Method of improving adsorptivity of beneficial component to fiber product and fiber product treating agent composition

Abstract

To provide a method of making a beneficial component adsorbed into a fiber product by bringing a fiber product treating agent composition comprising microcapsules encapsulating a beneficial agent composition containing a beneficial ingredient to contact the fiber product.SOLUTION: In the method of making a beneficial component adsorbed into a fiber product by bringing a fiber product treating agent composition comprising microcapsules [(A) component] encapsulating a beneficial agent composition containing a beneficial ingredient to contact the fiber product, silicic acid and / or silicate, or a compound that generates silicic acid and / or silicate in water [component (B)] is added to the fiber product treating agent composition, and the composition is used as a fiber product treating agent composition having a pH of 2 or more and less than 8 at 30°C.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a method for improving the adsorption of beneficial ingredients onto textile products, and further to textile treatment compositions. [Background technology]

[0002] In recent years, active research has been conducted into the incorporation of beneficial ingredients into cleaning agents and textile treatment agents. Beneficial ingredients include, for example, fragrances, nonionic bactericides, antioxidants, and fluorescent whitening agents. However, such compounds are difficult to adsorb to textile products, and fragrances in particular contain highly volatile components. Therefore, in order to improve the adsorption to textiles and the persistence of the fragrance, technology for encapsulating fragrances in capsules has been actively developed.

[0003] Patent Document 1 discloses a liquid fabric softener composition which contains as component (A) a tertiary amine compound or an acid salt thereof and a quaternary product of the tertiary amine compound, as component (B) microcapsules composed of one or more selected from polyurethane, polyamide, melamine resin, urea resin, alginate, polyacrylic resin, gelatin and gum arabic encapsulating a fragrance compound having a logP value of 2.0 or more and 6.0 or less, as component (C) an ester of fragrance and silicic acid, and water, and which has a pH of 2.5 or more and 4.0 or less at 30°C.

[0004] Patent Document 2 discloses a textile product treatment composition containing component (A): a microcapsule having a shell containing silica and a core containing a fragrance compound inside the shell, and component (B): a cationic surfactant, and having a pH of 4.0 or less at 30°C.

[0005] Patent Document 3 discloses a technique for coating a water-soluble carrier with a coating agent containing a fragrance, and describes that silicates can be used as the water-soluble carrier.

[0006] On the other hand, Patent Document 4 discloses a technology for a powder detergent containing microcapsules, and although this publication describes a technology for using a silicate in combination, it is an alkaline powder detergent. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2014-125685 A [Patent Document 2] Special Publication No. 2023-4928 [Patent Document 3] JP 2016-104478 A [Patent Document 4] JP 2015-528828 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0008] When textile products are treated with an aqueous composition containing such beneficial ingredient-containing microcapsules, the beneficial ingredient is effectively adsorbed onto the textile. However, such aqueous compositions are often used in the neutral to acidic pH range, and there is a problem that the adsorption of the beneficial ingredient decreases when the aqueous composition is stored in the pH range, and this problem is particularly noticeable when silicate shell microcapsules are used.

[0009] In view of the above problems, the present inventors conducted extensive research and discovered a method for contacting a textile product with a textile product containing microcapsules encapsulating beneficial ingredients, thereby adsorbing the beneficial ingredients onto the textile product. The method further involves coexisting the composition with silicic acid and / or a silicate salt, or a compound that generates silicic acid and / or a silicate salt in water, and using the composition as a textile product treatment composition having a pH of 2 or greater but less than 8 at 30°C.

[0010] In other words, the present invention relates to a method for adsorbing beneficial ingredients onto a textile product by contacting a textile product with a textile product treatment composition containing microcapsules [hereinafter referred to as component (A)] encapsulating a beneficial agent composition containing beneficial ingredients, in which silicic acid and / or silicate salts, or a compound that generates silicic acid and / or silicate salts in water [hereinafter referred to as component (B)] is coexisted with the composition, and the composition is used as a textile product treatment composition having a pH of 2 or more and less than 8 at 30°C. The present invention also relates to a textile product treatment composition containing component (A) and component (B) and having a pH of 2 or more and less than 8 at 30°C. Effect of the Invention

[0011] According to the present invention, leakage of beneficial ingredients encapsulated in microcapsules can be suppressed, and the beneficial ingredients can be efficiently adsorbed onto textile products. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Next, each component contained in the composition will be described. <Component (A)> The textile treatment composition of the present invention contains, as component (A), microcapsules encapsulating a benefit agent composition containing one or more beneficial ingredients.

[0013] Specifically, examples of the components of the shell of the microcapsule include silica, ethyl cellulose, hydroxypropyl methylcellulose, polyvinyl alcohol, gelatin, alginic acid, melamine, urea membrane, urethane membrane, CMC (cell membrane complex) membrane, etc. From the viewpoint of mechanical strength and the ability to capture beneficial ingredients contained therein, silica is preferred as the component. Hereinafter, microcapsules having a shell containing silica as a component (A) are also referred to as silica capsules. Beneficial ingredients can be encapsulated in the silica capsules.

[0014] <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.

[0015] The raw material for the shell may be, for example, at least one selected from the group consisting of silicon tetrachloride, tetraalkoxysilane, alkylalkoxysilane, water glass, and metal silicate.

[0016] Among these, from the viewpoint of high-temperature storage stability, tetraalkoxysilane and alkylalkoxysilane are preferred, tetraalkoxysilane is more preferred, and in particular, those formed by a sol-gel reaction using alkoxysilane or alkylalkoxysilane as a raw material are preferred. The term "high-temperature storage stability" means that the silica capsule remains stable without breaking even when stored at temperatures of about 40 to 70°C, which are slightly higher than room temperature.

[0017] In the present invention, the "sol-gel reaction" refers to a reaction in which alkoxysilane undergoes hydrolysis and polycondensation reaction to form silica, which is a component of the shell, through a sol and 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 proceeds to form silica.

[0018] Specific examples of tetraalkoxysilane include tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, etc. From the viewpoint of high-temperature storage stability, tetramethoxysilane and tetraethoxysilane are preferred, and tetraethoxysilane is more preferred. Specific examples of alkylalkoxysilanes include methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, dimethyldimethoxysilane, methylphenyldimethoxysilane, dimethyldiethoxysilane, diphenyldiethoxysilane, methylphenyldiethoxysilane, ethylphenyldimethoxysilane, diethyldiethoxysilane, ethylphenyldiethoxysilane, trimethylmethoxysilane, trimethylethoxysilane, dimethylphenylethoxysilane, triethylmethoxysilane, and triethylethoxysilane. These may be used alone or in combination of two or more. Condensates thereof may also be used.

[0019] In addition, the shell of the silica capsule of the present invention may contain inorganic polymers other than silica as a constituent component within a range that does not impair the effects of the present invention.In the present invention, the inorganic polymer refers to a polymer that contains inorganic elements.The inorganic polymer may include a polymer that is composed of only inorganic elements, a polymer whose main chain is composed of only inorganic elements and has an organic group as a side chain or a 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 above-mentioned 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 the metal or semi-metal element constituting the metal alkoxide include titanium, zirconium, aluminum, and zinc.

[0020] (Manufacturing of Silica Capsules) From the viewpoint of increasing the encapsulation rate of beneficial ingredients, improving long-term retention, and adsorbing the beneficial ingredients-encapsulated silica capsules to textile products and then efficiently releasing the beneficial ingredients, the shell of the silica capsule of the present invention preferably contains silica formed by carrying out a sol-gel reaction in two stages as a constituent. 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 and an oil phase component containing a beneficial ingredient and 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 to form silica capsules (2) having a second shell that encapsulates the first shell.

[0021] [Process 1] Step 1 is a step of subjecting an emulsion obtained by emulsifying an aqueous phase component containing a cationic surfactant and an oil phase component containing a beneficial ingredient and a tetraalkoxysilane to a sol-gel reaction under acidic conditions to form silica capsules (1) having a core and a first shell containing silica as a constituent component, and obtaining an aqueous dispersion containing the silica capsules (1).

[0022] Examples of cationic surfactants in step 1 include alkylamine salts and alkyl quaternary ammonium salts. The alkylamine salts are preferably secondary amines or tertiary amines, more preferably tertiary amines. The carbon number of the alkyl group of the alkylamine salts and alkyl quaternary ammonium salts is divided into long-chain alkyl groups, short-chain alkyl groups and benzyl groups, the long-chain alkyl groups are 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, even more preferably 18 or less, and the short-chain alkyl groups are 1 to 4 carbon atoms, preferably 1 or 2, and more preferably methyl groups. Examples of the alkylamine salt include alkylamine salts in which the alkyl group has a carbon number within the above range, such as long-chain monoalkyl monomethyl secondary amine salts and long-chain monoalkyl dimethyl tertiary amine salts. Examples of the quaternary ammonium salt include long-chain alkyl short-chain trialkyl quaternary ammonium salts, long-chain dialkyl dishort-chain alkyl quaternary ammonium salts, and long-chain alkyl benzyl short-chain dialkyl quaternary ammonium salts, in which the alkyl group has the above-mentioned carbon number.

[0023] Examples of the alkylamine salt 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 the dialkyldimethylammonium salt include dialkyldimethylammonium chlorides such as distearyldimethylammonium chloride; and dialkyldimethylammonium bromides such as distearyldimethylammonium bromide. Examples of the alkylbenzyldimethylammonium salt 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, still more preferably one or more selected from lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, and cetyltrimethylammonium chloride, and even more preferably cetyltrimethylammonium chloride.

[0024] In step 1, in addition to the cationic surfactant, other emulsifiers may be further contained within a range that does not impair the effects of the present invention. Examples of other emulsifiers include polymer dispersants, nonionic surfactants, anionic surfactants, and amphoteric surfactants.

[0025] In step 1, the content of the 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 emulsion 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 due to excess emulsifier that does not contribute to the dispersion stability of the emulsion and improving encapsulation efficiency.

[0026] The amount of the 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.

[0027] 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 organic compounds in step 1, from the viewpoint of promoting 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 organic compounds.

[0028] Step 1 preferably includes the following steps 1-1 to 1-4. Step 1-1: A step of preparing an aqueous phase component containing a cationic surfactant. Step 1-2: A step of mixing a beneficial ingredient and 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 made of silica.

[0029] The stirring means used in preparing the emulsion is not particularly limited, and may be a homogenizer having a strong shearing force, a high-pressure disperser, an ultrasonic disperser, etc. Also usable are Homomixer, Disper (manufactured by Primix Corporation), Clearmix (manufactured by M Technique Co., Ltd.), Cavitron (manufactured by Pacific Machinery Works, Ltd.), etc.

[0030] Median diameter D of emulsion droplets in the emulsion of step 1 50 From the viewpoint of reducing the specific surface area relative to the environment outside the silica capsule and enhancing long-term retention, it is preferably 0.1 μm or more, more preferably 0.2 μm or more, and even more preferably 0.3 μm or more, and from the viewpoint of the physical strength of the silica capsule, it is preferably 50 μm or less, more preferably 30 μm or less, even more preferably 10 μm or less, even more preferably 5 μm or less, and even more preferably 3 μm or less. Median diameter of emulsion droplets D 50 can be measured by the method described in the Examples.

[0031] The initial pH of the sol-gel reaction in step 1 is preferably 3.0 or more, more preferably 3.3 or more, and even more preferably 3.5 or more, from the viewpoint of maintaining a balance between the hydrolysis reaction and the condensation reaction of the tetraalkoxysilane, and from the viewpoint of suppressing the production of a highly hydrophilic sol and promoting the progress of encapsulation, and is preferably 4.5 or less, more preferably 4.3 or less, and even more preferably 4.1 or less, from the viewpoint of suppressing the simultaneous formation of a silica shell and the aggregation of emulsion droplets and obtaining silica capsules (1) having a dense shell.

[0032] Depending on the strength of acidity or alkalinity of the oil phase components, including the beneficial ingredient, any acidic or alkaline pH adjuster may be used with a view to adjusting the initial pH to the desired level. The pH of the emulsion may be lower than 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, forming silica capsules (1) having a core and a first shell, and obtaining an aqueous dispersion containing the silica capsules (1).

[0033] 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 in which cation exchange resins or the like have been added to water or ethanol, and preferred are hydrochloric acid, sulfuric acid, nitric acid, and citric acid. Examples of alkaline pH adjusters include sodium hydroxide, sodium hydrogen carbonate, potassium hydroxide, ammonium hydroxide, diethanolamine, triethanolamine, trishydroxymethylaminomethane, and the like, with sodium hydroxide and ammonium hydroxide being preferred.

[0034] The reaction temperature of the sol-gel reaction in step 1 can be any value 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 aqueous phase, but it is preferable to set the temperature within a certain range 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 range is preferably 5 to 60°C, more preferably 10 to 50°C, and even more preferably 15 to 40°C.

[0035] [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 to form silica capsules (2) having a second shell that encapsulates the first shell.

[0036] 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, of the beneficial ingredients 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 generation of silica sol that disperses in the aqueous phase and improving the dispersion stability of the silica capsules.

[0037] 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 portions, or may be added continuously. From the viewpoint of forming a highly dense second shell, however, it is preferable to add it dropwise continuously. When the tetraalkoxysilane is added dropwise continuously, the drop time can be appropriately set depending on the scale of production. From the viewpoint of suppressing separation of the added tetraalkoxysilane from the aqueous dispersion, the drop time is preferably 5 minutes or more, more preferably 10 minutes or more, even more preferably 30 minutes or more, and is preferably 1200 minutes or less, more preferably 1000 minutes or less, even more preferably 500 minutes or less.

[0038] In the present invention, the total amount of tetraalkoxysilane added, i.e., the total amount of tetraalkoxysilane used 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 in step 1. By setting the total amount of tetraalkoxysilane added within the above range, the encapsulated functional agent can be maintained for a long period of time.

[0039] In the present invention, the total amount of the functional agent and tetraalkoxysilane in step 1 relative to the total amount of the aqueous dispersion before the addition of tetraalkoxysilane in step 2 is preferably 20 mass% or less, more preferably 18 mass% or less, even more preferably 15 mass% or less, and even more preferably 10 mass% or less, from the viewpoint of improving the long-term retention of the functional agent, and is preferably 2 mass% or more, more preferably 3 mass% or more, and even more preferably 5 mass% or more, from the viewpoint of production efficiency. The total amount of the functional agent and tetraalkoxysilane in step 1 relative to the total amount of the aqueous dispersion before the addition of tetraalkoxysilane in step 2 may be adjusted by carrying out step 1 so that the amounts of the organic compound and tetraalkoxysilane in step 1 and the total amount of the aqueous dispersion obtained in step 1 are within the above-mentioned ranges, or by further adding water to the aqueous dispersion obtained in step 1 to dilute it.

[0040] From the viewpoint of production efficiency, the present invention may dilute the aqueous dispersion obtained in step 1 with water before the addition of the tetraalkoxysilane in step 2. The total amount of the functional agent and the tetraalkoxysilane in step 1 relative to the total amount of the aqueous dispersion obtained in step 1 before dilution is preferably 3 mass% or more, more preferably 5 mass% or more, even more preferably 10 mass% or more, still more preferably 15 mass% or more, and is preferably 50 mass% or less, more preferably 40 mass% or less, and even more preferably 30 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.

[0041] The reaction temperature of the sol-gel reaction in step 2 can be selected arbitrarily so 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 equal to or higher than 5° C., more preferably equal to or higher than 10° C., even more preferably equal to or higher than 15° C., and is preferably equal to or lower than 60° C., more preferably equal to or lower than 50° C., even more preferably equal to or lower than 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.

[0042] In the present invention, in step 2, an organic polymer compound may be further added to the aqueous dispersion obtained in step 1. Here, the organic polymer compound means a compound having a weight average molecular weight of 5,000 or more. The organic polymer compound is preferably at least one selected from a cationic polymer and a nonionic polymer. The nonionic polymer means a water-soluble polymer that has no electric charge in water. By using the nonionic polymer, it is possible to impart a function to the silica capsule according to the application of the silica capsule. When a cationic polymer or a nonionic polymer is used as the organic polymer compound, for example, when the silica capsules of the present invention are used in a fabric treatment composition such as a fabric 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.

[0043] Examples of the nonionic polymer include polymers having a structural unit derived from a nonionic monomer, 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 means acrylate or methacrylate. Similarly, (meth)acrylic means acrylic or methacrylic. The nonionic polymer is preferably one or more selected from polyvinylpyrrolidone, copolymers of vinylpyrrolidone with other nonionic monomers such as vinylpyrrolidone / vinyl acetate copolymer, and cellulose-based 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.

[0044] Examples of the cationic polymer include a polymer containing a quaternary ammonium salt group, a polymer having a nitrogen-based cationic group, a polymer that may become cationic by adjusting the pH, etc. By using a cationic polymer, the situation in which the silica capsules (1) obtained in step 1 tend to aggregate in the aqueous dispersion can be alleviated, and the generation of coarse particles, etc. can be suppressed 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) and 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, and one or more selected from poly(diallyldimethylammonium chloride), poly(acrylic acid-co-diallyldimethylammonium chloride), and poly(acrylamide-co-acrylic acid-co-diallyldimethylammonium chloride) are more preferred, and poly(diallyldimethylammonium chloride) is even more preferred.

[0045] 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 is preferably 10 meq / g or less, more preferably 8 meq / g or less, from the viewpoint of dispersibility of the silica capsule (1), suppression of generation of coarse particles, and improvement of long-term retention. The cationic polymer may contain an anionic group, 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.

[0046] 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 aqueous dispersion obtained in step 1.

[0047] Examples of the anionic polymer 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 the anionic polymer 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. Incidentally, (meth)acrylic acid means acrylic acid or methacrylic acid.

[0048] The silica capsules (2) obtained by step 2 are obtained in a dispersed state in water. Depending on the application, they may be used as they are, but in some cases, the silica capsules are separated and used. As a separation method, a filtration method, a centrifugation method, etc. may be adopted.

[0049] <Core> The core of component (A) of the present invention is a benefit agent composition containing one or more benefit ingredients. The benefit agent composition contains a benefit ingredient. The benefit ingredient may be, for example, an oil-soluble liquid, and the core containing the benefit ingredient is present inside the shell, so that when the first shell and the second shell are broken, the benefit ingredient in the core is released and functions.

[0050] Examples of the beneficial ingredient include one or more selected from the group consisting of fragrances, fragrance precursors, fluorescent whitening agents, oils, antioxidants, cooling agents, warming agents, bactericides, dyes, pigments, and ultraviolet absorbers. The beneficial ingredient may also be a skin care ingredient such as a moisturizer, a cosmetic oil, a preservative, an insecticidal ingredient, and an insect repellent ingredient. These benefit ingredients may be in the form of, for example, silicones or oil-soluble polymers.

[0051] For example, when a fragrance is used as the beneficial ingredient, component (A) has a core encapsulating the fragrance compound inside the shell, and when the first shell and the second shell are ruptured, the fragrance compound in the core is released and gives off a fragrance.

[0052] The fragrance may be a fragrance compound used alone, or may be a fragrance composition containing two or more fragrance compounds.Specific examples of the fragrance compounds include cis-3-hexenol, 1-(2,2,6-trimethylcyclohexyl)-3-hexanol, 2-methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol (Kao Corporation product name: Sandal Mysore Core), a mixture mainly composed of ethylnorbornylcyclohexanol (Kao Corporation product name: Magnol), 4-methyl-3-decen-5-ol (Givaudan Corporation product name: Undecavertol), isobornylcyclohexanol, 1-(2-tert-butylcyclohexyloxy)-2-butanol (Kao Corporation product name: amber core), 1-(2,2,6-trimethylcyclohexyl)-3-hexanol and other alcohols, linalool, citronellol, geraniol, nerol, terpineol, α-terpineol, dihydromyrcenol, farnesol, nerolidol, cedrol, menthol, borneol, tetrahydrolinalool and other terpene alcohols, phenylethyl alcohol, benzyl alcohol, dimethylbenzyl carbinol, phenylethyl dimethyl carbinol, phenylhexanol and other aromatic alcohols, dipropylene glycol and other glycols, 4-methyl-2-(2-methylpropyl)tetrahydro-2H-4-pyranol (Givaudan trade name) Examples of the alcohol include other alcohols such as ethylhexyl ether (Florosa), terpenes such as limonene, α-pinene, β-pinene, and terpinene, sesquiterpenes such as cedrene, longifolene, and valencene, and phenols such as guaiacol, eugenol, dihydroeugenol, isoeugenol, thymol, para-cresol, vanillin, and ethyl vanillin.

[0053] Other examples include acetate esters such as ethyl acetate, isopentyl acetate, hexyl acetate, cis-3-hexenyl acetate, linalyl acetate, citronellyl acetate, geranyl acetate, neryl acetate, terpinyl acetate, nopyr acetate, bornyl acetate, isobornyl acetate, eugenyl acetate, isoeugenyl acetate, o-tert-butylcyclohexyl acetate, p-tert-butylcyclohexyl acetate, tricyclodecenyl acetate, benzyl acetate, phenylethyl acetate, styrallyl acetate, cinnamyl acetate, dimethylbenzylcarbinyl acetate, phenylethylphenyl acetate, 3-pentyltetrahydropyran-4-yl acetate, and paracresylphenyl acetate. Other examples include carboxylates such as formic acid, propionic acid, and caproic acid corresponding to these acetate esters, and aromatic carboxylates such as benzoic acid, anisic acid, phenylacetic acid, cinnamic acid, salicylic acid, and anthranilic acid.

[0054] In addition, ethyl dihydrocyclogeranate (Givaudan trade name: Ethyl Safranate), ethyl 2-cyclohexylpropionate (Kao Corporation trade name: Poirenate), tricyclo[5.2.1.0 2,6 ]Other carboxylic acid esters include ethyl decane-2-carboxylate (trade name: Fultate, Kao Corporation), methyl jasmonate, methyl dihydrojasmonate (trade name: MDJ, Kao Corporation), methyl (2-pentyl-3-oxocyclopentyl)acetate, allyl cyclohexyl propionate, allyl heptanoate, ethylene brassylate, ethylene dodecanediolate, ethyl 2-methylbutyrate, and ethyl 2-methylpentanoate.

[0055] Other examples include carbonates such as cis-3-hexenyl methyl carbonate (IFF product name: Rifarome), methyl cyclooctyl carbonate (Kao Corporation product name: Jasmaclat), and ethyl 2-tert-butyl cyclohexyl carbonate (Kao Corporation product name: Floramat).

[0056] In addition, octanal, nonanal, decanal, dodecanal, 2-methylundecanal, 10-undecenal, citronellal, citral, hydroxycitronellal, 2,4-dimethyl-3-cyclohexene-1-carboxaldehyde (IFF trade name: Tripral), dimethyl-3-cyclohexenyl-1-carboxaldehyde (Kao Corporation trade name: Cyclovertal), benzaldehyde, phenylacetaldehyde, phenylpropylaldehyde, cinnamaldehyde, dimethyltetrahydrobenzaldehyde, 3-(4-tert-butylphenyl)propanal (Givaudan trade name: Bourgeonal), hydroxymylac aldehyde (IFF trade name: Lyral), 2-cyclohexylpropanal (Kao Corporation trade name: Examples of aldehydes include Polenal II), p-tert-butyl-α-methylhydrocinnamic aldehyde (Givaudan trade name Lilial), p-isopropyl-α-methylhydrocinnamic aldehyde, 3-(o-(and p-)ethylphenyl)-2,2-dimethylpropionaldehyde (IFF trade name Floralozone), α-amylcinnamaldehyde, α-hexylcinnamaldehyde, heliotropin, α-methyl-1,3-benzodioxole-5-propanal (IFF trade name Helional), 2-methyl-3-(paramethoxyphenyl)propanal (IFF trade name Canthoxal), amylcinnamic aldehyde, helional, and [(3,7-dimethyl-6-octenyl)oxy]acetaldehyde.

[0057] In addition, methylheptenone, dimethyloctenone, 3-octanone, hexylcyclopentanone, dihydrojasmone, 2,2,5-trimethyl-5-pentylcyclopentanone (Firmenich trade name: Beloutone), 2-[2-(4-methyl-3-cyclohexen-1-yl)propyl]cyclopentanone (Givaudan trade name: Nectaryl), ionone, β-ionone, β-methylionone, γ-methylionone, α-damascone, β-damascone, δ-damascone, 1-(2,4,4-trimethyl-2-cyclohexyl)-trans-2-butanone (Symrise trade name: Isodamascone), damascenone, 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one (Firmenich trade name: Dynacon), iron, 1,2,3,5,6,7-hexahydro-1,1,2,3,3-pentamethyl-4H-inden-4-one (IFF trade name Cashmeran), 1-(1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethane-1-one (IFF trade name Iso-E-Super), 7-methyl-3,4-dihydro-2H-benzodioxepin-3-one (Firmenich trade name Calone), carvone, menthone, acetyl cedrene, isolongifolanon, nootkatone, benzyl acetone, raspberry ketone, benzophenone, 6-acetyl-1,1,2,4,4,7-hexamethyltetrahydronaphthalene (PFW trade name Examples of ketones include ketones such as tonalide, methyl β-naphthyl ketone, ethyl maltol, camphor, muscone, 3-methyl-5-cyclopentadecen-1-one (Muscenone, a product of Firmenich), civetone, 8-cyclohexadecenone (Globanone, a product of Symrise), methyl nonyl ketone, cis-jasmone, para-amylcyclohexanone (4-pentylcyclohexanone), and 6,7-dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone.

[0058] Other examples include acetals such as acetaldehyde ethyl phenylpropyl acetal, citral diethyl acetal, phenylacetaldehyde glyceryl acetal, ethyl acetoacetate ethylene glycol acetal, 5-methyl-5-propyl-2-(1-methylbutyl)-1,3-dioxane (Kao Corporation product name Troenan), and α-methyl-3,4-methylenedioxyhydrocinnamic aldehyde.

[0059] Other examples include ethers such as ethyl linalool, cedryl methyl ether, estragole, anethole, β-naphthyl methyl ether, β-naphthyl ethyl ether, limonene oxide, rose oxide, nerol oxide, 1,8-cineole, rose furan, [3aR-(3aα,5aβ,9aα,9bβ)]dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan (Kao Corporation trade name Ambroxan), 3,3,5-trimethylcyclohexyl ethyl ether (Kao Corporation trade name Herbaveil), hexamethylhexahydrocyclopentabenzopyran (IFF Corporation trade name Galaxolide), phenylacetaldehyde dimethyl acetal, and ethoxymethylcyclododecyl ether (Kao Corporation trade name Boisanbrenforte).

[0060] Further examples include carboxylic acids such as benzoic acid, phenylacetic acid, cinnamic acid, hydrocinnamic acid, butyric acid, and 2-hexenoic acid.

[0061] Further examples include lactones such as ambrettolide, γ-decalactone, δ-decalactone, γ-valerolactone, γ-nonalactone, γ-undecalactone, δ-hexalactone, γ-jasmolactone, whiskey lactone, coumarin, cyclopentadecanolide, cyclohexadecanolide, 11-oxa-16-hexadecanolide (Givaudan trade name Musk R-1), and butylidenephthalide.

[0062] Further examples include nitrogen-containing organic compounds such as tridecene-2-nitrile, geranyl nitrile, citronellyl nitrile, dodecane nitrile, and indole.

[0063] The fragrance compound may be contained in the composition as a natural oil or natural extract such as orange, lemon, lime, bergamot, vanilla, mandarin, peppermint, spearmint, lavender, chamomile, rosemary, eucalyptus, sage, basil, rose, rock rose, geranium, jasmine, ylang-ylang, anise, clove, ginger, nutmeg, cardamom, cedar, cypress, vetiver, patchouli, lemongrass, labdanum, grapefruit, elemi oil, etc. Also, a fragrance mixture such as Sim Amber (manufactured by SYMRISE) and Ultrasool (manufactured by GIVAUDAN) may be used.

[0064] Examples of the fragrance precursor include compounds that react with water to release fragrance components.Specific examples of the fragrance precursor include silicate ester compounds having an alkoxy component derived from fragrance alcohol, fatty acid ester compounds having an alkoxy component derived from fragrance alcohol, acetal compounds or hemiacetal compounds obtained by reacting a carbonyl component derived from fragrance aldehyde or fragrance ketone with an alcohol compound, Schiff base compounds obtained by reacting a carbonyl component derived from fragrance aldehyde or fragrance ketone with a primary amine compound, and hemiaminal compounds or hydrazone compounds obtained by reacting a carbonyl component derived from fragrance aldehyde or fragrance ketone with a hydrazine compound.

[0065] Other types of fragrance precursors include compounds that react with light to release fragrance components. For example, 2-nitrobenzyl ether compounds having an alkoxy component derived from fragrance alcohol, α-ketoester compounds having a carbonyl component derived from fragrance aldehyde or fragrance ketone, and coumaric acid ester compounds having an alkoxy component derived from fragrance alcohol can be mentioned. These fragrance precursors may be used as polymers such as reaction products of some carboxy groups of polyacrylic acid and fragrance alcohol. Among these, silicate ester compounds having an alkoxy component derived from fragrance alcohol are preferred.

[0066] Furthermore, the fragrance composition contained in component (A) may also contain a fragrance compound having a vapor pressure of more than 8.00 Pa. Examples of fragrances with a vapor pressure of more 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), 2,4-dimethyl-3-cyclohexene-1-carboxaldehyde (IFF brand name Triplar) (46.9), and styrallyl acetate (14.9).

[0067] Specific examples of the bactericide contained in component (A) include one or more selected from benzyl alcohol, phenoxyethanol, 2-phenylethanol, 3-phenyl-1-propanol, benzyl glycol, phenyl diglycol, benzyl diglycol, 4-phenyl-1-butanol, triclosan, diclosan, and isopropyl methylphenol. From the standpoint of fungicidal effect and formulation stability, one or more selected from benzyl alcohol, phenoxyethanol, phenyl diglycol, triclosan, diclosan, and isopropyl methylphenol are preferred, with diclosan being most preferred.

[0068] Examples of ultraviolet absorbers contained in component (A) include 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, 2-[4-diethylamino-2-hydroxybenzoyl]benzoic acid hexyl ester, 4-tert-butyl-4'-methoxydibenzoylmethane, tert-butyl methoxydibenzoylmethane, ethylhexyl triazone, oxybenzone, oxybenzone sulfonic acid, octocrylene, 2-ethylhexyl salicylate, homomenthyl salicylate, and diethylaminohydroxybenzoyl. Organic ultraviolet absorbers such as hexyl benzoylbenzoate, terephthalylidene dicamphor sulfonic acid, drometrizole trisiloxane, 2-ethylhexyl paramethoxycinnamate, bisethylhexyloxyphenol methoxyphenyl triazine, hydroxymethoxybenzophenone sulfonic acid, phenylbenzimidazole sulfonic acid, ferulic acid, homosalate, homomenthyl salicylate, methylene bisbenzotriazolyl tetramethylbutylphenol, and inorganic ultraviolet absorbers such as titanium oxide and zinc oxide can be used. One or more of these ultraviolet absorbers can be used.

[0069] The logP value of the beneficial ingredient is preferably 2 or more, more preferably 3 or more, even more preferably 4 or more, and is preferably 30 or less, more preferably 20 or less, even more preferably 10 or less. When the beneficial ingredient has a logP value of 2 or more, the encapsulation rate of the beneficial ingredient in component (A) is improved. Here, the same applies when the beneficial ingredient is a fragrance composition containing multiple fragrances, and when the fragrance composition has a logP value of 2 or more, the encapsulation rate of the fragrance composition in component (A) can be improved. Here, the logP value is a coefficient indicating the affinity of an organic compound to water and 1-octanol. The 1-octanol / water partition coefficient P is the ratio of the equilibrium concentrations of a compound in each solvent when a trace amount of the compound is dissolved as a solute in a solvent consisting of two liquid phases, 1-octanol and water, and reaches distribution equilibrium, and is generally expressed in the form of their logarithm logP to the base 10. Nowadays, the value of "calculated logP (sometimes called ClogP)" 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 is widely used, and the ClogP value is also used in the present invention when selecting a compound.

[0070] In the present invention, the ClogP value is calculated using software EPI Suite (registered trademark; The Estimation Programs Interface for Windows version 4.11) jointly developed by the U.S. Environmental Protection Agency and Syracuse, Inc. In the case of a fragrance composition containing multiple fragrances, the CLogP value of the fragrance composition can be calculated by multiplying the CLogP value of each beneficial ingredient by its volume ratio in the beneficial agent composition and calculating the sum of the results.

[0071] From the viewpoint of the retention of the beneficial ingredient, the oil-water interfacial tension is preferably 7 mN / m or more, more preferably 10 mN / m or more, and even more preferably 13 mN / m or more at 25° C. The oil-water interfacial tension of the beneficial ingredient can be measured, for example, by a contact angle meter DropMaster DM-501 (manufactured by Kyowa Interface Science Co., Ltd.).

[0072] In the present invention, from the viewpoint of increasing the encapsulation rate of the beneficial ingredient in the capsule, improving the long-term retention, and allowing the capsule containing the beneficial ingredient to be adsorbed to the textile product and then efficiently released, the beneficial ingredient may be encapsulated as a beneficial agent composition containing one or more selected from a solvent, a diluent, and a dispersion medium, and is particularly preferred when the beneficial ingredient is a bactericide and an ultraviolet absorber. Also, when a fragrance is used as the beneficial ingredient, for example, a solvent, a diluent, and a dispersion medium may not be used.

[0073] The solvent, diluent and dispersion medium are preferably at least one selected from alcohols, glycol ethers, diols, esters and hydrocarbon solvents. The alcohols are preferably at least one selected from aliphatic alcohols having 3 to 18 carbon atoms, specifically propanol, 2-propanol, hexanol, pentanol, 3-pentanol, butanol, sec-butyl alcohol, tert-butyl alcohol, cyclopentanol, heptanol, octanol, decanol, dodecanol, tetradecanol, hexadecanol, and octadecanol.

[0074] As the glycol ether, a compound represented by the following general formula (1) is preferable. R 1 O-(R 2 O) n -H (1) (In the formula, R 1 is a hydrocarbon group having 1 to 8 carbon atoms, R 2 is an alkylene group having 2 or 3 carbon atoms, and n is an integer of 1 to 4. R is a highly effective fungicide. 1 is preferably an alkyl or alkenyl group having 3 to 6 carbon atoms, and n is preferably 3 or less, more preferably 2 or less.

[0075] Specific examples include one or more selected from 2-ethylhexyl glycol, hexyl glycol, hexyl diglycol, butyl propylene diglycol, butyl propylene glycol, propyl propylene diglycol, butyl glycol, propyl propylene glycol, butyl diglycol, 2-tert-butoxyethanol, isobutyl diglycol, methyl propylene glycol, and methyl glycol.

[0076] The diol is preferably a compound represented by the following general formula (2). R 3 -CH(OH)-(CH 2 ) q -CH 2 OH(2) (In the formula, R 3 is a hydrogen atom, an aliphatic hydrocarbon group having 1 to 8 carbon atoms, or R 4 O and R 4 is an aliphatic hydrocarbon group having 1 to 8 carbon atoms, and q is 0 or an integer of 1 to 6, provided that the total number of carbon atoms in the compound is 4 to 10.

[0077] Specific examples include one or more selected from 1,2-hexanediol, 1,2-pentanediol, propylene glycol, 1,6-hexanediol, 1,2-butanediol, 1,4-butanediol, 1,3-butanediol, 1,5-pentanediol, 1,2-octanediol, pentyl glyceryl ether, and 1,8-octanediol.

[0078] The esters are preferably compounds represented by the following formula (3). R 5 COOR 6 (3) (In the formula, R 5 is a hydrocarbon group having 6 to 20 carbon atoms, R 6 is a hydrocarbon group having 1 to 8 carbon atoms.

[0079] Specific examples include benzyl benzoate, methyl palmitate, ethyl palmitate, isopropyl palmitate, methyl myristate, ethyl myristate, and isopropyl myristate. Also included are polyvalent carboxylates such as diethyl phthalate.

[0080] Examples of the hydrocarbon solvent include linear aliphatic hydrocarbons such as octane, nonane, decane, and dodecane; branched aliphatic hydrocarbons such as terpene hydrocarbons, squalene, and squalane; cyclic aliphatic hydrocarbons such as ethylcyclohexane, decalin, and methyldecalin; and aromatic hydrocarbons such as toluene, tetralin, and 1-methylnaphthalene. Examples of commercially available hydrocarbon mixtures include kerosene, light oil, liquid paraffin, and isoparaffin. Furthermore, oils and fats can also be used.

[0081] In the present invention, the beneficial agent composition can be prepared by dissolving, emulsifying, or dispersing beneficial ingredients selected from fragrance compounds, fragrance precursors, germicides, and ultraviolet absorbers in the above-mentioned diluents and solvents, and the content of the beneficial ingredient in the beneficial agent composition can be 0.1% by mass or more and 100% by mass or less from the viewpoint of stability and adsorption. The content of the solvent and diluent in the beneficial agent can be 0% by mass or more and 99.9% by mass or less.

[0082] When the beneficial ingredient is a compound selected from a bactericide and an ultraviolet absorber, the content of the beneficial ingredient in the beneficial ingredient composition is preferably 0.1 to 50% by mass, preferably 0.2 to 30% by mass, from the viewpoint of stability and adsorption, in order to increase the encapsulation rate in the capsule, improve long-term retention, and allow the capsule containing the beneficial ingredient to be adsorbed to the textile product and then efficiently release the beneficial ingredient. The content of the solvent and diluent in the beneficial ingredient composition can be 50 to 99.9% by mass, preferably 30 to 99.8% by mass.

[0083] 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 shell and the second shell of the silica capsule can be measured by observation with a transmission electron microscope (TEM). Specifically, the thickness of the first shell and the second shell is measured on a photograph under observation with a transmission electron microscope. This operation is performed by changing the field of view five times. The distribution of the average thickness of the first shell and the second shell is obtained from the obtained data. The magnification of the transmission electron microscope is approximately 10,000 times or more and 100,000 times or less, but is appropriately adjusted depending on the size of the silica capsule. Here, as the transmission electron microscope (TEM), for example, the product name "JEM-2100" (manufactured by JEOL Ltd.) can be used.

[0084] The median diameter D of the silica capsule according to the present invention 50 From the viewpoint of improving the long-term retention and improving the dispersion stability of the silica capsule, the average 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 retention of the silica capsule, the average 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. The silica capsules of component (A) may be partially aggregated to the extent that this does not impair the release of the fragrance.

[0085] The proportion of the benefit agent composition in component (A) relative to the total of the benefit agent composition and the silica capsules may be, for example, 75% by weight or more, further 80% by weight or more, further 85% by weight or more, and 99% by weight or less, further 98% by weight or less, further 97% by weight or less.

[0086] The textile treatment composition of the present invention contains the benefit agent composition in 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 3% by mass or less, more preferably 1.5% by mass or less, even more preferably 1% by mass or less.

[0087] <(B) component> Component (B) is silicic acid and / or a silicate, or a compound that produces silicic acid and / or a silicate in water. In the present invention, the (B) component is allowed to coexist with the (A) component in the textile product treatment composition and adjusted to a specific pH, thereby increasing the adsorption rate of the (A) component onto the textile product even when a stored textile product treatment composition is used. The silicic acid and / or silicate may be represented by the following general formula (B1): M 2 O nSiO 2 mH 2 O (B1) In the formula, M is an atom selected from an alkali metal atom and a hydrogen atom, n is a number from 1.0 to 4.0, and m is a number from 5.0 to 50.0.

[0088] In the general formula (B1), examples of the alkali metal atom for M include a sodium atom and a potassium atom.

[0089] In the general formula (B1), n ​​is preferably a number from 1.8 to 4.0 in terms of the adsorption rate of the beneficial ingredient to the textile product, and m is preferably a number from 10.0 to 48.0.

[0090] Specific examples of the compound (B1) include the compounds shown in the table below. [Table 1]

[0091] From the viewpoint of the adsorption rate of beneficial ingredients to textile products, (B1) is preferably sodium silicate (sodium silicate). For example, commercially available sodium silicate such as No. 1 sodium silicate, No. 2 sodium silicate, No. 3 sodium silicate, No. 4 sodium silicate, and No. 5 sodium silicate shown in Table 1 can be used.

[0092] The compound (B) that generates silicic acid and / or a silicate in water is represented by the following general formula (B2): Si(OR a ) 4-p R b p (B2) [In the formula, R a and R b are each independently an alkyl group having 1 to 6 carbon atoms, and p is 0 or 1.

[0093] R a Specific examples of the alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a 1-methylpropyl group, a pentyl group, a hexyl group, and a cyclohexyl group, with a methyl group or an ethyl group being preferred.

[0094] R b Specific examples of the alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a 1-methylpropyl group, a pentyl group, a hexyl group, and a cyclohexyl group, with a methyl group, an ethyl group, or a propyl group being preferred.

[0095] p is preferably 0, and the compound (B2) is preferably tetraethoxysilane from the viewpoints of the adsorption rate of the beneficial ingredient to the textile product and easy availability.

[0096] From the viewpoint of the adsorption rate of the beneficial ingredient to the textile product, the composition of the present invention may contain component (B) in an amount of preferably 0.001 mass % or more, more preferably 0.003 mass % or more, even more preferably 0.005 mass % or more, and preferably 1.0 mass % or less, more preferably 0.1 mass % or less, even more preferably 0.08 mass % or less, and even more preferably 0.06 mass % or less.

[0097] In the present invention, the content of the component (B) is determined based on the amount of silicon dioxide (SiO 2 ) is calculated by the method described below. The composition is filtered through a 0.2 μm membrane filter. 5 g of the sample is precisely weighed into a platinum crucible and incinerated, then 1 g of an alkali flux (sodium carbonate:boric acid = 1:0.4 mass ratio) is added and melted in an electric furnace, then ultrapure water and 5 mL of 6N hydrochloric acid are added to dissolve, and after cooling, the volume is adjusted to a constant value in a 50 mL polymeasuring flask. The salt dissolved in the dough is analyzed by ICP emission spectrometry using a Thermo Fisher Scientific iCAP6500Duo. 2 The calibration curve is made by diluting the silicon standard solution (1000 ppm) and adding the same amount of alkaline flux to the sample.

[0098] <(C) component> From the viewpoints of dispersion stability of component (A) in the composition, adsorption to fabrics, flexibility when used as a fabric softener, and high-temperature storage stability, component (C) is preferably a component selected from the group consisting of component (C1) consisting of a tertiary amine represented by the following general formula (c1) and its acid salt, and component (C2) consisting of a quaternary amine of general formula (c1). [ka] [In the formula, R 1c R is a hydrocarbon group having a total of 12 to 28 carbon atoms which may be interrupted by one or more groups selected from an ester group, an amide group, and an ether group; 2c Groups and R 3c The groups are each independently selected from a hydrocarbon group having a total of 12 to 28 carbon atoms, which may be interrupted by one or more groups selected from an ester group, an amide group, and an ether group, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl ether alkylene group having 4 to 6 carbon atoms.

[0099] In the general formula (c1), R 1c The group is preferably a hydrocarbon group having a total of 12 or more, preferably 14 or more, and 28 or less, preferably 26 or less carbon atoms, which is interrupted by one or more groups selected from an ester group, an amide group, and an ether group. In this case, the hydrocarbon group may be either saturated or unsaturated. That is, the preferred R b1 Examples of the group include the groups shown in (i) and (ii) below. (i) A saturated hydrocarbon group having a total of 12 or more, preferably 14 or more, and 28 or less, preferably 26 or less, carbon atoms interrupted by one or more groups selected from the group consisting of an ester group, an amide group, and an ether group. (ii) An unsaturated hydrocarbon group having a total of 12 or more, preferably 14 or more, carbon atoms and 28 or less, preferably 26 or less, double bonds interrupted by one or more groups selected from the group consisting of an ester group, an amide group, and an ether group. (iii) A mixture of the above groups (i) and (ii).

[0100] Also, the preferred R 2c Groups and R 3c Examples of the groups are independently selected from a hydrocarbon group having a total of 12 to 28 carbon atoms which may be interrupted by one or more groups selected from an ester group, an amide group, and an ether group, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and a hydroxyalkyl ether alkylene group having 4 to 6 carbon atoms.

[0101] The tertiary amine of general formula (c1) can be obtained, for example, by subjecting a fatty acid or a fatty acid lower alkyl ester having a total of 12 to 28 carbon atoms to an esterification reaction, an amidation reaction, or an ester exchange reaction between an amine such as an alkanolamine having an alkanol group having 2 or 3 carbon atoms or an aminoalkylamine having an alkylamine group having 2 or 3 carbon atoms, or by reacting the alkanolamine with an alkylene oxide having 2 or 3 carbon atoms and then carrying out the above reaction.

[0102] The fatty acid or fatty acid lower alkyl ester is preferably a fatty acid having a total of 12 to 28 carbon atoms or a lower alkyl ester thereof (alkyl group having 1 to 3 carbon atoms), and one or a mixture of two or more types can be used. The fatty acid or fatty acid lower alkyl ester may be, as necessary, a fatty acid known in the Oil Chemistry Handbook (4th edition, Japan Oil Chemists' Society, Maruzen Co., Ltd., November 20, 2001) or the like, and may be a single fatty acid or a fatty acid mixture containing fatty acids of different chain lengths or unsaturated fatty acids derived from natural fats and oils such as coconut oil, palm oil, and beef tallow. Mixtures of different types of fatty acids, for example fatty acids derived from natural fats and oils, may be those obtained by hydrogenation reaction of unsaturated bonds, isomerization reaction of unsaturated bonds, or by distillation operation, adjustment of alkyl chain length by bottom cut, top cut, or by mixing a plurality of fatty acids.

[0103] The aminoalkylamine is preferably an amine having at least two or more kinds of amino groups selected from a primary amino group, a secondary amino group, and a tertiary amino group in the molecule, and the alkanolamine is preferably an amine having a primary to tertiary amino groups, and a hydroxyl group is essential in the molecule. More specific examples include, but are not limited to, dialkylmonoalkanolamines (preferably dimethylmonoethanolamine or dimethylmonopropanolamine), monoalkyldialkanolamines (preferably methyldiethanolamine or methyldipropanolamine), or trialkanolamines (preferably triethanolamine or tripropanolamine), or di(aminoalkyl)alkylamines (e.g., N-methyl-N,N-di(3-aminopropyl)amine), dialkylaminoalkylamines (e.g., N,N-dimethyl-N-(3-aminopropyl)amine), and alkylaminopropylmonoalkylalkanolamines (preferably, N-methyl-N-(2-hydroxyethyl)-N-(3-aminopropyl)amine). More preferred are N-methyldiethanolamine, triethanolamine, N-methyl-N-(2-hydroxyethyl)-N-(3-aminopropyl)amine, N,N-dimethyl-N-(3-aminopropyl)amine, and N,N-dimethyl-N-(2-hydroxyethyl)amine.

[0104] Examples of the acid salt of the tertiary amine represented by the general formula (c1) include acid salts neutralized with inorganic acids and organic acids. Preferred inorganic acids are hydrochloric acid, sulfuric acid, and phosphoric acid, and preferred organic acids are monovalent or polyvalent carboxylic acids having 1 to 10 carbon atoms, monovalent or polyvalent sulfonic acids having 1 to 20 carbon atoms, alkyl sulfates having 6 to 36 carbon atoms, and polyoxyalkylene alkyl (alkyl group having 6 to 36 carbon atoms) sulfates. More preferred are methyl sulfate, ethyl sulfate, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, citric acid, benzoic acid, salicylic acid, alkyl sulfates having 12 to 36 carbon atoms, and polyoxyalkylene alkyl (alkyl group having 12 to 36 carbon atoms) sulfates.

[0105] The quaternary amine represented by the general formula (c1) may be a compound obtained by quaternizing the tertiary amine represented by the general formula (c1) with an alkylating agent such as an alkyl halide, a dialkyl sulfate, or an alkylene oxide. The alkyl halide is preferably methyl chloride, the dialkyl sulfate is preferably dimethyl sulfate or diethyl sulfate, and the alkylene oxide is preferably ethylene oxide. The quaternary reaction using the alkylating agent can be carried out in the presence of a solvent (e.g., ethanol), but can also be carried out without a solvent from the viewpoint of maintaining the odor and storage stability of the synthesized product and / or suppressing the generation of impurities.

[0106] The component (C) may be one or more selected from the following components (C1a) and (C2a), which are particularly preferred from the viewpoint of improving the softening of textile products when the textile product treatment composition of the present invention is used as a liquid fabric softener composition. Component (C1a): a tertiary amine compound represented by the following general formula (c2) and an acid salt thereof. Component (C2a): A quaternary amine compound represented by the following general formula (c2). [R 11c -C(=O)-O-(C p H 2p O) r -C q H 2q ] m N(R 12c ) 3-m (c2) [In the formula, R 11c is a hydrocarbon group having 11 to 23 carbon atoms, R 12c 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 from 1 to 3, p and q are each independently a number from 2 to 3, and r is a number from 0 to 1. 11c , R 12cWhen there are multiple p, q, and r, they may be the same or different. 11c -C(=O)-O-(C p H 2p O) r -C q H 2q The total number of carbon atoms is 12 to 28.

[0107] R in general formula (c2) 11c has 11 or more and 23 or less carbon atoms, and from the viewpoint of improving the softness of textile products, a non-cyclic hydrocarbon group having 13 or more and 21 or less carbon atoms is preferable. R 11c Specific examples of the alkyl group include linear or branched alkyl groups having 13 to 21 carbon atoms, and linear or branched alkenyl groups having 13 to 21 carbon atoms, and include groups selected from linear alkyl groups having 13 to 21 carbon atoms and linear alkenyl groups having 13 to 21 carbon atoms.

[0108] The component (C1a) is R in the general formula (c2). 11c It is preferable that R is a mixture of compounds having different substituents. 11c More preferably, the alkyl group is a mixture of compounds having an alkyl group and a compound having an alkenyl group. The ratio of the alkyl group-containing compound to the alkenyl group-containing compound can be determined by the composition of the fatty acid or fatty acid ester used as the raw material. The amount of the alkyl group and the amount of the alkenyl group can be adjusted by hydrogenation of the raw material having an alkenyl group, or by addition of R 11c This can be achieved by hydrogenation of a compound in which is an alkenyl group.

[0109] 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.

[0110] In the general formula (c2), p and q are each a number of 2 or 3. From the viewpoint of water absorbency retention of the treated textile product, p is preferably 2. From the viewpoint of ease of production, q is preferably 2. Furthermore, r is a number of 0 or 1, preferably 0, from the viewpoint of softening the textile product. Furthermore, R 12c From the viewpoint of water absorption, HO-(C p H 2p O) r -C q H 2q Group, and further HO-C 2 H 4 Further, m is preferably a group ranging from 1 to 2 in terms of water absorbency.

[0111] As described above, the component (C1a) is a tertiary amine compound represented by the general formula (c2) or an acid salt thereof. Depending on the pH of the textile product treatment composition of the present invention, almost all of the component (C1a) may be present in the composition in the form of an acid salt. When the tertiary amine compound constituting the component (C1a) exists as an acid salt, the acid may be an inorganic acid or an organic acid. Examples of inorganic acids include hydrochloric acid and sulfuric acid. Examples of organic acids include alkylsulfuric acids having 1 to 3 carbon atoms, monovalent or polyvalent carboxylic acids having 1 to 10 carbon atoms, and monovalent or polyvalent sulfonic acids having 1 to 20 carbon atoms. Specific examples of organic acids include methylsulfuric acid, ethylsulfuric acid, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, citric acid, benzoic acid, and salicylic acid.

[0112] The method for producing the amine compound represented by general formula (c2), which is component (C1a), is not particularly limited. For example, the compound can be obtained by an esterification reaction between an alkanolamine compound represented by the following general formula (c3) and a fatty acid, or a transesterification reaction between an alkanolamine compound represented by general formula (c3) and a fatty acid ester. [HO-(C p H 2p O) r -C q H2q ] n N(R 13c ) 3-n (c3) [In the formula, R 13c is a group selected from hydrocarbon groups having 1 to 3 carbon atoms, n is a number of 1 to 3, and p, q, and r have the same meanings as in the general formula (c2). 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.

[0113] As an example of the esterification reaction, for example, the method described in JP-A-2000-510171, pages 8 to 9 can be applied. As an example of the transesterification reaction, for example, the method described in JP-A-7-138211, paragraphs

[0013] to

[0016] can be applied.

[0114] The component (C2a) is a quaternary amine compound represented by the general formula (c2) and can be obtained by a quaternization reaction using a tertiary amine compound represented by the general formula (c2) and an alkylating agent.

[0115] The textile product treatment composition of the present invention contains component (C) in an amount of 0.1% by mass or more, preferably 1% by mass or more, more preferably 3% by mass or more, even more preferably 5% by mass or more, and preferably 20% by mass or less, more preferably 18% by mass or less, even more preferably 15% by mass or less.

[0116] The textile treatment composition of the present invention is characterized in that the content (wt%) of the benefit agent composition in component (A) and the SiO 2From the viewpoint of the adsorption rate of the beneficial ingredient to the textile product, (B) / (A), which is the ratio of the content (mass%) of the beneficial ingredient as the component (A) to the content (mass%) of the beneficial ingredient as the component (B) / (A), is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, still more preferably 0.04 or more, and preferably 10 or less, more preferably 5 or less, preferably 2 or less, more preferably 1.5 or less, still more preferably 1 or less, and still more preferably 0.9 or less. In addition, when the benefit agent composition does not contain a solvent, diluent, or dispersion medium, the content of the benefit agent composition in component (A) is equal to the content of the beneficial ingredient.

[0117] In the textile treatment composition of the present invention, the ratio (C) / (A) of the content (mass%) of the benefit agent composition in component (A) to the content (mass%) of component (C) is, from the viewpoint of the adsorption rate of the beneficial ingredient on the textile product, preferably 5 or more, more preferably 10 or more, more preferably 15 or more, and preferably 1000 or less, more preferably 500 or less, more preferably 300 or less, more preferably 200 or less, more preferably 100 or less, even more preferably 70 or less, and even more preferably 50 or less. In addition, when the benefit agent composition does not contain a solvent, diluent, or dispersion medium, the content of the benefit agent composition in component (A) is equal to the content of the beneficial ingredient.

[0118] <(D) component> The textile product treatment composition of the present invention may contain, as component (D), a beneficial ingredient other than the beneficial ingredient encapsulated in component (A). In the present invention, beneficial ingredients that are not encapsulated in microcapsules are treated as component (D).

[0119] There are no particular limitations on the beneficial ingredient that can be used as component (D), and the beneficial ingredient may be the same as the beneficial ingredient contained in component (A), or it may be a different beneficial ingredient. The beneficial ingredients that can be used as component (D) are as described above. Examples of the beneficial ingredients include the fragrance compounds described in "Fragrances and Fragrance Blending Basics, edited by Nakajima Mototaka, published by Sangyo Tosho Co., Ltd., 4th printing, April 20, 2005" and the fragrance compounds known to be blended in fabric softeners and the like through patent documents, as well as fragrance ingredients prepared by fragrance manufacturers themselves or fragrance compositions prepared by fragrance manufacturers.

[0120] For example, the (D) component includes β-ionone (3.7), γ-undecalactone (3.8), γ-nonalactone (2.8), γ-methylionone (4.0), [3aR-(3aα,5aβ,9aα,9bβ)]dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan (Kao Corporation trade name Ambroxan) (5.3), 1-(1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethan-1-one (IFF Corporation trade name Iso-E-Super) (4.7), ethyl vanillin (1.8), ethylene brassylate (4.6), eugenol (3.0), 1,2,3,5,6,7-hexahydro-1,1,2,3,3-pentamethyl-4H-inden-4-one (IFF trade name Cashmeran) (4.0), coumarin (1.5), geraniol (3.5), o-tert-butylcyclohexyl acetate (4.1), citronellyl acetate (4.2), dimethylbenzylcarbinyl acetate (2.8), 2-methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol (Kao trade name Sandal mysore core) (3.9), methyl dihydrojasmonate (2.4), dihydromyrcenol (3.0), dimethyltetrahydrobenzaldehyde (2.9), [1-methyl-2-(1,2,2-trimethylbicyclo[3.1.0]hex-3-ylmethyl)cyclopropyl]methanol (Givaudan) (4.7), Neroline Yara Yara (3.2), Habanolide (Firmenich) (6.2), Tricyclo[5.2.1.0] 2,6] Ethyl decane-2-carboxylate (Kao Corporation trade name Flutate) (3.4), Peonyl (Givaudan) (4.0), α-hexylcinnamaldehyde (4.9), heliotropin (1.1), methyl β-naphthyl ketone (2.8), methyl anthranilate (2.0), raspberry ketone (1.1), limonene (4.4), and p-tert-butyl-α-methylhydrocinnamic aldehyde (Givaudan trade name Lilial) (3.9). The numbers in parentheses are logP values.

[0121] The textile product treatment composition of the present invention may contain a diluent or a retaining agent for the beneficial ingredient (D), which is component (D). Examples of the diluent and retaining agent include 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 the (D) component and 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 beneficial ingredients encapsulated in the microcapsules of the (A) component.

[0122] The textile product treatment composition of the present invention may contain a diluent or retainer for the beneficial ingredient (D). The diluent and retainer may be the same as the solvent, diluent and dispersion medium contained in the beneficial ingredient composition (A). When a diluent and a retaining agent are used, the amount of the diluent and the retaining agent relative to the total amount of the component (D) and the diluent and the retaining agent is preferably from 0% by mass to 20% by mass.

[0123] The use of component (D) in combination with component (A) allows for a more flexible functional design than ever before. For example, when a fragrance is used as a beneficial component, a fresh and rich scent can be imparted to a textile product by treating the textile product with the textile product treatment composition of the present invention, which contains component (A) and component (D) in combination.

[0124] When the textile product treatment composition of the present invention contains component (D), its content in the composition is preferably 0.01 mass% or more, more preferably 0.1 mass% or more, even more preferably 0.3 mass% or more, and even more preferably 0.5 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 with other beneficial components, it is preferably 2.5 mass% or less, more preferably 2 mass% or less, and even more preferably 1.8 mass% or less. The content of component (D) in the textile product treatment composition can be adjusted according to the product.

[0125] Furthermore, when the textile product treatment composition of the present invention contains component (D), the total content of components (A) and (D) is, from the viewpoint of imparting sufficient beneficial component functionality to textile products, preferably at least 0.1 mass%, more preferably at least 0.3 mass%, and even more preferably at least 0.5 mass%, and from the viewpoint of storage stability and scent balance with other functional agent components, is preferably at most 2.8 mass%, more preferably at most 2.5 mass%, and even more preferably at most 2 mass%.

[0126] <(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.

[0127] The component (E) is preferably at least one selected from nonionic surfactants represented by the following general formula (e4). R 1e -A-[(R 2e O) p1 -R 3e ] q1 (e4) [In the formula, R 1e is an alkyl or alkenyl group having 8 or more carbon atoms, preferably 10 or more, and 24 or less, preferably 18 or less, more preferably 16 or less; R 2eis an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group; 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.

[0128] Specific examples of the compound of general formula (e4) include compounds represented by the following formulae (4a) to (4d). R 1e -O-(C 2 H 4 O) p11 -H (4a) [In the formula, R 1e has the above meaning. p11 is a number of 8 or more, preferably 10 or more, and 100 or less, preferably 60 or less. R 1e -O-(C 2 H 4 O) s / (C 3 H 6 O) t -H (4b) [In the formula, R 1e has the above meaning. s and t are each independently a number of 2 or more, preferably 5 or more and 40 or less, (C 2 H 4 O) and (C 3 H 6 O) may be a random or block adduct. R 1e -O-(C 2 H 4 O) x1 -(C 3 H 6 O) y -(C 2 H 4 O) x2 -H (4c) [In the formula, R 1e 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, (C 2 H 4 O) and (C 3 H 6 O) and (C 2 H 4 O) is a block adduct.

[0129] A compound of general formula (4d): [ka] [In the formula, R 1e has the above meaning. E is -N< or -CON<, u and v are each independently a number from 0 to 40, and u+v is a number from 5 to 60, preferably 40. 4e , R 5e are each independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.

[0130] When the textile product treatment composition of the present invention contains component (E), the content thereof in the composition is preferably 1 mass % or more, more preferably 1.5 mass % or more, even more preferably 2 mass % or more, and preferably 5 mass % or less, more preferably 4.5 mass % or less, even more preferably 4 mass % or less.

[0131] <(F) Component> The textile product treatment composition of the present invention may contain an inorganic salt as the 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 preferable. When the textile product treatment composition of the present invention contains component (F), the content thereof 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% 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.

[0132] <(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 the 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 valences and a fatty acid having 12 to 22 carbon atoms. More specifically, it is an ester compound of a polyhydric alcohol having a carbon number of preferably 3 or more, more preferably 4 or more, and preferably 6 or less, and preferably having a valence of 3 or more, more preferably 4 or more, and preferably 6 or less, and a fatty acid having a carbon number of 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. 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 a fatty acid having 16 to 22 carbon atoms (hereinafter also referred to as "pentaerythritol fatty acid esters"), and ester compounds of sorbitan and a fatty acid having 16 to 22 carbon atoms (hereinafter also referred to as "sorbitan fatty acid esters").

[0133] 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.

[0134] <(H) component> The textile product treatment composition of the present invention may contain an amphoteric surfactant as component (H).

[0135] There are no particular limitations on the component (H) so long as it can generally be incorporated into liquid fabric softener compositions and the like. Examples include alkyl (carbon number 12 to 22) amidopropyl carbobetaine, alkyl (carbon number 12 to 22) amidopropyl sulfobetaine, alkyl (carbon number 12 to 22) carbobetaine, alkyl (carbon number 12 to 22) sulfobetaine, alkyl (carbon number 12 to 22) dimethylamine oxide, and the like.

[0136] When the textile product treatment composition of the present invention contains component (H), the content of component (H) in the composition is, from the viewpoints of reducing the viscosity of the textile product treatment composition and improving the bactericidal properties, preferably at least 0.01 mass %, more preferably at least 0.05 mass %, even more preferably at least 0.1 mass %, and still more preferably at least 0.5 mass %, and from the viewpoints of preventing a decrease in storage stability and softening effect, preferably at most 4.0 mass %, more preferably at most 3.5 mass %, and even more preferably at most 2.5 mass %.

[0137] <Component (I)> The textile product 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 the silicone compound that dissolves in 1 L of ion-exchanged water at 20° C. is 1 g or less. Specific examples of the 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.

[0138] The 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. The component (I) has a weight average molecular weight of preferably 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. The component (I) preferably has a viscosity at 25°C of 2 mm 2 / s or more, preferably 500 mm 2 / s or more, and more preferably 1,000 mm 2 / s or more, and preferably 1,000,000 mm 2The weight average molecular weight of component (I) is a value measured by gel permeation chromatography using polystyrene as the standard substance.

[0139] 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.

[0140] 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 mass % or more, more preferably 0.5 mass % or more, from the viewpoint of imparting a refreshing feeling to the finished textile product, and is preferably 5 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 mass % or more, more preferably 0.005 mass % or more, even more preferably 0.01 mass % or more, and is preferably 1.0 mass % or less, more preferably 0.5 mass % or less, even more preferably 0.1 mass % or less.

[0141] <(J) component> The textile product treatment composition of the present invention may contain a pH adjuster such as an acid or an alkali from the viewpoint of stably preserving the beneficial ingredient (A) in the capsule for a long period of time or from the viewpoint of suppressing hydrolysis of the ingredient (B) in the product. The acid may be an inorganic acid or an organic acid, and specific examples of the inorganic acid include hydrochloric acid and sulfuric acid.Specific examples of the organic acid include monovalent or polyvalent carboxylic acids having 1 to 10 carbon atoms, monovalent or polyvalent sulfonic acids having 1 to 20 carbon atoms, and alkyl sulfuric acids having 1 to 3 carbon atoms.More specific examples include methyl sulfuric acid, ethyl sulfuric acid, p-toluenesulfonic acid, (o-, m-, p-)xylenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, glycolic acid, ethylenediaminetetraacetic acid, citric acid, benzoic acid, and salicylic acid. Examples of the alkali include sodium hydroxide, potassium hydroxide, ammonia and its derivatives, amine salts such as monoethanolamine, diethanolamine, and triethanolamine, sodium carbonate, and potassium carbonate. These acids and alkalis may be used in combination.

[0142] <(K) component> The textile product treatment composition of the present invention may contain a fatty acid having 12 or more and 22 or less carbon atoms, from the viewpoint of improving the softness of textile products. The fatty acid of the component (K) may be contained as an unreacted product during the synthesis of the component (B) or as a decomposition product of the component (B). As component (K), a saturated or unsaturated fatty acid having 12 to 22 carbon atoms is 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 more preferably fatty acids selected from palmitic acid, stearic acid, oleic acid, and linoleic acid.

[0143] 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 mass % or more, more preferably 0.05 mass % or more, even more preferably 0.1 mass % or more, and preferably 0.3 mass % or less, more preferably 0.2 mass % or less, even more preferably 0.1 mass % or less.

[0144] <(L) component> From the viewpoint of storage stability and viscosity, the textile product treatment composition of the present invention may contain a water-soluble organic solvent as the component (L). Examples of the water-soluble organic solvent include typical water-soluble organic solvents used in textile product treatment compositions. The "water-soluble organic solvent" in component (L) refers to an organic solvent that dissolves in an amount of 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.

[0145] 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 the 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 mass % or less, more preferably 10 mass % or less, even more preferably 5 mass % or less, and preferably 0.3 mass % or more, more preferably 0.5 mass % or more, even more preferably 1.0 mass % or more.

[0146] <(M) component> In the textile product treatment composition of the present invention, a chelating agent is preferably used as the 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. The component (M) in the present invention may also function as the acid agent.

[0147] Specific examples of the chelating agent 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.

[0148] When the textile product treatment composition of the present invention contains the component (M), the content of the component (M) in the composition is preferably 0.001 mass% or more, more preferably 0.005 mass% or more, and preferably 2 mass% or less, more preferably 1.5 mass% or less, even more preferably 1.0 mass% or less, still more preferably 0.5 mass% or less, and even more preferably 0.1 mass% or less.

[0149] <(N) Component> The textile treatment composition of the present invention may contain, as component (N), microcapsules encapsulating a benefit agent composition other than component (A) or a benefit agent composition. The (N) component, when used in combination with the (A) and (D) components, allows for greater freedom in the design of the benefit agent composition than ever before. For example, as the (N) component, a silicate ester compound as a sustained-release fragrance described in JP 2014-125685 A or an ester compound of an alcohol-based fragrance compound and an aliphatic monocarboxylic acid or aliphatic dicarboxylic acid as described in JP 8-502522 A can be used.

[0150] When the textile product treatment composition of the present invention contains component (N), the content of component (N) is preferably 0.15 mass% or more, more preferably 0.3 mass% or more, even more preferably 0.45 mass% or more, and preferably 0.65 mass% or less, more preferably 0.6 mass% or less, even more preferably 0.55 mass% or less.

[0151] When the textile product treatment composition of the present invention contains component (N), the total content of components (A), (D) and (N) is preferably 0.1 mass% or more, more preferably 0.3 mass% or more, even more preferably 0.5 mass% or more, and preferably 3.0 mass% or less, more preferably 2.5 mass% or less, even more preferably 2.0 mass% or less.

[0152] The content of component (N) is calculated based on the mass of the benefit agent composition encapsulated in the microcapsules of component (N), similar to that of component (A).

[0153] <(O) component> In the textile product treatment composition of the present invention, an antioxidant such as butylhydroxytoluene (BHT) can be used from the viewpoint of suppressing deterioration of the substrate, and dyes and pigments generally used in textile product treatment compositions can be used from the viewpoint of aesthetics and preventing coloration 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. From the viewpoint of the storage stability and quality stability of the textile product treatment composition, the component (O) may be contained in an amount of 0.0005% by mass or more and 10% by mass or less.

[0154] <Other ingredients, etc.> 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 water in an amount of 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.

[0155] 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 product treatment composition of the present invention can be used for softening treatment of textile products. For example, the textile product treatment composition of the present invention may be a textile product softener composition, and further a liquid textile product softener composition.

[0156] <Method of manufacturing the textile product treatment composition> The order in which components (A), (B), (C), and water are mixed does not matter. Component (A) may be added to a mixture of component (B) and water, and then component (C) may be added, or component (C) may be added to a mixture of component (B) and water, and then component (A) may be added. The timing of addition of the acid or alkali agent used to adjust the pH does not matter either. When component (A) is added, it may be diluted with water about 2 to 8 times before addition in order to prevent the capsules from clumping together after mixing.

[0157] <Method of processing textile products> The present invention provides a method for treating a textile product, which comprises contacting the textile product with a treatment liquid obtained by mixing components (A), (B), (C) and water. The components (A), (B), and (C) used in the method for treating textile products of the present invention can be the components (A), (B), and (C) described in the textile product treatment composition of the present invention. The preferred embodiments of the components (A), (B), and (C) are also the same as those in the textile product treatment composition of the present invention. The matters described in the textile product treatment composition of the present invention can be appropriately applied to the method for treating textiles of the present invention.

[0158] The present invention provides a method for adsorbing a beneficial ingredient onto a textile product by contacting a textile product with a textile product treatment composition containing microcapsules [hereinafter referred to as component (A)] encapsulating a beneficial agent composition containing a beneficial ingredient, in which silicic acid and / or a silicate, or a compound that generates silicic acid and / or a silicate in water [hereinafter referred to as component (B)] is coexisted with the textile product treatment composition, and the textile product treatment composition has a pH of 2 or more and less than 8 at 30°C.

[0159] The coexistence of component (B) in a textile product treatment composition containing component (A) includes an embodiment in which component (B) is added to a textile product treatment composition that already contains component (A) to allow the coexistence of component (B). It may also include an embodiment in which component (B) is used as one of the components when producing a textile product treatment composition containing component (A) to allow the coexistence of component (B). In the method of contacting the composition with a textile product to adsorb the beneficial ingredient to the textile product, the composition can be directly contacted with the textile product, or the composition, the textile product, and water can be mixed to adsorb the (A) component to the textile product.

[0160] In the method for treating a textile product of the present invention, the treatment liquid is preferably obtained by mixing the textile product treating agent composition of the present invention with water. The present invention provides a method for treating textile products with a treatment liquid obtained by mixing the textile product treatment composition with water after storing the textile product treatment composition of the present invention, without reducing the adsorption rate of beneficial ingredients. It is preferable to dissolve the textile product treatment composition in the treatment liquid at 0.001% by mass or more, preferably 0.005% by mass or more, and 1% by mass or less, preferably 0.5% by mass. In addition, the temperature of the treatment liquid is preferably 5°C or more, preferably 10°C or more, and 80°C or less, preferably 60°C or less, more preferably 40°C or less. After treatment, normal dehydration and drying can be carried out. EXAMPLES

[0161] The benefit ingredients used were fragrance compounds, germicides and UV absorbers.

[0162] <Benefit agent composition containing a fragrance compound as a beneficial ingredient> Fragrance composition 1 containing the compounds shown in Table 2 in the amounts shown was used as the fragrance compound encapsulated in the microcapsules. The beneficial ingredient contained in the benefit agent composition was only fragrance composition 1 in Table 2.

[0163] [Table 2]

[0164] <Component (A)> Silica capsule (A-1): Using the above-mentioned fragrance composition 1, silica capsule (A-1) was produced according to the following Production Example 1.

[0165] [Production Example 1: Production of (A-1)] (Process 1) 3.0 g of Coatamin 60W (trade name, manufactured by Kao Corporation, cetyltrimethylammonium chloride, active content 30% by mass) was diluted with 750 g of ion-exchanged water to obtain an aqueous phase component. An oil phase component prepared by mixing 200 g of the fragrance composition 1 having the blending ratio shown in Table 1 and 50 g of tetraethoxysilane (hereinafter also referred to as "TEOS") was added to this aqueous phase component, and the mixture was emulsified at a rotation speed of 8,500 rpm using a homomixer (manufactured by HsiangTai, model: HM-310, the same applies below) to obtain an emulsion. The median diameter D of the emulsified droplets at this time was 50 was 1.4 μm. The pH of the resulting emulsion was adjusted to 3.8 using a 1% aqueous sulfuric acid solution, and then transferred to a separable flask equipped with a stirring blade and a cooler. While maintaining the liquid temperature at 30°C, the mixture was stirred at 200 rpm for 24 hours to obtain an aqueous dispersion containing silica capsules (1) having a core made of fragrance composition 1 and a first shell made of silica.

[0166] (Process 2) While stirring the aqueous dispersion obtained in step 1 at a liquid temperature of 30°C, 21 g of TEOS was added dropwise over 420 minutes. After the addition, stirring was continued for an additional 17 hours, and then the mixture was cooled to form a second shell encapsulating the first shell, thereby obtaining an aqueous dispersion containing silica capsules (A-1) in which the fragrance composition 1 was encapsulated in amorphous silica. The median diameter D of the silica capsules (A-1) was 50 The median diameter D of the emulsion droplets and silica capsules (A) was 2.1 μm. 50was measured using a laser diffraction / scattering particle size distribution analyzer LA-960 (manufactured by Horiba, Ltd.). A flow cell was used for the measurement, the medium was water, and the refractive index was set to 1.40-0i. The emulsion or the aqueous dispersion containing silica capsules was added to the flow cell, and the measurement was performed at a concentration that showed a transmittance of approximately 90%, and the median diameter D 50 asked for. The thickness of the first shell was about 5 nm, and the thickness of the second shell was 5 to 30 nm.

[0167] <Beneficial agent composition containing a fungicide as a beneficial ingredient> A benefit agent composition was used that consisted of 10% by weight of the fungicide diclosan and 90% by weight of the fragrance compound α-hexylcinnamaldehyde. Silica capsules (A-2) containing the fungicide composition were prepared according to Preparation Example 1 above, except that the fragrance composition 1 was replaced with the benefit agent composition.

[0168] Beneficial agent composition containing UV absorber A benefit agent composition consisting of 1% by weight of 2-ethylhexyl paramethoxycinnamate as an ultraviolet absorber and 99% by weight of isopropyl myristate as a solvent was used. Silica capsules (A-3) containing the benefit agent composition were produced according to Production Example 1 above, except that fragrance composition 1 in Production Example 1 above was replaced with the benefit agent composition containing an ultraviolet absorber.

[0169] <(B) component> (B-1): No. 2 sodium silicate (manufactured by Fuji Chemical Co., Ltd.) shown in Table 1. The content of each component was quantified according to the "Japan Inorganic Chemicals Association Standard Sodium Silicate (Sodium Silicate)" and the results shown in Table 1 were obtained. (B-2): TEOS (Wacker).

[0170] <(C) component> Cationic surfactant (C-1): Cationic surfactant (C-1) was produced according to Production Example 2 below. [Production Example 2: Production of (C-1)] Triethanolamine and R of the composition shown in Table 1 C1COOH was used as the raw fatty acid.

[0171] [Table 3]

[0172] Triethanolamine and R C1 COOH was added in the reaction molar ratio (R C1 The esterification reaction was carried out at a ratio of 1.65 / 1 (COOH / triethanolamine) to obtain an esterification reaction product. C1 The COOH content was 5.0% by mass. Next, 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, and then ethanol was added. In this manner, a reaction product (C1) containing a quaternary ammonium salt compound (hereinafter referred to as (C1-1)) and a tertiary amine compound (hereinafter referred to as (C1-2)), which are the components (C), was produced.

[0173] The reaction product was analyzed by HPLC for the composition ratio of each component, and tetraoctylammonium bromide was used as an internal standard to quantify the product. As a result, the product was 76% by mass of (C1-1), 12% by mass of (C1-2), 10% by mass of ethanol, and 10% by mass of unreacted R. C1 It contained 2 mass% of COOH, a trace amount of triethanolamine quaternary salt, and other trace components. The contents of (C1-1) and (C1-2) in the obtained reaction product (C-1) were the amounts shown in Tables 4A and 4B. The quaternization rate calculated from the amounts of (C1-1) and (C1-2) produced was 86 mass %.

[0174] [Table 4A]

[0175] [Table 4B]

[0176] Cationic surfactant (C-2): Cationic surfactant (C-2) was produced according to Production Example 3 below. [Production Example 3: Production of (C-2)] Triethanolamine and R of the composition shown in Table 5 C2 COOH was used as the raw fatty acid.

[0177] [Table 5]

[0178] Triethanolamine and R C2 COOH was esterified at a molar ratio (fatty acid / triethanolamine) of 1.87 / 1 to obtain an esterification reaction product. C2 The COOH content was 1.0% by mass. Next, a quaternary 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, and then ethanol was added. In this manner, a reaction product (C2) containing a quaternary ammonium salt compound (hereinafter referred to as (C2-1)) and a tertiary amine compound (hereinafter referred to as (C2-2)), which is component (C), was produced.

[0179] The reaction product was analyzed by HPLC to determine the composition ratio of each component using tetraoctylammonium bromide as an internal standard. As a result, (C2-1) was 76% by mass, (C2-2) was 12% by mass, ethanol was 10% by mass, and R C2 It contained 2 mass% of COOH, a trace amount of triethanolamine quaternary salt and other trace components. The contents of (C2-1) and (C2-2) in the obtained reaction product (C2) were the amounts shown in Tables 6A and 6B. The quaternization rate calculated from the amounts of (C2-1) and (C2-2) produced was 80 mass %.

[0180] [Table 6A]

[0181] [Table 6B]

[0182] <(D) component> (D-1): Fragrance composition 1 in Table 2 was used without being encapsulated in microcapsules. (D-2): Fragrance composition 2 containing the compounds shown in Table 7 in the amounts shown was used.

[0183] [Table 7]

[0184] <(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 (4a), 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 is a primary carbon atom and p11 is 30. (E-2): A compound in which an average of 21 moles of ethylene oxide is added to lauryl alcohol That is, in general formula (4a), 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 is a primary carbon atom and p11 is 21.

[0185] <(F) Component> (F-1): Calcium chloride.

[0186] <Component (I)> (I-1): An aqueous emulsion of dimethylpolysiloxane produced in Production Example 4 below. [Production Example 4: Production 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 2300g of dimethylpolysiloxane was added to the emulsion (I-1) while applying high shear force, and the emulsion was stirred for 10 minutes at high shear force. After that, 30g of ion-exchanged water was added, followed by 2g of sodium polyoxyethylene lauryl ether sulfate with an average number of moles of 2 and 15g of polyoxyethylene myristyl ether with an average number of moles of 40. The emulsion was stirred for 30 minutes at high shear force, and then 248g of water was added and stirred to obtain an aqueous emulsion of dimethylpolysiloxane (I-1). The volume average particle size of the emulsified particles in (I-1) was 500nm. The content of dimethylpolysiloxane in (I-1) was 50% by mass. The volume average particle size was measured by dispersing the aqueous emulsion in ethanol and using an electrophoretic light scattering photometer (manufactured by Otsuka Electronics Co., Ltd., model ELS-8000) at 20°C.

[0187] <(J) component> (J-1): 10% by mass hydrochloric acid aqueous solution.

[0188] <(L) component> (L-1): Ethylene glycol. (L-2): Ethanol.

[0189] <(M) component> (M-1): Trisodium methylglycine diacetate.

[0190] <(N) Component> (N-1):Si(O-Geranyl) 4 In addition, "Geranyl" in (N-1) represents a residue obtained by removing the hydroxyl group from geraniol (primary allylic alcohol fragrance, logP3.5). (N-1) was synthesized according to the following Production Example 4.

[0191] [Production Example 4: Production of (N-1)] 27.08 g (0.13 mol) of TEOS, 72.30 g (0.47 mol) of geraniol, and 0.485 mL of a 2.8% by mass sodium methoxide methanol solution were placed in a 200 mL four-neck flask, and the mixture was stirred at 110 to 120° C. for 2 hours while distilling off ethanol under a nitrogen stream. After 2 hours, the pressure in the tank was gradually reduced to 8 kPa, and the mixture was stirred at 117-120 °C for another 4 hours while distilling off ethanol. After 4 hours, the mixture was cooled, the reduced pressure was released, and then filtered to obtain Si(O-Geranyl). 4 As a yellow oil, 76.92 g was obtained.

[0192] (N-2): Ester of lauric acid and ethyl vanillin (N-2) was synthesized according to the following Production Example 5.

[0193] [Production Example 5: Production of (N-2)] Under a nitrogen atmosphere, 8.95g (0.041mol) of lauric acid chloride and 40mL of dichloromethane were placed in a 300mL four-neck flask and cooled to 0℃. Meanwhile, 6.80g (0.041mol) of ethyl vanillin, 4.35g (0.043mol) of triethylamine, and 40mL of dichloromethane were placed in a 100mL dropping funnel. Dropping was performed from the dropping funnel to the flask over 40 minutes so that the reaction temperature was kept at -5℃ to 0℃. After the dropwise addition was completed, stirring was performed at room temperature (25℃) for 2 hours. 10mL of saturated ammonium chloride aqueous solution was added to the flask to stop the reaction. 150mL of diethyl ether was added, the generated white solid was removed by filtration, and the filtrate was transferred to a separatory funnel. 100mL of ion-exchanged water was added to the separatory funnel, and the aqueous layer was extracted three times with 50mL of diethyl ether. The extracted solution was collected, washed with saturated saline, and the solution was dried with sodium sulfate. After removing the solvent under reduced pressure, 14.20 g (99% yield) of a pale yellow solid ester of lauric acid and ethyl vanillin was obtained. 1 The results were confirmed using H-NMR and IR.

[0194] <(O) component> (O-1) Ingredient: 1,2-benzothiazolin-3-one (Proxel BDN, manufactured by Arch Chemical Japan)

[0195] <Preparation of Textile Product Treatment Composition> A textile product treatment composition was prepared by mixing the components so as to obtain the composition shown in Table 8. Specifically, it is as follows. Note that the mass % of the composition in the table is the mass % of the active component. In a 300 mL beaker, 85% by mass of ion-exchanged water required for the finished amount of the textile product treatment composition to be 200 g was placed, along with the (E), (I), and (J) components, and optionally the (L), (M), and (O) components, and the temperature of the ion-exchanged water was adjusted to 60±2°C using a water bath. A mixed solution was obtained by stirring the mixture using a stirring blade as necessary so that the (E) component was uniformly dissolved in the ion-exchanged water. The stirring blade was a stirring blade arranged so that the long side was at 90 degrees with respect to the rotation center axis of a stirring rod with a diameter of 5 mm, with three blades, the long side / short side of the blade = 3 cm / 1.5 cm, and the blades were installed at an angle of 45 degrees to the rotation surface.

[0196] The mixture was adjusted to a temperature of 60±2° C. and stirred (300 rpm) with the stirring blade. Component (B) that had been dissolved by heating at 65° C. was added to the mixture over a period of 3 minutes, and then component (N-2) was added. After the addition was completed, the mixture was stirred for 15 minutes. Next, the mixture was cooled to 30±2° C. using a 5° C. water bath. Component (A), and optionally components (C), (N), (D), and (F) were added in sequence and stirred for 5 minutes. Further, ion-exchanged water was added to the mixture to a final mass of 200 g, and the mixture was stirred for 5 minutes to obtain a textile product treatment composition. The component (N-2) may be added after the component (B) that has been dissolved by heating at 65°C as described above, or it may be added after the mixed liquid has been cooled to 30±2°C, or it may be added in portions in both of these steps. The visible light transmittance of the obtained textile product treatment composition was measured. Specifically, a glass cell with an optical path length of 10 mm was used as the measurement cell, ion-exchanged water was placed in the control cell, and the measurement was performed using an ultraviolet-visible spectrophotometer (Shimadzu UV-2500PC). The visible light transmittance (wavelength 660 nm) of the textile product treatment compositions obtained in the examples and comparative examples was all less than 10%, and they were emulsion-type textile product treatment compositions.

[0197] <Evaluation> Cotton knitted fabric was washed five times in a Hitachi Ltd. fully automatic washing machine NW-6CY using a nonionic surfactant in which an average of 8 moles of EO was added to a primary alcohol with a carbon number of 12, and then dried indoors to remove excess chemicals. The washing conditions for each wash were 0.0667% detergent by mass, 47 L of tap water, water temperature 20°C, 10 minutes of washing, two rinses, and 6 minutes of spin-drying. After drying, the fabric was cut into pieces weighing approximately 800 mg each.

[0198] A bath treatment was carried out using a Tergotometer (manufactured by Daiei Kagaku Seiki Seisakusho). 675 μL of the above textile product treatment composition was added to 320 mL of tap water and stirred at 80 rpm for 1 minute, after which 27 pieces of the above cloth were added and stirred at 80 rpm for 5 minutes. Then, the cloth was dehydrated for 2 minutes in a twin-tub washing machine. In order to quantify the amount of fragrance compounds remaining on the dehydrated cloth, nine pieces of dehydrated cloth were placed in a glass bottle, 180 mL of acetone was added, and the fragrance compounds remaining on the dehydrated cloth were extracted into acetone by ultrasonic treatment for 30 minutes. The amount of fragrance compounds in the resulting acetone solution was measured using liquid chromatography (Shimadzu Corporation), and the amount of fragrance compounds adsorbed onto the cloth was determined. The amount of fragrance adsorption onto the cloth was divided by the amount of fragrance composition 1 in the capsule immediately after preparation of the composition, and the value was determined as the fragrance adsorption rate. In addition, γ-decalactone in fragrance composition 1 was selected for quantification of the fragrance compounds from the viewpoint of improving quantitative accuracy. The reason is that it is a compound that (i) has a low logP and is unlikely to be adsorbed to fabric unless encapsulated, and (ii) has a high blending rate. For each textile product treatment composition, treatment was performed using the composition immediately after preparation and the composition stored in a sealed bottle at 50°C for a specified number of days, and the fragrance adsorption rate of each composition was calculated. The results are shown in Table 8.

[0199] [Table 8]

[0200] The flavor adsorption rate in the capsules of the compositions of Examples 1-1 to 1-8 immediately after production was 66 to 73%, and showed high values ​​of 34 to 65% after 14 days of storage at 50° C. and 19 to 71% after 28 days of storage. On the other hand, in Comparative Example 1-10, which did not contain component (B), the adsorption rate decreased to 30% after 14 days of storage.

[0201] Next, the compositions shown in Table 9 were prepared using a germicide and an ultraviolet light absorber as beneficial ingredients.

[0202] [Table 9]

Claims

1. A method for adsorbing beneficial components onto a textile product by contacting the textile product with a textile product containing a textile product treatment agent composition containing microcapsules [hereinafter referred to as component (A)] encapsulating a beneficial agent composition containing beneficial components, wherein silicic acid and / or silicates, or compounds that generate silicic acid and / or silicates in water [hereinafter referred to as component (B)], is added to the textile product treatment agent composition, and the textile product treatment agent composition is used having a pH of 2 or more and less than 8 at 30°C.

2. (A) The method according to claim 1, wherein the component is a microcapsule having a shell containing silica and a core containing a beneficial component inside the shell.

3. (B) The silicic acid and / or silicate of component (B1) M ２ O・nSiO ２ ・MH ２ O (B1) Compounds represented by the formula [wherein M is an atom selected from alkali metal atoms and hydrogen atoms, n is a number between 1.0 and 4.0, and m is a number between 5.0 and 50.0] that produce silicic acid and / or silicates in water are given by the following general formula (B2): Si(OR ａ ) ４－ｐ R ｂ ｐ (B2) [In the formula, R ａ and R ｂ are each independently an alkyl group having 1 to 6 carbon atoms. p is 0 or 1.] A compound represented by A method according to claim 1 or 2, selected from the above.

4. The method according to claim 1 or 2, further comprising adding a cationic surfactant [hereinafter referred to as component (C)] to obtain a textile product treatment agent composition having a pH of 2 or more and less than 8 at 30°C.

5. A textile product treatment agent composition having a pH of 2 or more and less than 8 at 30°C, comprising microcapsules containing a beneficial agent composition containing beneficial ingredients [hereinafter referred to as component (A)], and silicic acid and / or silicates, or compounds that generate silicic acid and / or silicates in water [hereinafter referred to as component (B)].

6. The textile product treatment composition according to claim 5, wherein component (A) is a microcapsule having a silica-containing shell (second shell), a core containing a beneficial component inside the shell, and a silica-containing shell (first shell) enclosing the core.

7. The textile product treatment agent composition according to claim 6, wherein the shell of component (A) contains silica formed by a sol-gel reaction of an alkoxysilane as a constituent component.

8. The textile product treatment agent composition according to claim 7, comprising silica formed by carrying out the sol-gel reaction in two steps as a constituent component.

9. The textile product treatment agent composition according to claim 7, wherein the alkoxysilane is tetraethoxysilane.

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

11. The textile product treatment agent composition according to claim 6, wherein the second shell has an average thickness of 10 nm or more and 100 nm or less.

12. (A) Median diameter D of the microcapsule of component ５０ The textile product treatment agent composition according to claim 5, wherein the particle size is 0.1 μm or more and 50 μm or less.

13. (B) Component is the following general formula (B1) M ２ O・nSiO ２ ・MH ２ O (B1) Compounds represented by the formula [wherein M is an atom selected from alkali metal atoms and hydrogen atoms, n is a number between 1.0 and 4.0, and m is a number between 5.0 and 50.0], and / or the following general formula (B2) Si(OR ａ ) ４－ｐ R ｂ ｐ (B2) [In the formula, R ａ and R ｂ Each is an alkyl group having 1 to 6 carbon atoms independently. p is 0 or 1. The compound represented by ] The textile product treatment agent composition according to claim 5.

14. The textile product treatment agent composition according to claim 5, further containing a cationic surfactant [hereinafter referred to as component (C)].

15. (C) Component is given by the following general formula (c1) 【Chemistry 1】 [In the formula, R １ｃ The group is a hydrocarbon group having 12 to 28 carbon atoms, which may be divided by one or more selected from ester groups, amide groups, and ether groups, R ２ｃ Base and R ３ｃ Each base is independent, R １ｃ A textile product treatment agent composition according to claim 14, comprising a (C-1) component consisting of a tertiary amine represented by ] and its salt, and a (C-2) component consisting of a quaternary amine of general formula (1).

16. The textile product treatment agent composition according to claim 13, wherein the ratio (B) / (A), which is the ratio of the content (mass%) of the beneficial agent composition in component (A) to the content (mass%) of component (B) as silicon dioxide, is 0.01 or more and 10 or less.

17. The textile product treatment agent composition according to claim 14, wherein the ratio (C) / (A), which is the ratio of the content (mass%) of the beneficial agent composition in component (A) to the content (mass%) of component (C), is 5 or more and 1000 or less.

18. The textile product treatment agent composition according to claim 5, wherein the beneficial agent composition contained in component (A) contains one or more beneficial components selected from fragrances, fragrance precursors, fluorescent whitening agents, oils, antioxidants, cooling agents, warming agents, disinfectants, dyes, pigments, ultraviolet absorbers, silicones, solvents, and oil-soluble polymers.

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