Water dispersible composition for fiber processing

Abstract

The present invention aims to provide a water-dispersible composition for fiber processing, which can obtain fiber products having excellent slip properties, hand feel and chalk mark resistance without impairing the functions of a fiber processing agent such as water repellency, durable water repellency and stain resistance. The present invention provides a water-dispersible composition for fiber processing, which contains a rosin-based resin as a component (A) and a nonionic surfactant as a component (B).

Description

Technical Field

[0001] The present invention relates to a water-dispersible composition for fiber processing. Background Art

[0002] Conventionally, in order to impart various functions such as water repellency and antifouling properties to fibers, fibers have been processed using various fiber processing agents in large numbers.

[0003] For example, as a method of imparting water repellency to fibers, water repellents are generally used for treatment. As water repellents, fluorine-based water repellents having fluorine atoms are widely known, and it is known that fiber products are imparted with water repellency on their surfaces by treating fiber products with the fluorine-based water repellents.

[0004] The fluorine-based water repellent is generally produced by polymerizing or copolymerizing a monomer having a fluoroalkyl group. Fiber products treated with the fluorine-based water repellent exhibit excellent water repellency, but since the monomer having a fluoroalkyl group is difficult to decompose, there are environmental problems.

[0005] Therefore, in recent years, research on non-fluorine-based water repellents that do not contain fluorine atoms is being conducted. For example, a water repellent is proposed in patent document 1, wherein it is composed of a specific non-fluorine-based polymer of (meth) acrylates with a carbon number of more than 12 as a monomer unit containing an ester part. In addition, a soft water repellent is proposed in patent document 2, wherein it contains amino-modified silicone and a multifunctional isocyanate compound. However, due to the use of these water repellents to implement processed fibers, the friction resistance between the fibers becomes very small, so there is a problem of decreased slippage (in clothes, etc., to prevent the performance of the seam misalignment phenomenon during wearing). In addition, since the above-mentioned processed fibers have a tendency to harden, it cannot be said that their feel is sufficient. In addition, in the case of bending or rubbing the above-mentioned processed fibers, there is also a problem that the water repellent coating on the fiber produces cracks or peeling, and the part is whitish due to the diffuse reflection of light, producing so-called chalk marks, thereby greatly damaging the appearance.

[0006] In addition, as another example of imparting functionality to fibers, antifouling processing can be mentioned. Conventionally, various antifouling processing methods have been proposed in order to prevent stains from adhering to fibers or to facilitate removal of attached stains.

[0007] As the above-mentioned antifouling treatment, for example, a non-fluorine-based antifouling (SG, Soil Guard; a property that makes it difficult for stain components to adhere to the fiber surface) treatment is known, which uses a silicone-based treatment agent or other stain-resistance imparting agent to cover the fiber surface. When the fiber is subjected to the SG treatment, liquid stains become difficult to adhere to the fiber surface. However, in such SG treatment, since the frictional resistance between the fibers is reduced, there is a problem that the slippage of the fiber is reduced and its feel is also deteriorated, similar to the above-mentioned water-repellent treatment.

[0008] Patent Document 3 proposes an antifouling agent in which polysaccharides and modified organic silicate particles are attached to fiber materials to improve SG properties. However, the slippage property of the fiber or the texture thereof is not considered.

[0009] Prior art literature

[0010] Patent Document 1: Japanese Patent Application Publication No. 2006-328624.

[0011] Patent document 2: Japanese Patent Application Publication No. 2004-059609.

[0012] Patent document 3: Japanese Patent Application Publication No. 2014-122435. Summary of the invention

[0013] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a water-dispersible composition for fiber processing which can obtain a fiber product having excellent slip properties, hand feel and chalk mark resistance without impairing the functions of a fiber processing agent such as water repellency, durable water repellency and stain resistance.

[0014] The present inventors have conducted intensive studies and have found that the above-mentioned problems can be solved by using a composition in which a rosin-based resin is dispersed in water using a nonionic surfactant. That is, the present invention relates to the following water-dispersible composition for fiber processing.

[0015] (1) A water dispersion composition for fiber processing, comprising a rosin-based resin as a component (A) and a nonionic surfactant as a component (B).

[0016] (2) The water dispersion composition for fiber processing according to the above (1), wherein the rosin-based resin as the component (A) has a softening point of 80 to 180°C.

[0017] (3) The water dispersion composition for fiber processing according to (1) or (2) above, wherein the rosin-based resin as the component (A) is a rosin ester.

[0018] (4) The water dispersion composition for fiber processing according to any one of (1) to (3) above, wherein the nonionic surfactant as the component (B) has an HLB (Hydrophile Lipophilic Balance) of 7 to 19.

[0019] (5) The water dispersion composition for fiber processing according to any one of (1) to (4) above, which is used for polyester fibers.

[0020] (6) The water-dispersible composition for fiber processing according to any one of (1) to (4) above, which is used for polyamide fibers.

[0021] (7) The water dispersion composition for fiber processing according to any one of (1) to (4) above, which is for cotton.

[0022] According to the fiber processing water dispersion composition of the present invention, when used in combination with a fiber processing agent, a fiber product having excellent slippage, hand feel and chalk mark resistance can be obtained without impairing the functions provided by the fiber processing agent, such as water repellency, durable water repellency and antifouling property. The above fiber processing water dispersion composition can be applied to various fiber processing agents, but is preferably used in a water repellent agent or a stain resistance imparting agent. In addition, the above fiber processing water dispersion composition is preferably used for polyester fiber or cotton. DETAILED DESCRIPTION

[0023] [Water dispersible composition for fiber processing]

[0024] The water dispersion composition for fiber processing (hereinafter, also simply referred to as the composition) of the present invention contains a rosin-based resin (A) (hereinafter, referred to as the component (A)) and a nonionic surfactant (B) (hereinafter, referred to as the component (B)).

[0025] <Rosin-based resin (A)>

[0026] (A) Component is not particularly limited, and various known substances can be used. (A) component includes, for example, natural rosins (gum rosin, tall oil rosin, wood rosin) derived from Masson pine, Slash pine, Merkus pine, Simao pine, Loblolly pine, longleaf pine, etc.; purified rosin obtained by refining natural rosin by vacuum distillation, steam distillation, extraction, recrystallization, etc. (hereinafter, natural rosin and purified rosin are collectively referred to as unmodified rosin); hydrogenated rosin obtained by hydrogenating the unmodified rosin; disproportionated rosin obtained by disproportionating the unmodified rosin; polymerized rosin obtained by polymerizing the unmodified rosin; α,β-unsaturated carboxylic acid-modified rosins such as acrylic rosin, maleated rosin, and fumarated rosin, or esters thereof (hereinafter, these esters are referred to as rosin esters), rosin phenolic resin, etc. (A) The component can be used alone or in combination of two or more.

[0027] The component (A) is preferably a rosin ester from the viewpoint of excellent fiber slippage, chalk mark resistance, hand feel and stability of the composition, and more preferably at least one selected from the group consisting of unmodified rosin ester, hydrogenated rosin ester, disproportionated rosin ester, polymerized rosin ester and α,β-unsaturated carboxylic acid-modified rosin ester. From the same viewpoint, hydrogenated rosin ester, disproportionated rosin ester, α,β-unsaturated carboxylic acid-modified rosin ester and unmodified rosin ester derived from South Asian pine are particularly preferred. Unmodified rosin ester, hydrogenated rosin ester, disproportionated rosin ester, polymerized rosin ester and α,β-unsaturated carboxylic acid-modified rosin ester are described below.

[0028] (Unmodified rosin ester)

[0029] Unmodified rosin ester is obtained by reacting the above-mentioned unmodified rosin with alcohols.

[0030] As for the unmodified rosin, unmodified rosin purified by a reduced pressure distillation method, a steam distillation method, an extraction method, a recrystallization method, or the like may also be used.

[0031] The reaction conditions of the unmodified rosin and alcohols are as follows: the unmodified rosin and alcohols may be reacted in the presence or absence of a solvent, with an esterification catalyst added as needed, at about 250 to 280° C. for about 1 to 8 hours.

[0032] The alcohols are not particularly limited, and examples thereof include monohydric alcohols such as methanol, ethanol, propanol, and stearyl alcohol; dihydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, neopentyl glycol, and dimerdiol; trihydric alcohols such as glycerol, trimethylolethane, and trimethylolpropane; tetrahydric alcohols such as pentaerythritol and diglycerol; hexahydric alcohols such as dipentaerythritol, etc. Among them, polyhydric alcohols having two or more hydroxyl groups are preferred, and glycerol and pentaerythritol are more preferred.

[0033] (Hydrogenated Rosin Ester)

[0034] The hydrogenated rosin ester is obtained by further reacting the hydrogenated rosin obtained by hydrogenating the above-mentioned unmodified rosin with alcohols to esterify the rosin.

[0035] As a method for obtaining the above-mentioned hydrogenated rosin, various known methods can be used to obtain it. Specifically, for example, it can be obtained by hydrogenating the above-mentioned unmodified rosin using known hydrogenation conditions. As hydrogenation conditions, for example, a method of heating the above-mentioned unmodified rosin under the conditions of about 2 to 20 MPa of hydrogen pressure and about 100 to 300°C in the presence of a hydrogenation catalyst, etc. In addition, it is preferred that the hydrogen pressure is set to about 5 to 20 MPa and the reaction temperature is set to about 150 to 300°C. As a hydrogenation catalyst, various known catalysts such as supported catalysts and metal powders can be used. As supported catalysts, palladium-carbon, rhodium-carbon, ruthenium-carbon, platinum-carbon, etc. can be cited. As metal powders, nickel, platinum, etc. can be cited. Among them, palladium, rhodium, ruthenium and platinum-based catalysts increase the hydrogenation rate of the above-mentioned unmodified rosin and shorten the hydrogenation time, so it is preferred. The amount of the hydrogenation catalyst used is usually about 0.01 to 5 parts by mass, preferably about 0.01 to 2 parts by mass, based on 100 parts by mass of the unmodified rosin.

[0036] The above-mentioned hydrogenation can also be carried out in a state where the above-mentioned unmodified rosin is dissolved in a solvent as required. The solvent used is not particularly limited, as long as it is a solvent that is inactive to the reaction and easily dissolves the raw materials or products. Specifically, for example, cyclohexane, n-hexane, n-heptane, decalin, tetrahydrofuran, dioxane, etc. can be used alone or in combination of two or more. There is no particular limitation on the amount of solvent used. Generally, it can be used in a range of 10% by mass or more and preferably 10 to 70% by mass relative to the above-mentioned unmodified rosin so that the solid content is more than 10% by mass and preferably about 10 to 70% by mass.

[0037] Furthermore, as the hydrogenated rosin, a rosin obtained by subjecting hydrogenated rosin to the above-mentioned purification may be used.

[0038] The reaction conditions of the hydrogenated rosin and alcohols are as follows: the hydrogenated rosin and alcohols may be reacted in the presence or absence of a solvent, with an esterification catalyst added as needed, at about 250 to 280° C. for about 1 to 8 hours.

[0039] The alcohols used in esterifying the hydrogenated rosin are the same as those mentioned above.

[0040] It should be noted that the order of the hydrogenation reaction and the esterification reaction is not limited to the above, and the hydrogenation reaction may be performed after the esterification reaction.

[0041] (Disproportionated rosin ester)

[0042] Disproportionated rosin ester is obtained by subjecting the above-mentioned unmodified rosin to a disproportionation reaction and further reacting the disproportionated rosin with an alcohol to esterify the rosin.

[0043] As a method for obtaining the above-mentioned disproportionated rosin, various known methods can be used to obtain it. For example, it is sufficient to heat and react the above-mentioned unmodified rosin in the presence of a disproportionation catalyst. As a disproportionation catalyst, for example, there can be cited various known catalysts such as palladium-carbon, rhodium-carbon, platinum-carbon and other supported catalysts; metal powders such as nickel and platinum; iodides such as iodine and iron iodide. The amount of the catalyst used is generally about 0.01 to 5 parts by mass, preferably about 0.01 to 1 part by mass, relative to 100 parts by mass of rosin as a raw material, and the reaction temperature is about 100 to 300°C, preferably about 150°C to 290°C.

[0044] Furthermore, as the disproportionated rosin, a rosin obtained by subjecting the disproportionated rosin to the above-mentioned purification may be used.

[0045] The reaction conditions of the disproportionated rosin and alcohols are as follows: the disproportionated rosin and alcohols may be reacted in the presence or absence of a solvent, with an esterification catalyst added as needed, at about 250 to 280° C. for about 1 to 8 hours.

[0046] The alcohol used when esterifying the disproportionated rosin is the same as described above.

[0047] It should be noted that the order of the disproportionation reaction and the esterification reaction is not limited to the above, and the disproportionation reaction may be performed after the esterification reaction.

[0048] (Polymerized rosin ester)

[0049] Polymerized rosin ester is obtained by reacting polymerized rosin with alcohols. Polymerized rosin is a rosin derivative containing dimerized resin acid.

[0050] As a method for producing polymerized rosin, a known method can be adopted. Specifically, for example, a method in which the above-mentioned unmodified rosin as a raw material is reacted in a solvent such as toluene or xylene containing a catalyst such as sulfuric acid, hydrogen fluoride, aluminum chloride, or titanium tetrachloride at a temperature of about 40 to 160° C. for about 1 to 5 hours can be cited.

[0051] Specific examples of polymerized rosin include resin-based polymerized rosin using gum rosin as the raw material (e.g., trade name "polymerized rosin B-140", manufactured by Xinzhou (Wuping) Forest Chemical Co., Ltd.), tall oil-based polymerized rosin using tall oil rosin (e.g., trade name "Sylvatac 140", manufactured by Arizona Chemical Company), and wood-based polymerized rosin using wood rosin (e.g., trade name "Dymerex", manufactured by Ashland).

[0052] In addition, as the polymerized rosin, rosin subjected to various treatments such as hydrogenation, disproportionation, or α,β-unsaturated carboxylic acid modification such as acrylic acid, maleic acid, and fumaric acid can also be used. In addition, various treatments can be used alone or in combination of two or more.

[0053] The reaction conditions of the polymerized rosin and alcohols are as follows: the polymerized rosin and alcohols may be reacted in the presence or absence of a solvent, with an esterification catalyst added as needed, at about 250 to 280° C. for about 1 to 8 hours.

[0054] The alcohol used in esterifying the polymerized rosin is the same as described above.

[0055] It should be noted that the order of the polymerization reaction and the esterification reaction is not limited to the above, and the polymerization reaction may be performed after the esterification reaction.

[0056] (α,β-Unsaturated carboxylic acid modified rosin ester)

[0057] The α,β-unsaturated carboxylic acid-modified rosin ester is obtained by esterifying a modified rosin (α,β-unsaturated carboxylic acid-modified rosin) obtained by subjecting the unmodified rosin or the disproportionated rosin to an addition reaction with an α,β-unsaturated carboxylic acid and further reacting the rosin with an alcohol.

[0058] The α,β-unsaturated carboxylic acid is not particularly limited, and various known α,β-unsaturated carboxylic acids can be used. Specifically, for example, acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, mucosonic acid, maleic anhydride, itaconic anhydride, citraconic anhydride, mucosonic anhydride, etc. can be cited. Among them, maleic acid, maleic anhydride, and fumaric acid are preferred. The amount of α,β-unsaturated carboxylic acid used is generally about 1 to 20 parts by mass, preferably about 1 to 3 parts by mass, relative to 100 parts by mass of the unmodified rosin or the disproportionated rosin, from the aspect of emulsification.

[0059] There is no particular limitation on the method for producing rosin modified with α,β-unsaturated carboxylic acid. For example, the method includes adding the α,β-unsaturated carboxylic acid to the unmodified rosin or the disproportionated rosin melted under heating, and reacting at a temperature of about 180 to 240°C for about 1 to 9 hours. In addition, the reaction can be carried out while blowing an inert gas such as nitrogen into a closed reaction system. In addition, in the reaction, for example, a Lewis acid such as zinc chloride, ferric chloride, tin chloride, or a known catalyst such as a Brønsted acid such as p-toluenesulfonic acid and methanesulfonic acid can also be used. The amount of these catalysts used is generally about 0.01 to 10% by mass relative to the unmodified rosin or the disproportionated rosin.

[0060] The obtained α,β-unsaturated carboxylic acid-modified rosin may contain a resin acid derived from the above-mentioned unmodified rosin or the above-mentioned disproportionated rosin in an amount of less than 10% by mass.

[0061] The reaction conditions of the α,β-unsaturated carboxylic acid-modified rosin and the alcohol are not particularly limited, and for example, alcohol is added to the α,β-unsaturated carboxylic acid-modified rosin melted under heating, and the reaction is carried out at a temperature of about 250 to 280° C. for about 15 to 20 hours. In addition, the above reaction can be carried out while blowing an inert gas such as nitrogen into a closed reaction system, and the above-mentioned catalyst can also be used.

[0062] The alcohol used in esterifying the α,β-unsaturated carboxylic acid-modified rosin is the same as described above.

[0063] (Physical Properties of Rosin-Based Resin (A))

[0064] There are no particular limitations on the physical properties of component (A). The softening point of component (A) is preferably about 80 to 180° C., more preferably about 100 to 140° C., and particularly preferably about 120 to 130° C., from the perspective of excellent fiber feel and composition stability. It should be noted that in this specification, the softening point is a value measured by the ring and ball method (JIS K 5902).

[0065] The hydroxyl value of the component (A) is preferably about 10 to 50 mgKOH / g from the perspective of excellent emulsification stability of the composition. In addition, the acid value of the component (A) is preferably about 0.5 to 30 mgKOH / g from the perspective of excellent emulsification stability. It should be noted that in this specification, the hydroxyl value and the acid value are values ​​measured according to JIS K 0070.

[0066] The weight average molecular weight of the component (A) is preferably about 500 to 3000, and more preferably about 1100 to 2000, from the viewpoint of excellent emulsification stability of the composition. In the present specification, the weight average molecular weight is a polystyrene conversion value obtained by gel permeation chromatography (GPC).

[0067] The hue of the component (A) is preferably less than 4 Gardner chromaticities, more preferably less than 150 Hazens, and particularly preferably less than 60 Hazens. When the hue of the component (A) is less than 4 Gardner chromaticities, the coloring (yellowing) of the fiber product treated with the water-dispersible composition for fiber processing of the present invention is suppressed over time. In addition, when the hue of the component (A) is of the Hazen grade, the coloring of the fiber product over time is further suppressed. It should be noted that in this specification, the hue is measured according to the Gardner chromaticity unit and the Hazen unit in accordance with JIS K0071-3.

[0068] <Nonionic surfactant (B)>

[0069] As component (B), there is no particular limitation as long as it is a nonionic surfactant, and various known nonionic surfactants can be used. In the water-dispersible composition of the present invention, when an anionic surfactant or a cationic surfactant is used instead of a nonionic surfactant (B), it is not preferred because the various functions of the fiber processing agent (water repellency, antifouling property, etc.) may be reduced or the stability thereof may be reduced when used in combination with the fiber processing agent. Component (B) may be used alone or in combination of two or more.

[0070] (B) component, for example, polyoxyethylene alkyl ethers, polyoxyethylene alkenyl ethers, polyoxyethylene alkylphenyl ethers, polyoxypolycyclic phenyl ethers, sorbitan higher fatty acid esters, polyoxyethylene sorbitan higher fatty acid esters, polyoxyethylene higher fatty acid esters, glycerol higher fatty acid esters, block copolymers of polyoxyalkylenes, etc., specifically, polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene stearyl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene styrylphenyl ether, sorbitan monolaurate, sorbitan trioleate, polyoxyethylene sorbitan monolaurate, polyoxyethylene monolaurate, polyoxyethylene monooleate, oleic acid monoglyceride, stearic acid monoglyceride, polyoxyethylene-polyoxypropylene block copolymers, etc.

[0071] The component (B) is preferably a block copolymer of polyoxyethylene alkyl ethers, polyoxyethylene alkenyl ethers, sorbitan higher fatty acid esters, polyoxyethylene sorbitan higher fatty acid esters, polyoxyethylene higher fatty acid esters, glycerol higher fatty acid esters, or polyoxyalkylene.

[0072] (Physical properties of nonionic surfactant (B))

[0073] There is no particular limitation on the physical properties of component (B). The HLB of component (B) is preferably 7 to 19, and particularly preferably about 12 to 15, from the perspective of excellent emulsification stability of component (A), stability of the fiber processing agent, water repellency and stain resistance. By making the HLB of component (B) 7 or more, the emulsification stability of component (A) and the stability of the fiber processing agent become better. In addition, by making the HLB 19 or less, the water repellency and stain resistance of the fiber processing agent become better. It should be noted that HLB is a value indicating the balance between the hydrophobicity and hydrophilicity of the surfactant, and takes a value of 1 to 20, with a smaller value indicating a stronger hydrophobicity and a larger value indicating a stronger hydrophilicity.

[0074] The amount of component (B) is not particularly limited, and is preferably about 1 to 20 parts by mass, more preferably about 5 to 10 parts by mass, relative to 100 parts by mass of component (A), in terms of solid content. By making the amount of component (B) 1 part by mass or more, reliable emulsification can be performed, and when used as a water repellent or a stain resistance imparting agent, the stability becomes better. In addition, by making it 20 parts by mass or less, it is difficult to damage the water repellency when used as a water repellent.

[0075] <Surfactant (C)>

[0076] The composition of the present invention may contain a surfactant (C) (hereinafter also referred to as component (C)) other than component (B) as necessary, within a range not impairing the effects of the present invention, in order to improve the dispersibility of the composition.

[0077] (C) component is not particularly limited as long as it is a substance other than (B) component, and various known emulsifiers can be used. Specifically, high molecular weight emulsifiers, low molecular weight anionic emulsifiers, low molecular weight cationic emulsifiers, etc. obtained by polymerizing monomers can be cited. These can be used alone or in combination of two or more. Among them, low molecular weight anionic emulsifiers are preferred from the aspect of excellent emulsification.

[0078] As the monomers used in the production of the above-mentioned high molecular weight emulsifier, for example, there can be mentioned (meth)acrylate monomers such as methyl (meth)acrylate and ethyl (meth)acrylate; monocarboxylic acid vinyl monomers such as (meth)acrylic acid and crotonic acid; dicarboxylic acid vinyl monomers such as maleic acid and maleic anhydride; sulfonic acid vinyl monomers such as vinyl sulfonic acid and styrene sulfonic acid; and salts of alkali metal salts, alkaline earth metal salts, ammonium salts, and organic bases of these various organic acids; (meth)acrylamide monomers such as N-hydroxymethyl (meth)acrylamide; nitrile monomers such as (meth)acrylonitrile; vinyl ester monomers such as vinyl acetate; hydroxyl-containing (meth)acrylate monomers such as 2-hydroxyethyl (meth)acrylate and 2-hydroxypropyl (meth)acrylate; methyl vinyl ether, glycidyl (meth)acrylate, urethane acrylate, α-olefins having 6 to 22 carbon atoms, vinyl pyrrolidone, and other monomers, etc. These can be used alone or in combination of two or more.

[0079] Examples of the polymerization method include solution polymerization, suspension polymerization, and emulsion polymerization using a reactive emulsifier other than the high molecular weight emulsifier described later, or a non-reactive emulsifier other than the high molecular weight emulsifier.

[0080] The weight average molecular weight of the high molecular weight emulsifier thus obtained is not particularly limited, but is generally about 1000 to 500000, and the above values ​​are preferred from the perspective of the adhesive properties of the obtained tackifying resin emulsion. The weight average molecular weight referred to here is a polyethylene oxide conversion value obtained by gel permeation chromatography (GPC).

[0081] Examples of reactive emulsifiers other than the high molecular weight emulsifiers include emulsifiers having a hydrophilic group such as a sulfonic acid group or a carboxyl group and a hydrophobic group such as an alkyl group or a phenyl group and having a carbon-carbon double bond in the molecule.

[0082] Examples of the low molecular weight anionic emulsifier include dialkyl sulfosuccinate salts, alkane sulfonates, α-olefin sulfonates, polyoxyethylene alkyl ether sulfosuccinate salts, polyoxyethylene styrylphenyl ether sulfosuccinate salts, naphthalenesulfonic acid formalin condensate, polyoxyethylene alkyl ether sulfate salts, polyoxyethylene dialkyl ether sulfate salts, polyoxyethylene trialkyl ether sulfate salts, and polyoxyethylene alkylphenyl ether sulfate salts.

[0083] Examples of the low molecular weight cationic emulsifier include tetraalkylammonium chlorides, trialkylbenzylammonium chlorides, alkylamine acetates, alkylamine hydrochlorides, oxyethylene alkylamines, polyoxyethylene alkylamines, and alkylamine acetates.

[0084] Emulsifiers other than the above-mentioned high molecular weight emulsifiers may be used alone or in combination of two or more kinds appropriately selected.

[0085] The amount of the component (C) used is preferably about 1 to 10 parts by mass, more preferably about 2 to 8 parts by mass, based on 100 parts by mass of the component (A) in terms of excellent emulsification, in terms of solid content.

[0086] The fiber processing water dispersion composition of the present invention may contain various additives such as defoamers, thickeners, fillers, antioxidants, water resistance agents, film-forming aids, and pH adjusters such as ammonia water or sodium bicarbonate as needed within the range not impairing the desired properties.

[0087] [Method for producing a water-dispersible composition for fiber processing]

[0088] The water dispersion composition for fiber processing of the present invention is obtained by emulsifying the component (A) in water in the presence of the component (B) and, if necessary, the component (C) (hereinafter, these are collectively referred to as "emulsifier").

[0089] The emulsification method is not particularly limited, and a known emulsification method such as a high-pressure emulsification method and a phase inversion emulsification method can be adopted.

[0090] The high-pressure emulsification method is a method in which component (A) is preliminarily mixed with the emulsifier and water, and then microemulsified using a high-pressure emulsifier, and then the solvent is removed as needed. Component (A) can be made into a liquid state by heating alone, heating after dissolving in a solvent, or mixing with a non-volatile substance such as a plasticizer and heating. Examples of the solvent include organic solvents that can dissolve component (A), such as toluene, xylene, methylcyclohexane, and ethyl acetate.

[0091] The phase inversion emulsification method is a method in which component (A) is heated and melted, and then surfactant / water is added with stirring to first form a W / O emulsion, and then the phase is inverted into an O / W emulsion by adding water, changing the temperature, etc.

[0092] [Physical properties and uses of water-dispersible composition for fiber processing]

[0093] The physical properties of the water dispersion composition for fiber processing of the present invention are not particularly limited. The solid content concentration of the water dispersion composition for fiber processing is not particularly limited, and it is usually used after being appropriately adjusted to a solid content of about 10 to 65% by mass. In addition, the volume average particle size of the water dispersion composition for fiber processing is usually about 0.1 to 2 μm, and most of it is uniformly dispersed as particles of less than 1 μm, but from the perspective of storage stability, it is preferably less than 0.7 μm. In addition, the water dispersion composition for fiber processing has a white to milky white appearance, a pH of about 2 to 10, and a viscosity of about 10 to 1000 mPa·s (25°C, solid content concentration 50%).

[0094] The fiber processing water dispersion composition of the present invention can obtain fibers with excellent slip, feel and chalk mark resistance by combining various fiber processing agents in various fiber processing. The fiber processing agent is not particularly limited, but is preferably a water repellent or a stain resistance imparting agent.

[0095] The amount of the fiber processing water dispersion composition of the present invention is not particularly limited, but is preferably about 1 to 20% by mass, more preferably about 1 to 10% by mass, relative to 100% by mass of the fiber processing agent. By making the above amount 1% by mass or more, the slippage of the fiber becomes more excellent. In addition, by making the above amount 20% by mass or less, the feel and chalk mark resistance of the fiber become more excellent. In addition, when a water repellent or a stain resistance imparting agent is used, it is preferred because the water repellency and stain resistance functions can be better maintained.

[0096] The water repellent and the stain resistance imparting agent are not particularly limited, and various known substances can be used. The water repellent, the stain resistance imparting agent, and the fiber are described below.

[0097] <Water repellent>

[0098] The water repellent is not particularly limited, but is preferably a non-fluorine-based water repellent from the viewpoint of environment.

[0099] The above-mentioned non-fluorine-based water repellents include, for example, compounds containing long-chain hydrocarbon groups in the molecule. The compound containing a long-chain hydrocarbon group in the molecule is not particularly limited, but is preferably a (meth)acrylate polymer obtained by reacting a monomer containing a (meth)acrylate containing a long-chain hydrocarbon group. The above-mentioned long-chain hydrocarbon group is preferably an alkyl or alkenyl group having 12 to 24 carbon atoms from the perspective of excellent water repellency. The above-mentioned alkyl or alkenyl group may be straight-chain or branched. In addition, as the above-mentioned monomer other than the (meth)acrylate containing a long-chain hydrocarbon group, for example, (meth)acrylates other than the (meth)acrylate containing a long-chain hydrocarbon group, (meth)acrylamide, (meth)acrylic acid, (meth)acrylonitrile, styrene, α, β-unsaturated dicarboxylic acid (anhydride), etc.

[0100] Examples of the long-chain hydrocarbon group-containing (meth)acrylate include lauryl (meth)acrylate, tridecyl (meth)acrylate, tetradecyl (meth)acrylate, pentadecyl (meth)acrylate, palmityl (meth)acrylate, heptadecyl (meth)acrylate, stearyl (meth)acrylate, nonadecyl (meth)acrylate, eicosyl (meth)acrylate, heneicosyl (meth)acrylate, docosyl (meth)acrylate, tricosyl (meth)acrylate, tetracosyl (meth)acrylate, isododecyl (meth)acrylate, isotridecyl (meth)acrylate, isotetradecyl (meth)acrylate, isopentadecyl (meth)acrylate, isohexadecyl (meth)acrylate, isoheptadecyl (meth)acrylate, and isostearyl (meth)acrylate.

[0101] As commercially available products of the above-mentioned non-fluorine-based water repellent, for example, there can be mentioned "NeoSeed (English name: NeoSeed)" (registered trademark) NR-90 (manufactured by Nikka Chemical Co., Ltd.), NR-158 (manufactured by Nikka Chemical Co., Ltd.), TH-44 (manufactured by Nikka Chemical Co., Ltd.), Parazin HC86 (manufactured by Keihin Chemicals Co., Ltd.), Parazin HC200 (manufactured by Keihin Chemicals Co., Ltd.), PW-182 (manufactured by Yamato Chemicals Co., Ltd.), and Parazin HC86 (manufactured by Keihin Chemicals Co., Ltd.). Co., Ltd.), “PHOBOL” (registered trademark) RSH (manufactured by Huntsman Japan Ltd.), “PARAGIUM” (registered trademark) ECO-500 (manufactured by Ohara Chemical Co., Ltd.), NX018 (manufactured by Nanotech Co., Ltd.), ZERAN R-3 (manufactured by Huntsman Japan Ltd.) and PM-3705 (manufactured by 3M Co., Ltd.), etc.

[0102] <Anti-fouling agent>

[0103] The stain resistance imparting agent is not particularly limited. Examples of the stain resistance imparting agent include non-fluorine-based compounds, and specifically, silicone-based compounds.

[0104] Examples of the silicone-based compound include Geranex SH (English name: Geranex SH) (Matsumoto Oil & Fats Pharmaceutical Co., Ltd.), Geranex 600E (English name: DRYPON 600E) (manufactured by Nikka Chemical Co., Ltd.), RIKEN PALAN SG-54 (English name: RIKEN PALAN SG-54) (Miki Riken Industrial Co., Ltd.), RIKEN SG-54 (English name: Light silicone, light silicone) P-290E (Hokuhiro Chemical Co., Ltd. (Hokuhiro Chemical Co., Ltd.)), POLON MR (English name: POLON MR) (Shin-Etsu Chemical Industry Co., Ltd.), POLON MF-49 (Shin-Etsu Chemical Co., Ltd.), NeoSeed NR8000 (Nikka Chemical Co., Ltd.), KF-96 series (Shin-Etsu Chemical Co., Ltd.), KF8005 (Shin-Etsu Chemical Co., Ltd.), SF-8417 (Dow Corning Toray Corporation), MQ-1600 (Dow Corning Toray Corporation), etc.

[0105] <Fiber>

[0106] The fiber may be any natural fiber or chemical fiber. As natural fibers, for example, plant fibers such as cotton, hemp, flax, coconut, and rush can be cited; animal fibers such as wool, goat hair, mohair, cashmere, camel hair, and silk can be cited; mineral fibers such as asbestos can be cited. As chemical fibers, for example, inorganic fibers such as rock fibers, metal fibers, graphite, silica, and titanates can be cited; regenerated cellulose fibers such as rayon, cuprammonium fibers, viscose fibers, polynosic fibers, and purified cellulose fibers can be cited; melt-spun cellulose fibers; protein fibers such as milk protein and soy protein; regenerated / semi-synthetic fibers such as regenerated silk and alginate fibers; synthetic fibers such as polyamide fibers, polyester fibers, cationic dyeable polyester fibers, polyvinyl fibers, polyacrylic alcohol fibers, polyurethane fibers, acrylic fibers, polyethylene fibers, polyvinylidene fibers, and polystyrene fibers can be cited. In addition, two or more of these fibers can also be compounded (blended, co-woven, interwoven, cross-woven, etc.).

[0107] Polyester fibers include polylactic acid (PLA) fibers including polyethylene terephthalate (PET) fibers, polytrimethylene terephthalate (PTT) fibers, polybutylene terephthalate (PBT) fibers, polypropylene terephthalate (PPT) fibers, polyethylene naphthalate (PEN) fibers, polyarylate fibers, and other fibers composed of polymers formed by condensation reaction to form ester bonds. Fibers composited with polyester fibers include synthetic fibers or natural fibers such as cellulose fibers, polyamide fibers, and polyurethane fibers.

[0108] Polyamide fiber refers to a fiber that must contain polyamide and can be composited, and examples thereof include nylon 6, nylon 66, nylon 610, nylon 11, nylon 4, nylon 7, aromatic nylon (aromatic polyamide), etc. Polyamide is generally obtained by polycondensation reaction to form amide bonds.

[0109] Examples of the form of the fiber include woven fabric, knitted fabric, cloth, thread, cheese, skein, and nonwoven fabric.

[0110] The water-dispersible composition for fiber processing of the present invention is preferably used for polyester fibers, polyamide fibers, and cotton. In particular, polyester fibers and cotton are preferred.

[0111] <Fiber processing>

[0112] There is no particular limitation on the method for processing the above-mentioned fibers using the water-dispersible composition for fiber processing of the present invention and the above-mentioned fiber processing agent, and examples thereof include processing methods such as dipping, spraying, and coating, or processing methods by a cleaning method, etc. In addition, it is preferred that after the water-dispersible composition for fiber processing and the above-mentioned fiber processing agent are attached to the fibers, they are dried to remove water.

[0113] In the above processing, the total amount of the fiber processing water dispersion composition and the above fiber processing agent attached to the fiber can be appropriately adjusted according to the degree of the required function, but is preferably adjusted to 0.1 to 10% by mass, more preferably 0.5 to 2% by mass, based on the solid content of the fiber. If the above total amount is less than 0.1% by mass, it is difficult to show the effect, and if it exceeds 10% by mass, the cost-effectiveness becomes low.

[0114] After processing the fibers using the water dispersion composition for fiber processing of the present invention and the above-mentioned fiber processing agent, it is preferred to appropriately perform heat treatment. The temperature conditions are not particularly limited, but are usually about 110 to 180°C.

[0115] The uses of the fibers subjected to the above-mentioned processing include objects to which water repellency and stain resistance are imparted, for example, clothing such as coats, uniforms, and sportswear; sanitary materials such as masks, gauze, and diapers; vehicle interior materials for automobiles, airplanes, railways, and ships; bedding such as quilts, mattresses, sheets, pillows, quilt covers, blankets, and towel blankets; interior decorations such as curtains, blinds, sofas, chairs, cushions, wallpaper, carpets, felt, tablecloths, cushions, and partitions; industrial materials such as stage curtains, black curtains, engineering tarpaulins, tents, and filters, etc.

[0116] As for the use of the fiber subjected to the above processing, since it has various functions such as excellent water repellency, washing durability and stain resistance, as well as a soft feel, it is particularly suitable for use in clothing or bedding called outerwear, specifically, it is suitable for use in fiber products such as down jacket covers, coats, jackets, windbreakers, blouses, formal shirts, skirts, trousers, gloves, hats, quilt covers, quilt drying covers, curtains or tents, etc., clothing products and non-clothing products.

[0117] Example

[0118] Hereinafter, the present invention will be described in further detail by showing examples of the present invention, but the present invention is not limited to these examples. It should be noted that "parts" and "%" in the examples represent "parts by mass" and "mass %", respectively.

[0119] <Production of rosin-based resin (A)>

[0120] Production Example 1

[0121] Into a reaction vessel equipped with a stirring device, a condenser, a thermometer, and a nitrogen inlet pipe / steam inlet pipe, 100 parts of disproportionated rosin (trade name "RONDIS R", manufactured by Arakawa Chemical Industries, Ltd., acid value 160, softening point 70°C) and 3 parts of fumaric acid were added, and reacted at 220°C for 2 hours under a nitrogen stream. Then, 10.7 parts of pentaerythritol and 1.5 parts of glycerol were added, and reacted at 250°C for 2 hours under a nitrogen stream. The temperature was further raised to 280°C and reacted for 12 hours under the same temperature condition to complete esterification. Thereafter, the pressure in the reaction vessel was reduced to remove water and the like, thereby obtaining a rosin-based resin (A1) (hereinafter referred to as component (A1)).

[0122] Production Example 2

[0123] Into the same reaction vessel as in Example 1, 100 parts of gum rosin (acid value 190 mgKOH / g, softening point 80°C) from Indonesia and 12.4 parts of pentaerythritol were added, and the mixture was reacted at 250°C for 2 hours under a nitrogen stream, and then the temperature was further raised to 280°C and reacted for 12 hours under the same temperature condition to complete esterification. Thereafter, the pressure in the reaction vessel was reduced to remove water and the like, thereby obtaining a rosin-based resin (A2) (hereinafter referred to as component (A2)).

[0124] Production Example 3

[0125] Into the same reaction vessel as in Example 1, 100 parts of disproportionated rosin (trade name "RONDIS R", manufactured by Arakawa Chemical Industries, Ltd., acid value 160, softening point 70°C) and 11.6 parts of glycerol were added, and reacted at 250°C for 2 hours under a nitrogen stream, and then the temperature was further raised to 280°C and reacted for 12 hours under the same temperature condition to complete esterification. Thereafter, the pressure in the reaction vessel was reduced to remove water and the like, thereby obtaining a rosin-based resin (A3) (hereinafter referred to as component (A3)).

[0126] Production Example 4

[0127] Into the same reaction vessel as in Example 1, 100 parts of Chinese gum rosin (CG-WW) and 1 part of fumaric acid were added, and the mixture was reacted at 220°C for 2 hours under a nitrogen stream. Then, 12.7 parts of pentaerythritol were added and the mixture was reacted at 250°C for 2 hours. The mixture was then heated to 280°C and reacted at the same temperature for 12 hours to complete esterification. Thereafter, the reaction vessel was depressurized to remove water and the like, thereby obtaining a rosin-based resin (A4) (hereinafter referred to as component (A4)).

[0128] Production Example 5

[0129] Into the same reaction vessel as in Example 1, 100 parts of polymerized rosin (trade name "ARDYME R-140", manufactured by Arakawa Chemical Industries, Ltd., acid value 140, softening point 140°C), 11.7 parts of pentaerythritol, and 0.6 parts of glycerol were added, and reacted at 250°C for 2 hours under a nitrogen stream. The temperature was then raised to 280°C and reacted for 12 hours under the same temperature condition to complete esterification. Thereafter, the pressure in the reaction vessel was reduced to remove water and the like, thereby obtaining a rosin-based resin (A5) (hereinafter referred to as component (A5)).

[0130] Production Example 6

[0131] Into the same reaction vessel as in Example 1, 50 parts of polymerized rosin (trade name "ARDYME R-140", manufactured by Arakawa Chemical Industries, Ltd., acid value 140, softening point 140°C) and 50 parts of CG-WW were added, followed by 11.1 parts of pentaerythritol and 0.5 parts of glycerol. The mixture was reacted at 250°C for 2 hours under a nitrogen stream, and then the temperature was further raised to 280°C and reacted for 12 hours under the same temperature condition to complete esterification. Thereafter, the pressure in the reaction vessel was reduced to remove water and the like, thereby obtaining a rosin-based resin (A6) (hereinafter referred to as component (A6)).

[0132] The softening point (Sp (°C)) of the rosin-based resin in each production example was measured by the ring and ball method of JIS K 5902. The results are shown in Table 1.

[0133] The acid value and hydroxyl value of the rosin-based resin in each Production Example were measured in accordance with JIS K 0070. Table 1 shows the results.

[0134] (Measurement of weight average molecular weight (Mw))

[0135] The weight average molecular weight (Mw) of the rosin-based resins of Production Examples 1 to 6 was calculated from polystyrene-equivalent values ​​obtained by gel permeation chromatography (GPC) from a calibration curve of standard polystyrene. The results are shown in Table 1. The GPC method was measured under the following conditions.

[0136] Analytical device: HLC-8320 (manufactured by Tosoh Corporation).

[0137] Chromatographic column: TSKgelSuperHM-L×3.

[0138] Eluent: tetrahydrofuran.

[0139] Injection sample concentration: 5 mg / mL.

[0140] Flow rate: 0.6mL / min.

[0141] Injection volume: 40 μL.

[0142] Column temperature: 40°C.

[0143] Detector: RI.

[0144] Table 1

[0145]

[0146] [Preparation of water-dispersible composition for fiber processing]

[0147] Example 1

[0148] After 100 parts of the component (A1) of Production Example 1 was dissolved in 70 parts of toluene at 80°C for 3 hours, 10 parts of EMALEX630 (nonionic surfactant, HLB15, manufactured by Nippon Emulsion Co., Ltd.) and 140 parts of water were added in terms of solid content, and stirred for 1 hour. Then, high-pressure emulsification was performed under a pressure of 30 MPa using a high-pressure emulsifier (manufactured by Manton Gaulin Co., Ltd.) to obtain an emulsion. Then, the mixture was stirred at 70°C and 2.93×10 -2 The reduced pressure distillation was carried out for 6 hours at 400 MPa to obtain a fiber processing water dispersion composition having a solid content of 30%.

[0149] Example 2

[0150] Except that the component (A1) in Example 1 was replaced by the component (A2) in Production Example 2, the same procedure was carried out to obtain a water dispersion composition for fiber processing.

[0151] Example 3

[0152] Except that the component (A1) in Example 1 was replaced by the component (A3) in Production Example 3, the same procedure was carried out to obtain a water dispersion composition for fiber processing.

[0153] Example 4

[0154] Except that the component (A1) in Example 1 was replaced by the component (A4) in Production Example 4, the same procedure was carried out to obtain a water dispersion composition for fiber processing.

[0155] Example 5

[0156] Except that the component (A1) in Example 1 was replaced by the component (A5) in Production Example 5, the same procedure was carried out to obtain a water dispersion composition for fiber processing.

[0157] Example 6

[0158] Except that the component (A1) in Example 1 was replaced by the component (A6) in Production Example 6, the same procedure was carried out to obtain a water dispersion composition for fiber processing.

[0159] Example 7

[0160] The same method was followed to obtain a water dispersion composition for fiber processing except that the component (A1) in Example 1 was replaced with a hydrogenated rosin ester (trade name "KE-359", manufactured by Arakawa Chemical Industries, Ltd.) (hereinafter referred to as the component (A7)). It should be noted that the softening point of the component (A7) was 95° C., the acid value was 15 mgKOH / g, the hydroxyl value was 44 mgKOH / g, the weight average molecular weight (Mw) was 1231, and the color tone was 50 Hasen.

[0161] Example 8

[0162] A fiber processing water dispersion composition was obtained in the same manner as in Example 1 except that Emulgen 220 (nonionic surfactant, HLB 14.2, manufactured by Kao Chemical Co., Ltd.) was used instead of Emalex 630 in Example 1.

[0163] Example 9

[0164] A fiber processing water dispersion composition was obtained in the same manner as in Example 5 except that Emulgen 220 (nonionic surfactant, HLB 14.2, manufactured by Kao Chemical Co., Ltd.) was used instead of Emalex 630.

[0165] Example 10

[0166] A dispersion composition for fiber processing water was obtained in the same manner as in Example 1 except that EMALEX 630 was replaced with NOIGEN XL-61 (nonionic surfactant, HLB 12.5, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.).

[0167] Embodiment 11

[0168] A water dispersion composition for fiber processing was obtained in the same manner as in Example 1 except that Emulgen 103 (nonionic surfactant, HLB 8.1, manufactured by Kao Chemical Co., Ltd.) was used instead of Emalex 630.

[0169] Comparative Example 1

[0170] A dispersion composition for fiber processing water was obtained in the same manner as in Example 5 except that 5 parts of CATIOGEN TMP (cationic surfactant, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) was used instead of EMALEX 630.

[0171] (Emulsion stability)

[0172] In each of the Examples and Comparative Examples, the workability (foaming or generation of agglomerates) when each rosin-based resin was emulsified was visually observed and judged according to the following criteria, which are shown in Table 2. In addition, when the characteristics are slightly good, "+" is added to the following criteria, and when the characteristics are slightly poor, "-" is added to the criteria.

[0173] ◎: Almost no foaming or agglomerates were generated, and the workability was excellent.

[0174] ○: Little foaming or agglomerates were generated, and the workability was good.

[0175] △: Slightly more foaming or generation of aggregates was observed, and the workability was slightly poor.

[0176] ×: A lot of foaming or agglomerates were observed, and the workability was poor.

[0177] Table 2

[0178]

[0179] [Preparation of non-fluorine-based water repellent composition]

[0180] Evaluation Example 1

[0181] 95 parts of PM-3705 (manufactured by 3M Co.) as a non-fluorine-based water repellent was mixed with 5 parts (solid content conversion) of the water dispersion composition for fiber processing of Example 1, and further diluted with water to prepare a non-fluorine-based water repellent composition having a solid content of 5% by mass.

[0182] Evaluation Example 2

[0183] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water-dispersible composition for fiber processing of Example 2 was used as the water-dispersible composition for fiber processing.

[0184] Evaluation Example 3

[0185] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 3 was used as the water dispersible composition for fiber processing.

[0186] Evaluation Example 4

[0187] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 4 was used as the water dispersible composition for fiber processing.

[0188] Evaluation Example 5

[0189] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water-dispersible composition for fiber processing of Example 5 was used as the water-dispersible composition for fiber processing.

[0190] Evaluation Example 6

[0191] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water-dispersible composition for fiber processing of Example 6 was used as the water-dispersible composition for fiber processing.

[0192] Evaluation Example 7

[0193] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 7 was used as the water dispersible composition for fiber processing.

[0194] Evaluation Example 8

[0195] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 8 was used as the water dispersible composition for fiber processing.

[0196] Evaluation Example 9

[0197] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 9 was used as the water dispersible composition for fiber processing.

[0198] Evaluation Example 10

[0199] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 10 was used as the water dispersible composition for fiber processing.

[0200] Evaluation Example 11

[0201] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the water dispersible composition for fiber processing of Example 11 was used as the water dispersible composition for fiber processing.

[0202] Comparative Evaluation Example 1

[0203] A non-fluorine-based water repellent composition was obtained in the same manner as in Evaluation Example 1, except that the fiber processing water dispersion composition of Comparative Example 1 was used as the fiber processing water dispersion composition.

[0204] (Preparation of test pieces)

[0205] <For water repellency evaluation>

[0206] The polyester fabric was immersed in the non-fluorine-based water repellent composition obtained in Evaluation Example 1 and squeezed using a mangle. Thereafter, the polyester fabric with the composition attached was dried using a pin tenter at 120°C for 2 minutes to obtain a water repellent treated fiber (polyester fabric test piece).

[0207] (Evaluation Examples 2 to 11 and Comparative Evaluation Example 1)

[0208] In Evaluation Example 1, except that the type of the water dispersion composition for fiber processing was changed to that shown in Table 3, water-repellent fibers were produced in the same manner as in Evaluation Example 1.

[0209] (Water repellency: spray test)

[0210] The water repellency of the water repellent treated fiber was evaluated by the spray method of JIS-L-1092 (AATCC-22). The results are shown in Table 3. The water repellency is represented by the water repellency number as described below, and the larger the score, the better the water repellency. The results were evaluated by visual observation according to the following grades.

[0211] Water repellency: Status

[0212] 5: There is no moisture attached to the surface.

[0213] 4: The surface is slightly wet.

[0214] 3: The surface is partially wet.

[0215] 2: The surface is wet.

[0216] 1: The entire surface is wet.

[0217] 0: Both the front and back surfaces are completely wet.

[0218] (Test of washing durable water repellency)

[0219] The water-repellent treated fiber was washed 10 times (HL10) in a washing liquid at 40°C according to JIS L-0217 103 and then dried using a drum (at 60°C for 30 minutes) to obtain a test piece for washing durability evaluation. The same method as the spray test was used to evaluate the washing durability water repellency. The results are shown in Table 3.

[0220] (Slippage test)

[0221] The water-repellent treated fiber was tested by slipping the warp yarn under a load of 117.2 N (12 kgw) according to JIS L 1096-99.8.21.1 seam slippage method B, and the slippage resistance was measured to evaluate the seam slippage property. The results are shown in Table 3. The smaller the value, the better the seam slippage property.

[0222] (Hand feel test)

[0223] The water-repellent treated fiber was evaluated for feel in the following five grades. The evaluation was performed by five testers, and the average value was calculated. The results are shown in Table 3.

[0224] 1: Very hard.

[0225] 2: Hard.

[0226] 3: Slightly hard.

[0227] 4: Soft.

[0228] 5: Very soft.

[0229] (Chalk mark test)

[0230] A plastic stick with a tip diameter of 5 mm was pressed on the water-repellent treated fiber and drawn, and the trace was visually observed to see whether it remained on the cloth (so-called chalk mark test). The chalk mark resistance was evaluated in 5 levels as follows. The results are shown in Table 3.

[0231] 1: Found clear traces.

[0232] 2: Find traces.

[0233] 3: Slightly found traces.

[0234] 4: Almost no traces were found.

[0235] 5: No trace at all.

[0236] Table 3

[0237]

[0238] [Preparation of non-fluorine-based antifouling agent composition]

[0239] Evaluation Example 12

[0240] 95 parts of Geranex SH (manufactured by Matsumoto Oil & Pharmaceutical Co., Ltd.) as a non-fluorine-based stain resistance imparting agent was mixed with 5 parts (solid content conversion) of the fiber processing water dispersion composition of Example 1, and further diluted with water to prepare a non-fluorine-based antifouling agent composition with a solid content of 5% by mass.

[0241] Evaluation Example 13

[0242] A non-fluorine-based antifouling agent composition was obtained in the same manner as in Evaluation Example 12, except that the water-dispersible composition for fiber processing of Example 2 was used as the water-dispersible composition for fiber processing.

[0243] Evaluation Example 14

[0244] A non-fluorine-based antifouling agent composition was obtained in the same manner as in Evaluation Example 12, except that the water-dispersible composition for fiber processing of Example 3 was used as the water-dispersible composition for fiber processing.

[0245] Evaluation Example 15

[0246] A non-fluorine-based antifouling agent composition was obtained in the same manner as in Evaluation Example 12, except that the water-dispersible composition for fiber processing of Example 7 was used as the water-dispersible composition for fiber processing.

[0247] Comparative Evaluation Example 2

[0248] A non-fluorine-based antifouling agent composition was obtained in the same manner as in Evaluation Example 12, except that the fiber processing water dispersion composition of Comparative Example 1 was used as the fiber processing water dispersion composition.

[0249] (Preparation of test pieces)

[0250] <For evaluation of antifouling properties>

[0251] The polyester fabric was immersed in the non-fluorine-based antifouling agent composition obtained in Evaluation Example 12 and squeezed using a mangle. The polyester fabric to which the treatment liquid adhered was then dried using a pin tenter at 120°C for 2 minutes to obtain an antifouling treated fiber (polyester fabric test piece).

[0252] (Evaluation Examples 13 to 15 and Comparative Evaluation Example 2)

[0253] In Evaluation Example 12, except that the type of the water dispersion composition for fiber processing was changed to that shown in Table 4, antifouling treated fibers were produced and evaluated in the same manner as in Evaluation Example 12. The results are shown in Table 4.

[0254] (Stain resistance (SG property): Liquid stain test)

[0255] According to JIS-L-1919B method (spray method), 100 ml of the stain component (a 1:1 mixture of 0.1% Edible Red No. 2 and 10.0% sucrose) was dispersed on the above-mentioned anti-fouling processed fiber (20 cm × 20 cm), and the contaminant was absorbed using a filter paper with a diameter of 11 cm. After leaving it for about 1 minute, it was dried at room temperature and the anti-fouling property (SG property) was evaluated. The results were evaluated visually according to the following grades. The results are shown in Table 4.

[0256] Pollution difficulty: status

[0257] 5: The state where there is no adhesion on the surface.

[0258] 4: The surface is slightly adhered.

[0259] 3: The surface shows a partially adhered state.

[0260] 2: The state of adhesion is shown on the surface.

[0261] 1: The entire surface shows an adhered state.

[0262] 0: Both the front and back surfaces are completely wetted.

[0263] (Test of washing durability and antifouling properties (SG properties))

[0264] The washing durability antifouling property (washing durability SG property) was evaluated in the same manner as the liquid stain evaluation except that the stain-resistant fiber was subjected to 10 washing treatments according to JIS-L-0217 103 method as a test piece for washing durability evaluation.

[0265] (Slippage test)

[0266] The antifouling treated fiber was tested in accordance with JIS L 1096-99.8.21.1 Seam Slippage Method B by causing the warp yarn to slip under a load of 117.2 N (12 kgw) to evaluate the seam slippage property.

[0267] (Hand feel test)

[0268] The hand feel of the antifouling treated fiber was evaluated according to the following five levels. The evaluation was performed by five testers, and the average value was calculated. The results are shown in Table 4.

[0269] 1: Very hard.

[0270] 2: Hard.

[0271] 3: Slightly hard.

[0272] 4: Soft.

[0273] 5: Very soft.

[0274] Table 4

[0275]

Claims

1. A water-dispersible composition for fiber processing, wherein: The water dispersion composition for fiber processing contains a rosin-based resin as a component (A) and a nonionic surfactant as a component (B). The rosin resin as the component (A) has a hydroxyl value of 10 to 50 mgKOH / g. The HLB of the nonionic surfactant as the component (B) is 12-15.

2. The water-dispersible composition for fiber processing according to claim 1, wherein The softening point of the rosin-based resin as the component (A) is 80 to 180°C.

3. The water-dispersible composition for fiber processing according to claim 1, wherein The rosin-based resin as the component (A) is a rosin ester.

4. The water-dispersible composition for fiber processing according to claim 2, wherein The rosin-based resin as the component (A) is a rosin ester.

5. The water-dispersible composition for fiber processing according to any one of claims 1 to 4, wherein It is used for polyester fibers.

6. The water-dispersible composition for fiber processing according to any one of claims 1 to 4, wherein It is used for polyamide fibers.

7. The water-dispersible composition for fiber processing according to any one of claims 1 to 4, wherein It is used for cotton.

8. Use of a water-dispersible composition for fiber processing in processing fibers, wherein: A fiber processing water dispersion composition according to any one of claims 1 to 4 and a fiber processing agent are used in combination.

9. Use of the water-dispersible composition for fiber processing according to claim 8 in processing fibers, wherein: The fibers are polyester fibers.

10. Use of the water-dispersible composition for fiber processing according to claim 8 in processing fibers, wherein: The fibers are polyamide fibers.

11. Use of the water-dispersible composition for fiber processing according to claim 8 in processing fibers, wherein: The fiber is cotton.

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