of the textile product, and preferably 5% by mass or less from the viewpoint of dispersibility. Furthermore, if the textile product treatment agent composition of the present invention contains component (I), the content of component (I) is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, even more preferably 0.01% by mass or more, and preferably 1.0% by mass or less, more preferably 0.5% by mass or less, and even more preferably 0.1% by mass or less, from the viewpoint of suppressing foaming.

[0113] <(J) component> As described above, the textile product treatment composition of the present invention may contain a pH adjuster as component (J) in order to adjust the pH of the textile product treatment composition to 4.0 or less. Acids used as pH adjusters include inorganic acids and organic acids. Specific examples of inorganic acids include hydrochloric acid, sulfuric acid, and nitric acid. Specific examples of organic acids include monovalent or polyvalent carboxylic acids with 1 to 10 carbon atoms, monovalent or polyvalent sulfonic acids with 1 to 20 carbon atoms, and alkyl sulfuric acids with 1 to 3 carbon atoms. More specifically, examples include methyl sulfuric acid, ethyl sulfuric acid, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, ethylenediaminetetraacetic acid, citric acid, benzoic acid, and salicylic acid. The textile product treatment agent composition of the present invention may optionally contain an alkaline agent such as sodium hydroxide or an alkanolamine as a pH adjuster. If the textile product treatment agent composition of the present invention contains a pH adjuster, the amount thereof can be adjusted as appropriate, preferably to an amount that brings the pH to, for example, the aforementioned range without impairing storage stability.

[0114] On the other hand, in the textile product treatment agent composition of the present invention, if the surfactant of component (B) has an ester group represented by general formula (B2), it is desirable to suppress the hydrolysis of the ester group as much as possible from the viewpoint of the storage stability of the textile product treatment agent composition. To suppress the hydrolysis of the ester group while keeping the pH of the textile product treatment agent composition within the aforementioned range, preferred acids include hydrochloric acid, sulfuric acid, nitric acid, and methyl sulfuric acid, which have a pKa of 3 or less at 30°C, preferably 2 or less, and more preferably 0 or less. On the other hand, when using a surfactant having an ester group as component (B), it is preferable to use less of or not use acids such as citric acid, benzoic acid, and acetic acid, which have a pKa of more than 3 at 30°C.

[0115] <(K) component> The textile product treatment agent composition of the present invention may contain a fatty acid having 12 to 22 carbon atoms, from the viewpoint of improving the softening effect. The fatty acid of component (K) may be included as an unreacted product during the synthesis of component (B) or as a decomposition product of component (B). As component (K), saturated or unsaturated fatty acids with 12 to 22 carbon atoms are preferred, and specifically, fatty acids selected from lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, erucic acid, and behenic acid are preferred, with fatty acids selected from palmitic acid, stearic acid, oleic acid, and linoleic acid being more preferred.

[0116] When the textile product treatment agent composition of the present invention contains component (K), the content of component (K) is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and preferably 0.3% by mass or less, more preferably 0.2% by mass or less, and even more preferably 0.1% by mass or less in the composition.

[0117] <(L) component> The textile product treatment agent composition of the present invention may contain a water-soluble organic solvent as component (L) from the viewpoint of storage stability and viscosity. Examples of water-soluble organic solvents include general water-soluble organic solvents used in textile product treatment agent compositions. Note that in component (L), "water-soluble organic solvent" refers to an organic solvent that dissolves in 20g or more of deionized water at 20°C per 100g. Specific examples of water-soluble organic solvents include propylene glycol, ethylene glycol, glycerin, diethylene glycol, monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, triethylene glycol monophenyl ether, isopropanol, and ethanol. Among these, water-soluble organic solvents selected from ethylene glycol, ethanol, and propylene glycol are preferred.

[0118] If the textile product treatment agent composition of the present invention is sufficiently stabilized by other components and has low viscosity, it may not contain the water-soluble organic solvent which is component (L). When the textile product treatment agent composition of the present invention contains component (L), the content of component (L) is preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 5% by mass or less, and preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more.

[0119] <(M) component> In the textile product treatment composition of the present invention, it is preferable to use a chelating agent as component (M) from the viewpoint of suppressing changes in hue, fading of dyes, and deterioration of fragrance during long-term storage of the textile product treatment composition. Furthermore, component (M) in the present invention may also function as the aforementioned acidifying agent.

[0120] Specific examples of chelating agents include ethane-1-hydroxy-1,1-diphosphonic acid, ethylenediaminetetraacetic acid, methylglycine diacetic acid, hydroxyethyliminodiacetic acid, ethylenediamine disuccinic acid, L-glutamic acid-N,N-diacetic acid, N-2-hydroxyethyliminodiacetic acid, citric acid, succinic acid, and their salts. As salts, alkali metal salts and ammonium salts are preferred, and sodium salts and potassium salts are more preferred.

[0121] If the textile product treatment agent composition of the present invention contains component (M), the content of component (M) is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and preferably 2% by mass or less, 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, and even more preferably 0.1% by mass or less.

[0122] <(N) component> The textile product treatment composition of the present invention may contain, as component (N), microcapsules other than component (A) containing a fragrance compound, or a fragrance precursor. Component (N), when used in combination with components (A) and (D), allows for a more flexible fragrance design than before. Component (N) can be a sustained-release fragrance, and can be an ester compound of an aliphatic monocarboxylic acid or aliphatic dicarboxylic acid, such as the silicate ester compound described in Japanese Patent Publication No. 2014-125685 or the alcohol-based fragrance compound described in Japanese Patent Publication No. Hei 8-502522.

[0123] When the textile product treatment agent composition of the present invention contains component (N), the content of component (N) is preferably 0.15% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.45% by mass or more, and preferably 0.65% by mass or less, more preferably 0.6% by mass or less, and even more preferably 0.55% by mass or less in the composition.

[0124] When the textile product treatment agent composition of the present invention contains component (N), the total content of components (A), (D), and (N) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more, from the viewpoint of sufficiently fragrance the textile product, and preferably 3.0% by mass or less, more preferably 2.5% by mass or less, and even more preferably 2.0% by mass or less, from the viewpoint of balancing storage stability and the palatability of fragrance intensity.

[0125] The mass percentage of component (N) is calculated based on the mass of the fragrance compound contained within the microcapsules of component (N) and the fragrance compound that constitutes the fragrance precursor of component (N).

[0126] <(O) component> In the textile product treatment composition of the present invention, antioxidants such as butylhydroxytoluene (BHT) can be used from the viewpoint of suppressing deterioration of the base material, and dyes and pigments commonly used in textile product treatment compositions can also be used from the viewpoint of aesthetics and preventing discoloration during long-term storage. Furthermore, antibacterial and antifungal agents commercially available under the trade name Proxel can also be used. Benzoic acid and its salts can also be used as antibacterial and antifungal agents.

[0127] <Other ingredients, etc.> The textile product treatment agent composition of the present invention preferably contains water. It is preferable that it is a liquid composition containing water. Water is usually the remainder of the composition and is used so that the total of the components is 100% by mass. The textile product treatment agent composition of the present invention preferably contains 60% by mass or more, more preferably 65% ​​by mass or more, and preferably 95% by mass or less, and more preferably 90% by mass or less, of water.

[0128] The textile product treatment agent composition of the present invention is suitable for use in textile products, such as clothing, fabrics, bedding, towels, and the like. The textile product treatment composition of the present invention can be used for softening textile products. For example, the textile product treatment composition of the present invention may be a softening agent composition for textile products, or a liquid softening agent composition for textile products.

[0129] <Method for producing a textile product treatment agent composition> The textile product treatment agent composition of the present invention can be produced by mixing component (A), component (B), and water. The order in which components (A), (B), and water are mixed is not important. For example, one method is to add component (A) to a mixture of component (B) and water, and then adjust the pH using the aforementioned acid. The timing of adding the acid used to adjust the pH is such that it may be mixed with component (B) before mixing with water, or it may be added after mixing with water but before adding component (A). The textile product treatment agent composition of the present invention can also be produced, for example, by producing component (A) by a method including steps 1 and 2, and then mixing the obtained component (A) with component (B) and water. In these production methods, the aforementioned optional components can be mixed as appropriate. When adding component (A), you may dilute it with water to about 2 to 8 times its volume before adding it to prevent the capsules from clumping together after mixing.

[0130] <Processing methods for textile products> The present invention provides a method for treating textile products, which involves mixing component (A), component (B), and water to obtain a treatment solution and then bringing the textile product into contact with the textile product. The components (A) and (B) used in the textile product treatment method of the present invention may be those described in the textile product treatment composition of the present invention. Preferred embodiments of components (A) and (B) are the same as those in the textile product treatment composition of the present invention. The matters described in the textile product treatment composition of the present invention can be appropriately applied to the textile treatment method of the present invention.

[0131] In the method for treating textile products of the present invention, it is preferable that the treatment liquid is obtained by mixing the treatment agent composition for textile products of the present invention with water. [Examples]

[0132] <Fragrance composition> Model fragrance A-1, having the composition shown in Table 1-1, and model fragrance A-2, having the composition shown in Table 1-2, were used as the fragrance compositions to be encapsulated in the microcapsules.

[0133] [Table 1-1]

[0134] [Table 1-2]

[0135] <(A) component> (A-1): Silica capsule obtained in synthesis example a-1 below (A-2): Silica capsule obtained in synthesis example a-2 below

[0136] <Synthesis Example a-1> Synthesis of (A-1) (Process 1) 3.0 g of Cotamin 60W (product name, manufactured by Kao Corporation, cetyltrimethylammonium chloride, 30% by mass of active ingredient) was diluted with 750 g of deionized water to obtain the aqueous phase component. To this aqueous phase component, an oil phase component prepared by mixing 200 g of model fragrance A-1 in the proportions shown in Table 1 and 50 g of tetraethoxysilane (hereinafter also referred to as "TEOS") was added, and the mixture was emulsified at a rotation speed of 8,500 rpm using a homomixer (manufactured by HsiangTai, model: HM-310, the same applies hereinafter) to obtain the emulsion. The median diameter D of the emulsion droplet at this time 50 It was 1.4 μm. The pH of the resulting emulsion was adjusted to 3.8 using a 1% aqueous sulfuric acid solution. The mixture was then transferred to a separable flask equipped with a stirring blade and a condenser, and stirred at 200 rpm for 24 hours while maintaining the liquid temperature at 30°C to obtain an aqueous dispersion containing silica capsules (1-1) having a core made of model fragrance A-1 and a first shell made of silica.

[0137] (Process 2) The aqueous dispersion obtained in step 1 was stirred at a liquid temperature of 30°C, and 21 g of TEOS was added dropwise over 420 minutes. After the addition, stirring was continued for another 17 hours, and then the mixture was cooled to form a second shell enclosing the first shell, yielding an aqueous dispersion containing silica capsules (A-1) in which model fragrance A was encapsulated in amorphous silica. The median diameter D of the silica capsule (A-1) 50 The median diameter D of the emulsified droplet and silica capsule (A-1) was 2.1 μm. 50 The particle size distribution was measured using a laser diffraction / scattering particle size distribution analyzer "LA-960" (product name, manufactured by Horiba, Ltd.). A flow cell was used for the measurement, with water as the medium and the refractive index set to 1.40-0i. An emulsion or aqueous dispersion containing silica capsules was added to the flow cell, and measurements were performed at a concentration showing a transmittance of approximately 90%. The median diameter D was measured by volume. 50 They sought it. The thickness of the first shell was approximately 5 nm, and the thickness of the second shell was 5-30 nm.

[0138] <Synthesis Example a-2> Synthesis of (A-2) (Process 1) 3.0 g of Cotamin 60W (product name, manufactured by Kao Corporation, cetyltrimethylammonium chloride, 30% by mass of active ingredient) was diluted with 750 g of deionized water to obtain the aqueous phase component. To this aqueous phase component, an oil phase component prepared by mixing 200 g of model fragrance A-2 in the proportions shown in Table 1-2 and 50 g of tetraethoxysilane (hereinafter also referred to as "TEOS") was added, and the mixture was emulsified at a rotation speed of 8,500 rpm using a homomixer (manufactured by HsiangTai, model: HM-310, the same applies hereinafter) to obtain the emulsion. The median diameter D50 of the emulsion droplet at this time was 1.3 μm. The pH of the resulting emulsion was adjusted to 3.8 using a 1% aqueous sulfuric acid solution. The mixture was then transferred to a separable flask equipped with a stirring blade and a condenser, and stirred at 200 rpm for 24 hours while maintaining the liquid temperature at 30°C to obtain an aqueous dispersion containing silica capsules (1-2) having a core made of model fragrance A-2 and a first shell made of silica.

[0139] (Process 2) While stirring the aqueous dispersion obtained in Project 1 at a liquid temperature of 30°C, 21 g of TEOS was added dropwise over 420 minutes. After the dropwise addition, stirring was continued for an additional 17 hours and then cooled to form a second shell that encapsulates the first shell, obtaining an aqueous dispersion containing silica capsules (A-2) in which model fragrance A-2 is encapsulated by amorphous silica. The median diameter D50 of the silica capsules (A-2) was 1.9 μm. The median diameter D50 of the emulsion droplets and the silica capsules (A-2) was measured using a laser diffraction / scattering particle size distribution analyzer "LA-960" (trade name, manufactured by Horiba, Ltd.). The measurement was performed using a flow cell, with water as the medium and the refractive index set to 1.40 - 0i. An emulsion or an aqueous dispersion containing silica capsules was added to the flow cell, and the measurement was carried out at a concentration where the transmittance was around 90%, and the median diameter D50 was determined based on volume. Incidentally, the thickness of the first shell was about 5 nm, and the thickness of the second shell was 5 - 30 nm.

[0140] <Component (B)> (B-1): The reaction mixture obtained in Synthesis Example b-1 below

[0141] <Synthesis Example b-1> Production of (B-1) Triethanolamine and a fatty acid represented by RCOOH were subjected to an esterification reaction at a reaction molar ratio (fatty acid / triethanolamine) of 1.65 / 1 to obtain an esterification reaction product. The esterification reaction product contained 5% by mass of unreacted fatty acid. After performing a quaternization reaction with dimethyl sulfate so that the amount of methyl groups was 0.96 equivalents relative to the amine of the amine compound in the esterification reaction product, ethanol was added. In the above manner, a reaction product [(B-1)] containing a quaternary ammonium salt compound [hereinafter referred to as (B-1-1)] and a tertiary amine compound [hereinafter referred to as (B-1-2)] as the component (B) was prepared.

[0142] The composition ratio of each component of the obtained reaction product was analyzed by HPLC method and quantified using tetraoctylammonium bromide as an internal standard substance. As a result, the obtained reaction product (B-1) was shown as a compound represented by the following general formula (B1-1) R 14 76% by mass of (B-1-1) is a methyl group, and 12% by mass of (B-1-2) is a tertiary amine compound represented as a compound having no R group in the following general formula (B1-1), 10% by mass of ethanol, 2% by mass of unreacted fatty acid, and contains trace amounts of quaternized triethanolamine and other trace components. Further, the quaternary ammonium salt compound of (B-1-1) is, in the general formula (B1-1), where R 14 is an acyl group, R 11 and R 12 are hydrogen atoms, R 13 is a methyl group, and X 14 is a methyl sulfate ion, and the compound is 28% by mass. In the general formula (B1-1), where R - and R 11 are acyl groups, R 12 is a hydrogen atom, R 13 is a methyl group, and X 14 is a methyl sulfate ion, and the compound is 56% by mass. In the general formula (B1-1), where R - and R 11 are acyl groups, R 12 is a methyl group, and X 13 is a methyl sulfate ion, and the compound is 16% by mass. Further, the tertiary amine compound of (B-1-2) is substantially free of a compound in the general formula (B1-1) (herein meaning a compound having no R 14 where R - is an acyl group, R 14 and R 11 are hydrogen atoms. In the general formula (B1-1), where R 12 and R 13 are acyl groups, R 11 is a hydrogen atom, and the compound is 17% by mass. In the general formula (B1-1), where R 12 and R 13 are acyl groups, and the compound is 83% by mass. Also, the quaternization rate of the reactant (B-1) was 80% by mass.

[0143]

Chemical formula

[0144] The composition of RCOOH used in the reaction to produce (B-1) is shown below. Palmitic acid: 45% by mass Stearic acid: 25% by mass Oleic acid: 27% by mass Linoleic acid: 3% by mass The above composition was determined by analyzing the fatty acids used as raw materials using gas chromatography, and the area percentage of each fatty acid was considered as the mass percentage. The values ​​in the formulation table have been converted to the total concentration of the quaternary ammonium salt compound (B-1-1) and the tertiary amine compound (B-1-2).

[0145] <(C) component> (C-1): Snowtex ST-S (Nissan Chemical Corporation) (C-2): Snowtex ST-O (Nissan Chemical Corporation)

[0146] <(D) component> (D-1): Fragrances listed in Table 1-1 (formulated without encapsulation) (D-2): Fragrances listed in Table 1-2 (formulated without encapsulation) (D-3): Fragrances listed in Table 2

[0147] [Table 2]

[0148] <(E) component> (E-1): A compound obtained by adding an average of 30 moles of ethylene oxide to lauryl alcohol. That is, in general formula (E1-1), R 1e R is a linear alkyl group with 12 carbon atoms bonded to an oxygen atom. 1e Nonionic surfactants in which the carbon atoms are primary carbon atoms and p11 is 30

[0149] <(F) component> (F-1): Calcium chloride

[0150] <(I) component> (I-1): An aqueous emulsion of dimethylpolysiloxane prepared in the synthesis example i-1 below.

[0151] <Synthesis Example i-1> Synthesis of (I-1) 5 g of polyoxyethylene lauryl ether with an average addition of 5 moles is added to dimethylpolysiloxane (viscosity at 25°C: 500,000 mm²). 2 300g of (s) was added under high shear force, and stirring continued under high shear force for a further 10 minutes. Then, 30g of deionized water was added, followed by 2g of sodium polyoxyethylene lauryl ether sulfate with an average addition of 2 moles, and 15g of polyoxyethylene myristyl ether with an average addition of 40 moles. Stirring continued under high shear force for a further 30 minutes, and then 248g of water was added and stirred to obtain an aqueous emulsion of dimethylpolysiloxane [(I-1)]. The volume-average particle size of the emulsion particles in (I-1) was 500nm. The dimethylpolysiloxane content in (I-1) was 50% by mass. The volume-average particle size was measured at 20°C using an electrophoretic light scattering photometer (Otsuka Electronics Co., Ltd., model ELS-8000) after dispersing the aqueous emulsion in ethanol.

[0152] <(J) component> (J-1): 35% by mass hydrochloric acid aqueous solution (J-2): 50% by mass citric acid aqueous solution

[0153] <(L) component> (L-1): Ethylene glycol

[0154] <(M) component> (M-1): Trisodium methylglycine diacetate

[0155] <(N) component> (N-1):Si(O-Geranyl)4 Note that "Geranyl" in (N-1) represents the group obtained by removing one hydroxyl group from geraniol (primary allyl alcohol fragrance, logP 3.5). (N-1) was synthesized using the synthesis example n-1 described below.

[0156] <Synthesis Example n-1> Synthesis of (N-1) [Si(O-Geranyl)4] 27.08 g (0.13 mol) of tetraethoxysilane, 72.30 g (0.47 mol) of geraniol, and 0.485 mL of 2.8% by mass sodium methoxide methanol solution were placed in a 200 mL four-necked flask, and the mixture was stirred at 110-120°C for 2 hours while distilling off ethanol under a nitrogen stream. After 2 hours, the pressure in the tank was gradually reduced to 8 kPa, and the mixture was stirred at 117-120°C for a further 4 hours while distilling off the ethanol. After 4 hours, the mixture was cooled, the pressure was released, and the mixture was filtered to obtain 76.92 g of a yellow oily substance containing a geraniol silicate ester fragrance precursor.

[0157] (N-2): Ester of lauric acid and ethyl vanillin (N-2) was synthesized using the synthesis example n-2 described below.

[0158] <Synthesis Example n-2> Synthesis of (n-2) [Ester of Lauric Acid and Ethyl Vanillin] Under a nitrogen atmosphere, 8.95 g (0.041 mol) of laurate chloride and 40 mL of dichloromethane were placed in a 300 mL four-necked flask and cooled to 0°C. Meanwhile, 6.80 g (0.041 mol) of ethyl vanillin, 4.35 g (0.043 mol) of triethylamine, and 40 mL of dichloromethane were placed in a 100 mL dropping funnel. The solution was added dropwise from the dropping funnel to the flask over 40 minutes, maintaining the reaction temperature between -5°C and 0°C. After the addition was complete, the mixture was stirred at room temperature (25°C) for 2 hours. 10 mL of saturated ammonium chloride aqueous solution was added to the flask to stop the reaction. 150 mL of diethyl ether was added, and the resulting white solid was removed by filtration. The filtrate was transferred to a separatory funnel. 100 mL of deionized water was added to the separatory funnel, and the aqueous layer was extracted three times with 50 mL of diethyl ether. The extracted solution was collected, washed with saturated saline solution, and dried over sodium sulfate. After removing the solvent under reduced pressure, 14.20 g (99% yield) of a pale yellow solid ester of lauric acid and ethyl vanillin was obtained. The final product was confirmed to be the desired compound using NMR and IR.

[0159] <(O) component> (O-1): Proxel BDN (manufactured by Arch Chemical Japan Co., Ltd.)

[0160] <Preparation of liquid textile product treatment agent composition (liquid softener composition)> Liquid textile product treatment compositions were prepared by mixing each component to achieve the formulation shown in Table 2. Specifically, the composition is as follows. Note that the mass % in the table refers to the mass % of the active ingredient (component (a) is the mass %) of the fragrance compound. In a 300 mL beaker, an amount of deionized water equivalent to 85% by mass of the amount required to produce 200 g of liquid textile product treatment agent composition was added, along with components (E), (I), (J), (L), (M), and (O). The temperature of the deionized water was adjusted to 60 ± 2 °C using a water bath. A mixture was obtained by stirring with a stirring blade as needed to ensure that component (E) was uniformly dissolved in the deionized water. The stirring blade used was one with three blades, whose long side was positioned at a 90-degree angle to the rotational axis of a 5 mm diameter stirring rod, with a long side / short side ratio of 3 cm / 1.5 cm, and the blades positioned at a 45-degree angle to the rotational surface.

[0161] The mixed solution, heated to a temperature of 60±2℃, was stirred with the aforementioned stirring blade (300 r / m). Component (B), which had been heated and dissolved at 65℃, was added over a period of 3 minutes, followed by the addition of (N-2) from component (N). After the addition was complete, the mixture was stirred for 15 minutes. Next, the mixture was cooled using a 5°C water bath until its temperature reached 30±2°C. Components (A), (C), (N-1), (D), and (F) from component (N) were added sequentially and stirred for 5 minutes. Furthermore, deionized water was added to reach the final mass (200g), and the mixture was stirred for another 5 minutes to obtain the liquid textile product treatment agent composition. The pH was adjusted as appropriate with an aqueous NaOH solution.

[0162] The pH of the liquid fiber product treatment agent composition was measured as follows. A pH measuring composite electrode (HORIBA general-purpose sleeve type) was connected to a pH meter (HORIBA pH meter D-51), and the power was turned on. A saturated potassium chloride aqueous solution (3.33 mol / L) was used as the internal solution for the pH electrode. Next, 100 ml beakers were filled with pH 1.68 standard solution (oxalate standard solution), pH 4.01 standard solution (phthalate standard solution), and pH 6.86 (neutral phosphate standard solution), and immersed in a 30°C constant temperature bath for 30 minutes. The pH measuring electrode was immersed in the standard solutions adjusted to constant temperature for 3 minutes, and the calibration procedure was performed in the order of pH 6.86 → pH 4.01 → pH 1.68. When measuring in the alkaline range, a pH 9.18 standard solution (borate standard solution) is used for calibration instead of the pH 1.68 standard solution. The sample was filled into a 100 ml beaker and adjusted to 30°C in a 30°C constant temperature bath. The pH was measured by immersing a pH measuring electrode in the sample adjusted to constant temperature for 3 minutes.

[0163] The visible light transmittance of the obtained liquid textile product treatment compositions was measured. Specifically, a glass cell with a path length of 10 mm was used as the measurement cell, deionized water was placed in the control cell, and the measurement was performed using a UV-Vis spectrophotometer (Shimadzu UV-2500PC). The visible light transmittance (wavelength 660 nm) of the liquid textile product treatment compositions obtained in the examples and comparative examples was all less than 10%, indicating that they were emulsion-type liquid textile product treatment compositions. The liquid textile product treatment compositions prepared in this study can be used as liquid softener compositions, and sufficient softening effects can be obtained using conventional methods.

[0164] <Rating> Beforehand, cotton knit fabric was washed five times in a Hitachi NW-6CY automatic washing machine using a nonionic surfactant prepared by adding an average of 8 moles of ethylene oxide to a primary alcohol with 12 carbon atoms, and then air-dried indoors to remove excess chemicals. The washing conditions for each wash were: detergent concentration 0.0667% by mass, 47 L of tap water, water temperature 20°C, washing for 10 minutes, two rinses, and spin-drying for 6 minutes. After drying, the fabric was cut into pieces weighing approximately 800 mg each for use.

[0165] Bath treatment was performed using a Turgotometer (Daiei Kagaku Seiki Seisakusho). 675 μL of the above textile product treatment agent composition was added to 320 mL of tap water and stirred at 80 r / m for 1 minute. Then, 27 pieces of the above fabric were added and stirred at 80 r / m for 5 minutes. After that, the fabric was dewatered in a twin-tub washing machine for 2 minutes. To quantify the fragrance compounds remaining on the dehydrated cloths, nine cloths were placed in glass bottles, 180 mL of acetone was added, and extraction was performed by sonication for 30 minutes. The fragrance adsorption rate was calculated using liquid chromatography (Shimadzu Corporation). The fragrances used for calculating the adsorption rate were selected because they have a low logP value, are difficult to adsorb to cloth unless encapsulated, and are present in a certain amount or more for quantitative purposes. Specifically, methyl isoeugenol was used for model fragrance A-1, and methyl dihydrojasmonate was used for model fragrance A-2. For each textile product treatment agent composition, treatment was performed using the composition immediately after preparation and after it had been stored in a sealed bottle at 40°C or 50°C for a predetermined number of days. The fragrance adsorption rate for each composition was then calculated. The results are shown in Tables 3-1 and 3-2.

[0166] [Table 3-1]

[0167] [Table 3-2] < / ph>

Claims

1. A textile product treatment agent composition containing the following components (A) and (B), and water, wherein the pH at 30°C is 1.5 or higher and 4.0 or lower. (A) Components: Microcapsules having a shell containing silica and a core containing a fragrance compound inside the shell. (B) Component: A surfactant having cationic properties at a pH of 4.0 or lower, comprising at least one compound selected from tertiary amines represented by the following general formula (B1), their salts, and quaternary compounds of the amine. 【Chemistry 1】 [In the formula, the R b1 group is a hydrocarbon group having 12 to 28 carbon atoms, which is divided by one or more groups selected from ester groups, amide groups, and ether groups, and the R b2 and R b3 groups are each independently selected from the R b1 group, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl ether alkylene group having 4 to 6 carbon atoms.]

2. The textile product treatment agent composition according to claim 1, wherein the median diameter D50 of component (A) is 0.1 μm or more and 50 μm or less.

3. The textile product treatment agent composition according to claim 1 or 2, wherein the shell of component (A) contains silica formed by a sol-gel reaction of alkoxysilane as a constituent component.

4. The textile product treatment agent composition according to claim 3, wherein the alkoxysilane is tetraethoxysilane.

5. The textile product treatment composition according to claim 1 or 2, wherein component (A) is a microcapsule having a first shell enclosing the core and a second shell enclosing the first shell.

6. The textile product treatment agent composition according to claim 5, wherein the first shell has an average thickness of 20 nm or less.

7. The textile product treatment agent composition according to claim 5, wherein the second shell has an average thickness of 100 nm or less.

8. The textile product treatment composition according to claim 1 or 2, wherein component (B) is a component comprising one or more selected from the following components (b1) and (b2). (b1) Components: A tertiary amine compound represented by the following general formula (B2), and its salt. (b2) Components: Quaternary compounds of tertiary amine compounds represented by the following general formula (B2). [R b11 -C(=O)-O-(C p H 2p O) r -C q H 2q ] m N(R b12 ) 3-m (B2) [In the formula, R b11 is a group selected from linear alkyl groups having 13 to 21 carbon atoms and linear alkenyl groups having 13 to 21 carbon atoms.] R b12 is a group selected from hydrocarbon groups having 1 to 3 carbon atoms and HO-(C p H 2p O) r-C q H 2q groups. m is a number between 1 and 3 (inclusive), p and q are independently numbers of 2 or 3, and r is a number of 0 or 1. If multiple R b11, R b12, p, q, and r atoms exist within the same molecule, they may be identical or different. Furthermore, the total number of carbon atoms in R b11-C(=O)-O-(C p H 2p O)r-C q H 2q is between 14 and 28.

9. The textile product treatment composition according to claim 1 or 2, wherein the textile product treatment composition contains 0.05% by mass or more and 3.0% by mass or less of component (A) as a fragrance compound contained in component (A), and contains 1% by mass or more and 20% by mass or less of component (B).

10. The textile product treatment agent composition according to claim 1 or 2, comprising an acid selected from hydrochloric acid, sulfuric acid, nitric acid, and methylsulfuric acid as a pH adjuster.

11. The textile product treatment agent composition according to claim 1 or 2, further comprising the following component (C). (C) Components: Silica particles (however, particles in which the silica portion is not formed into a shell or membrane)

12. The textile product treatment agent composition according to claim 11, wherein the silica particles that are component (C) are colloidal silica.

13. The textile product treatment composition according to claim 11, wherein the content of component (C) in the textile product treatment composition is 0.01% by mass or more and 3% by mass or less.

14. The textile product treatment composition according to claim 1 or 2, wherein the proportion of fragrance compounds in the core that have a logP of 2.0 or more and a vapor pressure of 0.01 or more and 8.00 or less at 25°C is 25% by mass or more.

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