Composition of fiber product treatment agent and treatment method of fiber product

Abstract

To provide a fiber product treatment agent composition capable of effectively imparting absorbability of metal oxides to fiber products and functions that metal oxides have.SOLUTION: A fiber product treatment agent composition containing particles (A) that include the following components (a) and (b), and water, where an average particle diameter of the component (A) is between 1 nm and 10 μm. (a) Component: one or more organic compounds selected from the following (a-1) to (a-5) (a-1) higher alcohols with a carbon number of 10 to 24 (a-2) high fatty acids with a carbon number of 10 to 24 (a-3) aliphatic glycerol ethers having an aliphatic hydrocarbon group with a carbon number of 10 to 24 (a-4) esters of fatty acids with a carbon number of 10 to 24 and polyols (a-5) quaternary ammonium salts, where one to three of the groups bonded to the nitrogen atom are hydrocarbon groups with a carbon number of 10 to 24, and the remaining groups are alkyl groups with a carbon number of 1 to 3 or hydroxyalkyl groups with a carbon number of 1 to 3. (b) Component: metallic oxides.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a textile treatment composition and a method for treating textile products. [Background technology]

[0002] Research is being conducted into technologies that can add additional functions to fabric softeners and detergents, such as fragrance, sterilization, disinfection, antibacterial properties, and UV protection, in addition to softening and cleaning effects.

[0003] Patent Documents 1 and 2 disclose techniques for imparting metal oxide particles having physical and chemical deodorizing effects to textile products. Patent Document 3 discloses a capsule comprising a core containing a beneficial agent and a shell surrounding the core, the shell comprising a first shell component, the first shell component being a nanoparticle layer comprising inorganic nanoparticles.

[0004] Patent Document 4 discloses a technology for cosmetics in which titanium oxide is encapsulated in gel particles, and Patent Document 5 discloses a technology for textile product treatment agents containing functional compounds encapsulated in capsules with an α-gel structure. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-207002 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-63499 [Patent Document 3] Special Publication No. 2022-52996 [Patent Document 4] International Publication No. 2016 / 080056 [Patent Document 5] Japanese Patent Application Publication No. 2022-142339 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a textile product treatment composition that can efficiently adsorb metal oxides onto textile products and effectively impart the functions of the metal oxides to textile products. [Means for solving the problem]

[0007] In one embodiment, the present invention provides a textile product treatment composition containing particles (A) [hereinafter, component (A)] containing the following component (a) and the following component (b), and water, wherein the average particle size of component (A) is 1 nm or more and 10 μm or less: Component (a): one or more organic compounds selected from the following (a-1) to (a-5): (a-1) Higher alcohol having 10 to 24 carbon atoms (a-2) Higher fatty acids having 10 to 24 carbon atoms (a-3) Aliphatic glyceryl ether having an aliphatic hydrocarbon group having 10 to 24 carbon atoms (a-4) Ester of a fatty acid having 10 to 24 carbon atoms and a polyhydric alcohol (a-5) A quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one to three are hydrocarbon groups having from 10 to 24 carbon atoms, and the rest are alkyl groups having from 1 to 3 carbon atoms or hydroxyalkyl groups having from 1 to 3 carbon atoms. (b) Component: Metal oxide

[0008] In another embodiment, the present invention provides a method for treating textile products, which comprises washing textile products with a textile product detergent containing an anionic surfactant and then contacting the textile product with the textile product treatment composition of the present invention. [Effects of the Invention]

[0009] According to the textile product treatment composition and textile product treatment method of the present invention, metal oxides can be efficiently adsorbed onto textile products, and the functions of the metal oxides can be effectively imparted to the textile products. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Textile product treatment composition] The textile product treatment composition of the present invention contains particles (A) (hereinafter referred to as component (A)) containing the following component (a) and the following component (b), and water. Component (a): one or more organic compounds selected from the following (a-1) to (a-5): (a-1) Higher alcohol having 10 to 24 carbon atoms (a-2) Higher fatty acids having 10 to 24 carbon atoms (a-3) Aliphatic glyceryl ether having an aliphatic hydrocarbon group having 10 to 24 carbon atoms (a-4) Ester of a fatty acid having 10 to 24 carbon atoms and a polyhydric alcohol (a-5) A quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one to three are hydrocarbon groups having from 10 to 24 carbon atoms, and the rest are alkyl groups having from 1 to 3 carbon atoms or hydroxyalkyl groups having from 1 to 3 carbon atoms. (b) Component: Metal oxide

[0011] The textile product treatment composition of the present invention allows the metal oxide in the composition to exhibit its antibacterial properties even in the presence of an anionic surfactant. Furthermore, the textile product treatment composition of the present invention allows the metal oxide in the composition to be uniformly adsorbed onto the fiber surface because the metal oxide in the composition has good dispersion stability in the treatment solution used to treat textile products.

[0012] One form of component (A) is preferably a particle having a shell phase containing component (a) and a core phase containing component (b) inside the shell phase, and another form is more preferably a particle having a shell phase containing component (a) and a core phase containing components (b) and (c) inside the shell phase. It is preferable that part or all of the shell phase forms the α-gel structure of component (a).

[0013] Generally, component (b) has poor dispersibility in water and is difficult to adsorb onto textile products. Even if component (b) does adsorb onto textile products, the expected effect is difficult to obtain with metal oxides that are not favorably dispersed on textile products. On the other hand, component (a) often exists in water as particles, preferably emulsified particles. Such particles have high adsorption properties to fibers, and component (A) with component (a) as the shell phase can be efficiently adsorbed onto fibers. The present invention provides a textile product treatment composition containing component (A), which is a particle, preferably an emulsified particle, in which component (b) is encapsulated in component (a), and which can efficiently adsorb component (b) onto fibers. It is believed that component (b) maintains high dispersibility on textile products, effectively imparting the functionality of metal oxides to textile products.

[0014] In one embodiment, component (A) has an average particle size of 1 nm or more, preferably 5 nm or more, more preferably 10 nm or more, and even more preferably 50 nm or more from the viewpoint of the production method, and 10 μm or less, and preferably 5 μm or less, from the viewpoint of antibacterial properties. The average particle size of component (A) is a value measured using a ZETASIZER (Nano-ZS) (manufactured by Malvern) for an aqueous dispersion prepared using ion-exchanged water so that the solids content of particles of component (A), preferably emulsified particles, is 0.03 mass %.

[0015] In another embodiment, the average particle size of component (A) is preferably 10 nm or more, more preferably 20 nm or more, even more preferably 30 nm or more, even more preferably 40 nm or more, even more preferably 50 nm or more, even more preferably 100 nm or more, and even more preferably 200 nm or more from the viewpoint of production efficiency, and is preferably 5 μm or less, more preferably 1 μm or less, even more preferably 800 nm or less, even more preferably 600 nm or less, even more preferably 500 nm or less, and even more preferably 400 nm or less from the viewpoint of antibacterial properties. The average particle size of component (A) can be appropriately adjusted by the production method (e.g., temperature, number of rotations and speed of the stirrer, etc.).

[0016] The organic compound of the component (a) constituting the component (A) can be one or more selected from the following (a-1) to (a-5). (a-1) Higher alcohol having 10 to 24 carbon atoms (a-2) Higher fatty acids having 10 to 24 carbon atoms (a-3) Aliphatic glyceryl ether having an aliphatic hydrocarbon group having 10 to 24 carbon atoms (a-4) Ester of a fatty acid having 10 to 24 carbon atoms and a polyhydric alcohol (a-5) A quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one to three are hydrocarbon groups having from 10 to 24 carbon atoms, and the rest are alkyl groups having from 1 to 3 carbon atoms or hydroxyalkyl groups having from 1 to 3 carbon atoms.

[0017] Furthermore, in the above (a-1) to (a-4), the higher alcohol of (a-1) is preferably a linear or branched alcohol, more preferably a linear primary alcohol; the higher fatty acid of (a-2) is preferably a linear fatty acid, more preferably a linear saturated fatty acid; the aliphatic hydrocarbon group of the aliphatic glyceryl ether is preferably a linear or branched alkyl group, more preferably a linear alkyl group; and the fatty acid of the ester compound of (a-3) is preferably a linear fatty acid, more preferably a linear saturated fatty acid.

[0018] Examples of the higher alcohol (a-1) having from 10 to 24 carbon atoms include capric alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, etc. Among these, those having a linear alkyl group are preferred, alcohols having from 10 to 20 carbon atoms are more preferred, and alcohols having from 10 to 18 carbon atoms are even more preferred.

[0019] Examples of (a-2) higher fatty acids having 10 to 24 carbon atoms include capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, etc. Among these, linear saturated fatty acids having 10 to 22 carbon atoms are preferred, and linear saturated fatty acids having 10 to 18 carbon atoms are more preferred.

[0020] Examples of (a-3) aliphatic glyceryl ethers having an aliphatic hydrocarbon group having from 10 to 24 carbon atoms include monodecyl glyceryl ether, monolauryl glyceryl ether, monomyristyl glyceryl ether, monocetyl glyceryl ether, monostearyl glyceryl ether, and monobehenyl glyceryl ether.

[0021] The (a-4) ester of a fatty acid having from 10 to 24 carbon atoms with a polyhydric alcohol includes a monoester, a diester, and a triester. The polyhydric alcohol is preferably a compound selected from glycerin, polyglycerin, sorbitan, and erythritol.

[0022] The ester (a-4) has an esterification rate of preferably 10 mol% or more, more preferably 20 mol% or more, and preferably 90 mol% or less, more preferably 85 mol% or less. The ester (a-4) may also be a mixture of compounds having different esterification rates of ester-linked fatty acids.

[0023] Among the esters (a-4), examples of the esters of fatty acids and glycerin include those represented by the following general formula (1).

[0024] [ka]

[0025] [In the formula, R a1 is a hydrogen atom or -O(CO)-(CH2)x-CH3, R a2 is a hydrogen atom or -(CO)-(CH2)y-CH3, R a3is a hydrogen atom or -(CO)-(CH)-CH, x, y, and z are each a number of 8 or more and 22 or less, and n is a number of 1 or more and 10 or less. When n is 2 or more, the ester is a2 may contain both a hydrogen atom and —(CO)—(CH)—CH, and R a1 , R a2 , R a3 At least one of R is a hydrogen atom, a1 , R a2 , R a3 are all hydrogen atoms.

[0026] In the above formula, n is preferably 1 or more and 10 or less, more preferably 8 or less, and even more preferably 6 or less. The ester of the above formula may be a single compound where n is a specific integer, or a mixture of multiple compounds where n is different. In the case of a mixture, the n of the compound that is contained in the largest amount can be considered to be the n of the mixture. n is preferably 1 or more and 5 or less, more preferably 3 or less, and even more preferably 2 or less. Furthermore, x, y, and z in the above formula are each preferably 8 or more and 20 or less, and more preferably 10 or more and 18 or less.

[0027] Furthermore, among the esters (a-4), examples of the esters of fatty acids and sorbitan include sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monobehenate, sorbitan dilaurate, sorbitan dimyristate, sorbitan dipalmitate, sorbitan distearate, sorbitan dibehenate, sorbitan trilaurate, sorbitan trimyristate, sorbitan tripalmitate, sorbitan tristearate, and sorbitan tribehenate.

[0028] Furthermore, among the esters of (a-4), examples of the esters of fatty acids and erythritol include erythritol monolaurate, erythritol monomyristate, erythritol monopalmitate, erythritol monostearate, erythritol monobehenate, erythritol dilaurate, erythritol dimyristate, erythritol dipalmitate, erythritol distearate, erythritol dibehenate, erythritol trilaurate, erythritol trimyristate, erythritol tripalmitate, erythritol tristearate, and erythritol tribehenate.

[0029] As the quaternary ammonium salt of (a-5), one to three of the groups bonded to the nitrogen atom are preferably hydrocarbon groups having from 10 to 24 carbon atoms, more preferably one of the groups bonded to the nitrogen atom is a linear primary alkyl or alkenyl group having from 12 to 23 carbon atoms, and the remaining groups are preferably alkyl groups having from 1 to 3 carbon atoms or hydroxyalkyl groups having from 1 to 3 carbon atoms, more preferably a group selected from methyl groups, ethyl groups, or hydroxyethyl groups. The counter anion is preferably a chloride ion, a methyl sulfate ion, or an ethyl sulfate ion.

[0030] The component (a) is preferably two or more selected from the above (a-1) to (a-5), and as one embodiment of the component (a), a combination of one or more selected from (a-1) to (a-4) with (a-5) is more preferred, as yet another embodiment, a combination of two or more selected from (a-1) to (a-4) with (a-5) is even more preferred, and as yet another embodiment, a combination of three or more selected from (a-1) to (a-4) with (a-5) is even more preferred.

[0031] When component (a) is a combination of one or more selected from (a-1) to (a-4) and (a-5) in one form, the content of (a-5) in 100% by mass of component (a) is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 20% by mass or more, and even more preferably 30% by mass or more, from the viewpoint of dispersion stability, and is preferably 90% by mass or less, more preferably 80% by mass or less, even more preferably 70% by mass or less, and even more preferably 60% by mass or less, from the viewpoint of adsorption to textile products. Component (a) is preferably a combination of (a-1), (a-3), (a-4), and (a-5) in another form.

[0032] The metal oxide of component (b) constituting component (A) is preferably a functional metal oxide. Here, the term "functional metal oxide" refers, for example, to a metal oxide blended to impart a function selected from deodorizing, antibacterial, and bactericidal effects. Component (b) is preferably at least one selected from zinc oxide and titanium oxide, with zinc oxide being more preferred.

[0033] The average primary particle size of component (b) is preferably 1 nm or more, more preferably 5 nm or more, from the viewpoint of adsorption to textile products, and is preferably less than 1000 nm, more preferably 200 nm or less, from the viewpoint of antibacterial properties. The average primary particle size of component (b) can be measured using a ZETASIZER (Nano-ZS) (manufactured by Malvern).

[0034] In addition, as another embodiment, the average primary particle size of component (b) is, from the viewpoint of adsorption to textile products, preferably 1 nm or more, more preferably 3 nm or more, even more preferably 5 nm or more, even more preferably 7 nm or more, and even more preferably 10 nm or more, and from the viewpoint of manufacturability, is preferably 200 nm or less, more preferably 100 nm or less, even more preferably 50 nm or less, and even more preferably 40 nm or less.

[0035] Component (A) preferably further contains a liquid oil (c), which is component (c). Component (c) is preferably one or more selected from hydrocarbon oils, ester oils (excluding (a-4)), and silicone oils. Examples of hydrocarbon oils include squalene, squalane, α-olefin oligomers, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, synthetic squalane, vegetable squalane, polybutene, and hydrogenated polyisobutene. From the viewpoint of manufacturability, synthetic squalane and vegetable squalane are preferred. Examples of ester oils (excluding (a-4)) include cetyl octanoate, myristyl lactate, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, isostearyl isostearate, and alkyl benzoates. From the viewpoint of manufacturability, alkyl benzoates are preferred. Examples of silicone oils include dimethicone, polyether-modified silicone, and amino-modified silicone, with dimethicone being preferred from the viewpoint of manufacturability.

[0036] Component (A) can be produced, for example, by a production method including an emulsification step in which components (a), (b), and optionally (c) are heated to 85°C and mixed with water to form an emulsion, and a cooling step in which the formed emulsion is cooled, for example, to 40°C or below. This method produces an aqueous dispersion containing particles, preferably emulsified particles, of component (A). The aqueous dispersion is preferably an oil-in-water emulsion. The emulsification step uses an emulsification device such as a homomixer, ultrasonic emulsifier, or high-pressure emulsifier. The cooling step involves cooling the resulting emulsion by continuous rapid cooling using, for example, a vibration-type stirring mixer, a scraped-surface heat exchanger, a static mixer, a plate-type heat exchanger, or a double-pipe heat exchanger, or by a general stirring and cooling method in a blending vessel.

[0037] The textile product treatment composition of the present invention contains the particles, preferably emulsified particles, of the component (A), and water. That is, the textile product treatment composition of the present invention may be an aqueous dispersion containing the particles, preferably emulsified particles, of the component (A). The textile product treatment composition of the present invention is preferably an oil-in-water emulsion. That is, the textile product treatment composition of the present invention may be an aqueous dispersion containing the particles, the component (A), or an aqueous dispersion containing the emulsified particles, the component (A), and the aqueous dispersion is preferably an oil-in-water emulsion.

[0038] The water is preferably deionized water, and water sterilized with hypochlorous acid (hypochlorous acid sterilized water) can be used. Note that part of the water may be derived from an aqueous dispersion containing component (A), or may be water containing impurities introduced during the production process of component (A).

[0039] When the textile product treatment composition of the present invention is, in one form, an aqueous dispersion containing particles that are the aforementioned component (A), the content of component (a) in component (A) is preferably 3% by mass or more, and more preferably 5% by mass or more, from the viewpoint of manufacturability, and preferably 30% by mass or less, and more preferably 20% by mass or less, from the viewpoint of manufacturability; the content of component (b) in component (A) is preferably 1% by mass or more, and more preferably 2% by mass or more, from the viewpoint of dispersion stability, and preferably 60% by mass or less, more preferably 50% by mass or less, even more preferably 40% by mass or less, and even more preferably 30% by mass or less, from the viewpoint of manufacturability; and the content of optional component (c) in component (A) is preferably 3% by mass or more, and more preferably 5% by mass or more, from the viewpoint of manufacturability, and preferably 30% by mass or less, and more preferably 20% by mass or less, from the viewpoint of manufacturability.

[0040] These contents may be based on the blending amounts when producing particles, preferably emulsified particles, of component (A), and the remainder of 100% by mass of component (A), excluding components (a), (b), and optional component (c), can be water. In this case, the amount of water is preferably 10 to 25 times the amount of component (a). Therefore, in the present invention, the content of each component in particles, preferably emulsified particles, of component (A) can be determined on the assumption that the particles, preferably emulsified particles, contain 20 times the amount of water of component (a) used for blending. Furthermore, the total content of the (a) component, the (b) component and the optional (c) component is preferably 80% by mass or more, based on 100% by mass of the particles of the (A) component excluding water.

[0041] In one embodiment of the textile product treatment composition of the present invention, the mass ratio (b) / (a) of the content of component (a) to the content of component (b) in component (A) is, from the viewpoint of manufacturability, preferably 0.5 or more, more preferably 1 or more, even more preferably 1.5 or more, and even more preferably 2 or more, and from the viewpoint of manufacturability, is preferably 10 or less, more preferably 7 or less, even more preferably 6 or less, and even more preferably 4 or less.

[0042] In another embodiment, the textile product treatment composition of the present invention may be prepared by further diluting with water the aqueous dispersion containing the particles as component (A) described above. When the textile product treatment composition of the present invention is obtained by further diluting the aqueous dispersion with water, the content of component (a) is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, more preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, from the viewpoint of dispersion stability, and is preferably 20% by mass or less, more preferably 10% by mass or less, even more preferably 7.5% by mass or less, even more preferably 5% by mass or less, and even more preferably 1% by mass or less, from the viewpoint of viscosity; and the content of component (b) is preferably 0.2% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more, from the viewpoint of antibacterial activity, and is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 15% by mass or less, more preferably 10% by mass or less, more preferably 7.5% by mass or less, even more preferably 5% by mass or less, and even more preferably 2% by mass or less, from the viewpoint of dispersion stability.

[0043] The pH of the textile treatment composition of the present invention at 25°C is preferably 1.5 or higher, more preferably 2 or higher, from the viewpoint of storage stability, and is more preferably 7 or lower, even more preferably 6 or lower, and even more preferably 5 or lower, from the viewpoint of storage stability. The pH is measured at 25°C in accordance with item 8.3 of JIS K 3362; 2008. The pH is adjusted using an alkaline agent and an acidic agent.

[0044] From the viewpoint of the liquid properties of the composition, the viscosity of the textile treatment composition of the present invention at 30°C is preferably 5 mPa·s or more, more preferably 7 mPa·s or more, and preferably 300 mPa·s or less, more preferably 200 mPa·s or less. The viscosity of the textile treatment composition of the present invention can be measured, for example, using a B-type viscometer (model number: TVB-10, manufactured by Toki Sangyo Co., Ltd., using a No. 2 rotor, 60 r / min).

[0045] In one embodiment of the textile product treatment composition of the present invention, a water dispersion of particles, preferably emulsified particles, as component (A) can be brought into contact with a textile product. Alternatively, in another embodiment of the textile product treatment composition of the present invention, an aqueous dispersion containing component (A) can be brought into contact with a textile product. Alternatively, in another embodiment of the textile product treatment composition of the present invention, a water dispersion of component (A) can be further diluted with water and brought into contact with a textile product. Alternatively, in another embodiment of the textile product treatment composition of the present invention, an aqueous dispersion containing component (A) can be further diluted with water and brought into contact with a textile product.

[0046] Furthermore, the textile product treatment composition of the present invention may, in one form, be a softener composition containing particles, preferably emulsified particles, as component (A) and water, and can act as an antibacterial composition for textile products. Therefore, by blending the textile product treatment composition of the present invention containing component (A) and water, i.e., an aqueous dispersion containing component (A), into a softener composition, the textile product treatment composition exhibits superior antibacterial properties to conventional softener compositions, specifically softener compositions containing antibacterial compounds.

[0047] When the textile product treatment composition of the present invention, in one form, is a fabric softener composition containing particles, preferably emulsified particles, as component (A) and water, the content of component (a) is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, more preferably 0.05% by mass or more, and more preferably 0.1% by mass or more from the viewpoint of dispersion stability, and is preferably 20% by mass or less, more preferably 10% by mass or less, even more preferably 7.5% by mass or less, even more preferably 5% by mass or less, and even more preferably 1% by mass or less from the viewpoint of viscosity, and the content of component (b) is preferably 0.2% by mass or more, more preferably 0.3% by mass or more, and even more preferably 0.5% by mass or more from the viewpoint of antibacterial activity, and is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 7.5% by mass or less, even more preferably 5% by mass or less, and even more preferably 2% by mass or less from the viewpoint of dispersion stability. The water content in the textile product treatment composition of the present invention is preferably 50% by mass or more, more preferably 60% by mass or more, and is preferably 95% by mass or less, more preferably 90% by mass or less.

[0048] The textile product treatment composition of the present invention preferably further contains the following components.

[0049] The textile product treatment composition of the present invention may contain a quaternary ammonium salt surfactant (B) [hereinafter referred to as component (B)].

[0050] The quaternary ammonium surfactant of component (B) may be the same quaternary ammonium salt surfactant as (a-5) in component (A), but from the viewpoint of the softness of textile products, it is preferable that it be a quaternary ammonium salt surfactant different from (a-5).

[0051] Specific examples of the quaternary ammonium salt surfactant as component (B) include: (B-1) a quaternary ammonium salt compound represented by the following general formula (2) [hereinafter referred to as component (B-1)], and (B-2) A quaternary ammonium salt compound represented by the following general formula (3) [hereinafter referred to as component (B-2)]

[0052] [ka]

[0053] [In the formula, R b1 is an alkyl or alkenyl group having 12 to 22 carbon atoms. Y is -COO-, -CONR b5 -, -OCO- or -NR b5 CO-, where R b5 is a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group. b2 is an alkylene group having 1 to 5 carbon atoms. b3 are each independently an alkyl group having 1 to 3 carbon atoms, -R b2 -OH or -R b2 -YR b1 However, when two or more kinds of quaternary ammonium salts are contained, at least one Y is -COO- or -OCO-. b4 is an alkyl group having 1 to 3 carbon atoms. - is the counter anion.]

[0054] [ka]

[0055] [In the formula, R b6 is an alkyl or alkenyl group having 8 to 24 carbon atoms, and R b7 is an alkylene group having 1 to 6 carbon atoms or -(OR b11 )n-, where R b11 is an ethylene group or a propylene group, and n represents the average number of moles added, which is 1 or more and 10 or less. T is -COO-, -OCO-, -CONH-, -NHCO- or a phenylene group. m is 0 or 1. R b10 R represents an alkyl group having 1 to 3 carbon atoms, a benzyl group, or a phenethyl group. b8 is Rb10 is an alkyl group or alkenyl group having 8 to 24 carbon atoms when R is an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms; b10 When R is a benzyl group or a phenethyl group, it is an alkyl group having 1 to 3 carbon atoms. b9 is an alkyl group having 1 to 3 carbon atoms. - is the counter anion.]

[0056] The component (B-1) may be a compound represented by the general formula (2), wherein R b1 is one or more hydrocarbon groups selected from saturated or unsaturated hydrocarbon groups having from 12 to 22 carbon atoms, from the viewpoints of softness and antibacterial properties, and is preferably one or more hydrocarbon groups selected from saturated or unsaturated hydrocarbon groups having from 15 to 19 carbon atoms. From the viewpoint of softness to textile products, a heptadecyl group, a pentadecyl group, an 8-heptadecenyl group, or an 8,11-heptadecedienyl group is preferred.

[0057] R b2 are each independently an alkylene group having 1 to 5 carbon atoms, preferably an ethylene group or a propylene group, more preferably an ethylene group, from the viewpoint of flexibility in textile products. Y is -COO-, -CONR b5 -, -OCO- or -NR b5 R is CO-, preferably -COO- or -OCO-, and more preferably -COO-. b3 From the viewpoint of the synthesis efficiency of the softening base, -R is an alkyl group having 1 to 3 carbon atoms. b2 -OH or -R b2 -YR b1 and -R b2 -YR b1 In this case, Y is preferably -COO- or -OCO-, and more preferably -COO-. b4 is an alkyl group having 1 to 3 carbon atoms, and a methyl group is preferred from the viewpoint of the efficiency of synthesis of the softening agent.

[0058] X -is a counter anion, and is preferably an anion selected from a halide ion, preferably a chloride ion, an alkyl sulfate ester ion having from 1 to 3 carbon atoms, a fatty acid ion having from 12 to 18 carbon atoms, and a benzenesulfonate ion which may be substituted with from 1 to 3 alkyl groups having from 1 to 3 carbon atoms, more preferably an anion selected from an alkyl sulfate ester ion having from 1 to 3 carbon atoms, and more preferably a monomethyl sulfate ion or a monoethyl sulfate ion.

[0059] The preferred component (B-1) where Y is -COO- can be produced, for example, by (1) a dehydration esterification reaction between a trialkanolamine having a hydroxyalkyl group preferably having from 1 to 3 carbon atoms, more preferably 2 or 3 carbon atoms, and a fatty acid, and even more preferably triethanolamine, or (1') a transesterification reaction between the amine and a lower alcohol ester of a fatty acid, followed by (2) a quaternization reaction with an alkylating agent. The component (B-1) can be produced by using a mixture of fatty acids differing in the number of carbon atoms or degree of unsaturation as the fatty acid, or a mixture of fatty acid lower alcohol esters differing in the number of carbon atoms or degree of unsaturation in the fatty acid moiety as the fatty acid lower alcohol ester.

[0060] The fatty acid or fatty acid mixture used to produce component (B-1) is preferably a fatty acid selected from stearic acid, palmitic acid, oleic acid, or linoleic acid, or a mixture thereof, or a fatty acid having a composition derived from palm oil, soybean oil, or olive oil.

[0061] The acid value of the fatty acid or fatty acid mixture used to produce component (B-1) is preferably 180 mgKOH / g or more, more preferably 200 mgKOH / g or more, and preferably 240 mgKOH / g or less, more preferably 210 mgKOH / g or less, in terms of the liquid properties of the composition. The iodine value of the fatty acid or fatty acid mixture used to produce component (B-1) is preferably 30 g / 100 g or more, more preferably 40 g / 100 g or more, and preferably 100 g / 100 g or less, more preferably 95 g / 100 g or less, in terms of the liquid properties of the composition. The acid value and iodine value of the fatty acid or fatty acid mixture are measured by the method described in the "Iwanami Dictionary of Physics and Chemistry," 4th Edition, Iwanami Shoten, Japan.

[0062] The component (B-2) is a compound represented by the general formula (3), wherein R b6 From the viewpoint of deodorizing and antibacterial properties, the alkyl or alkenyl group preferably has 8 or more carbon atoms, more preferably 10 or more carbon atoms, and preferably has 24 or less carbon atoms, more preferably 22 or less carbon atoms.

[0063] R b7 is an alkylene group having 1 to 6 carbon atoms or -(OR b11 )n-. R b7 When R is an alkylene group, the number of carbon atoms is preferably 2 or more and 3 or less from the viewpoint of deodorizing and antibacterial properties. b7 -(OR b11 )n-, then R b11 is preferably an alkylene group having 2 to 3 carbon atoms, more preferably an ethylene group; n represents the average number of moles added, preferably 1 or more, and preferably 10 or less, more preferably 5 or less.

[0064] T is —COO—, —OCO—, —CONH—, —NHCO—, or a phenylene group, and m is 0 or 1. From the viewpoint of deodorizing and antibacterial properties, T is preferably —COO— or —OCO—, and m is preferably 0.

[0065] R b10R is an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, a benzyl group, or a phenethyl group. b8 is R b10 is a benzyl group or a phenethyl group, R is an alkyl group having 1 to 3 carbon atoms, b10 is an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and is an alkyl group or alkenyl group having 5 to 19 carbon atoms. b10 is a benzyl group and R b8 is a methyl group, or R b10 is a methyl group and R b8 is preferably an alkyl group having 8 to 24 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, or an alkenyl group. b8 When is an alkyl or alkenyl group having 8 to 24 carbon atoms, the number of carbon atoms is preferably 8 or more, more preferably 10 or more, and is preferably 24 or less, more preferably 22 or less.

[0066] R b9 is an alkyl group having 1 to 3 carbon atoms, and from the viewpoint of deodorizing and antibacterial properties, a methyl group is preferred.

[0067] Z - is a counter anion, and is preferably a halide ion, and is preferably an anion selected from a chloride ion, an alkyl sulfate ion having from 1 to 3 carbon atoms, a fatty acid ion having from 12 to 18 carbon atoms, and a benzenesulfonate ion which may be substituted with from 1 to 3 alkyl groups having from 1 to 3 carbon atoms; a methyl sulfate ion, an ethyl sulfate ion, or a halide ion is more preferred, and a chloride ion is particularly preferred.

[0068] Specific examples of component (B-2) include quaternary ammonium salts in which, of the groups bonded to the nitrogen atom, one or two are hydrocarbon groups having from 8 to 24 carbon atoms, and the remaining are alkyl groups, hydroxyalkyl groups, or benzyl groups having from 1 to 3 carbon atoms. More specific examples include monoalkyl-type quaternary ammonium salts in which, of the groups bonded to the nitrogen atom, one is a hydrocarbon group having from 8 to 24 carbon atoms, and three are alkyl groups, hydroxyalkyl groups, or benzyl groups having from 1 to 3 carbon atoms; and dialkyl-type quaternary ammonium salts in which, of the groups bonded to the nitrogen atom, two are hydrocarbon groups having from 8 to 24 carbon atoms, and two are alkyl groups, hydroxyalkyl groups, or benzyl groups having from 1 to 3 carbon atoms.

[0069] One preferred form of component (B-2) is a quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one or two are linear alkyl groups having 16 or 18 carbon atoms or long-chain alkyl fatty acid ester groups having 16 or 18 carbon atoms, and the remaining are alkyl groups having from 1 to 3 carbon atoms, hydroxyalkyl groups, or benzyl groups [hereinafter referred to as component (B-2-1)].

[0070] The (B-2-1) component is preferably, for example, a quaternary ammonium salt in which one or two of the groups bonded to the nitrogen atom are linear alkyl groups having 16 or 18 carbon atoms, and the remaining groups are alkyl groups having 1 to 3 carbon atoms, hydroxyalkyl groups, or benzyl groups. From the viewpoint of flexibility in textile products, for example, a di-long-chain alkyl quaternary ammonium salt in which two of the groups bonded to the nitrogen atom are linear alkyl groups having 16 or 18 carbon atoms, and the remaining two are alkyl groups having 1 or 2 carbon atoms or hydroxyethyl groups is preferred. Examples of counter anions include halide ions such as bromide ion, iodide ion, and chloride ion, methyl sulfate ester ion, hydroxide ion, and acetate ion, with chloride ion being preferred.

[0071] Furthermore, component (B-2-1) is preferably, for example, a di-long-chain alkyl fatty acid ester quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one or two are long-chain alkyl fatty acid ester groups with 16 to 18 carbon atoms, and the remaining are alkyl groups or hydroxyethyl groups with 1 or 2 carbon atoms. From the viewpoint of flexibility in textile products, for example, a di-long-chain alkyl fatty acid ester quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, two are long-chain alkyl fatty acid ester groups with 16 to 18 carbon atoms, and the remaining two are alkyl groups or hydroxyethyl groups with 1 or 2 carbon atoms is preferred. Examples of counter anions include halide ions such as bromide ion, iodide ion, and chloride ion, methyl sulfate ester ion, hydroxide ion, and acetate ion, with chloride ion being preferred. Component (B-2-1) is preferably a dimethyl di-long-chain alkyl ammonium salt.

[0072] In another embodiment, component (B-2) is preferably a quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one or two are linear alkyl groups having from 8 to 15 carbon atoms or long-chain alkyl fatty acid ester groups having from 8 to 15 carbon atoms, and the remaining are alkyl groups having from 1 to 3 carbon atoms, hydroxyalkyl groups, or benzyl groups [hereinafter referred to as component (B-2-2)].

[0073] From the viewpoint of antibacterial properties, the (B-2-2) component is preferably, for example, a di-long-chain alkyl quaternary ammonium salt in which, of the groups bonded to the nitrogen atom, two are linear, long-chain alkyl groups having from 8 to 15 carbon atoms, and the remaining two are alkyl groups having from 1 to 2 carbon atoms or hydroxyethyl groups; and from the viewpoint of antibacterial properties, a di-long-chain alkyl quaternary ammonium salt in which, of the groups bonded to the nitrogen atom, one is a linear, long-chain alkyl group having from 8 to 15 carbon atoms, and the remaining are alkyl groups having from 1 to 2 carbon atoms, hydroxyethyl groups, or benzyl groups is preferred.

[0074] In the textile product treatment composition of the present invention, the content of component (B) is preferably 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more from the viewpoints of softness and antibacterial properties, and is preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 18% by mass or less from the viewpoint of the liquidity of the composition. The content of the quaternary ammonium salt surfactant as component (B) may be the amount based on the compound in which the counter anion is replaced with a chloride ion.

[0075] The textile treatment composition of the present invention may contain a nonionic surfactant (C) [hereinafter referred to as component (C)].

[0076] Examples of component (C) include polyoxyethylene lauryl ether, polyoxyethylene fatty acid alkyl ester, polyoxyethylene alkylamine, alkyl polyglucoside, etc., and from the viewpoint of the liquidity of the composition and the permeability of the textile product, the average number of moles of oxyethylene added is preferably 3 or more, more preferably 10 or more, even more preferably 20 or more, and is preferably 80 or less, more preferably 70 or less, even more preferably 60 or less, and specifically polyoxyethylene lauryl ether within the above range is preferred.

[0077] In the textile product treatment composition of the present invention, the content of component (C) is preferably 0.5% by mass or more, more preferably 1% by mass or more, from the viewpoints of softness and antibacterial properties, and is preferably 5% by mass or less, more preferably 4% by mass or less, and even more preferably 3.5% by mass or less, from the viewpoint of the liquidity of the composition.

[0078] The textile product treatment composition of the present invention may further contain (D) a water-soluble inorganic salt (hereinafter referred to as component (D)). From the viewpoint of improving storage stability, component (D) is preferably one or more selected from calcium chloride, sodium chloride, and magnesium chloride. From the viewpoint of storage stability, the content of component (D) in the composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and from the viewpoint of storage stability, is preferably 1% by mass or less, more preferably 0.5% by mass or less.

[0079] The textile product treatment composition of the present invention may further contain (E) a fragrance (hereinafter referred to as component (E)). The fragrance may be in the form of a microcapsule, or the fragrance itself may be used as the outer fragrance. It is preferable to use a combination of an outer fragrance (non-microcapsule) (hereinafter referred to as fragrance component 1) and a fragrance encapsulated in microcapsule particles (hereinafter referred to as fragrance component 2) as component (E).

[0080] Examples of fragrances include natural or synthetic fragrances commonly used in textile treatment compositions. For example, fragrances described in "Synthetic Fragrances: Chemistry and Product Knowledge" by Genichi Indo, published in 1969 by The Chemical Daily, and "Perfume and Flavor Chemicals" by Stephen Arctander, published in 1969 by Montclair, NJ, can be used. The fragrances used in the present invention are organic compounds known to be used as fragrances, and fragrances described in "Practical Knowledge of Fragrances and Fragrance Blending" (by Mototaka Nakajima, published by Sangyo Tosho Co., Ltd. on June 21, 1995) can be used in combination as appropriate depending on the fragrance tone and intended use. Furthermore, fragrance components having a hydroxyl group, as described in JP 2009-256818 A, can also be used in combination as silicate esters, in order to improve the persistence and lingering fragrance of the fragrance. Fragrances and fragrance compositions described in patent documents for fabric softeners, starches, styling agents, or other finishing agents known as laundry finishing agents can also be used.

[0081] Examples of fragrance compounds that can be suitably used as fragrance component 1 in the present invention include ethers such as fatty acid ethers and aromatic ethers (excluding hydroxyphenyl ethers), oxides such as fatty acid oxides and terpene oxides, acetals, ketals, phenols, hydroxyphenyl ethers, fatty acids, terpene carboxylic acids, hydrogenated aromatic carboxylic acids, aromatic carboxylic acids, and nitrogen-containing compounds such as acid amides, nitromusks, nitriles, amines, pyridines, quinolines, pyrroles, and indoles. Fragrance component 1 can be used as fragrance composition 1 containing one or more of these fragrance compounds.

[0082] In the present invention, a fragrance compound that can be suitably used as fragrance component 2 can be a microcapsule encapsulating a fragrance component, such as the fragrance microcapsules disclosed in JP 2021-143291 A and the fragrance-encapsulating microcapsules disclosed in JP 2022-208262 A. The fragrance component encapsulated in the microcapsules can be the same as fragrance component 1.

[0083] When the textile product treatment composition of the present invention contains component (E), the content of component (E) is, from the viewpoint of deodorizing performance, preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.4% by mass or more, and even more preferably 0.5% by mass or more, and, from the viewpoint of storage stability, preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, and even more preferably 1.5% by mass or less.

[0084] Furthermore, in component (E), the mass ratio of the contents of fragrance components 1 and 2, fragrance component 2 / fragrance component 1 (mass ratio), is preferably 0.01 or more, more preferably 0.03 or more, and is preferably 2 or less, more preferably 1 or less, and even more preferably 0.5 or less, from the viewpoint of deodorizing performance.

[0085] The textile treatment composition of the present invention may further contain an antibacterial compound. The antibacterial compound can be selected from compounds that exhibit a growth inhibition zone when tested for antibacterial activity according to JIS L 1902 "Antibacterial Test Method for Textile Products," using, for example, a cotton cloth #2003 with 1% by mass of the compound uniformly applied thereto. Note that the antibacterial compound referred to here does not include quaternary ammonium salt-type antibacterial compounds, such as the aforementioned component (B).

[0086] Examples of antibacterial compounds include antibacterial compounds having a diphenyl ether skeleton, antibacterial compounds selected from phenol derivatives, and antibacterial compounds selected from benzoic acid derivatives. From the viewpoints of antibacterial properties and ease of fixation to textile products after washing (antibacterial maintenance), antibacterial compounds having a diphenyl ether skeleton, such as antibacterial compounds containing a halogen atom and having a diphenyl ether skeleton, are preferred. Specific compounds include diclosan, triclosan, benzoic acid, paraben, etc., and from the viewpoints of antibacterial properties and ease of fixation to textile products after washing, diclosan and triclosan are preferred, and from the viewpoint of ease of product design, diclosan is more preferred.

[0087] From the viewpoint of deodorizing performance, the content of the antibacterial compound in the composition is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and even more preferably 0.15% by mass or more, and from the viewpoint of the liquidity of the composition, it is preferably 4% by mass or less, more preferably 3% by mass or less, even more preferably 1.5% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

[0088] The textile product treatment composition of the present invention may contain, in addition to the above components (A) to (E) and the antibacterial compound, preservatives, chelating agents, antifoaming agents, solvents, oils, neutralizing agents, softening aids, antibacterial aids, and the like, within ranges that do not impair the effects of the present invention.

[0089] The textile product treatment composition of the present invention may be an oil-in-water emulsion, and may contain an aqueous solvent such as ethylene glycol, polyethylene glycol, glycerin, 1,2-propanediol, 1,3-propanediol, or ethanol within a range that does not impair the effects of the present invention.

[0090] The pH of the textile treatment composition of the present invention at 25°C is preferably 1.5 or higher, more preferably 2 or higher, from the viewpoint of storage stability, and is preferably 9 or lower, preferably 7 or lower, more preferably 6 or lower, and even more preferably 5 or lower, from the viewpoint of storage stability. The pH is measured at 25°C in accordance with item 8.3 of JIS K 3362; 2008. The pH is adjusted using an alkaline agent and an acidic agent.

[0091] From the viewpoint of the liquid properties of the composition, the viscosity of the textile treatment composition of the present invention at 30°C is preferably 5 mPa·s or more, more preferably 7 mPa·s or more, and preferably 300 mPa·s or less, more preferably 200 mPa·s or less. The viscosity of the textile treatment composition of the present invention can be measured, for example, using a B-type viscometer (model number: TVB-10, manufactured by Toki Sangyo Co., Ltd., using a No. 2 rotor, 60 r / min).

[0092] [Method for treating textile products] The present invention can provide a method for treating textile products, which comprises washing the textile products with a textile product detergent containing an anionic surfactant and then contacting the textile products with a textile product treatment composition containing component (A) and water.

[0093] In the textile product treatment method of the present invention, specific examples and preferred examples of component (A) and the optional components (B) to (E) can be the same as those in the textile product treatment composition of the present invention described above. Furthermore, in the treatment method of the present invention, the matters described for the textile product treatment composition of the present invention can be appropriately applied to the treatment method of the present invention.

[0094] A textile product treatment composition containing an antibacterial component, for example, a cationic antibacterial compound, may inhibit the expression of its inherent antibacterial effect when used to treat textile products containing residual anionic surfactants, such as residual laundry detergent residues.The textile product treatment composition of the present invention can still provide its inherent antibacterial effect, even when used to treat textile products containing residual anionic surfactants, such as residual laundry detergent residues, thanks to the metal oxide of component (b), specifically component (A) containing the functional metal oxide of component (b).

[0095] In the treatment method of the present invention, the target textile product can be incorporated, for example, into the rinsing step when washing in a home washing machine, or the textile product can be immersed in a treatment solution prepared by diluting the textile product treatment composition of the present invention with water.

[0096] The treatment method of the present invention is not particularly limited when the target textile product is incorporated, for example, in the rinsing step when washing in a domestic washing machine. Specifically, the treatment method of the present invention includes the following steps 1 to 3, and can be applied to a textile product by contacting the textile product with a textile product treatment composition containing component (A) and water. Step 1: Washing textile products using washing water containing 0.001% by mass or more and 0.1% by mass or less of an anionic surfactant under conditions of a bath ratio [amount of washing water / mass of textile products] of 3 to 25 Step 2: After step 1, a step of removing the washing water used in step 1 from the textile product. Step 3: A step of contacting the textile product obtained in step 2 with the textile product treatment composition of the present invention.

[0097] Step 1 can be carried out, for example, by adding a detergent composition containing an anionic surfactant to water together with laundry (textile products) during washing using a washing machine. That is, in Step 1, wash water containing 0.001% by mass or more and 0.1% by mass or less of an anionic surfactant is prepared, and the textile products can be washed using the wash water under conditions of a liquor ratio [amount of wash water / mass of textile products] of 3 to 25.

[0098] The anionic surfactant used in step 1 is not particularly limited as long as it is used in, for example, a fabric detergent containing an anionic surfactant, and examples thereof include sulfate salts of higher alcohols, sulfate salts of ethoxylated higher alcohols, alkylbenzenesulfonates (e.g., linear alkylbenzenesulfonates having an alkyl chain of 10 to 18 (preferably 12 to 14) carbon atoms), paraffin sulfonates, α-olefin sulfonates, α-sulfofatty acid salts or ester salts thereof, and fatty acid salts. Examples of counter cations include alkali metals, alkaline earth metals, ammonium, and alkanolamines.

[0099] The anionic surfactant used in step 1 is contained in the cleaning water preferably at 0.001% by mass or more, more preferably at 0.005% by mass or more, and preferably at 0.1% by mass or less, more preferably at 0.05% by mass or less.

[0100] In step 1, the liquor ratio [amount of washing water / mass of textile product] is preferably 3 or more, more preferably 5 or more, and is preferably 25 or less, more preferably 20 or less, and the textile product can be washed under these conditions.

[0101] In step 2, after step 1, the wash water used in step 1 can be dehydrated from the textile product. It is not necessary to completely remove the wash water from the textile product, and it is sufficient to dehydrate the wash water from the textile product at a level that is normally used in home laundry (for example, the dehydration process in washing using a washing machine). It is preferable to dehydrate the textile product to an extent that the wash water contains 50 to 80% by mass of the mass of the textile product when dried.

[0102] In step 3, the textile product obtained after dehydration in step 2 can be contacted in water with the textile product treatment composition of the present invention. For example, this can be carried out by adding the textile product treatment composition of the present invention to rinsing water during the rinsing step of washing.

[0103] The liquor ratio in step 3 is set to a low level similar to that in step 1, specifically, the liquor ratio in step 3 [amount of treatment water containing the textile product treatment composition of the present invention / mass of textile product] is preferably 3 or more, more preferably 5 or more, and preferably 25 or less, more preferably 20 or less, and textile products can be treated under these conditions. In the present invention, rinsing in step 3 may be performed once or twice, and even when the textile product treatment composition of the present invention is added to the rinsing water used in the first rinsing, the antibacterial effect of the textile product treatment composition of the present invention can be fully exerted.

[0104] The treatment method of the present invention can also be applied to textile products by contacting the target textile product with, for example, a treatment liquid prepared by diluting the textile product treatment composition of the present invention with water.

[0105] In the treatment method of the present invention, when the target textile product is immersed in a treatment liquid obtained by diluting the textile product treatment composition of the present invention with water, specifically, the textile product obtained after steps 1 and 2 can be immersed in the treatment liquid.

[0106] In the treatment method of the present invention, the target textile product is preferably immersed for, for example, preferably 1 minute or more, more preferably 2 minutes or more, and preferably 3 minutes or more and more preferably 10 minutes or less. After immersion for the above-mentioned range of time, it is preferable to dehydrate the textile product treated by the treatment method of the present invention.

[0107] The textile product to which the treatment method of the present invention has been applied can be dehydrated and dried, and then used in applications where antibacterial textile products are desired.

[0108] The ratio of component (b) in the treatment liquid to the textile product is preferably 0.1 mg or more, more preferably 1 mg or more, and preferably 1000 mg or less, more preferably 500 mg or less, per 1 kg of textile product.

[0109] The treatment method of the present invention can be applied to textile products made of suitable hydrophobic or hydrophilic fibers. Examples of hydrophobic fibers include protein-based fibers (milk protein casein fiber, Promix, etc.), polyamide-based fibers (nylon, etc.), polyester-based fibers (polyester, etc.), polyacrylonitrile-based fibers (acrylic, etc.), polyvinyl alcohol-based fibers (vinylon, etc.), polyvinyl chloride-based fibers (polyvinyl chloride, etc.), polyvinylidene chloride-based fibers (vinylidene, etc.), polyolefin-based fibers (polyethylene, polypropylene, etc.), polyurethane-based fibers (polyurethane, etc.), and polyvinyl chloride / polyvinyl alcohol copolymer-based fibers (polycrelal, etc.). Examples of hydrophilic fibers include seed hair fibers (cotton, cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (Manila hemp, sisal, etc.), palm fibers, rush, straw, animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuna, angora, etc.), silk fibers (domestic silk, wild silk), feathers, and cellulosic fibers (rayon, polynosic, cupra, acetate, etc.).

[0110] Examples of textile products include fabrics such as woven fabrics, knitted fabrics, and nonwoven fabrics using the hydrophobic fibers or hydrophilic fibers, and products obtained using the same, such as undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, and tights. [Example]

[0111] [Method for producing textile product treatment composition] (1) (A) Manufacture of component The components listed in Table 1 were mixed in the amounts listed in Table 1 while heating to 60°C. Water heated to 60°C was added to the mixture to produce an emulsion. The emulsion was placed in a high-pressure emulsifier (product name "Econizer LABO02", manufactured by Sanmaru Machinery Industry Co., Ltd.) and homogenized, and then cooled to 40°C. The resulting component (A) was adjusted with ion-exchanged water to a solids content of 0.03% by mass, and the average primary particle size was calculated using a ZETASIZER (Nano-ZS) (manufactured by Malvern) (Table 1).

[0112] (2) Method for producing textile treatment composition The components shown in Tables 2 and 3 were mixed in the amounts shown in Tables 2 and 3.

[0113] (1) Preparation of test cloth (1-1) Preparation of test cloth 1 Calcium chloride dihydrate and magnesium chloride hexahydrate were added to deionized water sterilized by boiling at 100°C for 120 minutes to adjust the hardness to 5 DH° (Ca / Mg = 7 / 3, mass ratio). Sodium bicarbonate was then added to adjust the alkalinity to 80 mg / L, and the pH was adjusted to 7 with hydrochloric acid. 600 g of the water and 3 g of a 1% by mass aqueous solution of an anionic surfactant (linear alkylbenzene sulfonate salt having 10 to 14 carbon atoms) were placed in a stirring-type detergency tester (Tergotometer, MS-8212, manufactured by Ueshima Seisakusho). 30 g of a 6 cm x 6 cm cotton knitted cloth (Cotton Cloth 2003, purchased from Tanigashira Shoten) was then added. After stirring for 12 minutes, the mixture was dehydrated for 2 minutes in a two-tier washing machine (HITACHIPS-H35L). The test cloth after pre-washing was again placed in the agitator detergency tester, and 600 g of the prepared water and 0.14 g of the textile product treatment composition shown in Table 2 or Table 3 were added, followed by agitation treatment at 85 rpm for 5 minutes. After agitation, the cloth was again dehydrated in a two-layer washing machine for 2 minutes and then dried flat in a thermostatic chamber (23°C, 40%) for 12 hours.

[0114] (1-2) Preparation of test cloth 2 Calcium chloride dihydrate and magnesium chloride hexahydrate were added to deionized water sterilized by boiling at 100°C for 120 minutes to adjust the hardness to 5 DH° (Ca / Mg = 7 / 3, mass ratio). Sodium bicarbonate was then added to adjust the alkalinity to 80 mg / L, and the pH was adjusted to 7 with hydrochloric acid. 600 g of the water and 3 g of a 1% by mass aqueous solution of an anionic surfactant (linear alkylbenzene sulfonate salt having 10 to 14 carbon atoms) were added to a stirring-type detergency tester (Tergotometer, MS-8212, manufactured by Ueshima Seisakusho). 30 g of a 6 cm x 6 cm cotton knitted cloth (cotton cloth 2003, purchased from Tanigashira Shoten) was then added and stirred for 15 seconds. 0.14 g of a textile product treatment composition listed in Table 2 or Table 3 was then added and stirred at 85 rpm for 5 minutes. After stirring, the mixture was dehydrated for 2 minutes in a two-layer washing machine (HITACHIPS-H35L) and then dried flat in a constant temperature room (23°C, 40%) for 12 hours.

[0115] In Comparative Examples 1-5 and 2-5, test cloths 1 and 2 obtained by the same preparation method except that the textile product treatment compositions shown in Tables 2 and 3 were not added were used for the following evaluation.

[0116] (2) Evaluation Method (2-1) Stability evaluation The fabric product treatment compositions prepared as shown in Tables 2 and 3 were left to stand at room temperature (25°C) for one day, and then visually inspected for appearance and evaluated for the presence or absence of precipitates. If precipitates were found in the stability evaluation, the compositions were forcibly stirred to temporarily disperse them, and then used in the deodorizing performance evaluation described below.

[0117] (2-2) Antibacterial effect against Moraxella osloensis The bacteria used was Moraxella osloensis isolated from clothing. 0.4 g of test cloth treated with the textile product treatment composition of the present invention and 0.4 g of untreated test cloth were each infused with a bacterial solution (initial number of bacteria: 1.0 × 10 5CFU / mL) was inoculated into each test cloth, and static culture was performed at 37°C for 18 hours. Tests were performed on test cloth 1 and test cloth 2, and the results were designated as Deodorizing Evaluation 1 and Deodorizing Evaluation 2, respectively. 20 mL of LP dilution solution (manufactured by Nippon Pharmaceutical Co., Ltd.) was added, and ultrasonic waves were applied for 10 minutes to extract the bacteria. The extract was serially diluted and mixed on SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.), followed by static culture at 37°C (1 day). The number of colonies obtained was counted, and the common logarithm of the viable bacterial count obtained from each Example or Comparative Example was subtracted from the common logarithm of the viable bacterial count obtained from a test cloth not treated with the treatment composition of the present invention (logarithm). This was used as the antibacterial activity value, and the results were evaluated according to the following evaluation criteria. The evaluation of each treatment composition is shown in Table 2.

[0118] (2-3) Antibacterial effect against Micrococcosu aroeverae The bacteria used were Micrococcosu aroeverae isolated from clothing. 0.4 g of test cloth treated with the textile product treatment composition of the present invention and 0.4 g of untreated test cloth were each infused with a bacterial solution (initial number of bacteria: 1.0 × 10 5 CFU / mL) was inoculated into each test cloth, and static culture was performed at 37°C for 18 hours. Tests were performed on test cloth 1 and test cloth 2, and the results were designated as Deodorizing Evaluation 1 and Deodorizing Evaluation 2, respectively. 20 mL of LP dilution solution (manufactured by Nippon Pharmaceutical Co., Ltd.) was added, and ultrasonic waves were applied for 10 minutes to extract the bacteria. The extract was serially diluted and mixed on SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.), followed by static culture at 37°C (1 day). The number of colonies obtained was counted, and the common logarithm of the viable bacterial count obtained from each example or comparative example was subtracted from the common logarithm of the viable bacterial count obtained from a test cloth not treated with the treatment composition of the present invention (logarithm). This was used as the antibacterial activity value, and the results were evaluated according to the following evaluation criteria. The evaluation of each treatment composition is shown in Table 3.

[0119] ◎: Antibacterial activity value is 2.0 or higher 〇: Antibacterial activity value is 1.0 or more and less than 2.0 △: Antibacterial activity value is 0.5 or more and less than 1.0 ×: Antibacterial activity value is less than 0.5

[0120] [Table 1]

[0121] [Table 2]

[0122] [Table 3]

[0123] The textile product treatment compositions of Examples 1-1 to 1-6 in Table 2 were confirmed to have good stability, with no precipitation observed by visual observation, whereas the textile product treatment compositions of Comparative Examples 1-1 to 1-4 were confirmed to have precipitation by visual observation.

[0124] From Table 2, it was confirmed from the results of Examples 1-1 to 1-3 that the textile product treatment composition of the present invention provides a good deodorizing effect on textile products (Deodorizing Performance Evaluation 1). Furthermore, from the results of Examples 1-1 to 1-3, it was confirmed that the textile product treatment composition of the present invention provides a good deodorizing effect even on textile products on which residual rinsing of the textile product detergent composition remains (Deodorizing Performance Evaluation 2). In other words, it can be said that the textile product treatment composition of the present invention can provide high antibacterial properties to textile products.

[0125] From Table 2, the results of Examples 1-4 to 1-6 confirmed that the textile product treatment composition of the present invention, even when it is a fabric softener composition, provides a good deodorizing effect on textile products (Deodorizing Performance Evaluation 1). Furthermore, from the results of Examples 1-4 to 1-6, it was confirmed that the textile product treatment composition of the present invention, even when it is a fabric softener composition, provides a good deodorizing effect on textile products on which residual residue of a textile detergent composition remains (Deodorizing Performance Evaluation 2). In other words, it can be said that the textile product treatment composition of the present invention was able to provide high antibacterial properties to textile products.

[0126] The textile product treatment compositions of Examples 2-1 to 2-6 in Table 3 showed no precipitation by visual observation, confirming their good stability. On the other hand, precipitation was confirmed by visual observation of the textile product treatment compositions of Comparative Examples 2-1 to 2-4.

[0127] From Table 3, it was confirmed from the results of Examples 2-1 to 2-3 that the textile product treatment composition of the present invention provides a good deodorizing effect on textile products (Deodorizing Performance Evaluation 1). Furthermore, from the results of Examples 2-1 to 2-3, it was confirmed that the textile product treatment composition of the present invention provides a good deodorizing effect even on textile products on which residual rinsing of the textile product detergent composition remains (Deodorizing Performance Evaluation 2). In other words, it can be said that the textile product treatment composition of the present invention can provide high antibacterial properties to textile products.

[0128] From Table 3, it can be seen from the results of Examples 2-4 to 2-6 that the textile product treatment composition of the present invention, even when it is a fabric softener composition, provides a good deodorizing effect on textile products (Deodorizing Performance Evaluation 1). Furthermore, from the results of Examples 2-4 to 2-6, it can be seen from the results of Examples 2-4 to 2-6 that the textile product treatment composition of the present invention, even when it is a fabric softener composition, provides a good deodorizing effect on textile products on which residual residue of a textile detergent composition remains (Deodorizing Performance Evaluation 2). In other words, it can be said that the textile product treatment composition of the present invention was able to provide high antibacterial properties to textile products.

[0129] <Composition ingredients> Component (A) (a-1) Cetyl alcohol (manufactured by Kokyu Alcohol Kogyo Co., Ltd.) (a-3) Glyceryl behenate (Sunsoft No. 8100, manufactured by Taiyo Kagaku Co., Ltd.) (a-4) Sorbitan fatty acid (carbon number 18) diester (Sunsoft No. 63C, manufactured by Taiyo Kagaku Co., Ltd.) (a-5) Trimethylstearylammonium chloride aqueous dispersion (Cortamin 86W, manufactured by Kao Corporation) (b-1) Zinc oxide, average primary particle diameter 25 nm (Teika MZ-500, manufactured by Teika Corporation) (b-2) Silicone-treated zinc oxide fine particles, average primary particle diameter 25 nm (Teikan MZ-504R3M, manufactured by Teika Corporation) (b-3) Nano zinc oxide, average primary particle size 50 nm (ZnO-610, manufactured by Sumitomo Osaka Cement Co., Ltd.) (c) Benzoic acid alkyl (carbon number 12 to 15) ester (FinsolvTN, Finetex)

[0130] (B-1) Quaternary ammonium surfactant synthesized by the following synthesis method: surfactant described in JP 2018-44256 A

[0131] <Synthesis Example 1: Synthesis of component (B-1)> A palm oil-derived fatty acid with an acid value of 206.9 mg KOH / g was subjected to a dehydration esterification reaction with triethanolamine at a reaction molar ratio of 1.65 / 1 (fatty acid / triethanolamine) to obtain a condensate containing N,N-dialkanoyloxyethyl-N-hydroxyethylamine as the main component. The amine value of this condensate was then measured, and the condensate was quaternized using 0.95 equivalents of dimethyl sulfate according to a standard method to obtain a quaternary ammonium salt mixture (B-1) containing N,N-dialkanoyloxyethyl-N-hydroxyethyl-N-methylammonium methyl sulfate as the main component and 10% by mass of ethanol. Note that the term "alkanoyl" used here refers to the fatty acid residue of palm oil as the raw material, and therefore includes residues derived from unsaturated fatty acids as well as saturated fatty acids, such as alkenoyl. The production procedure and reaction conditions were as described in Synthesis Example 2 of JP-A No. 2010-209493.

[0132] (B-2) Component Sanizol B-50: Benzalkonium chloride (alkyl (C12-16) benzyldimethylammonium chloride, manufactured by Kao Corporation

[0133] (C) Nonionic surfactants Emulgen 129L (polyoxyethylene lauryl ether), manufactured by Kao Corporation (D) Component calcium chloride (E) Component Component (E-1): Fragrance composition (fragrance component 1) shown in Table 4 below Ingredient (E-2): Fragrance microcapsules (fragrance ingredient 2) manufactured by the following method: 1.7 g of diisobutylene-maleic anhydride copolymer (Demol EP, solids content 25%, Kao Corporation) was neutralized with hydrochloric acid and further diluted with ion-exchanged water to obtain an aqueous solution with a solids content of 3% and a pH of 4.3 (25°C). Next, 36 g of a fragrance composition having the following composition was added to 100 g of the diisobutylene-maleic anhydride copolymer aqueous solution, emulsified using a homomixer, and heated to 50°C. Next, an aqueous solution containing 12 g of partially methylolated melamine resin (trade name Cymel 385, solids content 80%, Cytec Industries Inc.) and 35 g of ion-exchanged water was added dropwise. The mixture was maintained at 50°C for 2 hours, then at 70°C for 1 hour, and then at 80°C for 3 hours to complete the encapsulation. The mixture was then allowed to cool, yielding a microcapsule slurry (E-2) with an average primary particle size of 7 μm and an active ingredient content of 30% by mass. In (E-2), the content of the fragrance composition having the following composition in the contents (core material) of the microcapsules was 80 mass %.

[0134] [Table 4]

Claims

1. A textile product treatment composition comprising particles (A) (hereinafter referred to as component (A)) containing the following component (a) and the following component (b), and water, The average particle size of the component (A) is 1 nm or more and 10 μm or less. Textile product treatment composition. Component (a): one or more organic compounds selected from the following (a-1) to (a-5): (a-1) Higher alcohol having 10 to 24 carbon atoms (a-2) Higher fatty acids having 10 to 24 carbon atoms (a-3) Aliphatic glyceryl ether having an aliphatic hydrocarbon group having 10 to 24 carbon atoms (a-4) Esters of fatty acids having 10 to 24 carbon atoms and polyhydric alcohols (a-5) A quaternary ammonium salt in which, among the groups bonded to the nitrogen atom, one to three are hydrocarbon groups having from 10 to 24 carbon atoms, and the remainder are alkyl groups having from 1 to 3 carbon atoms or hydroxyalkyl groups having from 1 to 3 carbon atoms. Component (b): Metal oxide

2. 2. The fiber product treatment composition according to claim 1, wherein the component (b) is at least one member selected from the group consisting of zinc oxide and titanium oxide.

3. 3. The fiber product treatment composition according to claim 1, wherein the average primary particle size of the component (b) is 0.1 nm or more and less than 1000 nm.

4. The textile product treatment composition according to any one of claims 1 to 3, wherein the component (A) further contains a liquid oil as a component (c).

5. The fiber product treatment composition according to any one of claims 1 to 4, wherein the component (c) is at least one oil selected from the group consisting of hydrocarbon oils, ester oils (excluding (a-4)), and silicone oils.

6. The component (A) comprises a shell phase containing the component (a); 6. The fiber product treatment composition according to claim 1, which has a core phase containing the component (b) inside the shell phase.

7. 7. The fiber product treatment composition according to claim 6, wherein the core phase further comprises component (c).

8. The textile product treatment composition according to any one of claims 1 to 7, which is an oil-in-water emulsion.

9. The textile product treatment composition according to any one of claims 1 to 8, further comprising a quaternary ammonium salt type surfactant (B) [hereinafter referred to as component (B)].

10. The textile product treatment composition according to claim 9, wherein the content of the component (B) is from 1% by mass to 30% by mass.

11. The textile product treatment composition according to any one of claims 1 to 10, further comprising a nonionic surfactant (C) [hereinafter referred to as component (C)].

12. The textile product treatment composition according to claim 11, wherein the content of the component (C) is from 1% by mass to 5% by mass.

13. A method for treating textile products, comprising washing the textile products with a detergent for textile products containing an anionic surfactant, and then contacting the textile products with the textile product treating composition according to any one of claims 10 to 12.

14. The method for treating a textile product according to claim 13, comprising the following steps 1 to 3: Step 1: A step of washing a textile product using washing water containing 1% by mass or more and 50% by mass or less of an anionic surfactant under conditions of a bath ratio [amount of washing water / mass of textile product] of 3 to 25. Step 2: After step 1, a step of removing the washing water used in step 1 from the textile product. Step 3: A step of contacting the textile product obtained in step 2 with the textile product treatment composition according to any one of claims 1 to 13.

Images