Textile product treatment composition

Abstract

To provide a composition for a fiber product treatment agent that emits a good fragrance when a treated fiber product is worn, particularly when a treated fiber product is wetted with water such as the user's sweat.SOLUTION: A composition for a fiber product treatment agent contains the following component (a) and component (b). Component (a): a microcapsule that has a shell containing silica as a component and a core that lies inside the shell and contains a fragrant compound including an alcoholic fragrant composition. Component (b): at least one compound selected from a specific amine compound containing an amide group and an acid salt thereof.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a textile product treatment composition. [Background technology]

[0002] Consumers are becoming increasingly interested in scents when washing, drying, and wearing clothes, and the market for liquid fabric softeners and fragrances that appeal to fragrance-related claims is growing significantly. However, textile product treatment compositions used in ordinary households are applied to textile products via water, and therefore the fragrance may not adhere sufficiently to the textile, or may volatilize from the fabric during or over time after drying, resulting in a weaker scent. To address such problems, for example, Patent Document 1 discloses a fabric softening composition that contains a specific long-lasting perfume composition and improves the longevity of the perfume on fabrics.

[0003] Patent Document 2 discloses a sustained-release fragrance composition that can be used on clothing and that uses a mixture of a dibasic acid monoester and / or a dibasic acid diester with ethylene glycol or propylene glycol for the purpose of maintaining a fragrance for a long time. Patent Document 3 also discloses that a fragrance can be maintained for a long time by using an aqueous liquid containing emulsion particles obtained by emulsifying and dispersing a mixture of a fragrance composition and an oil or fat having a melting point of 30°C or higher at normal pressure in water.

[0004] Meanwhile, as a conventional technique for improving fragrance retention during wear, attempts have been made to incorporate microencapsulated fragrances. Patent Document 4 describes an encapsulated fragrance containing a fragrance composition having a flash point in the range of 50 to 130°C as a core material. Patent Document 5 describes that the fragrance retention is improved by incorporating microcapsules produced by the core-shell method into liquid detergents and rinse cycle fabric softeners, which have a shell structure made of silica encapsulating a fragrance. Patent Document 6 also describes that the fragrance can be uniformly applied at a high concentration to multiple different surfaces by using a combination of microcapsules encapsulating a fragrance and a polymer containing a specific amine.

[0005] Patent Document 7 discloses a liquid fabric softener composition with a pH of 2.5 to 4.0 at 30°C, which contains: (A) component containing one or more selected from specific tertiary amine compounds, their acid salts, and their quaternary derivatives; (B) component consisting of microcapsules encapsulating a fragrance containing 90% by mass or more of a fragrance compound having a logP value of 2.0 to 6.0; (C) component consisting of a fragrance precursor that is an ester of the specific fragrance and a specific fatty acid ester or fatty acid diester; and water, with the aim of achieving not only normal fragrance persistence but also excellent odor release when the wearer sweats. Patent Document 8 discloses a textile product treatment composition containing a silicate ester compound of a fragrance compound and a specific fragrance, which improves the fragrance's longevity on fabrics. Patent Document 9 discloses a fabric softener fragrance composition containing a silicate ester compound and a specific long-lasting fragrance. The silicate ester compound has the property of releasing the fragrance upon hydrolysis of the ester bond upon moisture absorption. Patent Document 10 describes the use of an amine compound having a structural formula containing an alkanoylaminopropyldialkylamine to suppress the evaporation of alcohol-based fragrances from textile products, and Patent Document 11 describes a liquid fabric softener composition with excellent fragrance persistence that contains an ester-type cationic compound, an N-alkanoylaminoalkyl-N-dialkylamine or a salt thereof, and an alcohol-based fragrance residue, and describes a microencapsulated fragrance as an alcohol-based fragrance precursor. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Special Publication No. 11-504994 [Patent Document 2] Japanese Patent Application Laid-Open No. 2003-313580 [Patent Document 3] Japanese Patent Application Laid-Open No. 2012-72539 [Patent Document 4] Japanese Patent Application Laid-Open No. 2006-249326 [Patent Document 5] Special Publication No. 2011-517323 [Patent Document 6] Japanese Patent Application Publication No. 2018-172687 [Patent Document 7] Japanese Patent Application Laid-Open No. 2017-008446 [Patent Document 8] Japanese Patent Application Laid-Open No. 2009-256818 [Patent Document 9] Japanese Patent Application Laid-Open No. 2011-063674 [Patent Document 10] Japanese Patent Publication No. 2020-23766 [Patent Document 11] Japanese Patent Publication No. 2020-23773 Summary of the Invention [Problem to be solved by the invention]

[0007] In recent years, several technologies have been proposed for sustaining the fragrance of textiles. However, adsorption of fragrances added to textile treatment agents onto textiles is difficult. When blended with textile treatment agents for bath treatments such as fabric softeners, hydrophilic fragrance compounds with low log P values tend to wash away rather than remain on the textile surface. Furthermore, when directly sprayed onto textiles, fragrance compounds with low vapor pressures tend to disappear during drying. Microencapsulation of fragrances has been proposed as a way to improve fragrance effectiveness, but the capsules must be physically destroyed to release the fragrance. While some of the fragrance is released on the textile surface, which is effective in releasing the fragrance in situations involving moisture, such as when sweating, it is not sufficient and still presents challenges. Furthermore, the conversion of alcohol-based fragrance compounds into precursors of fragrances by silicic acid esters or fatty acid esters has been proposed as a way to improve fragrance effectiveness in situations involving moisture. However, the types of fragrances that can be used are limited, limiting the ability to satisfy a wide range of preferences.

[0008] The present invention provides a textile product treatment composition that gives off a pleasant fragrance when the treated textile product is worn, particularly when the treated textile product is wet with water due to perspiration or the like. [Means for solving the problem]

[0009] The inventors conducted research into improving the effectiveness of fragrance in situations involving moisture, and discovered that by combining specific capsules that adhere to fibers in an aqueous medium and then disintegrate when dried with a specific amine compound, not only is it possible to improve the lingering fragrance of textile products, but also to make the fragrance more pronounced when the textile products are rewetted, thereby arriving at the present invention.

[0010] The present invention relates to a textile product treatment composition containing the following components (a) and (b): Component (a): a microcapsule having a shell containing silica as a constituent component and a core containing a fragrance composition containing an alcohol-based fragrance compound inside the shell Component (b): one or more compounds selected from the group consisting of amine compounds represented by the following general formula (b1) and acid salts thereof:

[0011] [ka]

[0012] [In the formula, R 1b is an alkyl group having 13 to 19 carbon atoms or an alkenyl group having 13 to 19 carbon atoms, and R 2b is an alkylene group having 1 to 6 carbon atoms, and R 3b , R 4b are each independently an alkyl group having 1 to 3 carbon atoms. [Effects of the Invention]

[0013] According to the present invention, there is provided a textile product treatment composition that gives off a pleasant fragrance when the treated textile product is worn, particularly when the treated textile product is wet with water due to perspiration or the like. DETAILED DESCRIPTION OF THE INVENTION

[0014] <Textile product treatment composition> <Component (a)> The textile treatment composition of the present invention contains, as component (a), microcapsules having a shell containing silica as a constituent and a core containing a fragrance composition containing an alcohol-based 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 microcapsules of component (a), will also be referred to as silica capsules. Furthermore, unless otherwise specified, when referring to a fragrance composition, it refers to a fragrance composition containing an alcohol-based fragrance compound.

[0015] <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 a 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 the present invention, the "sol-gel reaction" refers to a reaction in which an alkoxysilane undergoes hydrolysis and polycondensation to form silica, a component of the shell, through a sol and a gel state. Specifically, for example, tetraalkoxysilane is hydrolyzed, and a silanol compound undergoes a dehydration condensation reaction and a dealcoholization condensation reaction to generate a siloxane oligomer, and the dehydration condensation reaction further proceeds to form silica.

[0016] In addition, the shell of the silica capsule of the present invention may contain an inorganic polymer other than silica as a constituent component, as long as the effect of the present invention is not impaired. In the present invention, the inorganic polymer refers to a polymer containing an inorganic element. Examples of the inorganic polymer include a polymer consisting only of inorganic elements, a polymer whose main chain is composed only of inorganic elements and has an organic group as a side chain or substituent, and the like. 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 sol-gel reaction of silica using a metal alkoxide [M(OR)x] as a precursor, where M is a metal or metalloid element and R is a hydrocarbon group. Examples of metal or semimetal elements constituting the metal alkoxide include titanium, zirconium, aluminum, and zinc.

[0017] The alkoxysilane is preferably a tetraalkoxysilane from the viewpoint of increasing the encapsulation rate of the fragrance composition and exhibiting good delivery performance. From the viewpoint of promoting the sol-gel reaction, the tetraalkoxysilane is preferably one having an alkoxy group having from 1 to 4 carbon atoms, more preferably one or more selected from tetramethoxysilane, tetraethoxysilane, and tetraisopropoxysilane, even more preferably one or more selected from tetramethoxysilane and tetraethoxysilane, and still more preferably tetraethoxysilane.

[0018] (Manufacturing of silica capsules) From the viewpoints of increasing the encapsulation rate of the fragrance composition, improving the long-term retention, and achieving good delivery performance of the fragrance composition, the shell of the silica capsule of the present invention preferably contains, as a constituent, silica formed by a two-stage sol-gel reaction. That is, the silica capsule of the present invention is preferably produced by a method including the following steps 1 and 2. Step 1: A step of subjecting an emulsion obtained by emulsifying an aqueous phase component containing a cationic surfactant with a fragrance composition containing an alcohol-based fragrance compound and an oil phase component containing a tetraalkoxysilane to a sol-gel reaction under acidic conditions to form silica capsules (1) having a core and a first shell composed of silica, and obtaining an aqueous dispersion containing the silica capsules (1). Step 2: A step of adding tetraalkoxysilane to the aqueous dispersion containing the silica capsules (1) obtained in Step 1 to carry out a sol-gel reaction, thereby forming silica capsules having a second shell encapsulating the first shell.

[0019] [Process 1] Step 1 is a step of subjecting an emulsion obtained by emulsifying an aqueous phase component containing a cationic surfactant with a fragrance composition containing an alcohol-based fragrance compound and an oil phase component containing a tetraalkoxysilane to a sol-gel reaction under acidic conditions to form silica capsules (1) having a core and a first shell composed of silica, and obtaining an aqueous dispersion containing the silica capsules (1).

[0020] Examples of cationic surfactants used in step 1 include alkylamine salts and alkyl quaternary ammonium salts. The alkylamine salts are preferably salts of secondary amines or tertiary amines, more preferably salts of tertiary amines. The alkylamine salts and alkyl quaternary ammonium salts are compounds having at least one long-chain alkyl group, and optionally, preferably, at least one group selected from a long-chain alkyl group, a short-chain alkyl group, and a benzyl group. The carbon number of the long-chain alkyl group is preferably 10 or more, 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 carbon number of the short-chain alkyl group is preferably 1 or more and preferably 4 or less, more preferably 1 or 2, and even more preferably 1, i.e., a methyl group. Examples of alkylamine salts include alkylamine salts in which the long-chain alkyl group has the number of carbon atoms in the above range, such as long-chain monoalkyl monomethyl secondary amine salts and long-chain monoalkyl dimethyl tertiary amine salts. Examples of quaternary ammonium salts include long-chain alkyl tri-short-chain alkyl quaternary ammonium salts, di-long-chain alkyl di-short-chain alkyl quaternary ammonium salts, and long-chain alkyl benzyl di-short-chain alkyl quaternary ammonium salts, each of which has a long-chain alkyl group and a short-chain alkyl group within the above-mentioned range of carbon numbers.

[0021] Examples of alkylamine salts include alkylamine acetates such as lauryl dimethylamine acetate and stearyl dimethylamine 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. Of these, 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.

[0022] In step 1, other emulsifiers may be contained in addition to the cationic surfactant, provided that the effects of the present invention are not impaired. Examples of other emulsifiers include polymer dispersants, nonionic surfactants, anionic surfactants, and amphoteric surfactants.

[0023] 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 dispersion stability of the emulsified droplets, and is preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 2% by mass or less, 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.

[0024] The amount of oil phase components relative to the total amount of the emulsion obtained in step 1 is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 15% by mass or more, from the viewpoint of production efficiency, and is preferably 50% by mass or less, more preferably 45% by mass or less, and even more preferably 40% by mass or less, from the viewpoint of obtaining a stable emulsion.

[0025] 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 composition in step 1, from the viewpoint of accelerating the sol-gel reaction and forming a sufficiently dense shell, and is 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 preventing excess tetraalkoxysilane from remaining in the fragrance composition.

[0026] Step 1 preferably includes the following steps 1-1 to 1-4. Step 1-1: Step of preparing an aqueous phase component containing a cationic surfactant Step 1-2: A step of mixing a fragrance composition containing an alcohol-based fragrance compound with a tetraalkoxysilane to prepare an oil phase component Step 1-3: A step of mixing and emulsifying the aqueous phase component obtained in Step 1-1 and the oil phase component obtained in Step 1-2 to obtain an emulsion. Step 1-4: A step of subjecting the emulsion obtained in Step 1-3 to a first-stage sol-gel reaction to form silica capsules having a core and a first shell composed of silica.

[0027] The stirring means used in preparing the emulsion is not particularly limited, and may be a homogenizer, high-pressure disperser, ultrasonic disperser, etc., which have a strong shearing force. Also, a homomixer, such as "Disper" (trade name, manufactured by Primix Corporation), "Clearmix" (trade name, manufactured by M Technique Co., Ltd.), or "Cavitron" (trade name, manufactured by Pacific Machinery Works, Ltd.) may be used.

[0028] Median diameter D of the emulsion droplets in the emulsion of step 1 50 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 reducing the specific surface area relative to the environment outside the silica capsule and improving long-term storage stability, and 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, from the viewpoint of the physical strength of the silica capsule. Median diameter of emulsion droplets D 50 can be measured by the method described in the Examples.

[0029] 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 reaction and condensation reaction of the tetraalkoxysilane, and from the viewpoint of suppressing the formation of a highly hydrophilic sol and promoting the progress of encapsulation. The initial pH is preferably 4.5 or lower, more preferably 4.3 or lower, and even more preferably 4.1 or lower, from the viewpoint of suppressing the simultaneous formation of a silica shell and the aggregation of emulsified droplets and obtaining silica capsules with a dense shell.

[0030] Depending on the strength of acidity or alkalinity of the oil phase components including the fragrance composition, any acidic or alkaline pH adjuster may be used to adjust the initial pH to a desired level. The pH of the emulsion may fall below the desired value, in which case it is preferable to adjust it using an alkaline pH adjuster, which will be described later. That is, step 1-4 may preferably be the following step 1-4'. Step 1-4': A step of adjusting the pH of the emulsion obtained in Step 1-3 using a pH adjuster, carrying out a first-stage sol-gel reaction to form silica capsules (1) having a core and a first shell, and obtaining an aqueous dispersion containing the silica capsules (1).

[0031] Examples of acidic pH adjusters include inorganic acids such as hydrochloric acid, nitric acid, and sulfuric acid, organic acids such as acetic acid and citric acid, and solutions of cation exchange resins added to water or ethanol, among which hydrochloric acid, sulfuric acid, nitric acid, and citric acid are 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.

[0032] The reaction temperature of the sol-gel reaction in step 1 can be any value that is equal to or higher than the melting point and equal to or lower than the boiling point of water contained as the aqueous phase, but 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 set the temperature within a certain range, 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.

[0033] [Process 2] Step 2 is a step in which tetraalkoxysilane is further added to the aqueous dispersion containing the silica capsules (1) obtained in step 1 to carry out a sol-gel reaction, thereby forming silica capsules having a second shell that encapsulates the first shell.

[0034] 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 composition in step 1, from the viewpoint of forming a second shell that encapsulates the first shell, and is 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 that disperses in the aqueous phase and improving the dispersion stability of the silica capsules.

[0035] In step 2, the tetraalkoxysilane to be added to the aqueous dispersion containing the silica capsules (1) obtained in step 1 may be added all at once, may be added intermittently in divided amounts, or may be added continuously. However, from the viewpoint of forming a highly dense second shell, it is preferable to add it dropwise continuously. When the tetraalkoxysilane is added dropwise continuously, the dropwise addition time can be set appropriately depending on the scale of production, but from the viewpoint of suppressing separation of the added tetraalkoxysilane from 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, even more preferably 500 minutes or less.

[0036] In the present invention, the total amount of tetraalkoxysilane added, i.e., the total amount of tetraalkoxysilane added in Step 1 and Step 2, is preferably 30% by mass or more, more preferably 35% by mass or more, even more preferably 40% by mass or more, and is preferably 250% by mass or less, more preferably 200% by mass or less, even more preferably 150% by mass or less, relative to the fragrance composition in Step 1. By keeping the total amount of tetraalkoxysilane added within the above range, the encapsulated fragrance composition can be preserved for a long period of time.

[0037] In the present invention, the total amount of the fragrance composition and tetraalkoxysilane in Step 1 relative to the total amount of the aqueous dispersion before the addition of the 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 shelf life of the fragrance composition, and is preferably 2% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more, from the viewpoint of production efficiency. The adjustment of the total amount of the fragrance composition and tetraalkoxysilane in Step 1 relative to the total amount of the aqueous dispersion before the addition of the tetraalkoxysilane in Step 2 may be performed by carrying out Step 1 so that the amounts of the fragrance composition and tetraalkoxysilane in Step 1 and the total amount of the aqueous dispersion obtained in Step 1 fall within the above-mentioned ranges, or may be performed by further adding water to the aqueous dispersion obtained in Step 1 to dilute it.

[0038] In the present invention, from the viewpoint of production efficiency, the aqueous dispersion obtained in Step 1 may be diluted with water before the addition of the tetraalkoxysilane in Step 2. The total amount of the fragrance composition and tetraalkoxysilane in 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, still more preferably 15% by mass or more, and is 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, more preferably 7 times or less.

[0039] The reaction temperature for the sol-gel reaction in step 2 can be selected arbitrarily as long as it is equal to or higher than the melting point and equal to or lower than the boiling point of water contained as the dispersion medium, but 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, the reaction temperature 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, 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.

[0040] In the present invention, in step 2, an organic polymer compound may be further added to the aqueous dispersion obtained in step 1 for the purpose of stabilizing the aqueous dispersion and suppressing aggregation. Here, the organic polymer compound means a compound having a weight-average molecular weight of 5,000 or more. Examples of the organic polymer compound include nonionic polymers, cationic polymers, and anionic polymers. The nonionic polymer refers to a water-soluble polymer that has no charge in water. By using a nonionic polymer, it is possible to impart a function to the silica capsule depending on the intended use of the silica capsule. When a nonionic polymer, cationic polymer, or anionic polymer is used as the organic polymer compound, for example, when the silica capsules of the present invention are used in a textile product treatment composition such as a softener composition, improved adsorption of the silica capsules to fibers can be expected. As used herein, the term "water-soluble polymer" refers to a polymer that, when dried at 105°C for 2 hours and allowed to reach a constant weight, dissolves in 100 g of water at 25°C in an amount of 1 mg or more.

[0041] Examples of nonionic polymers include polymers having structural units derived from nonionic monomers, water-soluble polysaccharides (cellulose-based, gum-based, starch-based, etc.) and derivatives thereof. Examples of nonionic monomers include (meth)acrylates having a hydrocarbon group derived from an aliphatic alcohol having 1 to 22 carbon atoms; styrene-based 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; alkoxypolyalkylene glycol mono(meth)acrylates such as methoxypolyethylene glycol mono(meth)acrylate and octoxypolyethylene glycol mono(meth)acrylate; (meth)acrylamide, etc. Note that "(meth)acrylate" refers to either acrylate or methacrylate. Similarly, "(meth)acrylic" refers to either acrylic or methacrylic. The nonionic polymer is preferably one or more selected from polyvinylpyrrolidone, copolymers of vinylpyrrolidone with other nonionic monomers such as vinylpyrrolidone / vinyl acetate copolymer, and cellulose polymers such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl methyl cellulose, and more preferably one or more selected from polyvinylpyrrolidone and hydroxypropyl cellulose.

[0042] Examples of cationic polymers include polymers containing quaternary ammonium salt groups, polymers having nitrogen-based cationic groups, polymers that can become cationic by adjusting the pH, etc. By using a cationic polymer, it is possible to alleviate the situation in which the silica capsules (1) obtained in step 1 tend to aggregate in the aqueous dispersion, and it is possible to suppress the generation of coarse particles, etc. in the subsequent step 2. Examples of cationic polymers include polydiallyldimethylammonium salts such as poly(diallyldimethylammonium chloride), poly(acrylic acid-co-diallyldimethylammonium chloride), poly(acrylamide-co-diallyldimethylammonium chloride), and poly(acrylamide-co-acrylic acid-co-diallyldimethylammonium chloride), as well as copolymers thereof; poly(2-(methacryloyloxy)ethyltrimethylammonium chloride), polyethyleneimine, polyallylamine, cationized cellulose, cationized guar gum, cationized tara gum, cationized fenugreek gum, and cationized locust bean gum. Among these, polydiallyldimethylammonium salts and copolymers thereof are preferred, with one or more selected from poly(diallyldimethylammonium chloride), poly(acrylic acid-co-diallyldimethylammonium chloride), and poly(acrylamide-co-acrylic acid-co-diallyldimethylammonium chloride) being more preferred, and poly(diallyldimethylammonium chloride) being even more preferred.

[0043] 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, more preferably 8 meq / g or less, from the viewpoints of dispersibility of the silica capsules (1), suppression of the generation of coarse particles, and improvement of long-term retention. The cationic polymer may contain anionic groups, and in that 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 the present invention, the cationic group equivalent of the cationic polymer is calculated based on the monomer composition.

[0044] Examples of anionic polymers include polymers containing monomer units having a carboxyl group, polymers containing monomer units having a sulfonic acid group, and polymers that become anionic upon pH adjustment. 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), carboxymethyl cellulose, etc. Note that (meth)acrylic acid means acrylic acid or methacrylic acid.

[0045] The amount of the organic polymer compound 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 is preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, relative to the amount of the aqueous dispersion obtained in step 1.

[0046] The silica capsules obtained in step 2 are dispersed in water. Depending on the application, they can be used as they are, but in some cases, the silica capsules are separated and used. Separation methods such as filtration and centrifugation can be used.

[0047] <Core> The core of the silica capsule according to the present invention contains a fragrance composition comprising an alcohol-based fragrance compound. The fragrance composition of the present invention contains an alcohol-based fragrance compound from the viewpoint of the freshness of the fragrance that is released when the fabric is moistened with moisture such as sweat.

[0048] The alcohol-based fragrance compounds of the present invention also include fragrance compounds with a phenol structure. In some cases, alcohol-based fragrance compounds are divided into alcoholic fragrance compounds and phenolic fragrance compounds. Examples of alcohol-based fragrance compounds that can be used include fragrances described in "Fundamentals of Fragrance and Fragrance Blending," edited by Nakajima Mototaka, published by Sangyo Tosho Co., Ltd., April 20, 2005, 4th edition.

[0049] Specific examples of alcohol-based fragrance compounds include geraniol, nerol, citronellol, linalool, ethyl linalool, tetrahydrolinalool, terpineol, cis-3-hexenol, 1,8-cineole, borneol, 4-isopropylcyclohexanol (Follogia), mayol [4-isopropylcyclohexanemethanol], raspberry ketone, cinnamic alcohol, 2-phenylethyl alcohol, phenylhexanol, 4-methyl-3-decen-5-ol (undecavertol), 2-isobutyl-4-hydroxy-4-methyltetrahydropyranol (Florosa), amber core [1-(2-tert-butylcyclohexyloxy)-2-butanol], trans-2-hexenol, 2-ethyl-4-(2,2,3- Trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol (vacdanol), 2-methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol (sandalmysole core), 3,7,11-trimethyl-2,6,10-dodecatrien-1-ol (farnesol), 2-methyl-5-(2,3-dimethyltricyclo[2.2.1.02,6]hept-3-yl-2-penten-1-ol (santalol), eugenol, isoeugenol, indole, maltol, ethyl maltol, 4-hydroxy-3-methoxybenzaldehyde (vanillin), 3-ethoxy-4-hydroxybenzaldehyde (ethyl vanillin), thymol, carvacrol, and 3-methyl-4-isopropylphenol.

[0050] In the present invention, the alcohol-based fragrance compound is preferably an alcohol-based fragrance compound having a logP of 1.0 or more and 5.0 or less, more preferably 1.2 or more, even more preferably 1.5 or more, and preferably 4.8 or less, more preferably 4.5 or less.

[0051] In the present invention, the logP value is a coefficient indicating 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 a compound in a solvent consisting of two liquid phases, 1-octanol and water, when a trace amount of the compound dissolves as a solute in each solvent and reaches partition equilibrium. It is generally expressed in the form of their logarithm logP to the base 10. Nowadays, the value of "calculated logP (sometimes referred to as ClogP)" is widely used, calculated by a calculation program using fragment values of atomic groups determined by the number of atoms constituting the compound molecule and the type of chemical bond. In the present invention, the ClogP value is also used when selecting compounds.

[0052] In the present invention, the ClogP value is calculated using software EPI Suite (registered trademark: The Estimations Programs Interface for Windows version 4.11) jointly developed by the US Environmental Protection Agency and Syracuse.

[0053] Specific examples of alcohol-based fragrance compounds include those having a logP value within the above range, and more specifically, the following alcohol-based fragrance compounds can be mentioned. The numbers in parentheses are logP values (hereinafter, the same may be used).

[0054] Alcohol-based fragrance compounds include geraniol (3.5), citronellol (3.6), cis-3-hexenol (1.6), phenylhexanol (3.5), ethyl linalool (3.9), 2-phenylethyl alcohol (1.6), linalool (3.0), terpineol (3.3), 2-methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol (Sandalmysore core) (4.7), 2-isobutyl 4-hydroxy-4-methyltetrahydropyranol (Florosa) (2.0), eugenol (2.7), raspberry ketone (1.5), amber core [1-(2-tert-butylcyclohexyloxy)2-butanol] (4.1), and mayol [4-isopropylcyclohexanemethanol] (3.5). Preferably, the fragrance composition contains an alcohol-based fragrance compound selected from the group consisting of geraniol (3.5), cis-3-hexenol (1.6), ethyl linalool (3.9), 2-phenylethyl alcohol (1.6), terpineol (3.3), 2-methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol (Sandalmysore core) (4.7), 2-isobutyl-4-hydroxy-4-methyltetrahydropyranol (Florosa) (2.0), eugenol (2.7), Amber core [1-(2-tert-butylcyclohexyloxy)2-butanol] (4.1), Mayol [4-isopropylcyclohexanemethanol] (3.5), and citronellol (3.6).

[0055] From the viewpoint of the release of fragrance when the fiber is wetted with moisture such as sweat, the fragrance composition of the core of component (a) preferably contains 25% by mass or more of fragrance compounds having a logP of 2.0 or more and 5.0 or less and a vapor pressure at 25°C of 0.01 or more and 8.00 or less.

[0056] In the present invention, the vapor pressure at 25°C is determined by an actual measurement or by estimating the vapor pressure from the boiling point, or, if the chemical is solid at room temperature, by estimating the vapor pressure from the melting point. Vapor pressure can be estimated by several known methods (such as the Antoine method, the Modified Grain method, and the Mackay method). In the present invention, the vapor pressure is calculated using MPBPWIN, which is included in the EPI suite available from the U.S. Environmental Protection Agency (EPA). If the average of the values calculated by the Antoine method and the Grain method is displayed in the calculation results as the "Selected VP," the average value is used. If no "Selected VP" is displayed, the value calculated by the Modified Grain method is used.

[0057] Examples of fragrance compounds having a log P of 2.0 or more and 5.0 or less and a vapor pressure at 25°C of 0.01 or more and 8.00 or less include γ-undecalactone, 2-cyclohexylidene-2-phenylacetonitrile, damascenone, δ-damascone, α-methyl-β-(pt-butylphenyl)-propionaldehyde, β-ionone, myrrhaldehyde, ethyltricyclo[5.2.1.0-2,6) Decane-2-carboxylate (flute), citronellol, geraniol, α-ionone, patchouli alcohol, 6,7-dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone, methyl dihydrojasmonate, hexyl cinnamic aldehyde, amyl cinnamic aldehyde, allyl cyclohexyl propionate, dimethylbenzylcarbinyl butyrate, tricyclodecenyl propionate, amyl salicylate, γ-methyl ionone, α-damascenoic acid β-damascone, nerolin yarayara, 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-naphthyl ketone, eugenol, lyral, dimethylbenzylcarbinyl acetate, iso-damascone, 2-cyclohexylidene-2-phenyl Nylacetonitrile, γ-decalactone, α-methyl-3,4-methylenedioxyhydrocinnamic aldehyde, 7-methyl-3,5-dihydro-2H-benzodioxepinone, tricyclodecenyl acetate (tricyclodecenyl acetate), tricyclodecenyl propionate, allyl 2-pentyloxyglycolate, 1-(2-tert-butylcyclohexyloxy)-2-butanol, citronellyloxyacetaldehyde, indole, 4-methyl-3-decen-5-ol, paprika Lamenthan-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, cis-jasmone, bicyclo[3.2.1) Octan-8-one-1,5-dimethyl-oxime, 2,4-dimethyl-4,4α,5,9β-tetrahydroindeno[1,2-d]-m-dioxine, 3-(para-ethylphenyl)-2,2-dimethylpropanal, ethyl-2-tert-butylcyclohexyl-carbonate, hexyl benzoate, 4-acetoxy-3-amyltetrahydropyran, dodecyl aldehyde, dihydro-β-ionone, methyl cyclooctyl carbonate, methylphenyl These include ethyl glycidate, isoeugenol, methyl isoeugenol, diphenyl oxide, 2,2,5-trimethyl-5-pentyl cyclopentanone, thymol, nerolin bromeliad, 5,6-dimethyl-8-isopropenyl, bicyclo[4,4,0]-1-decen-3-one, 3-(4-isopropylphenyl)-propanal, 4-isopropylcyclohexanemethanol, methyl methylanthranilate, and dodecanenitrile-3-dodecenal.

[0058] Furthermore, fragrance compounds with a logP value of less than 2.0 can also be used as the fragrance compound of component (a). Examples of fragrance compounds with a logP value of less than 2.0 include coumarin (1.5), phenylethyl alcohol (1.6), cis-3-hexenol (1.6), raspberry ketone (1.5), and heliotropin (1.8). The numbers in parentheses are logP values.

[0059] Furthermore, fragrance compounds with a logP value of greater than 5.0 can also be used as the fragrance compound of component (a). Examples of fragrance compounds with a logP value greater 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), benzyl alcohol (7.1), and caryophyllene (6.3). The numbers in parentheses are logP values.

[0060] Furthermore, as the fragrance compound of component (a), a fragrance compound with a vapor pressure of less than 0.01 Pa can also be used. Examples of fragrance compounds with a vapor pressure of less than 0.01 Pa include 1,4-dioxacycloheptadecane-5,17-dione (0.0000585) and ethylene brassylate (0.0000585). The numbers in parentheses indicate vapor pressure.

[0061] The fragrance compound of component (a) may also be a fragrance compound with a vapor pressure of greater than 8.00 Pa. Examples of fragrance compounds with a vapor pressure of greater 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), triplal (46.9), and styrallyl acetate (14.9). The numbers in parentheses are vapor pressures.

[0062] The fragrance composition containing component (a) contains, for example, 5% by mass or more, further 8% by mass or more, further 10% by mass or more, and 80% by mass or less, further 75% by mass or less, further 70% by mass or less of an alcohol-based fragrance compound.

[0063] The microcapsules of component (a) may contain one or more diluents, solvents, and solidifying agents in addition to the fragrance composition. Examples of diluents and 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.

[0064] [Silica capsule] The silica capsules of the present invention, for example, the silica capsules produced as described above, are attached to a textile product in an aqueous medium and then break down at the end of the process as water evaporates from the textile product, allowing the encapsulated material to penetrate into the textile product.

[0065] The silica capsule of the present invention is preferably a silica capsule having a core containing the fragrance composition, a first shell encapsulating the core, and a second shell encapsulating the first shell, from the viewpoint of stably retaining the contents within the textile product treatment composition and breaking down upon drying after being attached to a textile product in an aqueous medium. The first shell of the silica capsule of the present invention encapsulates the core, contains silica as a constituent component, and preferably has an average thickness of 5 nm or more and 20 nm or less, and the second shell encapsulates the first shell, contains silica as a constituent component, and preferably has an average thickness of 10 nm or more and 100 nm or less. The average thickness of the first and second shells of the silica capsules can be measured by observation with a transmission electron microscope (TEM). Specifically, the thickness of the first and second shells is measured on a photograph under a transmission electron microscope. This operation is performed with the field of view changed five times. The distribution of the average thickness of the first and second shells is determined from the obtained data. The magnification of the transmission electron microscope is generally between 10,000 and 100,000 times, but is adjusted appropriately depending on the size of the silica capsules. Here, a transmission electron microscope (TEM) such as the "JEM-2100" (manufactured by JEOL Ltd.) can be used.

[0066] The median diameter D of the silica capsule according to the present invention 50 From the viewpoint of improving the long-term storage property and improving the dispersion stability of the silica capsules, 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, and from the viewpoint of improving the physical strength and long-term storage property of the silica capsules, 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 can be measured by the method described in the Examples.

[0067] The silica capsules according to the present invention are preferably blended as a silica capsule slurry when preparing a textile product treatment composition. From the viewpoint of improving the dispersibility of the silica capsule slurry in the components mixed when preparing the textile product treatment composition, a surfactant selected from a cationic surfactant, a nonionic surfactant, and an anionic surfactant may be added to the silica capsule slurry.

[0068] The silica capsules of component (a) may be partially aggregated to the extent that the fragrance is not impaired.

[0069] The textile product treatment composition of the present invention contains component (a) in an amount of preferably 0.05% by mass or more, more preferably 0.07% by mass or more, even more preferably 0.1% by mass or more, and preferably 1.0% by mass or less, more preferably 0.7% by mass or less, even more preferably 0.5% by mass or less, as a fragrance composition contained in component (a).

[0070] <(b) Component> The component (b) is one or more compounds selected from the amine compounds represented by the general formula (b1) and acid salts thereof. In general formula (b1), R 1b is preferably an alkyl group having 15 or more carbon atoms and 17 or less carbon atoms, more preferably a group selected from a linear alkyl group having 15 carbon atoms and a linear alkyl group having 17 carbon atoms. In general formula (1), R 2b is preferably an ethylene group or a propylene group, more preferably a propylene group. In general formula (1), R 3b , R 4b are each independently preferably a methyl group or an ethyl group, more preferably a methyl group.

[0071] The acid salt of the amine compound represented by the general formula (b1) may be an inorganic acid or an organic acid, i.e., a salt with an inorganic acid or an organic acid. Inorganic acids include hydrochloric acid and sulfuric acid. Examples of organic acids include alkyl sulfuric acids having from 1 to 3 carbon atoms, mono- or polycarboxylic acids having from 1 to 10 carbon atoms, and mono- or polysulfonic acids having from 1 to 20 carbon atoms. Specific examples of organic acids include methyl sulfuric acid, ethyl sulfuric acid, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, citric acid, benzoic acid, and salicylic acid. The acid salt of the amine compound represented by the general formula (1) is preferably a hydrochloride or a monovalent or polyvalent carboxylate having from 1 to 10 carbon atoms, more preferably a hydrochloride or a citrate, and even more preferably a hydrochloride from the viewpoint of the fragrance release of the textile product treatment composition of the present invention after long-term storage. The amine compound represented by the general formula (b1) may be converted into an acid salt in the composition by an acidifying agent of the component (j) described below.

[0072] Specifically, the component (b) is preferably one or more amine compounds selected from palmitoylaminopropyldimethylamine and stearoylaminopropyldimethylamine.

[0073] The inventors have found that component (b) moderately suppresses the evaporation of alcohol-based fragrance compounds encapsulated in microcapsules of component (a) from textile products. Furthermore, component (b) exhibits excellent evaporation suppression effects even when the alcohol-based fragrance compound is highly hydrophilic. For example, even for alcohol-based fragrance compounds with a LogP of less than 3.0, the difference in fragrance lingering between the presence and absence of component (b) is clear.

[0074] The textile product treatment composition of the present invention contains component (b) in an amount of preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and preferably 5.0% by mass or less, more preferably 4.0% by mass or less, even more preferably 3.0% by mass or less.

[0075] In the textile treatment composition of the present invention, the mass ratio of component (b) to component (a) [component (b) / component (a)] is preferably 50 / 50 or more and preferably 99 / 1 or less.

[0076] <Components that may be contained in the textile product treatment composition of the present invention> The textile product treatment composition of the present invention may further contain the following components.

[0077] <(c) component> The textile product treatment composition of the present invention may contain the following component (c): Component (c): one or more compounds selected from the following components (c1) and (c2): Component (c1): one or more compounds selected from tertiary amine compounds represented by the following general formula (C1) and acid salts thereof: Component (c2): one or more compounds selected from quaternized tertiary amine compounds represented by the following general formula (C1): [R 1c -C(=O)-O-(C p H 2p O) r -C q H 2q 〕 m N(R 2c ) 3-m (C1) [In the formula, R 1c is a hydrocarbon group having 11 to 23 carbon atoms, and R 2c is a hydrocarbon group having 1 to 3 carbon atoms and HO-(C p H 2p O) r -C q H 2q m is a number of 1 or more and 3 or less, p and q are each independently a number of 2 or 3, and r is a number of 0 or more and 5 or less. 1c , R 2c When there are a plurality of p, q, and r, they may be the same or different.

[0078] [(c1) component] The component (c1) in the present invention is one or more compounds selected from the tertiary amine compounds represented by the general formula (C1) above and acid salts thereof.

[0079] R in general formula (C1) 1c R is a hydrocarbon group having 11 to 23 carbon atoms, and from the viewpoint of softening textile products, an acyclic hydrocarbon group having 13 to 21 carbon atoms is preferred. 1c Specific examples of the hydrocarbon group include linear or branched alkyl and alkenyl groups, with linear alkyl and alkenyl groups being more preferred. R 1c More specific examples of the alkyl group include a linear or branched alkyl group having 13 to 21 carbon atoms and a linear or branched alkenyl group having 13 to 21 carbon atoms, and include groups selected from linear alkyl groups having 13 to 21 carbon atoms and linear alkenyl groups having 13 to 21 carbon atoms.

[0080] When an emulsion-type composition is desired, R 1c is preferably a group selected from an alkyl group having 11 to 23 carbon atoms and an alkenyl group having 11 to 23 carbon atoms, and more preferably a group selected from an alkyl group having 13 to 21 carbon atoms and an alkenyl group having 13 to 21 carbon atoms. The component (c1) in the present invention is R in the general formula (C1). 1c Preferably, R is a mixture of compounds having different substituents. 1c However, it is more preferable that the compound is a mixture of a compound having an alkyl group and a compound having an alkenyl group. R 1c is an alkyl group and R 1c The ratio of the alkyl group to the compound having an alkenyl group can be determined by the composition of the fatty acid or fatty acid ester used as the raw material. The amount of alkyl group and the amount of alkenyl group can be adjusted by hydrogenation of the raw material having an alkenyl group, or by 1c This can be achieved by hydrogenation of a compound in which is an alkenyl group.

[0081] The unsaturated group contained in the alkenyl group exists in a cis form and a trans form. The molar ratio of the cis form to the trans form [cis form / trans form] is preferably 30 / 70 or more and 99 / 1 or less, and from the viewpoint of the availability of the alkenyl group, more preferably 50 / 50 or more and 97 / 3 or less. In the present invention, the ratio of the cis form to the trans form is 1 It can be calculated from the integral ratio of H-NMR.

[0082] In general formula (C1), p and q are each the number 2 or 3. From the viewpoint of the absorbency retention of the treated cloth, p is preferably 2. From the viewpoint of ease of production of component (c1), q is preferably 2. In general formula (C1), r is preferably a number of 0 or more and 2 or less, more preferably 0, from the viewpoint of softening the textile product. R 2c From the viewpoint of water absorption, HO-(C p H 2p O) r -C q H 2q The group, more preferably the HO-C2H4 group. From the viewpoint of water absorption, m is preferably 1 or more and 2 or less.

[0083] As described above, the component (c1) in the present invention is one or more compounds selected from the tertiary amine compounds represented by the general formula (C1) and their acid salts. Depending on the pH of the textile product treatment composition of the present invention, almost all of the component (c1) may be present in the textile product treatment composition in the form of an acid salt. When the tertiary amine compound constituting the component (c1) exists as an acid salt, the acid may be an inorganic acid or an organic acid. Inorganic acids include hydrochloric acid and sulfuric acid. Examples of organic acids include alkyl sulfuric acids having from 1 to 3 carbon atoms, mono- or polycarboxylic acids having from 1 to 10 carbon atoms, and mono- or polysulfonic acids having from 1 to 20 carbon atoms. Specific examples of organic acids include methyl sulfuric acid, ethyl sulfuric acid, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, citric acid, benzoic acid, and salicylic acid.

[0084] The method for producing the amine compound represented by general formula (C1), which is component (c1), is not particularly limited. For example, it can be obtained by an esterification reaction between an alkanolamine compound represented by the following general formula (c1-1) and a fatty acid, or a transesterification reaction between an alkanolamine compound represented by general formula (c1-1) and a fatty acid ester. As the fatty acid, fatty acids derived from palm kernel oil, coconut oil, beef tallow, rapeseed oil, or sunflower oil can be used, and the fatty acid ratio may be adjusted, or fatty acids of different origins may be used in combination. 〔HO-(C p H 2p O) r -C q H 2q 〕 n N(R 3c ) 3-n (c1-1) [In the formula, R 3c represents a group selected from hydrocarbon groups having 1 to 3 carbon atoms, n represents a number of 1 to 3, and p, q, and r have the same meanings as in general formula (C1).

[0085] As an example of the esterification reaction, for example, the method described on pages 8 and 9 of JP-A No. 2000-510171 can be applied. As an example of the transesterification reaction, the method described in paragraphs

[0013] to

[0016] of JP-A-7-138211 can be applied.

[0086] [(c2) component] The component (c2) in the present invention is one or more compounds selected from quaternized products of the tertiary amine compound represented by the general formula (C1), and can be obtained by a quaternization reaction using a tertiary amine compound represented by the general formula (C1) and an alkylating agent.

[0087] Examples of alkylating agents include dimethyl sulfate, diethyl sulfate, methyl chloride, methyl bromide, and methyl iodide, and among these, one or more selected from methyl chloride, dimethyl sulfate, and diethyl sulfate are preferred. That is, the component (c2) in the present invention is preferably a quaternized product obtained by quaternizing a tertiary amine compound represented by general formula (C1) with one or more alkylating agents selected from methyl chloride, dimethyl sulfate, and diethyl sulfate. As the quaternization reaction, for example, the method described in paragraphs

[0017] to

[0023] of JP-A No. 7-138211 and the production method described in JP-A No. 11-106366 can be applied.

[0088] Component (c) may be one type of compound or a mixture of two or more types of compounds. When component (c) is a mixture of two or more compounds, m is preferably 1.2 or more and 2.5 or less. From the viewpoint of softening textile products, m is preferably 1.3 or more, more preferably 1.4 or more, and preferably 2.0 or less, more preferably 1.9 or less.

[0089] In order to obtain a mixture satisfying the above-mentioned condition, the compound of general formula (2-1) used as the raw material may be a mixture of compounds with different structures. It is also preferable to react a compound of general formula (2-1) in which n is 3 with a fatty acid or a fatty acid ester to obtain a mixture in which m is within the above-mentioned range.

[0090] [Mass ratio of component (c1) to component (c2)] The component (c) in the present invention can contain both the component (c1) and the component (c2). In this case, the mass ratio of the component (c1) to the component (c2) [component (c1) / component (c2)] is preferably 1 / 99 or more, and preferably 40 / 60 or less, more preferably 35 / 65 or less. The ratio of the components (c1) and (c2) in the mixture can be determined from the amine value in the mixture.

[0091] [Preferred component (c) in the present invention] In the present invention, it is preferable to use component (c) obtained, for example, as follows. That is, as the compound represented by general formula (C1), methyldiethanolamine [in the general formula (c1-1), R 3c is a methyl group, and n=2, q=2, and r=0], and triethanolamine (a compound represented by the general formula (c1-1) above, where n=3, q=2, and r=0), and subjecting this alkanolamine (c0-1) to an esterification reaction with a fatty acid (c0-2) having from 12 to 24 carbon atoms or a lower alkyl ester thereof such that the molar ratio [number of moles of hydroxyl groups in (c0-1) / number of moles of (c0-2)] is from 1 / 1 to 1 / 0.5 to obtain a tertiary amine compound (c1), which is then subjected to a quaternization reaction with an alkylating agent selected from methyl chloride, dimethyl sulfate, and diethyl sulfate. The alkanolamine (c0-1) is preferably triethanolamine, and the alkyl group of the lower alkyl ester in (c0-2) is preferably an alkyl group having 1 to 3 carbon atoms, more preferably a methyl group. Furthermore, the alkylating agent used for quaternization is preferably dimethyl sulfate. The mass ratio of component (c1) to component (c2) in component (c) obtained by the above-mentioned method [component (c1) / component (c2)] is preferably 3 / 97 or more, more preferably 5 / 95 or more, and is preferably 40 / 60 or less, more preferably 35 / 65 or less, from the viewpoint of economical production efficiency of component (c), and from the viewpoint of obtaining the effects of the present invention and sufficient flexibility. Furthermore, in component (c) obtained by the above-mentioned method, the total of components (c1) and (c2) preferably accounts for 90 mass% or more of the solid content.

[0092] During synthesis, component (c) can be obtained as a mixture containing impurities such as unreacted fatty acids, unreacted alkanolamines, fatty acid methyl esters, and their quaternized products. However, the amount of impurities can be reduced by devising a production method, and from the standpoint of production costs, it is not necessary to remove these impurities as long as the effects of the present invention and the softening effect are not impaired.

[0093] Furthermore, as the component (c), a mixture containing a compound in which m is 1 in general formula (C1), a compound in which m is 2, and a compound in which m is 3 may be used. The molar ratio in the mixture [(compound where m=1) / (total of compound where m=1, compound where m=2, and compound where m=3)] is preferably 10 / 100 or more and 40 / 100 or less from the viewpoint of softening effect. Furthermore, the molar ratio in the mixture [(compound where m=2) / (total of compound where m=1, compound where m=2, and compound where m=3)] is preferably 30 / 100 or more and 90 / 100 or less from the viewpoint of softening effect. Furthermore, the molar ratio in the mixture [(compound where m=3) / (total of compound where m=1, compound where m=2, and compound where m=3)] is preferably 5 / 100 or more and 40 / 100 or less from the viewpoint of softening effect. Here, the compounds in which m is 1, the compounds in which m is 2, and the compounds in which m is 3 in the general formula (C1) may each include an acid salt and / or a quaternary compound. From the viewpoint of softening effect, the component (c) in the present invention preferably satisfies two or more molar ratios selected from the above three molar ratios.

[0094] When the textile product treatment composition of the present invention contains component (c), its content in the composition is preferably 3.0 mass% or more, more preferably 4.0 mass% or more, even more preferably 5.0 mass% or more, and preferably 25 mass% or less, more preferably 22 mass% or less, even more preferably 20 mass% or less.

[0095] <(d) component> The textile product treatment composition of the present invention may contain, as component (d), a fragrance compound other than the alcohol-based fragrance compound encapsulated in component (a). In the present invention, even if the fragrance compound is an alcohol-based fragrance compound, a fragrance compound that is not encapsulated in a microcapsule is treated as component (d).

[0096] There are no particular restrictions on the fragrance compound that can be used as component (d), and the same fragrance compound as the fragrance compound released from component (a) may be used. Component (d) can be blended into the textile product treatment composition of the present invention as a fragrance composition containing multiple fragrance compounds. Fragrance compounds that can be used as component (d) include, for example, fragrances described in "Fundamentals of Fragrances and Fragrance Blending, edited by Nakajima Mototaka, published by Sangyo Tosho Co., Ltd., 4th printing, April 20, 2005" and fragrance compounds known to be incorporated into fabric softeners and the like through patent documents, as well as fragrance components prepared independently by fragrance manufacturers or blended fragrance compositions themselves.

[0097] Examples of component (d) 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 brassylate (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), dimethylbenzylcarbinyl acetate (3.4), sandalmysole core (4.7), dihydrojasmine (4.8), and methylparaben (4.8). Examples of methyl sucralose (3.5), dihydromyrcenol (3.5), dimethyltetrahydrobenzaldehyde (2.9), Javanol (Givaudan) (4.7), Neroline Yara Yara (3.3), Habanolide (Firmenich) (4.9), Flute (Kao Corporation) (3.6), Paeonil (Givaudan) (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.

[0098] The textile treatment composition of the present invention may contain a diluent or a fixative for the fragrance compound, such as dipropylene glycol, palmitic acid isopropyl ester, diethyl phthalate, benzyl benzoate, liquid paraffin, isoparaffin, and oils and fats. When a diluent and a retaining agent are used, the amount of the diluent and the retaining agent relative to the total amount of component (d), the diluent and the retaining agent is preferably 0% by mass or more and 20% by mass or less. Note that these diluents and retaining agents can also be used for the fragrance compound encapsulated in the microcapsules of component (a).

[0099] The use of component (d) in combination with component (a) allows for greater flexibility in fragrance design than ever before. Therefore, when a textile product is treated with the textile product treatment composition of the present invention in combination with component (d), it is possible to impart, for example, a fresh and rich fragrance.

[0100] When the textile product treatment composition of the present invention contains component (d), its content in the composition 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, and from the viewpoint of the storage stability of the textile product treatment composition (hereinafter also referred to as storage stability) and the balance of scent 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 composition can be adjusted depending on the product.

[0101] Furthermore, when the textile product treatment composition of the present invention contains component (d), the total content of components (a) and (d) in the composition 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 sufficient fragrance of textile products, and is 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 a balance of scent with other fragrance components.

[0102] <(e) component> The textile product treatment 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 from 8 to 24 carbon atoms and polyoxyalkylene alkenyl ethers having an alkenyl group with from 8 to 24 carbon atoms.

[0103] The component (e) is preferably at least one selected from nonionic surfactants represented by the following general formula (e1). R 1e -A-〔(R 2e O) p1 -R3e 〕 q1 (e1) [In the formula, R 1e is an alkyl or alkenyl group having 8 or more, preferably 10 or more, and 24 or less, preferably 18 or less, more preferably 16 or less carbon atoms; R 2e is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group, and R 3e is an alkyl group having 1 to 3 carbon atoms or a hydrogen atom, p1 is a number of 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 either 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.

[0104] Specific examples of the compound of general formula (e1) include compounds represented by the following formulae (e1-1) to (e1-4). R 1e -O-(C2H4O) p11 -H (e1-1) [In the formula, R 1e has the same meaning as above. 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 has the same meaning as above. 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 a random or block adduct. R 1e -O-(C2H4O) x1 -(C3H6O) y -(C2H4O) x2 -H (e1-3) [In the formula, R 1ehas the same meaning as above. x1, y, and x2 are the average number of moles added, x1 is 1 or more and 13 or less, y is 1 or more and 4 or less, and x2 is 1 or more and 13 or less, and (C2H4O), (C3H6O), and (C2H4O) are block adducts.]

[0105] [ka]

[0106] [In the formula, R 1e has the same meaning as above. B is -N< or -CON<, u and v are each independently a number of 0 to 40, and u+v is a number of 5 to 60, preferably 40 or less. R 4e , R 5e are each independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.

[0107] When the textile product treatment composition of the present invention contains component (e), its content in the composition is preferably 1.0 mass% or more, more preferably 1.5 mass% or more, even more preferably 2.0 mass% or more, and preferably 5.0 mass% or less, more preferably 4.5 mass% or less, even more preferably 4.0 mass% or less.

[0108] <Component (f)> The textile product treatment composition of the present invention may contain an inorganic salt as component (f) from the viewpoint of improving storage stability. As the inorganic salt, from the viewpoint of improving storage stability, one or more types selected from sodium chloride, calcium chloride, and magnesium chloride are preferred. When the textile product treatment composition of the present invention contains component (f), the content of the component (f) in the composition 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 composition, and is 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 composition.

[0109] <(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). The ester of a polyhydric alcohol and a fatty acid is preferably an ester compound of a polyhydric alcohol having 3 to 6 carbon atoms and 3 to 6 hydric, and a fatty acid having 12 to 22 carbon atoms. More specifically, it is an ester compound of a polyhydric alcohol having preferably 3 or more, more preferably 4 or more, and preferably 6 or less carbon atoms, and preferably having a valence of 3 or more, more preferably 4 or more, and preferably 6 or less, and a fatty acid having preferably 12 or more, more preferably 14 or more, even more preferably 16 or more, and preferably 22 or less, more preferably 20 or less carbon atoms. The polyhydric alcohol constituting component (g) is preferably at least one selected from glycerin, trimethylolethane, trimethylolpropane, 1,3,5-pentatriol, erythritol, arabitol, pentaerythritol, sorbitan, sorbitol, xylitol, and mannitol, and more preferably at least one 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 acid and hydrogenated palm oil fatty acid; and fatty acids derived from animal oils such as beef tallow fatty acid and hydrogenated beef tallow fatty acid; more preferably one or more selected from saturated fatty acids, fatty acids derived from vegetable oils, and fatty acids derived from animal oils; and even more preferably one or more selected from stearic acid, hydrogenated palm oil fatty acid, and hydrogenated beef tallow fatty acid. The component (g) in the present invention is preferably at least one selected from ester compounds of pentaerythritol and fatty acids having 16 to 22 carbon atoms (hereinafter also referred to as "pentaerythritol fatty acid esters"), and ester compounds of sorbitan and fatty acids having 16 to 22 carbon atoms (hereinafter also referred to as "sorbitan fatty acid esters").

[0110] When the textile product treatment composition of the present invention contains component (g), the content of component (g) in the composition is preferably 0.1 mass% or more, more preferably 0.3 mass% or more, even more preferably 0.5 mass% or more, still more preferably 0.7 mass% or more, and preferably 5.0 mass% or less, more preferably 4 mass% or less, even more preferably 3 mass% or less.

[0111] <(h) component> The textile treatment composition of the present invention may contain an amphoteric surfactant as component (h).

[0112] There are no particular limitations on the component (h) as long as it can generally be incorporated into liquid fabric softener compositions and the like, and examples include alkyl (having 12 to 22 carbon atoms) amidopropyl carbobetaine, alkyl (having 12 to 22 carbon atoms) amidopropyl sulfobetaine, alkyl (having 12 to 22 carbon atoms) carbobetaine, alkyl (having 12 to 22 carbon atoms) sulfobetaine, alkyl (having 10 to 18 carbon atoms) dimethylamine oxide, and the like.

[0113] When the textile product treatment composition of the present invention contains component (h), the content of component (h) in the composition 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 still more preferably 0.5% by mass or more, from the viewpoint of reducing the viscosity of the textile product treatment composition and improving its bactericidal properties, and is 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 preventing a decrease in storage stability and softening effect.

[0114] <Component (i)> The textile treatment composition of the present invention may contain a water-insoluble silicone compound as component (i). In this specification, the term "water-insoluble" for component (i) means that the amount of silicone compound that dissolves in 1 L of ion-exchanged water at 20°C is 1 g or less. Specific examples of component (i) 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.

[0115] Component (i) 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) preferably has a weight-average molecular weight of 1,000 or more, more preferably 3,000 or more, and even more preferably 5,000 or more, and preferably 1,000,000 or less. Component (i) preferably has a viscosity at 25°C of 2 mm or less. 2 / s or more, preferably 500 mm 2 / s or more, more preferably 1,000 mm 2 / s or more, and preferably 1 million mm 2 The weight average molecular weight of component (i) is a value measured by gel permeation chromatography using polystyrene as a standard substance.

[0116] The amino equivalent of the amino-modified dimethylpolysiloxane (amino equivalent is the molecular weight per nitrogen atom) 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, even more preferably 10,000 g / mol or less.

[0117] When the textile product treatment composition of the present invention contains component (i), the content of component (i) in the composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of imparting a refreshing feeling to the finished textile product, and is preferably 5% by mass or less, from the viewpoint of dispersibility. Furthermore, when the textile product treatment composition of the present invention contains component (i), the content of component (i) in the composition is, from the viewpoint of suppressing foaming, 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 is preferably 1.0% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less.

[0118] <(j) component> The textile product treatment composition of the present invention may contain an acidifying agent as component (j) from the viewpoint of adjusting the pH of the textile product treatment composition. Examples of the acid agent include inorganic acids and organic acids, and specific examples of inorganic acids include hydrochloric acid and sulfuric acid. Specific examples of organic acids include mono- or polycarboxylic acids having from 1 to 10 carbon atoms, mono- or polysulfonic acids having from 1 to 20 carbon atoms, and alkylsulfuric acids having from 1 to 3 carbon atoms. More specific examples include methylsulfuric acid, ethylsulfuric acid, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, ethylenediaminetetraacetic acid, citric acid, benzoic acid, and salicylic acid. Among these, an acidic agent selected from hydrochloric acid and a mono- or polycarboxylic acid having 1 to 10 carbon atoms is preferred, and an acidic agent selected from hydrochloric acid and citric acid is more preferred. When the textile product treatment composition of the present invention contains an acidic agent, the content thereof can be appropriately adjusted, and it is preferable that the content be an amount that brings the pH into the range described below, for example, and that does not impair storage stability.

[0119] <(k) component> The textile product treatment composition of the present invention may contain a fatty acid having 12 to 22 carbon atoms in order to improve the softening effect. The fatty acid of component (k) may be contained as an unreacted product during the synthesis of components (b) and (c), or as a decomposition product of components (b) and (c). As component (k), saturated or unsaturated fatty acids having 12 to 22 carbon atoms are preferred, and specific examples thereof include fatty acids selected from lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, erucic acid, and behenic acid, and fatty acids selected from palmitic acid, stearic acid, oleic acid, and linoleic acid are more preferred.

[0120] When the textile product treatment composition of the present invention contains component (k), the content of component (k) in the composition 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, even more preferably 0.1% by mass or less.

[0121] <(l) component> The textile product treatment composition of the present invention may contain a water-soluble organic solvent as component (1) from the viewpoint of storage stability and viscosity. Examples of the water-soluble organic solvent include those commonly used in textile treatment compositions. Note that the "water-soluble organic solvent" in component (l) refers to an organic solvent that dissolves 20 g or more in 100 g of deionized water at 20°C. Specific examples of the water-soluble organic solvent include propylene glycol, ethylene glycol, glycerin, diethylene glycol, monoethylene glycol monophenyl ether, diethylene glycol monophenyl ether, triethylene glycol monophenyl ether, isopropanol, ethanol, etc. Among these, water-soluble organic solvents selected from ethylene glycol, ethanol, and propylene glycol are preferred.

[0122] When the textile product treatment composition of the present invention is sufficiently stabilized by other components and has a low viscosity, it does not need to contain the water-soluble organic solvent, which is component (l). When the textile product treatment composition of the present invention contains component (l), the content of component (l) in the composition 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, even more preferably 1.0% by mass or more.

[0123] <(m) component> The textile product treatment composition of the present invention preferably contains 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. Note that component (m) in the present invention may also function as the acidifying agent.

[0124] Specific examples of chelating agents include ethane-1-hydroxy-1,1-diphosphonic acid, ethylenediaminetetraacetic acid, methylglycinediacetic acid, hydroxyethyliminodiacetic acid, ethylenediaminedisuccinic acid, L-glutamic acid-N,N-diacetic acid, N-2-hydroxyethyliminodiacetic acid, citric acid, succinic acid, and salts thereof. As the salt, alkali metal salts and ammonium salts are preferred, and sodium salts and potassium salts are more preferred.

[0125] When the textile product treatment composition of the present invention contains component (m), the content of component (m) in the composition 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, still more preferably 0.5% by mass or less, and still more preferably 0.1% by mass or less.

[0126] <(n) component> The textile treatment composition of the present invention may contain, as component (n), microcapsules other than component (a) that encapsulate a fragrance compound, or a fragrance precursor. The use of component (n) in combination with components (a) and (d) allows for greater freedom in fragrance design than ever before. For component (n), a silicate ester compound described in JP 2014-125685 A or an ester compound of an alcohol-based fragrance compound described in JP 8-502522 A with an aliphatic monocarboxylic acid or aliphatic dicarboxylic acid can be used as a sustained-release fragrance.

[0127] When the textile product treatment composition of the present invention contains component (n), the content of component (n) in the composition 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, even more preferably 0.55% by mass or less.

[0128] When the textile product treatment composition of the present invention contains component (n), the total content of components (a), (d) and (n) in the composition 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 adequately scenting textile products, and is 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 a balance between storage stability and the preference for fragrance strength.

[0129] The mass % of component (n) is calculated based on the mass of the fragrance compound encapsulated in the microcapsules of component (n) and the fragrance compound that constitutes the fragrance precursor of component (n).

[0130] <(o) component> In the textile product treatment composition of the present invention, an antioxidant such as butylhydroxytoluene (BHT) can be used to inhibit deterioration of the substrate. Furthermore, dyes and pigments commonly used in textile product treatment compositions can be used to enhance aesthetics and prevent 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.

[0131] As mentioned above, component (b) of the present invention is preferably a hydrochloride salt, but from the viewpoint of the storage stability of the textile product treatment composition, the content of organic acids or organic acid salts, for example, organic acids or organic acid salts incorporated as chelating agents, in the textile product treatment composition of the present invention is preferably 2.5% by mass or less, more preferably 1.5% by mass or less, and even more preferably 1.0% by mass or less, calculated as the acid form. Here, the organic acids or organic acid salts exclude the acids and fatty acids that are counter ions of component (b).

[0132] <Other ingredients> The textile product treatment composition of the present invention preferably contains water. It is preferably 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 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, more preferably 90% by mass or less of water.

[0133] The textile treatment composition of the present invention has a pH at 20° C. of preferably 2.0 or higher, more preferably 2.2 or higher, and preferably 4.0 or lower, more preferably 3.8 or lower.

[0134] The textile product treatment composition of the present invention is suitable for use on textile products, such as clothing, fabrics, bedding, and towels. The textile treatment composition of the present invention can be used for softening textile products. For example, the textile treatment composition of the present invention may be a textile softener composition, or even a liquid textile softener composition.

[0135] The textile product treatment composition of the present invention can be produced by mixing component (a), component (b), and water. The textile product treatment composition of the present invention can be produced, for example, by producing component (a) by a method including steps 1 and 2, and then mixing the resulting component (a) with component (b) and water. In these production methods, the above-mentioned optional components can be mixed as appropriate.

[0136] <Method of processing textile products> The present invention provides a method for treating textile products, which comprises contacting a treatment liquid obtained by mixing component (a), component (b), and water with the textile product. The components (a) and (b) used in the textile treatment method of the present invention can be the same as those described in the textile treatment composition of the present invention. Preferred aspects of the components (a) and (b) are also the same as those in the textile treatment composition of the present invention. The matters described in relation to the textile treatment composition of the present invention can be applied as appropriate to the textile treatment method of the present invention.

[0137] In the method for treating textile products of the present invention, the treatment liquid is preferably obtained by mixing the textile product treatment composition of the present invention with water.

[0138] The present invention provides a method for treating textile products, which comprises attaching a functional component to a wet textile product, drying the textile product, and allowing the functional component to penetrate into the fibers as the textile product dries, thereby obtaining a textile product that releases the functional component in the fibers upon contact with water after drying.

[0139] For example, the present invention provides a method for treating textile products, which includes attaching a fragrance compound to a wet textile product, drying the textile product, and allowing the fragrance compound to penetrate into the fibers as the textile product dries, thereby obtaining a textile product that releases the fragrance compound in the fibers upon contact with water after drying.

[0140] For example, the present invention provides a method for treating textile products, which comprises attaching to a wet textile product microcapsules (i.e., component (a) of the present invention) having a shell containing silica as a constituent component and a core containing a fragrance composition containing an alcohol-based fragrance compound inside the shell, drying the textile product, and allowing the alcohol-based fragrance compound to penetrate into the fibers as the textile product dries, wherein as the textile product dries, the shells of the microcapsules collapse, releasing the alcohol-based fragrance compound and allowing the alcohol-based fragrance compound to penetrate into the fibers, and the resulting textile product releases the alcohol-based fragrance compound in the fibers upon contact with water after drying.

[0141] For example, the present invention provides a method for treating textile products, which comprises attaching component (a) and one or more compounds selected from the amine compound represented by general formula (b1) and its acid salt (i.e., component (b) of the present invention) to a wet textile product, drying the textile product, and allowing an alcohol-based fragrance compound to penetrate into the fibers as the textile product dries, wherein as the textile product dries, the shells of the microcapsules collapse, releasing the alcohol-based fragrance compound and allowing the alcohol-based fragrance compound to penetrate into the fibers, and the resulting textile product releases the alcohol-based fragrance compound in the fibers upon contact with water after drying. [Example]

[0142] <Fragrance composition> As the fragrance composition to be encapsulated in the microcapsules, model fragrance A having the composition shown in Table 1 was used.

[0143] [Table 1]

[0144] <Component (a)> (a-1): Silica capsule (I) obtained in Synthesis Example 1 below

[0145] <Synthesis Example 1> Synthesis of (a-1) (Process 1) An aqueous phase component was obtained by diluting 1.51 g of Coatamine 60W (trade name, manufactured by Kao Corporation, cetyltrimethylammonium chloride, active ingredient 30% by mass) with 88.47 g of ion-exchanged water. To this aqueous phase component was added an oil phase component prepared by mixing 23.95 g of model fragrance A (volume average cLogP: 3.5, specific gravity: 0.95) in the formulation shown in Table 1 above with 6 g of tetraethoxysilane (hereinafter also referred to as "TEOS"). The mixture was emulsified using a homomixer (manufactured by HsiangTai, model: HM-310, the same applies hereinafter) at a rotation speed of 6,500 rpm for 5 minutes, followed by a rotation speed of 8,000 rpm for 5 minutes, to obtain an emulsion. The median diameter D of the emulsified droplets at this time was 0.01 g. 50 was 0.48 μm. The pH of the resulting emulsion was adjusted to 3.7 using 0.1N hydrochloric acid, and then transferred to a separable flask equipped with a stirring blade and a condenser. The liquid was stirred for 24 hours while maintaining the liquid temperature at 30°C, yielding an aqueous dispersion containing silica capsules (1-1) having a core made of model fragrance A and a first shell made of silica. (Process 2) To 99.88 g of the aqueous dispersion obtained in step 1, 300.84 g of water was added, and the resulting mixture was stirred at a liquid temperature of 30°C, while 24.00 g of TEOS was added. After continuing stirring for 24 hours, the mixture was cooled to form a second shell encapsulating the first shell, thereby obtaining an aqueous dispersion containing silica capsules (I) in which model fragrance A was encapsulated by amorphous silica. The median diameter D of the silica capsules (I) was 50 The median diameter D of the emulsion droplets and silica capsules (I) was 1.73 μm. 50 was measured using a laser diffraction / scattering particle size distribution analyzer "LA-960" (trade name, manufactured by Horiba, Ltd.). A flow cell was used for the measurement, and the medium was set to water and the refractive index was set to 1.40-0i. An emulsion or an aqueous dispersion containing silica capsules was added to the flow cell, and measurements were carried out at a concentration where the transmittance was around 90%, and the median diameter D 50 asked for. The thickness of the first shell was approximately 5 nm, and the thickness of the second shell was 5 to 30 nm.

[0146] <(b) Component> (b-1): N-(3-alkanoylaminopropyl)-N,N-dimethylamine obtained in Synthesis Example 2 below

[0147] <Synthesis Example 2> Synthesis of (b-1) A mixed fatty acid having a beef tallow hardened fatty acid composition and N-aminopropyl-N,N-dimethylamine were subjected to a dehydration condensation reaction by a conventional method in a molar ratio of fatty acid / amine = 0.95 / 1 to obtain N-(3-alkanoylaminopropyl)-N,N-dimethylamine.

[0148] <(c) component> (c-1): The reaction mixture obtained in Synthesis Example 3 below (c-2): The reaction mixture obtained in Synthesis Example 4 below

[0149] <Synthesis Example 3> Synthesis of (c-1) Triethanolamine and R 1 A fatty acid represented by COOH was subjected to an esterification reaction at a reaction molar ratio (fatty acid / triethanolamine) of 1.65 / 1 to obtain an esterification reaction product containing an amine compound represented by general formula (c1). The esterification reaction product contained 5% by mass of unreacted fatty acid (the composition of which is described below). After a quaternization reaction was carried out with dimethyl sulfate so that the methyl group was 0.96 equivalents relative to the amine of the amine compound in the esterification reaction product, 10% by mass of ethanol was added.

[0150] The resulting reaction product was analyzed by HPLC to determine the composition ratio of each component, and tetraoctylammonium bromide was used as an internal standard to quantify the product. As a result, it was found that the resulting reaction product was a mixture (total 100% by mass) consisting of the following components (c11-1), (c11-2), (c21-1) to (c21-3), and unreacted fatty acids. The quaternization rate was 86%. The quaternization rate can be calculated from the amine value.

[0151] The content in ( ) is the quaternary ammonium ion moiety (CH3OSO3- The percentage of each component in the total of the fatty acid (excluding the fatty acid) and unreacted fatty acid is shown.

[0152] [ka]

[0153] In addition, R used in the reaction for producing (c-1) 1 The composition of COOH is shown below. Palmitic acid: 45% by mass Stearic acid: 25% by mass Fatty acids with 18 carbon atoms and one unsaturated group: 27% by mass Fatty acids with 18 carbon atoms and two unsaturated groups: 3% by mass The composition of the fatty acids used as raw materials was analyzed by gas chromatography, and the area percentage of each fatty acid was considered to be mass percentage. The mass ratio of the cis / trans isomers of the unsaturated groups was 85 / 15 ( 1 H-NMR integral ratio).

[0154] <Synthesis Example 4> Synthesis of (c-2) N-methyldiethanolamine and R 1 A fatty acid represented by COOH was subjected to an esterification reaction at a reaction molar ratio (fatty acid / triethanolamine) of 1.9 / 1 to obtain an esterification reaction product containing an amine compound represented by general formula (c1). The esterification reaction product contained 5% by mass of unreacted fatty acid (the composition is described below). 10% by mass of ethanol was added to the amine of the amine compound in the esterification reaction product, and the mixture was uniformly mixed. Then, a quaternization reaction was carried out with methyl chloride so that the methyl group was 0.98 equivalents relative to the amine. The quaternary grade rate was 89%. The resulting reaction product was analyzed by HPLC to determine the composition ratio of each component, and quantified using tetraoctylammonium bromide as an internal standard. As a result, the resulting reaction product was found to be a mixture (totaling 100% by mass) consisting of the following components (c12-1), (c22-1) to (c22-2), and unreacted fatty acids. The numbers in parentheses indicate the quaternary ammonium ion moieties (Cl) of the (c12-1) component, (c22-1) component, and (c22-2) component. - The percentage of each component in the total of the fatty acid (excluding the fatty acid) and unreacted fatty acid is shown.

[0155] [ka]

[0156] In addition, R used in the reaction for producing (c-2) 1 The composition of COOH is shown below. Palmitic acid: 10% by mass Stearic acid: 60% by mass Fatty acids with 18 carbon atoms and one unsaturated group: 30% by mass The composition of the fatty acids used as raw materials was analyzed by gas chromatography, and the area percentage of each fatty acid was considered to be mass percentage. The cis / trans ratio of the unsaturated groups was 1 / 1 ( 1 H-NMR integral ratio).

[0157] <(d) component> (d-1): Fragrance composition described in Table 2

[0158] [Table 2]

[0159] <(e) component> (e-1): A compound in which an average of 30 moles of ethylene oxide is added to lauryl alcohol That is, in general formula (e1-1), R 1e is a linear alkyl group having 12 carbon atoms and bonded to an oxygen atom. 1e A nonionic surfactant in which the carbon atom in

[0160] <Component (f)> (f-1): Calcium chloride

[0161] <Component (i)> (i-1): Aqueous emulsion of dimethylpolysiloxane produced in Synthesis Example 5 below.

[0162] <Synthesis Example 5> Synthesis of (i-1) 5 g of polyoxyethylene lauryl ether having an average addition mole number of 5 moles was dissolved in dimethylpolysiloxane (viscosity at 25°C: 500,000 mm 2 The mixture was added to 300 g of dimethylpolysiloxane (300 g of sodium polyoxyethylene lauryl ether sulfate) under high shear force (1 / s) and stirred for another 10 minutes. Subsequently, 30 g of ion-exchanged water was added, followed by 2 g of sodium polyoxyethylene lauryl ether sulfate (average number of added moles: 2 mol) and 15 g of polyoxyethylene myristyl ether (average number of added moles: 40 mol). Stirring was continued for another 30 minutes under high shear force. 248 g of water was then added and stirred to obtain an aqueous emulsion of dimethylpolysiloxane [(i-1)]. The volume-average particle size of the emulsified particles in (i-1) was 500 nm. The dimethylpolysiloxane content in (i-1) was 50% by mass. The volume-average particle size was measured by dispersing the aqueous emulsion in ethanol using an electrophoretic light scattering photometer (Otsuka Electronics Co., Ltd., Model ELS-8000) at 20°C.

[0163] <(j) component> (j-1): 10% by mass hydrochloric acid aqueous solution (j-2): Citric acid

[0164] <(l) component> (l-1): Propylene glycol

[0165] <(m) component> (m-1): Trisodium methylglycine diacetate

[0166] <(o) component> (o-1): Proxel BDN (Arch Chemical Japan)

[0167] <Example 1 and Comparative Example 1> [Preparation of Liquid Textile Treatment Composition] Liquid textile product treatment compositions were prepared by mixing the components to obtain the formulation shown in Table 3. Specifically, the formulation is as follows: Note that the mass % of the composition in the table is the mass % of the active ingredient (the mass % of component (a) is the fragrance composition). A 300 mL beaker was charged with 85% by mass of ion-exchanged water necessary to produce 200 g of liquid textile treatment composition, along with components (e), (i), (j), (l), (m), and (o). The temperature of the ion-exchanged water was adjusted to 60±2°C using a water bath. A mixture was obtained by stirring, as needed, using a stirring blade to ensure uniform dissolution of component (e) in the ion-exchanged water. The stirring blades used were three blades, with the long side at a 90° angle relative to the rotational center axis of a 5 mm diameter stirring rod, measuring 3 cm / 1.5 cm, and the blades were positioned at a 45° angle relative to the rotational plane.

[0168] The mixture, whose temperature had been adjusted to 60±2°C, was stirred (300 rpm) with the stirring blade. To this mixture, component (b) and component (c), which had been heated and dissolved at 65°C, were added over 3 minutes, and after the addition was completed, the mixture was stirred for 15 minutes. Next, the mixture was cooled in a 5°C water bath until the temperature reached 30±2°C. Components (a), (d), and (f) were added sequentially and stirred for 5 minutes. Ion-exchanged water was then added to the mixture to a final mass of 200 g, and the mixture was stirred for 5 minutes to obtain a liquid textile treatment composition. The visible light transmittance of the obtained liquid textile treatment compositions was measured. Specifically, a glass cell with an optical path length of 10 mm was used as the measurement cell, and ion-exchanged water was placed in the control cell, and measurements were made using an ultraviolet-visible spectrophotometer (Shimadzu UV-2500PC). The visible light transmittance (wavelength 660 nm) of the liquid textile treatment compositions obtained in the examples and comparative examples was all less than 10%, and they were emulsion-type liquid textile treatment compositions.

[0169] 〔evaluation〕 Seventeen pairs of underwear (Gunze men's round-neck short-sleeved shirts, size L) were washed five times in a Hitachi NW-6CY fully automatic washing machine using a commercially available weak alkaline detergent (Kao Attack), and then dried indoors to remove excess detergent. The washing conditions for each cycle were: detergent concentration 0.0667% by mass, tap water 47 L, water temperature 20°C, wash time 10 minutes, rinse cycle 2 times, and spin cycle 6 minutes.

[0170] A treatment solution prepared by dispersing 0.867 g (10 g / 1.5 kg of underwear) of the liquid textile treatment composition in 4 L of tap water was added to a Panasonic electric bucket N-BK2-A, and one piece of underwear washed as described above was added and stirred for 5 minutes. The underwear treated with the liquid textile treatment composition was then dehydrated for 3 minutes in the spin tub of a Hitachi twin-tub washing machine, and then hung on hangers in a room at 20°C and 40% RH to dry for 24 hours. This procedure was repeated three times for each liquid textile treatment composition, resulting in five pieces of underwear treated with the liquid textile treatment composition.

[0171] (1) Effectiveness of the fragrance A 20cm x 20cm piece of fabric was cut from the prepared underwear and used for scent evaluation. The evaluation method was to first smell the scent in a dry state, then use a spray to moisten the fabric with water to 10-20% owf, and then fold the fabric in four. After leaving it to stand for a few seconds, the fabric was opened and the scent at the intersection of the folds was smelled. The difference in scent intensity between the dry and wet states was evaluated, and this was taken as the effectiveness of the moisture scent release. The evaluation was carried out by five expert panelists who evaluate scents. The evaluation was carried out according to the following criteria, and the average value of the evaluations by the five people was used as the evaluation result.

[0172] <Evaluation criteria> (Evaluation criteria for fragrance intensity) 3: Large difference in fragrance intensity 2: Small difference in fragrance intensity 1: No noticeable difference in scent intensity (Evaluation criteria for fragrance expression) 3: Feels very fresh 2: Feels weak and fresh 1: Doesn't feel fresh at all

[0173] [Table 3]

Claims

1. A textile product treatment composition comprising the following components (a) and (b): Component (a): A microcapsule having a shell containing silica as a constituent component, and a core inside the shell containing a fragrance composition containing 25% by mass or more of a fragrance compound that includes an alcohol-based fragrance compound and has a log P of 2.0 or more and 5.0 or less and a vapor pressure at 25°C of 0.01 Pa or more and 8.00 Pa or less. Component (b): one or more compounds selected from amine compounds represented by the following general formula (b1) and acid salts thereof: 【Chemical 1】 [In the formula, R １ｂ is an alkyl group having 13 to 19 carbon atoms or an alkenyl group having 13 to 19 carbon atoms, and R ２ｂ is an alkylene group having 1 to 6 carbon atoms, and R ３ｂ , R ４ｂ are each independently an alkyl group having 1 to 3 carbon atoms.

2. The textile product treatment composition according to claim 1, further comprising the following component (c): Component (c): one or more compounds selected from the following components (c1) and (c2): Component (c1): one or more compounds selected from tertiary amine compounds represented by the following general formula (C1) and acid salts thereof: Component (c2): one or more compounds selected from quaternized tertiary amine compounds represented by the following general formula (C1): 〔R １ｃ -C(=O)-O-(C ｐ H ２ｐ O) ｒ -C ｑ H ２ｑ 〕 ｍ N(R ２ｃ ) ３－ｍ (C1) [In the formula, R １ｃ is a hydrocarbon group having 11 to 23 carbon atoms, and R ２ｃ is a hydrocarbon group having 1 to 3 carbon atoms and HO—(C ｐ H ２ｐ O) ｒ -C ｑ H ２ｑ m is a number of 1 or more and 3 or less, p and q are each independently a number of 2 or 3, and r is a number of 0 or more and 5 or less. １ｃ , R ２ｃ When a plurality of p, q, and r are present, they may be the same or different.

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

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

5. The textile product treatment composition according to any one of claims 1 to 4, wherein component (a) is a microcapsule having a first shell encapsulating the core and a second shell encapsulating the first shell.

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

7. The textile treatment composition according to claim 5 or 6, wherein the second shell has an average thickness of 100 nm or less.

8. The textile product treatment composition according to any one of claims 1 to 7, further comprising the following component (d): (d) ingredient: fragrance other than (a) ingredient

9. The textile product treatment composition according to any one of claims 1 to 8, wherein the acid salt of the tertiary amine compound of component (b) is a hydrochloride salt.

10. A textile product treatment composition according to any one of claims 1 to 9, wherein the content of component (a) in the textile product treatment composition is 0.1 mass % or more and 1.0 mass % or less as a fragrance composition contained in component (a), and the content of component (b) is 0.1 mass % or more and 5.0 mass % or less.

11. A textile product treatment composition described in any one of claims 1 to 10, wherein the content of component (c) in the textile product treatment composition is 3.0 mass% or more and 20 mass% or less.

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