Treatment agent for polyester synthetic fiber, composition containing treatment agent for polyester synthetic fiber, and polyester synthetic fiber

Abstract

The object of the present invention is to improve the antistatic property and softness imparted to fibers by a treating agent for synthetic fibers. The treating agent for polyester synthetic fibers contains silicone (A), silicone (B), an anionic component, and silicone (D), and optionally contains silicone (C). Silicone (A) is a modified silicone having an amino group in the molecule. Silicone (B) is a silane coupling agent having at least one functional group selected from methoxy, ethoxy, amino, and isocyanate groups in the molecule and not containing an epoxy group. Silicone (D) is a silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000. Silicone (C) is at least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone (wherein those conforming to silicone (A) or (D) are excluded). The content ratio of silicone (C) in the treating agent for polyester synthetic fibers is less than 10% by mass.

Description

Technical Field

[0001] The present invention relates to a treating agent for polyester synthetic fibers, a composition containing the treating agent for polyester synthetic fibers, and polyester synthetic fibers. Background Art

[0002] For example, in the spinning and stretching steps, post-treatment steps, etc. of synthetic fibers, from the viewpoints of reducing friction, antistatic properties, bundling properties, etc. of synthetic fibers, a treatment of attaching a treating agent for synthetic fibers to the surface of the fibers is sometimes performed.

[0003] Currently, treating agents for synthetic fibers disclosed in Patent Documents 1 to 4 are known. Patent Document 1 discloses a silicone emulsion composition containing silicone having a modified silicone having a functional group such as an amino group as an essential component, a surfactant having a polyalkylene oxide adduct as an essential component, and water. Patent Document 2 discloses a water-repellent composition containing an amino-modified silicone, a silicone resin, and an alkyl polysiloxane. Patent Document 3 discloses a silicone oil composition containing a predetermined silicone oil having a siloxane structure and a predetermined polyoxyalkylene alkyl or alkenyl ether. Patent Document 4 discloses a silicone emulsion composition containing dimethyl silicone and / or amino-modified silicone, a surfactant of a predetermined polyoxyalkylene alkyl ether, and water.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2013-177495

[0007] Patent Document 2: International Publication No. 2019 / 131456

[0008] Patent Document 3: Japanese Unexamined Patent Application Publication No. 2020-59799

[0009] Patent Document 4: Japanese Patent No. 4749677 Summary of the Invention

[0010] Problems to be Solved by the Invention

[0011] However, the antistatic properties and softness imparted to fibers by conventional treating agents for synthetic fibers still cannot sufficiently balance the improvement of each performance.

[0012] Means for Solving the Problems

[0013] The present inventors conducted research to solve the above problems and found that a composition containing a predetermined silicone and an anionic component in a treating agent for polyester synthetic fibers has particularly excellent effects.

[0014] In order to solve the above problems, the key point of the treating agent for polyester synthetic fibers according to one embodiment of the present invention is that it contains the following silicone (A), the following silicone (B), an anionic component, the following silicone (D), and optionally contains the following silicone (C), and the content ratio of the silicone (C) in the treating agent is less than 10% by mass.

[0015] Silicone (A): A modified silicone having an amino group in the molecule.

[0016] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0017] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, but excluding those conforming to the above silicone (A) and silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0018] Silicone (D): A silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0019] In order to solve the above problems, the key point of the treating agent for polyester synthetic fibers according to another embodiment of the present invention is that it contains the following silicone (A), the following silicone (B), an anionic component, the following nonionic surfactant, and optionally contains the following silicone (C), and the content ratio of the silicone (C) in the treating agent is less than 10% by mass.

[0020] Silicone (A): A modified silicone having an amino group in the molecule.

[0021] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0022] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, but excluding those conforming to the above silicone (A) and silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0023] Nonionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 1 to 4 carbon atoms and 2 to 18 carbon atoms, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0024] Regarding the above treating agent for polyester synthetic fibers, it can also be that when the content ratio of the above silicone (A) is set to 100 parts by mass, the content ratio of the above silicone (B) is 5 parts by mass or more and 200 parts by mass or less.

[0025] The treatment agent for polyester synthetic fibers described above may also be: the above-mentioned anionic component includes at least one selected from organic acids, alkyl sulfonic acids, alkyl phosphates, polyoxyalkylene alkyl phosphates, and metal salts thereof.

[0026] The treatment agent for polyester synthetic fibers described above may further contain the following nonionic surfactant.

[0027] Nonionic surfactant: at least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 or more and 18 or less carbon atoms and having one or more and four or less hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0028] In the treatment agent for polyester synthetic fibers described above, the content ratios of the respective components may be as follows: the above-mentioned silicone (A) is 5% by mass or more and 80% by mass or less, the above-mentioned silicone (B) is 1% by mass or more and 25% by mass or less, the above-mentioned silicone (C) is 0% by mass or more and less than 10% by mass, the above-mentioned silicone (D) is 5% by mass or more and 90% by mass or less, the above-mentioned nonionic surfactant is 1% by mass or more and 25% by mass or less, and the above-mentioned anionic component is 0.1% by mass or more and 25% by mass or less.

[0029] To solve the above problems, another aspect of the present invention provides a composition containing a treatment agent for polyester synthetic fibers, which is characterized in that it contains the above-mentioned treatment agent for polyester synthetic fibers and a solvent.

[0030] To solve the above problems, another aspect of the present invention provides a polyester synthetic fiber, which is characterized in that the above-mentioned treatment agent for polyester synthetic fibers is attached thereto.

[0031] The above-mentioned polyester synthetic fiber may also be suitable for filling cotton.

[0032] Advantages of the Invention

[0033] According to the present invention, it is possible to improve the antistatic property and softness imparted to fibers by the treatment agent for synthetic fibers. Detailed Embodiments

[0034] <First Embodiment>

[0035] Hereinafter, a first embodiment in which the treatment agent for polyester synthetic fibers of the present invention (hereinafter referred to as the treatment agent) is embodied will be described. The treatment agent of this embodiment contains the following silicone (A), silicone (B), and anionic component. It may further optionally contain the following silicone (C). It may further contain the following nonionic surfactant and / or silicone (D).

[0036] (Silicone (A))

[0037] The silicone (A) used in the treatment agent of this embodiment is a modified silicone having an amino group in the molecule. It can be a terminal-type amino-modified silicone formed by introducing an amino group into the terminal silicon atom of polydimethylsiloxane in the main chain, or a side-chain-type amino-modified silicone formed by introducing an amino group into a silicon atom other than the terminal of the main chain. In addition, commercially available products with defined viscosities and functional group equivalents can also be used for the silicone (A).

[0038] The viscosity of the silicone (A) at 25 °C is preferably 10 mPa·s or more and 30000 mPa·s or less, more preferably 25 mPa·s or more and 10000 mPa·s or less. It can also be in the range of any combination of the above upper and lower limits. By defining it within this range, the operability of the preparation can be improved, and thus the efficacy of the present invention can be more effectively exerted.

[0039] The functional group equivalent of the silicone (A) is preferably 100 g / mol or more and 20000 g / mol or less, more preferably 500 g / mol or more and 15000 g / mol or less. It can also be in the range of any combination of the above upper and lower limits. By defining it within this range, the affinity with polyester synthetic fibers can be improved, and thus the softness imparted to the fibers by the treatment agent can be more effectively exerted.

[0040] These silicones (A) can be used alone or in appropriate combination of two or more.

[0041] The lower limit of the content ratio of the silicone (A) in the treatment agent is preferably 3% by mass or more, more preferably 5% by mass or more. When the content ratio is 3% by mass or more, the softness imparted to the fibers by the treatment agent can be improved. The upper limit of the content ratio of the silicone (A) in the treatment agent is preferably 85% by mass or less, more preferably 80% by mass or less. When the content ratio is 85% by mass or less, the fluffiness imparted to the fibers by the treatment agent can be improved. It can also be in the range of any combination of the above upper and lower limits.

[0042] (Silicone (B))

[0043] The silicone (B) used in the treatment agent of this embodiment is a silane coupling agent having at least one functional group selected from methoxy, ethoxy, amino, and isocyanate groups in the molecule and not containing an epoxy group. The softness imparted to the fibers by the treatment agent can be particularly improved by the silicone (B). Specific examples of the silicone (B) can include, for example, N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane, 3-aminopropyltriethoxysilane, N-2-(aminoethyl)-3-aminopropyltrimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, 3-isocyanatopropyltriethoxysilane, etc.

[0044] These silicones (B) can be used alone or in combination of two or more as appropriate.

[0045] The lower limit of the content ratio of silicone (B) in the treatment agent is preferably 0.5% by mass or more, more preferably 1% by mass or more. When the content ratio is 0.5% by mass or more, the softness imparted to the fiber by the treatment agent can be improved. The upper limit of the content ratio of silicone (B) in the treatment agent is preferably 30% by mass or less, more preferably 25% by mass or less. When the content ratio is 30% by mass or less, the stability of the treatment agent during use can be improved, especially the emulsion stability when the treatment agent is in an emulsion state. It can also be in the range of any combination of the above upper and lower limits.

[0046] When the content ratio of silicone (A) in the treatment agent is set to 100 parts by mass, the lower limit of the content ratio of silicone (B) is preferably 5 parts by mass or more, more preferably 6 parts by mass or more. When the content ratio is 5 parts by mass or more, the softness imparted to the fiber by the treatment agent can be improved. When the content ratio of silicone (A) in the treatment agent is set to 100 parts by mass, the upper limit of the content ratio of silicone (B) is preferably 200 parts by mass or less, more preferably 150 parts by mass or less. When the content ratio is 200 parts by mass or less, the softness imparted to the fiber by the treatment agent can be improved.

[0047] (Silicone (C))

[0048] The silicone (C) used in the treatment agent of this embodiment is at least one selected from silicone resins, dimethylsilicones, and alkyl-modified silicones. Silicone (C) can also be optionally included in the treatment agent.

[0049] Examples of the above silicone resin include MQ silicone resin, MDQ silicone resin, T silicone resin, MTQ silicone resin, etc.

[0050] Here, M, D, T, and Q described regarding the silicone resin will be explained. The labeling method of the silicone resin using M, D, T, and Q is a commonly used labeling method for the components constituting the silicone resin. Among them, M is a monofunctional constituent unit R 1 R 2 R 3 SiO 1 / 2 , D is a difunctional constituent unit R 4 R 5 SiO 2 / 2 , T is a trifunctional constituent unit R 6 SiO 3 / 2 , Q is a tetrafunctional constituent unit SiO 4 / 2 . R 1 ~R 6 is a hydrocarbon group having 1 to 24 carbon atoms, -R a NHRb NH 2 (wherein, R a and R b is a hydrocarbon group having 2 or 3 carbon atoms) or -R c NH 2 (wherein, R c is a hydrocarbon group having 2 or 3 carbon atoms), etc., representing an organic amino group, vinyl group, or methanol group.

[0051] The above dimethyl silicone is not particularly limited, and preferably has a viscosity at 25°C of 5 mPa·s or more and 5000 mPa·s or less. Known dimethyl silicones with a defined viscosity can be appropriately used.

[0052] Examples of the above alkyl-modified silicone include those in which an organic group introduced by -C a H 2a+1 is introduced into the side chain of a silicone oil which is a linear polymer composed of siloxane bonds.

[0053] The above alkyl-modified silicone is not particularly limited, and preferably has a viscosity at 25°C of 5 mPa·s or more and 5000 mPa·s or less. Known alkyl-modified silicones with a defined viscosity can be appropriately used.

[0054] These silicones (C) can be used alone or in appropriate combination of two or more.

[0055] The content ratio of silicone (C) in the treatment agent is less than 10% by mass. When the content ratio of silicone (C) is less than 10% by mass, in particular, it does not interfere with the antistatic property imparted to the fiber by the treatment agent.

[0056] (Anionic component)

[0057] Examples of the anionic component used in the treatment agent of this embodiment include anionic compounds such as acids and their salts. The antistatic property imparted to the fiber by the treatment agent can be particularly improved by the anionic component.

[0058] Examples of the acid include inorganic acids, organic acids, fatty acids, alkyl sulfonic acids, alkyl sulfates, polyoxyalkylene alkyl sulfates, alkyl phosphates, polyoxyalkylene alkyl phosphates, sulfates of fatty acids, sulfates of oils and fats, and their salts.

[0059] Specific examples of the inorganic acid or its salt include hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, carbonic acid, sodium bisulfate, sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium bicarbonate, etc.

[0060] Specific examples of the organic acid include citric acid, tartaric acid, lactic acid, malic acid, succinic acid, fumaric acid, maleic acid, gluconic acid, glucuronic acid, benzoic acid, etc.

[0061] The fatty acids may be appropriately those well-known ones, which may be saturated fatty acids or unsaturated fatty acids. In addition, they may be linear or compounds having a branched structure. Further, they may be monobasic fatty acids or polycarboxylic acids (polyprotic acids).

[0062] Specific examples of saturated fatty acids include, for example, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid (caproic acid), caprylic acid (2-ethylhexanoic acid), caprylic acid (capric acid), pelargonic acid, capric acid (capric acid), dodecanoic acid (lauric acid), myristic acid (myristic acid), palmitic acid (palmitic acid), stearic acid (stearic acid), arachidic acid (arachidic acid), behenic acid (behenic acid), lignoceric acid, etc.

[0063] Specific examples of unsaturated fatty acids include, for example, crotonic acid, myristoleic acid, palmitoleic acid, oleic acid, elaidic acid, icosenoic acid, linoleic acid, α-linolenic acid, γ-linolenic acid, arachidonic acid, etc.

[0064] Specific examples of polycarboxylic acids (polyprotic acids) include, for example, (1) diprotic acids such as succinic acid, fumaric acid, maleic acid, adipic acid, sebacic acid; (2) triprotic acids such as aconitic acid; (3) aromatic dicarboxylic acids such as benzoic acid, terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid; (4) aromatic tricarboxylic acids such as trimellitic acid; (5) aromatic tetracarboxylic acids such as pyromellitic acid, etc.

[0065] From the viewpoint of excellent antistatic properties imparted to the fiber by the treatment agent, among these fatty acids, fatty acids having 8 or more and 18 or less carbon atoms are preferred.

[0066] Specific examples of alkylsulfonic acids include, for example, laurylsulfonic acid (dodecylsulfonic acid), myristylsulfonic acid, cetylsulfonic acid, oleylsulfonic acid, stearylsulfonic acid, tetradecylsulfonic acid, dodecylbenzenesulfonic acid, secondary alkylsulfonic acid (C13-15), etc.

[0067] Specific examples of alkyl sulfates include, for example, lauryl sulfate, oleyl sulfate, stearyl sulfate, etc.

[0068] Specific examples of polyoxyalkylene alkyl sulfates include, for example, polyoxyethylene lauryl ether sulfate, polyoxyalkylene (polyoxyethylene, polyoxypropylene) lauryl ether sulfate, polyoxyethylene dodecyl ether sulfate, polyoxyethylene oleyl ether sulfate, etc.

[0069] Specific examples of alkyl phosphates include, for example, lauryl phosphate, cetyl phosphate, octyl phosphate, oleyl phosphate, stearyl phosphate, etc.

[0070] Specific examples of polyoxyalkylene alkyl phosphates include, for example, polyoxyethylene lauryl ether phosphate, polyoxyethylene oleyl ether phosphate, polyoxyethylene stearyl ether phosphate, etc.

[0071] Specific examples of the sulfate esters of fatty acids include, for example, castor oil fatty acid sulfate ester, sesame oil fatty acid sulfate ester, rosin oil fatty acid sulfate ester, soybean oil fatty acid sulfate ester, rapeseed oil fatty acid sulfate ester, palm oil fatty acid sulfate ester, lard fatty acid sulfate ester, beef tallow fatty acid sulfate ester, whale oil fatty acid sulfate ester, etc.

[0072] Specific examples of the sulfate esters of oils and fats include, for example, castor oil sulfate ester, sesame oil sulfate ester, rosin oil sulfate ester, soybean oil sulfate ester, rapeseed oil sulfate ester, palm oil sulfate ester, lard sulfate ester, beef tallow sulfate ester, whale oil sulfate ester, etc.

[0073] Examples of the salts include ammonium salts, amine salts, metal salts, etc. Examples of the metal salts include alkali metal salts and alkaline earth metal salts. Specific examples of the alkali metals constituting the alkali metal salts include, for example, sodium, potassium, lithium, etc. The alkaline earth metals constituting the alkaline earth metal salts can be metals conforming to Group 2 elements, such as calcium, magnesium, beryllium, strontium, barium, etc.

[0074] The amine constituting the amine salt can be any one of primary amines, secondary amines, and tertiary amines. Specific examples of the amines constituting the amine salts include, for example, (1) aliphatic amines such as methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, N,N - diisopropylethylamine, butylamine, dibutylamine, 2 - methylbutylamine, tributylamine, octylamine, dimethyllaurylamine, etc.; (2) aromatic amines or heterocyclic amines such as aniline, N - methylbenzylamine, pyridine, morpholine, piperazine, and their derivatives; (3) alkanolamines such as monoethanolamine, N - methylethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, triisopropanolamine, dibutylethanolamine, butyldiethanolamine, octyldiethanolamine, lauryldiethanolamine, etc.; (4) arylamines such as N - methylbenzylamine; (5) polyoxyalkylene alkylamine ethers such as polyoxyethylene laurylamine ether, polyoxyethylene stearylamine ether; (6) ammonia, etc.

[0075] Among them, for example, metal salts of fatty acids and the like among the above - mentioned anionic components will form anionic surfactants. Therefore, anionic surfactants can also be applied to the anionic components.

[0076] These anionic components can be used alone or two or more of them can be used in appropriate combination.

[0077] Among them, organic acids, alkylsulfonic acids, alkyl phosphate esters, polyoxyalkylene alkyl phosphate esters, and their metal salts are preferably used. By using these compounds, the stability of the treatment agent can be improved, especially the emulsion stability when the treatment agent is in an emulsion state.

[0078] The lower limit of the content ratio of the anionic component in the treatment agent is preferably 0.1% by mass or more, more preferably 1% by mass or more. When the content ratio is 0.1% by mass or more, the antistatic property imparted to the fiber by the treatment agent can be particularly improved. The upper limit of the content ratio of the anionic component in the treatment agent is preferably 80% by mass or less, more preferably 30% by mass or less, and most preferably 25% by mass or less. When the content ratio is 80% by mass or less, the softness imparted to the fiber by the treatment agent can be improved. It may also be in the range of any combination of the above upper and lower limits.

[0079] (Silicone (D))

[0080] The treatment agent of the present embodiment may further contain silicone (D) as shown below. By containing silicone (D) in the treatment agent, the antistatic property imparted to the fiber by the treatment agent can be improved.

[0081] The silicone (D) used in the treatment agent of the present embodiment is a silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000. The silanol-modified silicone can be a dimethylsiloxane compound, and the terminal silicon atom of its main chain is directly bonded to a hydroxyl group represented in the form of a silanol group.

[0082] The lower limit of the number-average molecular weight of the silanol-modified silicone is 20,000 or more, preferably 100,000 or more. The upper limit of the number-average molecular weight of the silanol-modified silicone is less than 200,000, preferably 150,000 or less. By defining the number-average molecular weight of the silanol-modified silicone within this range, the effect of the present invention can be improved. It may also be in the range of any combination of the above upper and lower limits. Among them, the number-average molecular weight of the silanol-modified silicone can be measured using gel permeation chromatography (GPC). These silicones (D) can be used alone or in appropriate combination of two or more.

[0083] The lower limit of the content ratio of silicone (D) in the treatment agent is preferably 2% by mass or more, more preferably 5% by mass or more. When the content ratio is 2% by mass or more, the bulkiness imparted to the fiber by the treatment agent can be improved. The upper limit of the content ratio of silicone (D) in the treatment agent is preferably 92% by mass or less, more preferably 90% by mass or less. When the content ratio is 92% by mass or less, the stability of the treatment agent can be improved, especially the emulsification stability when the treatment agent is in an emulsion state. It may also be in the range of any combination of the above upper and lower limits.

[0084] (Nonionic surfactant)

[0085] The treatment agent of the present embodiment may further contain a nonionic surfactant as shown below. By containing a nonionic surfactant in the treatment agent, the stability of the treatment agent can be improved, especially the emulsification stability when the treatment agent is in an emulsion state.

[0086] Examples of the nonionic surfactant used in the treating agent of this embodiment include at least one selected from compounds obtained by adding 3 to 50 moles in total of alkylene oxides having 2 to 3 carbon atoms to 1 to 4 moles of monohydric to tetrahydric alcohols having 2 to 18 carbon atoms, and block copolymers formed from polyoxyethylene chains and polyoxypropylene chains.

[0087] Specific examples of the monohydric alcohols used as raw materials for the nonionic surfactant include, for example, (1) linear alkanols such as ethanol, propanol, butanol, pentanol, hexanol, octanol, nonanol, decanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, heptadecanol, and octadecanol; (2) branched alkanols such as isopropanol, isobutanol, isohexanol, 2-ethylhexanol, isononanol, isodecanol, isododecanol, isotridecanol, isotetradecanol, isotriacontanol, isohexadecanol, isheptadecanol, and isooctadecanol; (3) linear alkenols such as tetradecenol, hexadecenol, heptadecenol, and octadecenol; (4) branched alkenols such as isohexadecenol and isooctadecenol; (5) cyclic alkanols such as cyclopentanol and cyclohexanol; (6) aromatic alcohols such as phenol, nonylphenol, benzyl alcohol, monophenylated phenol, diphenylated phenol, and triphenylated phenol.

[0088] Specific examples of the polyhydric alcohols having 2 or more and 4 or less hydroxyl groups used as raw materials for the nonionic surfactant include, for example, ethylene glycol, propylene glycol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2-methyl-1,2-propanediol, 1,5-pentanediol, 1,6-hexanediol, 2,5-hexanediol, 2-methyl-2,4-pentanediol, 2,3-dimethyl-2,3-butanediol, glycerin, 2-methyl-2-hydroxymethyl-1,3-propanediol, trimethylolpropane, sorbitan, and pentaerythritol.

[0089] Examples of the alkylene oxide used as a raw material for forming the (poly)oxyalkylene structure in the nonionic surfactant include alkylene oxides having 2 to 3 carbon atoms. Specific examples of the alkylene oxide include ethylene oxide and propylene oxide. The number of moles of alkylene oxide added can be appropriately set, preferably 3 or more and 50 or less moles, more preferably 5 or more and 40 or less moles. It can also be in the range of any combination of the above upper and lower limits. Here, the number of moles of alkylene oxide added represents the number of moles of alkylene oxide relative to 1 mole of the alcohol in the charged raw materials. The alkylene oxide can be used alone or in combination of 2 types as appropriate. When 2 types of alkylene oxides are used, their addition methods can be any one of block addition, random addition, and a combination of block addition and random addition, and there is no particular limitation.

[0090] The block copolymer formed by polyoxyethylene chains and polyoxypropylene chains has polyoxypropylene chains with relatively low hydrophilicity and polyoxyethylene chains with relatively high hydrophilicity, and there is no particular limitation as long as it has surface activity. The number of polyoxyethylene chains and polyoxypropylene chains in the molecule is not particularly limited. For example, it can be a block copolymer composed of 1 polyoxypropylene chain and 1 polyoxyethylene chain, or it can be a Poloxamer series surfactant composed of a polyoxypropylene chain and 2 polyoxyethylene chains sandwiching it.

[0091] The addition molar number of ethylene oxide forming the polyoxyethylene chain is not particularly limited, and examples include 5 moles or more and 50 moles or less. The addition molar number of propylene oxide forming the polyoxypropylene chain is not particularly limited, and examples include 5 moles or more and 50 moles or less.

[0092] Specific examples of nonionic surfactants include, for example, polyoxyethylene (6 moles: indicating the addition molar number of alkylene oxide (the same hereinafter)) polyoxypropylene (2) dodecyl ether, polyoxyethylene (10) C12-13 branched alkyl ether, polyoxyethylene (25) polyoxypropylene (15) block ether, etc.

[0093] These nonionic surfactants can be used alone or in appropriate combination of two or more.

[0094] The lower limit of the content ratio of the nonionic surfactant in the treatment agent is preferably 1% by mass or more, more preferably 3% by mass or more. When the content ratio is 1% by mass or more, the stability of the treatment agent during use can be improved, especially the emulsification stability when the treatment agent is in an emulsion state. The upper limit of the content ratio of the nonionic surfactant in the treatment agent is preferably 30% by mass or less, more preferably 25% by mass or less. When the content ratio is 30% by mass or less, the softness imparted by the treatment agent to the fiber can be improved. It can also be in the range of any combination of the above upper and lower limits.

[0095] Preferably, the content ratios of the respective components in the treatment agent are as follows: silicone (A) 5% by mass or more and 80% by mass or less, silicone (B) 1% by mass or more and 25% by mass or less, silicone (C) 0% by mass or more and less than 10% by mass, silicone (D) 5% by mass or more and 90% by mass or less, nonionic surfactant 1% by mass or more and 25% by mass or less, and anionic component 0.1% by mass or more and 25% by mass or less. By defining within this range, the effects of the present invention can be improved.

[0096] (Storage method)

[0097] From the viewpoint of improving the stability of the preparation, the treatment agent can also be configured as a two-component treatment agent or a three-component treatment agent as shown below.

[0098] The two-component treating agent is composed of a combination including a two-component first treating agent for polyester synthetic fibers (hereinafter referred to as "two-component first treating agent") and a two-component second treating agent for polyester synthetic fibers (hereinafter referred to as "two-component second treating agent"). Among them, the two-component first treating agent contains silicone (A), an anionic component, and optionally contains silicone (C), and the two-component second treating agent contains silicone (B). The two-component first treating agent is contained in such a manner that the content ratio of silicone (C) in the mixture of the two-component first treating agent and the two-component second treating agent is less than 10% by mass. In addition, the two-component first treating agent may further contain silicone (D) and / or a non-ionic surfactant. Before use, for example, during storage or circulation, the two-component treating agent is composed of the two-component first treating agent and the two-component second treating agent, and among them, the two-component second treating agent is formed as an independent agent with the two-component first treating agent. The two-component treating agent is prepared into a mixture of the two-component first treating agent and the two-component second treating agent only when in use.

[0099] The three-component treating agent is composed of a combination including a three-component first treating agent for polyester synthetic fibers (hereinafter referred to as "three-component first treating agent"), a three-component second treating agent for polyester synthetic fibers (hereinafter referred to as "three-component second treating agent"), and a three-component third treating agent for polyester synthetic fibers (hereinafter referred to as "three-component third treating agent"). Among them, the three-component first treating agent contains silicone (A), an anionic component, and optionally contains silicone (C), the three-component second treating agent contains silicone (D), and the three-component third treating agent contains silicone (B).

[0100] The three-component first treating agent is contained in such a manner that the content ratio of silicone (C) in the mixture of the three-component first treating agent, the three-component second treating agent, and the three-component third treating agent is less than 10% by mass. Either or both of the three-component first treating agent and the three-component second treating agent may contain the above-mentioned non-ionic surfactant. In addition, the three-component second treating agent may also contain an anionic component.

[0101] Before use, for example, during storage or circulation, the three-component treating agent is composed of the three-component first treating agent, the three-component second treating agent, and the three-component third treating agent. Among them, the three-component second treating agent is formed as an independent agent with the three-component first treating agent, and the three-component third treating agent is formed as an independent agent with the three-component first treating agent and the three-component second treating agent. The three-component treating agent is prepared into a mixture of the three-component first treating agent, the three-component second treating agent, and the three-component third treating agent only when in use.

[0102] (Solvent)

[0103] The treatment agent of the present embodiment may also be mixed with a solvent as appropriate to prepare a composition containing a treatment agent for polyester synthetic fibers (hereinafter referred to as "composition containing a treatment agent"), and stored or circulated in the form of a composition containing a treatment agent.

[0104] The solvent is a solvent having a boiling point of 105 °C or lower at atmospheric pressure. Examples of the solvent include water and organic solvents. Specific examples of the organic solvent include lower alcohols such as ethanol and propanol, or low-polarity solvents such as hexane. These solvents may be used alone or in appropriate combination of two or more. Among them, from the viewpoint of excellent dispersibility or solubility of each component, polar solvents such as water and lower alcohols are preferred, and water is more preferred from the viewpoint of excellent operability.

[0105] When the total content ratio of the treatment agent and the solvent in the composition containing a treatment agent is set to 100 parts by mass, it is preferably 10 parts by mass or more and 80 parts by mass or less of the treatment agent.

[0106] The effects of the treatment agent of the first embodiment will be described.

[0107] (1-1) The treatment agent of the first embodiment contains the above-mentioned predetermined silicone and anionic component. Therefore, the antistatic property and softness imparted to the fiber by the treatment agent can be improved. In addition, the stability of the treatment agent, particularly the emulsion stability when the treatment agent is in an emulsion state, can be improved. In addition, the bulkiness imparted to the fiber by the treatment agent can be improved.

[0108] (1-2) The treatment agent of the first embodiment may also be composed of a combination of a two-component type first treatment agent and a two-component type second treatment agent, wherein the two-component type first treatment agent contains silicone (A), an anionic component, and optionally contains silicone (C), and the two-component type second treatment agent contains silicone (B). By this configuration, the formulation stability of the treatment agent, particularly the storage stability, can be improved.

[0109] (1-3) When the treatment agent of the first embodiment contains silicone (D) and the above-mentioned nonionic surfactant, it may also be composed of a combination of a three-component type first treatment agent, a three-component type second treatment agent, and a three-component type third treatment agent, wherein the three-component type first treatment agent contains silicone (A), an anionic component, and optionally contains silicone (C), the three-component type second treatment agent contains silicone (D), the three-component type third treatment agent contains silicone (B), and the above-mentioned nonionic surfactant may be contained in either or both of the three-component type first treatment agent and the three-component type second treatment agent. By this configuration, the formulation stability of the treatment agent, particularly the storage stability, can be improved.

[0110] <Second Embodiment>

[0111] Next, a second embodiment in which the two-component first treatment agent of the present invention is embodied will be described. The description will focus on the differences from the above-described embodiment.

[0112] The two-component first treatment agent of this embodiment contains silicone (A), an anionic component, and optionally contains silicone (C). The two-component first treatment agent is used in combination with a two-component second treatment agent containing silicone (B) during use. During use, the two-component first treatment agent is contained in the mixture, specifically, the two-component first treatment agent is contained in such a manner that the content ratio of silicone (C) in the mixture in which the two-component first treatment agent and the two-component second treatment agent are mixed is less than 10% by mass. In addition, when the treatment agent further contains silicone (D) and the above nonionic surfactant, the two-component first treatment agent may also contain silicone (D) and the nonionic surfactant.

[0113] Silicone (A), silicone (B), the anionic component, silicone (C), silicone (D), and the nonionic surfactant are the same as the respective components described in the first embodiment.

[0114] (Solvent)

[0115] The two-component first treatment agent of this embodiment may also be mixed with a solvent as appropriate to prepare a composition containing the two-component first treatment agent for polyester synthetic fibers (hereinafter referred to as "the composition containing the two-component first treatment agent"), and stored or distributed in the form of the composition containing the two-component first treatment agent.

[0116] The solvent can be the one exemplified in the first embodiment. When the total content ratio of the two-component first treatment agent and the solvent in the composition containing the two-component first treatment agent is set to 100 parts by mass, it is preferably 10 parts by mass or more and 80 parts by mass or less of the two-component first treatment agent.

[0117] The effects of the two-component first treatment agent of the second embodiment will be described. In the second embodiment, in addition to the effects of the above-described embodiment, it also has the following effects.

[0118] (2-1) The two-component first treatment agent of the second embodiment contains silicone (A), an anionic component, and optionally contains silicone (C), and is used in combination with a two-component second treatment agent containing silicone (B) during use. Therefore, the formulation stability, especially the storage stability, of the two-component first treatment agent can be improved. In addition, the composition of the obtained treatment agent can be adjusted by adjusting the mixing ratio with the two-component second treatment agent. In addition, the two-component first treatment agent and the two-component second treatment agent can be separately distributed.

[0119] <Third Embodiment>

[0120] Next, a third embodiment in which the second treatment agent of the two-component type of the present invention is embodied will be described. The description will focus on the differences from the above-described embodiments.

[0121] The second treatment agent of the two-component type in this embodiment contains silicone (B). The second treatment agent of the two-component type is used in combination with the first treatment agent of the two-component type containing silicone (A), an anionic component, and optionally containing silicone (C) when in use. When in use, the first treatment agent of the two-component type is contained in the mixture. Specifically, the first treatment agent of the two-component type is contained in such a manner that the content ratio of silicone (C) in the mixture of the first treatment agent of the two-component type and the second treatment agent of the two-component type is less than 10% by mass. In addition, when the treatment agent further contains silicone (D) and the above nonionic surfactant, the first treatment agent of the two-component type may also contain silicone (D) and the nonionic surfactant.

[0122] Silicone (A), silicone (B), the anionic component, silicone (C), silicone (D), and the nonionic surfactant are the same as the respective components described in the first embodiment.

[0123] The effects of the second treatment agent of the two-component type in the third embodiment will be described. In the third embodiment, in addition to the effects of the above-described embodiments, it also has the following effects.

[0124] (3-1) The second treatment agent of the two-component type in the third embodiment contains silicone (B). In addition, it is used in combination with the first treatment agent of the two-component type containing silicone (A), an anionic component, and optionally containing silicone (C) when in use. Therefore, the formulation stability of the second treatment agent of the two-component type, especially the storage stability, can be improved. In addition, by adjusting the mixing ratio with the first treatment agent of the two-component type, the composition of the obtained treatment agent can be adjusted. In addition, the second treatment agent of the two-component type and the first treatment agent of the two-component type can be circulated separately.

[0125] <Fourth Embodiment>

[0126] Next, a fourth embodiment in which the first treatment agent of the three-component type of the present invention is embodied will be described. The description will focus on the differences from the above-described embodiments.

[0127] The first treatment agent of the three-component type in this embodiment contains silicone (A), an anionic component, and optionally contains silicone (C). The first treatment agent of the three-component type is used in combination with the second treatment agent of the three-component type containing silicone (D) and the third treatment agent of the three-component type containing silicone (B) when in use. The above nonionic surfactant is contained in either or both of the first treatment agent of the three-component type and the second treatment agent of the three-component type.

[0128] In use, the first treating agent of the three-component type is contained in the mixture. Specifically, the first treating agent of the three-component type is contained in such a manner that the content ratio of silicone (C) in the mixture in which the first treating agent of the three-component type, the second treating agent of the three-component type, and the third treating agent of the three-component type are mixed is less than 10% by mass. Silicone (A), silicone (B), the anionic component, silicone (C), silicone (D), and the nonionic surfactant are the same as the respective components described in the first embodiment.

[0129] (Solvent)

[0130] The first treating agent of the three-component type of the present embodiment may also be mixed with a solvent as appropriate to prepare a composition containing the first treating agent of the three-component type for polyester synthetic fibers (hereinafter referred to as "the composition containing the first treating agent of the three-component type"), and stored or circulated in the form of the composition containing the first treating agent of the three-component type.

[0131] The solvent can be the one exemplified in the first embodiment. When the total content ratio of the first treating agent of the three-component type and the solvent in the composition containing the first treating agent of the three-component type is set to 100 parts by mass, it is preferably contained 10 parts by mass or more and 80 parts by mass or less of the first treating agent of the three-component type.

[0132] The effects of the first treating agent of the three-component type of the fourth embodiment will be described. In the fourth embodiment, in addition to the effects of the above-described embodiments, it also has the following effects.

[0133] (4-1) The first treating agent of the three-component type of the fourth embodiment contains silicone (A), the anionic component, and optionally contains silicone (C), and is used in combination with the second treating agent of the three-component type containing silicone (D) and the third treating agent of the three-component type containing silicone (B). In addition, the above nonionic surfactant is contained in either or both of the first treating agent of the three-component type and the second treating agent of the three-component type. Therefore, the formulation stability, particularly the storage stability, of the first treating agent of the three-component type can be improved. In addition, by adjusting the mixing ratio with the second and third treating agents of the three-component type, the components of the obtained treating agent can be adjusted. In addition, the first treating agent of the three-component type can be separately circulated from the second and third treating agents of the three-component type.

[0134] <Fifth Embodiment>

[0135] Next, the fifth embodiment in which the second treating agent of the three-component type of the present invention is embodied will be described. The description will focus on the differences from the above-described embodiments.

[0136] The second treating agent of the three - formulation type in this embodiment contains silicone (D). When in use, the second treating agent of the three - formulation type is used in combination with the first treating agent of the three - formulation type containing silicone (A), an anionic component, and optionally containing silicone (C), and the third treating agent of the three - formulation type containing silicone (B). The above non - ionic surfactant is contained in either or both of the first treating agent and the second treating agent of the three - formulation type. In addition, among the treating agents of the three - formulation type, the second treating agent of the three - formulation type may also contain an anionic component.

[0137] When in use, the first treating agent of the three - formulation type is contained in the mixture. Specifically, the first treating agent of the three - formulation type is contained in such a manner that the content ratio of silicone (C) in the mixture in which the first treating agent, the second treating agent, and the third treating agent of the three - formulation type are mixed is less than 10% by mass. Silicone (A), silicone (B), an anionic component, silicone (C), silicone (D), and the non - ionic surfactant are the same as the respective components described in the first embodiment.

[0138] (Solvent)

[0139] The second treating agent of the three - formulation type in this embodiment may also be mixed with a solvent as appropriate to prepare a composition containing the second treating agent of the three - formulation type for polyester synthetic fibers (hereinafter referred to as "the composition containing the second treating agent of the three - formulation type"), and stored or distributed in the form of the composition containing the second treating agent of the three - formulation type.

[0140] The solvent can be the one exemplified in the first embodiment. When the total content ratio of the second treating agent of the three - formulation type and the solvent in the composition containing the second treating agent of the three - formulation type is set to 100 parts by mass, it is preferably 10 parts by mass or more and 80 parts by mass or less of the second treating agent of the three - formulation type.

[0141] The effects of the second treating agent of the three - formulation type in the fifth embodiment will be described. In the fifth embodiment, in addition to the effects of the above - mentioned embodiments, it also has the following effects.

[0142] (5 - 1) The second treating agent of the three - formulation type in the fifth embodiment contains silicone (D) and is used in combination with the first treating agent of the three - formulation type containing silicone (A), an anionic component, and optionally containing silicone (C), and the third treating agent of the three - formulation type containing silicone (B) when in use. The above non - ionic surfactant is contained in either or both of the first treating agent and the second treating agent of the three - formulation type. Therefore, the formulation stability, especially the storage stability, of the second treating agent of the three - formulation type can be improved. In addition, by adjusting the mixing ratio with the first and third treating agents of the three - formulation type, the composition of the obtained treating agent can be adjusted. In addition, the second treating agent of the three - formulation type can be separately distributed from the first and third treating agents of the three - formulation type.

[0143] <Sixth Embodiment>

[0144] Next, a sixth embodiment in which the third treatment agent of the three-component type of the present invention is embodied will be described. The description will focus on the differences from the above-described embodiments.

[0145] The third treatment agent of the three-component type in this embodiment contains silicone (B). When in use, the third treatment agent of the three-component type is used in combination with the first treatment agent of the three-component type containing silicone (A), an anionic component, and optionally containing silicone (C), and the second treatment agent of the three-component type containing silicone (D). The above nonionic surfactant is contained in either or both of the first treatment agent and the second treatment agent of the three-component type.

[0146] When in use, the first treatment agent of the three-component type is contained in the mixture. Specifically, the first treatment agent of the three-component type is contained in such a manner that the content ratio of silicone (C) in the mixture in which the first treatment agent, the second treatment agent, and the third treatment agent of the three-component type are mixed is less than 10% by mass. Silicone (A), silicone (B), the anionic component, silicone (C), silicone (D), and the nonionic surfactant are the same as the respective components described in the first embodiment.

[0147] The effects of the third treatment agent of the three-component type in the sixth embodiment will be described. In the sixth embodiment, in addition to the effects of the above-described embodiments, the following effects are also exhibited.

[0148] (6-1) The third treatment agent of the three-component type in the sixth embodiment contains silicone (B) and is used in combination with the first treatment agent of the three-component type containing silicone (A), an anionic component, and optionally containing silicone (C), and the second treatment agent of the three-component type containing silicone (D) when in use. The above nonionic surfactant is contained in either or both of the first treatment agent and the second treatment agent of the three-component type. Therefore, the formulation stability, particularly the storage stability, of the third treatment agent of the three-component type can be improved. In addition, the composition of the obtained treatment agent can be adjusted by adjusting the mixing ratio with the first and second treatment agents of the three-component type. Furthermore, the third treatment agent of the three-component type can be circulated separately from the first and second treatment agents of the three-component type.

[0149] <Seventh Embodiment>

[0150] Next, a seventh embodiment in which the method for treating polyester synthetic fibers of the present invention (hereinafter referred to as "fiber treatment method") is embodied will be described.

[0151] When the treatment agent is a two-component type, the method for treating fibers according to the present embodiment is characterized in that a diluted solution of the treatment agent is applied to the polyester synthetic fiber, wherein the diluted solution of the treatment agent contains a solvent, the two-component type first treatment agent of the second embodiment, and the two-component type second treatment agent of the third embodiment. Examples of the method for preparing the diluted solution include, for example, a method of adding the two-component type first treatment agent or a composition containing the two-component type first treatment agent, and the two-component type second treatment agent to the solvent. Preferably, the diluted solution is prepared by adding the composition containing the two-component type first treatment agent of the second embodiment and the two-component type second treatment agent of the third embodiment to the solvent. The preferable comparison of the content ratio between the two-component type first treatment agent and the two-component type second treatment agent is that the mass ratio of the non-volatile components is two-component type first treatment agent / two-component type second treatment agent = 99.5 / 0.5 to 70 / 30. By defining it within this range, the operability can be improved. Herein, in this specification, the non-volatile component refers to the residue after the object is heat-treated at 105°C for 2 hours to sufficiently remove volatile substances, that is, the absolutely dry matter.

[0152] When the treatment agent is a three-component type, the method for treating fibers according to the present embodiment is characterized in that a diluted solution of the treatment agent is applied to the polyester synthetic fiber, wherein the diluted solution of the treatment agent contains a solvent, the three-component type first treatment agent of the fourth embodiment, the three-component type second treatment agent of the fifth embodiment, and the three-component type third treatment agent of the sixth embodiment. Examples of the method for preparing the diluted solution include, for example, a method of adding the three-component type first treatment agent or a composition containing the three-component type first treatment agent, the three-component type second treatment agent or a composition containing the three-component type second treatment agent, and the three-component type third treatment agent to the solvent. Preferably, the diluted solution is prepared by adding the composition containing the three-component type first treatment agent of the fourth embodiment, the composition containing the three-component type second treatment agent of the fifth embodiment, and the three-component type third treatment agent of the sixth embodiment to the solvent.

[0153] Examples of the solvent used for manufacturing the diluted solution include those exemplified in the first embodiment. From the viewpoints of operability and the like, preferably, the diluted solution has a non-volatile component concentration of 0.01% by mass or more and 10% by mass or less.

[0154] In the method of using the two-component type first treatment agent and the two-component type second treatment agent in combination, or in the method of using the three-component type first treatment agent, the three-component type second treatment agent, and the three-component type third treatment agent in combination, the mixing ratio of each agent can be arbitrarily changed. Therefore, even under conditions where there are differences in manufacturing conditions such as different manufacturing equipment or different climates such as temperature and humidity, by slightly adjusting the mixing ratio, it is easy to prepare a treatment agent or a diluted solution that always has the best properties for imparting fiber properties or fiber manufacturing properties at any time.

[0155] For the emulsifying treatment agent, each treatment agent or composition may also be mixed with a solvent, and stirred using a known stirrer, such as a homogenizer, a homogenizer, a colloid mill, a line mixer, etc.

[0156] The method for treating the fiber is a method of applying the dilution liquid obtained in the above-described manner to the fiber in a spinning manufacturing step, a post-treatment step, etc. composed of, for example, a spinning or stretching step.

[0157] Examples of the fiber to which the dilution liquid is applied include polyester synthetic fibers. Specific examples of the polyester synthetic fiber may include, for example, polyethylene terephthalate (PET), polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polylactic acid, and composite fibers formed from polyester-based resins containing them.

[0158] The use of the fiber is not particularly limited, and examples may include filling cotton, staple fibers, long fibers, spun yarns, non-woven fabrics, etc. Staple fibers generally refer to those called "staple" and do not include long fibers called "filament". In addition, the length of the staple fiber is not particularly limited as long as it conforms to the definition of the staple fiber in the present technical field, for example, 100 mm or less. Among them, the dilution liquid of the present invention is preferably applicable to polyester synthetic fibers for filling cotton. By applying it to polyester synthetic fibers for filling cotton, it is possible to impart smoothness and other textures to, for example, stuffed toys, quilts, and clothing.

[0159] The ratio of attaching the dilution liquid to the fiber is not particularly limited, and it is preferably such that the final solid content becomes 0.01% by mass or more and 10% by mass or less, more preferably 0.1% by mass or more and 3% by mass or less, based on the attachment of the dilution liquid to the fiber. According to this configuration, the effects of each component can be effectively exerted. In addition, the method of attaching the dilution liquid is not particularly limited, and a known method can be adopted according to the type, method, use, etc. of the fiber, such as a roller oiling method, a guiding oiling method using a metering pump, an immersion oiling method, a spray oiling method, etc. When using the immersion oiling method, the immersion time is preferably 1 minute or more and 5 minutes or less.

[0160] The fiber to which the dilution liquid is applied can also be dried or heat-treated using a known method. By drying or heat-treating to volatilize solvents such as water, fibers attached with the components contained in the first treatment agent, the second treatment agent, and the third treatment agent can be obtained.

[0161] Heat treatment is carried out to form a silicone coating film on the fiber surface. The heat treatment is preferably carried out under the conditions of 100 °C or higher and 200 °C or lower. The heating time is appropriately set according to the treatment temperature and the like, and is preferably 1 minute or more and 20 minutes or less, more preferably 1 minute or more and 15 minutes or less. By this heat treatment, the reaction between silicone (A) and silicone (B) can be promoted, and a silicone coating film composed of a cross-linked polymer compound is formed on the fiber.

[0162] The effects of the treatment method of the fiber of the 7th embodiment will be described. In the 7th embodiment, in addition to the effects of the above embodiments, the following effects are also provided.

[0163] (7-1) The treatment method of the fiber of the 7th embodiment is, for example, a method of imparting a diluent to the fiber in a spinning manufacturing step such as a spinning or stretching step, a post-treatment step, etc. In particular, the diluent prepared by adding the two-component first treatment agent of the 2nd embodiment or the composition containing the two-component first treatment agent, and the two-component second treatment agent of the 3rd embodiment to a solvent has excellent emulsion stability. Alternatively, the diluent prepared by adding the three-component first treatment agent of the 4th embodiment or the composition containing the three-component first treatment agent, the three-component second treatment agent of the 5th embodiment or the composition containing the three-component second treatment agent, and the three-component third treatment agent of the 6th embodiment to a solvent has excellent emulsion stability. Therefore, the effects of each component on filling cotton, short fibers, long fibers, spun yarns, non-woven fabrics, etc. can be effectively exerted.

[0164] (7-2) The treatment method of the fiber of the 7th embodiment can further perform a heat treatment at 100 °C or higher and 200 °C or lower on the fiber to which the diluent of the treatment agent has been imparted. By this heat treatment, the reaction between silicone (A) and silicone (B) can be promoted, and a silicone coating film composed of a cross-linked polymer compound is formed on the fiber. In this way, a more durable coating film can be formed, thereby improving the softness of the fiber.

[0165] Among them, the above embodiments can be changed as follows. The above embodiments and the following modification examples can be implemented in combination with each other within a technically non-contradictory range.

[0166] · The method for preparing the diluent of the treatment agent in the above embodiments is not particularly limited, and a method other than the preparation method described in the treatment method column of the fiber of the 7th embodiment can also be used. For example, after mixing the above-mentioned various silicones, nonionic surfactants, and anionic components, they can be further mixed with a solvent.

[0167] · Within the scope not detrimental to the effects of the present invention, each treatment agent, each composition, or diluent of the above-described embodiments can also be further admixed with other solvents, stabilizers, antistatic agents, binders, antioxidants, ultraviolet absorbers, organic acids, surfactants other than those described above, and other components that are commonly used in treatment agents, etc., for maintaining the quality of each treatment agent, each composition, or diluent. Among them, from the viewpoint of effectively exerting the efficacy of the present invention, other components other than solvents that are commonly used in treatment agents are preferably 10% by mass or less in each treatment agent.

[0168] Examples

[0169] Hereinafter, examples, etc. are given to more specifically illustrate the constitution and effects of the present invention, but the present invention is not limited to these examples. Among them, in the following examples and comparative examples, unless otherwise specified, "parts" means parts by mass and "%" means mass %.

[0170] Test Category 1 (Preparation of Treatment Agent)

[0171] (Example 1)

[0172] As shown in Table 1, the treatment agent of Example 1 was prepared, which contained 6 parts (%) of a modified silicone (side chain type, viscosity: 6000 mPa·s, functional group equivalent: 11000 g / mol) (A-1) having an amino group of silicone (A), 5 parts (%) of N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane (functional groups: amino group, methoxy group) (B-1) of silicone (B), 80 parts (%) of a silicone diol-modified silicone (number average molecular weight: 100000) (D-1) of silicone (D), 4 parts (%) of sodium dodecylsulfonate (E-1) as an anionic component, and 5 parts (%) of polyoxyethylene(6) polyoxypropylene(2) dodecyl ether (F-1) as a nonionic surfactant.

[0173] (Examples 2 to 31, Comparative Examples 1 to 10)

[0174] The treatment agents of Examples 2 to 31 and Comparative Examples 1 to 10 were prepared in the same manner as the treatment agent of Example 1, which contained silicone (A) to silicone (D), an anionic component, and a nonionic surfactant in the proportions shown in Table 1.

[0175] The types and contents of silicone (A), silicone (B), silicone (C), silicone (D), the types and contents of anionic components, and the types and contents of nonionic surfactants are shown in the "Silicone (A)", "Silicone (B)", "Silicone (C)", "Silicone (D)", "Anionic Component", and "Nonionic Surfactant" columns of Table 1, respectively. In addition, the content of silicone (B) when the content of silicone (A) in the treatment agent is set to 100 parts by mass is shown in the column of "Parts by Mass of Silicone (B) Relative to 100 Parts by Mass of Silicone (A)" in Table 1.

[0176] [Table 1]

[0177]

[0178] Details of silicone (A), silicone (B), silicone (C), silicone (D), anionic components, and nonionic surfactants recorded in Table 1 are as follows.

[0179] (Silicone (A))

[0180] A-1: Modified silicone with an amino group (side chain type, viscosity: 6000 mPa·s, functional group equivalent: 11000 g / mol)

[0181] A-2: Modified silicone with an amino group (both ends type, viscosity: 25 mPa·s, functional group equivalent: 800 g / mol)

[0182] A-3: Modified silicone with an amino group (side chain type, viscosity: 600 mPa·s, functional group equivalent: 3700 g / mol)

[0183] A-4: Modified silicone with an amino group (side chain type, viscosity: 5000 mPa·s, functional group equivalent: 7000 g / mol)

[0184] A-5: Modified silicone with an amino group (side chain type, viscosity: 3500 mPa·s, functional group equivalent: 1700 g / mol)

[0185] A-6: Modified silicone with an amino group (both ends type, viscosity: 520 mPa·s, functional group equivalent: 7000 g / mol)

[0186] (Silicone (B))

[0187] B-1: N-2-(Aminoethyl)-3-aminopropylmethyldimethoxysilane (functional groups: amino group, methoxy group)

[0188] B-2: 3-Aminopropyltriethoxysilane (functional groups: amino group, methoxy group)

[0189] B-3: N-2-(Aminoethyl)-3-aminopropyltrimethoxysilane (Functional groups: Amino group, Methoxy group)

[0190] B-4: Methyltrimethoxysilane (Functional groups: Methoxy group)

[0191] B-5: Methyltriethoxysilane (Functional groups: Ethoxy group)

[0192] B-6: 3-Isocyanatopropyltriethoxysilane (Functional groups: Isocyanate group, Ethoxy group)

[0193] b-1: 3-Glycidoxypropylmethyldimethoxysilane (Functional groups: Epoxy group, Methoxy group)

[0194] (Silicone (C))

[0195] C-1: Polydimethylsiloxane (Viscosity: 1000 mPa·s)

[0196] C-2: Alkyl-modified silicone (Viscosity: 500 mPa·s)

[0197] C-3: Silicone resin (MQ type) (Solid at room temperature)

[0198] (Silicone (D))

[0199] D-1: Silanol-terminated silicone (Number average molecular weight: 100000)

[0200] D-2: Silanol-terminated silicone (Number average molecular weight: 150000)

[0201] D-3: Silanol-terminated silicone (Number average molecular weight: 20000)

[0202] D-4: Silanol-terminated silicone (Number average molecular weight: 50000)

[0203] D-5: Silanol-terminated silicone (Number average molecular weight: 200000)

[0204] (Anionic component)

[0205] E-1: Sodium dodecylsulfonate

[0206] E-2: Potassium octyl phosphate

[0207] E-3: Oleic acid

[0208] E-4: Acetic acid

[0209] E-5: Sodium polyoxyethylene(3) dodecyl sulfate

[0210] (Nonionic surfactant)

[0211] F-1: Polyoxyethylene(6) polyoxypropylene(2) dodecyl ether

[0212] F-2: Polyoxyethylene(10) C12-13 branched alkyl ether

[0213] F-3: Polyoxyethylene(25) polyoxypropylene(15) block ether

[0214] f-4: Polyoxyethylene(40) hydrogenated castor oil

[0215] Test category 2 (emulsifying property)

[0216] Each treatment agent prepared in Test category 1 was diluted with ion-exchanged water to prepare a dilution (emulsion) with a non-volatile component concentration of 1.0%. This dilution was used to evaluate the emulsifying property as stability.

[0217] The light transmittance (%) at a wavelength of 750 nm of the dilution of each treatment agent was measured under the conditions of 20°C and 60% RH. The measuring device used was a spectrophotometer UV-1800 SPECTROPHOTOMETER manufactured by Shimadzu Corporation. The emulsifying property of the dilution was evaluated according to the following criteria. The results are shown in the "Emulsifying property" column of Table 1.

[0218] · Evaluation criteria for emulsifying property

[0219] ◎ (Good): No separation, light transmittance 50% or more

[0220] 〇 (Fair): No separation, light transmittance 30% or more and less than 50%

[0221] × (Poor): Separation occurred

[0222] Test category 3 (softness)

[0223] Evaluation was carried out using polyester synthetic fiber cotton with a denier of 7 and a cut length of 32 mm used in general upholstery filling cotton, quilts, etc. To avoid the influence of lubricants, etc. used in the manufacture of polyester synthetic fiber, it was first washed with warm water at 40°C and then dried at 80°C for 2 hours before evaluation.

[0224] Each treatment agent prepared in Test category 1 was diluted to prepare a dilution in the form of an emulsion with an active ingredient concentration of 12.5%. 2.4 g of the emulsion was evenly sprayed on 100 g of polyester synthetic fiber cotton. Then, heat treatment (drying treatment) was carried out at 180°C for 10 minutes to obtain a test sample cotton for evaluation. That is, 0.3 g of the treatment agent was attached to 100 g of cotton.

[0225] · Evaluation of softness

[0226] Five reviewers familiar with the texture evaluation of fibers scored the softness of the dried sample cotton using the following criteria, and then rounded the average score of the five people to calculate two significant figures. The softness was evaluated based on the calculated average score. The results are shown in the "Softness" column of Table 1.

[0227] 1 point: The softness is approximately the same as that of cotton made of polyester synthetic fiber without the attached treatment agent.

[0228] 2 points: The felt softness is greater than that of cotton made of polyester synthetic fiber without the attached treatment agent.

[0229] 3 points: The felt softness is much greater than that of cotton made of polyester synthetic fiber without the attached treatment agent.

[0230] ◎ (Good): The average score of the five people is 2.5 points or more.

[0231] 〇 (Fair): The average score of the five people is 2.0 points or more and less than 2.5 points.

[0232] × (Poor): The average score of the five people is less than 2.0 points.

[0233] Test category 4 (Antistatic property)

[0234] 5 g of the sample cotton with each treatment agent prepared in Test category 3 was subjected to humidity adjustment for 24 hours in a constant temperature chamber at 20 °C and a relative humidity of 45%. Then, the resistance of the polyester synthetic fiber was measured using a well-known resistance measuring device and evaluated using the following evaluation criteria. The results are shown in the "Antistatic property" column of Table 1.

[0235] · Evaluation criteria for antistatic property

[0236] ◎ (Good): The surface resistance is less than 1.0×10 11 Ω

[0237] 〇 (Fair): The surface resistance is 1.0×10 11 Ω or more and less than 1.0×10 12 Ω

[0238] × (Poor): The surface resistance is 1.0×10 12 Ω or more

[0239] Test category 5 (Fluffiness)

[0240] The fluffiness was evaluated by measuring the compression elastic recovery rate. The compression elastic recovery rate was measured by a test method similar to JIS L 2001.

[0241] 40 g of the sample cotton with each treatment agent prepared in Test Category 3 was made into a carded web with a treatment agent of 30 cm × 100 cm by a roller carding machine. The carded web was cut into fabrics of 15 cm × 15 cm, and 4 pieces were made. The 4 pieces of fabric were overlapped to form a rectangular parallelepiped, in which the fiber directions were perpendicular to each other.

[0242] After standing at 20 °C and 40% RH for 30 minutes, a metal plate (135 g) of 15 cm × 15 cm was placed on the rectangular parallelepiped, and the height (h1) of the rectangular parallelepiped after 1 minute was recorded in 0.1 cm units. Further, a weight of 1125 g was placed on the metal plate, the height (h2) after standing for 24 hours was recorded, and then the weight was removed. The height (h3) of the rectangular parallelepiped 1 minute after removing the weight was recorded.

[0243] The recovery rate was calculated by the following formula.

[0244] Recovery rate (%) = 100 × (h3 - h2) / (h1 - h2)

[0245] The higher the recovery rate, the better the fluffiness of the sample cotton can be judged.

[0246] ◎ (Good): Recovery rate (%) 80% or more

[0247] 〇 (Fair): Recovery rate (%) 50% or more and less than 80%

[0248] × (Poor): Recovery rate (%) less than 50%

[0249] Test Category 6 (Preparation of the First Treatment Agent of the Two-Component Type)

[0250] (The First Treatment Agent (P-1) of the Two-Component Type)

[0251] The first treatment agent (P-1) of the two-component type was prepared, which contained 6.3 parts (%) of a modified silicone (side chain type, viscosity: 6000 mPa·s, functional group equivalent: 11000 g / mol) (A-1) having an amino group of silicone (A), 84.2 parts (%) of a silicone (D) with both ends silanol-modified silicone (number average molecular weight: 100000), 4.2 parts (%) of sodium dodecylsulfonate (E-1) as an anionic component, and 5.3 parts (%) of polyoxyethylene (6) polyoxypropylene (2) dodecyl ether (F-1) as a nonionic surfactant.

[0252] (The First Treatment Agents P-2 to P-31 of the Two-Component Type)

[0253] The first treatment agents P-2 to P-31 of the two-component type were prepared in the same manner as the first treatment agent (P-1) of the two-component type, which contained silicone (A), silicone (C), silicone (D), an anionic component, and a nonionic surfactant in the proportions shown in Table 2.

[0254] The types and contents of silicone (A), silicone (C), silicone (D), the types and contents of anionic components, and the types and contents of nonionic surfactants are shown in the columns of "Silicone (A)", "Silicone (C)", "Silicone (D)", "Anionic Components", and "Nonionic Surfactants" in Table 2, respectively.

[0255] [Table 2]

[0256]

[0257] Test Category 7 (Preparation of the Second Agent of the Two-Component Formulation)

[0258] (Second Agent of the Two-Component Formulation (S-1))

[0259] The second agent of the two-component formulation (S-1) contains 100 parts (%) of N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane (functional groups: amino, methoxy) (B-1) as silicone (B).

[0260] (Second Agents of the Two-Component Formulation S-2 to S-6)

[0261] The second agents of the two-component formulation S-2 to S-6 were prepared, which contain silicone (B) in the proportions shown in Table 3. The types and contents of silicone (B) are shown in the column of "Silicone (B)" in Table 3.

[0262] [Table 3]

[0263]

[0264] Test Category 8 (Evaluation of Formulation Stability)

[0265] · Evaluation of the formulation stability of the first agent of the two-component formulation

[0266] Ion-exchanged water was added to each first agent of the two-component formulation to adjust the concentration to 40%, and the mixture was emulsified by a homogenizer to prepare an emulsion (a composition containing the first agent of the two-component formulation). The obtained emulsion was temperature-adjusted in a constant-temperature chamber at 20°C and 60% RH for 24 hours. The appearance was visually judged and evaluated using the following criteria. The results are shown in the column of "Formulation Stability" in Table 2.

[0267] · Evaluation of the formulation stability of the second agent of the two-component formulation

[0268] Each second agent of the two-component formulation was temperature-adjusted in a constant-temperature chamber at 20°C and 60% RH for 24 hours. The appearance was visually judged and evaluated using the following criteria. The results are shown in the column of "Formulation Stability" in Table 3.

[0269] ·Evaluation Criteria for Preparation Stability (Two-Formulation First Treatment Agent and Two-Formulation Second Treatment Agent)

[0270] ◎ (Good): No separation

[0271] × (Not acceptable): Separation occurred

[0272] Test Category 9 (Preparation of Treatment Agent Composed of Two-Formulation First Treatment Agent and Two-Formulation Second Treatment Agent)

[0273] (Example 32)

[0274] Mix 95% (parts) of the two-formulation first treatment agent (P-1) shown in Table 4 and 5% (parts) of the two-formulation second treatment agent (S-1) to prepare the treatment agent of Example 32.

[0275] (Examples 33 - 62)

[0276] In the same manner as in Example 32, mix the two-formulation first treatment agent and the two-formulation second treatment agent shown in Table 4 to prepare the treatment agents for each example. The types and mass ratios of the two-formulation first treatment agent and the types and mass ratios of the two-formulation second treatment agent are shown in the "Two-Formulation First Treatment Agent" column and the "Two-Formulation Second Treatment Agent" column of Table 4, respectively.

[0277] Using the treatment agents obtained for each example, evaluate the emulsifying property, antistatic property, softness, and fluffiness in the same method as in Example 1. The results are shown in the "Emulsifying Property" column, "Antistatic Property" column, "Softness" column, and "Fluffiness" column of Table 4, respectively.

[0278] [Table 4]

[0279]

[0280] Test Category 10 (Preparation of Three-Formulation First Treatment Agent)

[0281] (Three-Formulation First Treatment Agent (TP-1))

[0282] Prepare a three-formulation first treatment agent (TP-1) containing 90.5 parts (%) of a modified silicone with an amino group (side chain type, viscosity: 6000 mPa·s, functional group equivalent: 11000 g / mol) (A-1) of silicone (A), 4.2 parts (%) of sodium dodecylsulfonate (E-1) as an anionic component, and 5.3 parts (%) of polyoxyethylene (6) polyoxypropylene (2) dodecyl ether (F-1) as a nonionic surfactant.

[0283] (Three-Formulation First Treatment Agents TP-2 - TP-26)

[0284] The 3 - dosage - form first treatment agents TP - 2 to TP - 26 were prepared in the same manner as the 3 - dosage - form first treatment agent (TP - 1), and they contain silicone (A), silicone (C), anionic components, and non - ionic surfactants in the proportions shown in Table 5.

[0285] The type and content of silicone (A), the type and content of silicone (C), the type and content of anionic components, and the type and content of non - ionic surfactants are shown in the columns of "Silicone (A)", "Silicone (C)", "Anionic Components", and "Non - ionic Surfactants" in Table 5, respectively.

[0286] [Table 5]

[0287]

[0288] Test Category 11 (Preparation of 3 - dosage - form second treatment agent)

[0289] (3 - dosage - form second treatment agent (TS - 1))

[0290] The 3 - dosage - form second treatment agent (TS - 1) was prepared, which contains 90.5 parts (%) of the two - terminal silanol - modified silicone (number - average molecular weight: 100000) (D - 1) of silicone (D), 4.2 parts (%) of sodium dodecyl sulfonate (E - 1) as an anionic component, and 5.3 parts (%) of polyoxyethylene (6) polyoxypropylene (2) dodecyl ether (F - 1) as a non - ionic surfactant.

[0291] (3 - dosage - form second treatment agents TS - 2 to TS - 26)

[0292] The 3 - dosage - form second treatment agents TS - 2 to TS - 26 were prepared in the same manner as the 3 - dosage - form second treatment agent (TS - 1), and they contain silicone (D), anionic components, and non - ionic surfactants in the proportions shown in Table 6.

[0293] The type and content of silicone (D), the type and content of anionic components, and the type and content of non - ionic surfactants are shown in the columns of "Silicone (D)", "Anionic Components", and "Non - ionic Surfactants" in Table 6, respectively.

[0294] [Table 6]

[0295]

[0296] Test Category 12 (Preparation of 3 - dosage - form third treatment agent)

[0297] (3 - dosage - form third treatment agent (TT - 1))

[0298] The 3 - dosage - form third treatment agent (TT - 1) contains 100 parts (%) of N - 2-(aminoethyl)-3 - aminopropylmethyldimethoxysilane (functional groups: amino group, methoxy group) (B - 1) and silicone (B).

[0299] (3 - dosage - form third treatment agents TT - 2 to TT - 6)

[0300] Prepare 3 - dosage - form third treatment agents TT - 2 to TT - 6, which contain silicone (B) in the proportions shown in Table 7. The types and contents of silicone (B) are shown in the "Silicone (B)" column of Table 7.

[0301] [Table 7]

[0302]

[0303] Test category 13 (Evaluation of formulation stability)

[0304] · Evaluation of the formulation stability of the 3 - dosage - form first treatment agent

[0305] Add ion - exchanged water to each 3 - dosage - form first treatment agent to adjust the concentration to 40%, and emulsify it with a homogenizer to prepare an emulsion (a composition containing the 3 - dosage - form first treatment agent). Adjust the temperature of the obtained emulsion in a constant - temperature chamber at 20°C and 60% RH for 24 hours. Judge the appearance visually and evaluate it using the following criteria. The results are shown in the "Formulation stability" column of Table 5.

[0306] · Evaluation of the formulation stability of the 3 - dosage - form second treatment agent

[0307] Add ion - exchanged water to each 3 - dosage - form second treatment agent to adjust the concentration to 40%, and emulsify it with a homogenizer to prepare an emulsion (a composition containing the 3 - dosage - form second treatment agent). Adjust the temperature of the obtained emulsion in a constant - temperature chamber at 20°C and 60% RH for 24 hours. Judge the appearance visually and evaluate it using the following criteria. The results are shown in the "Formulation stability" column of Table 6.

[0308] · Evaluation of the formulation stability of the 3 - dosage - form third treatment agent

[0309] Adjust the temperature of each 3 - dosage - form third treatment agent in a constant - temperature chamber at 20°C and 60% RH for 24 hours. Judge the appearance visually and evaluate it using the following criteria. The results are shown in the "Formulation stability" column of Table 7.

[0310] · Evaluation criteria for formulation stability (3 - dosage - form first treatment agent, 3 - dosage - form second treatment agent, and 3 - dosage - form third treatment agent)

[0311] ◎ (Good): No separation

[0312] × (Not acceptable): Separation occurred

[0313] Test category 14 (preparation of treatment agents composed of the 1st treatment agent of 3 dosage forms, the 2nd treatment agent of 3 dosage forms, and the 3rd treatment agent of 3 dosage forms)

[0314] (Example 63)

[0315] Mix 6.6% (parts) of the 1st treatment agent of 3 dosage forms (TP-1), 88.4% (parts) of the 2nd treatment agent of 3 dosage forms (TS-1), and 5% (parts) of the 3rd treatment agent of 3 dosage forms (TT-1) shown in Table 8 to prepare the treatment agent of Example 63.

[0316] (Examples 64 - 88)

[0317] In the same manner as in Example 63, mix the 1st treatment agent of 3 dosage forms, the 2nd treatment agent of 3 dosage forms, and the 3rd treatment agent of 3 dosage forms shown in Table 8 to prepare the treatment agents of each example. The types and mass ratios of the 1st treatment agent of 3 dosage forms, the types and mass ratios of the 2nd treatment agent of 3 dosage forms, and the types and mass ratios of the 3rd treatment agent of 3 dosage forms are shown in the columns of "1st treatment agent of 3 dosage forms", "2nd treatment agent of 3 dosage forms", and "3rd treatment agent of 3 dosage forms" in Table 8 respectively.

[0318] Using the obtained treatment agents of each example, evaluate the emulsifying property, antistatic property, softness, and fluffiness in the same method as in Example 1. The results are shown in the columns of "Emulsifying property", "Antistatic property", "Softness", and "Fluffiness" in Table 8 respectively.

[0319] [Table 8]

[0320]

[0321] From the evaluation results of each example in each table relative to the comparative example, it can be clearly known that the treatment agent of the present invention can improve the emulsifying property. In addition, it can improve the antistatic property, softness, and fluffiness imparted to the fiber by the treatment agent. In addition, each of the 1st treatment agent, the 2nd treatment agent, and the 3rd treatment agent of the present invention can improve the preparation stability.

[0322] The present disclosure also includes the following modes.

[0323] (Appendix A1)

[0324] A treatment agent for polyester synthetic fibers, characterized in that

[0325] it contains the following silicone (A), the following silicone (B), an anionic component, and optionally contains the following silicone (C), and the content ratio of the silicone (C) in the treatment agent is less than 10% by mass.

[0326] Silicone (A): A modified silicone having an amino group in the molecule.

[0327] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy, ethoxy, amino, and isocyanate groups in the molecule and not containing an epoxy group.

[0328] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone.

[0329] (Appendix A2)

[0330] The treatment agent for polyester synthetic fiber as described in Appendix A1, wherein

[0331] When the content ratio of the above silicone (A) is set to 100 parts by mass, the content ratio of the above silicone (B) is 5 parts by mass or more and 200 parts by mass or less.

[0332] (Appendix A3)

[0333] The treatment agent for polyester synthetic fiber as described in Appendix A1 or A2, wherein

[0334] The above anionic component contains at least one selected from organic acids, alkyl sulfonic acids, alkyl phosphates, polyoxyalkylene alkyl phosphates, and metal salts thereof.

[0335] (Appendix A4)

[0336] The treatment agent for polyester synthetic fiber as described in any one of Appendix A1 to A3, wherein

[0337] Furthermore, it contains the following silicone (D).

[0338] Silicone (D): A silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0339] (Appendix A5)

[0340] The treatment agent for polyester synthetic fiber as described in any one of Appendix A1 to A4, wherein

[0341] Furthermore, it contains the following nonionic surfactant.

[0342] Nonionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 or more and 18 or less carbon atoms and having 1 or more and 4 or less hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0343] (Appendix A6)

[0344] The treatment agent for polyester synthetic fiber as described in any one of Appendix A1 to A3, wherein

[0345] Furthermore, it contains the following silicone (D) and the following nonionic surfactant.

[0346] The content ratios of the respective components in the treatment agent for polyester synthetic fibers are as follows: the above silicone (A) is 5% by mass or more and 80% by mass or less, the above silicone (B) is 1% by mass or more and 25% by mass or less, the above silicone (C) is 0% by mass or more and less than 10% by mass, the above silicone (D) is 5% by mass or more and 90% by mass or less, the above nonionic surfactant is 1% by mass or more and 25% by mass or less, and the above anionic component is 0.1% by mass or more and 25% by mass or less.

[0347] Silicone (D): a silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0348] Nonionic surfactant: at least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 to 18 carbon atoms and having 1 to 4 hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0349] (Appendix A7)

[0350] The treatment agent for polyester synthetic fibers as described in any one of Appendices A1 to A3 is a combination comprising a first treatment agent for polyester synthetic fibers in two-component form and a second treatment agent for polyester synthetic fibers in two-component form.

[0351] The first treatment agent for polyester synthetic fibers in two-component form contains the above silicone (A) and the above anionic component, and optionally contains the above silicone (C). The second treatment agent for polyester synthetic fibers in two-component form contains the above silicone (B).

[0352] (Appendix A8)

[0353] For the treatment agent for polyester synthetic fibers as described in Appendix A7,

[0354] The first treatment agent for polyester synthetic fibers in two-component form further contains the following silicone (D) and the following nonionic surfactant.

[0355] Silicone (D): a silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0356] Nonionic surfactant: at least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 to 18 carbon atoms and having 1 to 4 hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0357] (Appendix A9)

[0358] A treating agent for polyester synthetic fibers as described in any one of Appendices A1 to A3, which is a combination comprising a first treating agent for polyester synthetic fibers of three - component type, a second treating agent for polyester synthetic fibers of three - component type, and a third treating agent for polyester synthetic fibers of three - component type,

[0359] further containing the following silicone (D) and the following non - ionic surfactant,

[0360] The first treating agent for polyester synthetic fibers of three - component type contains the above - mentioned silicone (A) and the above - mentioned anionic component, and optionally contains the above - mentioned silicone (C),

[0361] The second treating agent for polyester synthetic fibers of three - component type contains the above - mentioned silicone (D),

[0362] The third treating agent for polyester synthetic fibers of three - component type contains the above - mentioned silicone (B),

[0363] Either or both of the first treating agent for polyester synthetic fibers of three - component type and the second treating agent for polyester synthetic fibers of three - component type contain the above - mentioned non - ionic surfactant.

[0364] Silicone (D): A silanol - modified silicone having a number - average molecular weight of 20,000 or more and less than 200,000.

[0365] Non - ionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 or more and 18 or less carbon atoms and having 1 or more and 4 or less hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0366] (Appendix A10)

[0367] A composition containing a treating agent for polyester synthetic fibers, characterized in that,

[0368] it contains the treating agent for polyester synthetic fibers as described in any one of Appendices A1 to A9 and a solvent.

[0369] (Appendix A11)

[0370] A first treating agent for polyester synthetic fibers of two - component type, which contains the following silicone (A), an anionic component, and optionally contains the following silicone (C), and is used in combination with a second treating agent for polyester synthetic fibers of two - component type containing the following silicone (B),

[0371] characterized in that,

[0372] It is contained in such a manner that the content ratio of the silicone (C) in the mixture of the above-mentioned two-component type first treating agent for polyester synthetic fibers and the above-mentioned two-component type second treating agent for polyester synthetic fibers is less than 10% by mass.

[0373] Silicone (A): A modified silicone having an amino group in the molecule.

[0374] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0375] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone.

[0376] (Appendix A12)

[0377] The two-component type first treating agent for polyester synthetic fibers as described in Appendix A11, wherein,

[0378] Furthermore, it contains the following silicone (D) and the following nonionic surfactant.

[0379] Silicone (D): A silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0380] Nonionic surfactant: At least one selected from compounds obtained by adding a total of 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 to 18 carbon atoms and 1 to 4 hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0381] (Appendix A13)

[0382] A two-component type second treating agent for polyester synthetic fibers, which contains the following silicone (B) and is used in combination with a two-component type first treating agent for polyester synthetic fibers containing the following silicone (A), an anionic component, and optionally containing the following silicone (C),

[0383] It is characterized in that,

[0384] The above-mentioned two-component type first treating agent for polyester synthetic fibers is contained in such a manner that the content ratio of the above-mentioned silicone (C) in the mixture of the above-mentioned two-component type first treating agent for polyester synthetic fibers and the above-mentioned two-component type second treating agent for polyester synthetic fibers is less than 10% by mass.

[0385] Silicone (A): A modified silicone having an amino group in the molecule.

[0386] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0387] Silicone (C): at least one selected from silicone resins, dimethyl silicone, and alkyl-modified silicone.

[0388] (Appendix A14)

[0389] A two-component second treating agent for polyester synthetic fibers as described in Appendix A13, wherein

[0390] The above-mentioned two-component first treating agent for polyester synthetic fibers further contains the following silicone (D) and the following nonionic surfactant.

[0391] Silicone (D): a silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0392] Nonionic surfactant: at least one selected from compounds obtained by adding a total of 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 or more and 18 or less carbon atoms and having one or more and four or less hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0393] (Appendix A15)

[0394] A three-component first treating agent for polyester synthetic fibers, which contains the following silicone (A), an anionic component, and optionally contains the following silicone (C), and is used in combination with a three-component second treating agent for polyester synthetic fibers containing the following silicone (D) and a three-component third treating agent for polyester synthetic fibers containing the following silicone (B),

[0395] Characterized in that

[0396] Either or both of the above-mentioned three-component first treating agent for polyester synthetic fibers and the above-mentioned three-component second treating agent for polyester synthetic fibers contain the following nonionic surfactant,

[0397] It is contained in such a manner that the content ratio of the above-mentioned silicone (C) in the mixture of the above-mentioned three-component first treating agent for polyester synthetic fibers, the above-mentioned three-component second treating agent for polyester synthetic fibers, and the above-mentioned three-component third treating agent for polyester synthetic fibers is less than 10% by mass.

[0398] Silicone (A): a modified silicone having an amino group in the molecule.

[0399] Silicone (B): a silane coupling agent having at least one functional group selected from methoxy, ethoxy, amino, and isocyanate groups in the molecule and not containing an epoxy group.

[0400] Silicone (C): at least one selected from silicone resins, dimethyl silicone, and alkyl-modified silicone.

[0401] Silicone (D): A silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0402] Nonionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 1 to 4 carbon atoms and 2 to 18 carbon atoms, and block copolymers formed by a polyoxyethylene chain and a polyoxypropylene chain.

[0403] (Appendix A16)

[0404] A type 3 second treating agent for polyester synthetic fibers, which contains the following silicone (D) and is used in combination with a type 3 first treating agent for polyester synthetic fibers containing the following silicone (A), an anionic component, and optionally the following silicone (C) and a type 3 third treating agent for polyester synthetic fibers containing the following silicone (B).

[0405] It is characterized in that

[0406] Either or both of the above-mentioned type 3 first treating agent for polyester synthetic fibers and the above-mentioned type 3 second treating agent for polyester synthetic fibers contain the following nonionic surfactant.

[0407] The above-mentioned type 3 first treating agent for polyester synthetic fibers is contained in such a manner that the content ratio of the above-mentioned silicone (C) in the mixture of the type 3 first treating agent for polyester synthetic fibers, the above-mentioned type 3 second treating agent for polyester synthetic fibers, and the above-mentioned type 3 third treating agent for polyester synthetic fibers is less than 10% by mass.

[0408] Silicone (A): A modified silicone having an amino group in the molecule.

[0409] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0410] Silicone (C): At least one selected from silicone resins, dimethyl silicone, and alkyl-modified silicone.

[0411] Silicone (D): A silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0412] Nonionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 1 to 4 carbon atoms and 2 to 18 carbon atoms, and block copolymers formed by a polyoxyethylene chain and a polyoxypropylene chain.

[0413] (Appendix A17)

[0414] A type 3 treating agent for polyester synthetic fibers, which contains the following silicone (B) and is used in combination with a type 3 treating agent for polyester synthetic fibers containing the following silicone (A), an anionic component, and optionally the following silicone (C), and a type 3 treating agent for polyester synthetic fibers containing the following silicone (D).

[0415] It is characterized in that

[0416] Either one or both of the above-mentioned type 3 treating agent for polyester synthetic fibers and the above-mentioned type 3 treating agent for polyester synthetic fibers contain the following nonionic surfactant.

[0417] The above-mentioned type 3 treating agent for polyester synthetic fibers is contained in such a manner that the content ratio of the above-mentioned silicone (C) in the mixture of the type 3 treating agent for polyester synthetic fibers, the above-mentioned type 3 treating agent for polyester synthetic fibers, and the above-mentioned type 3 treating agent for polyester synthetic fibers is less than 10% by mass.

[0418] Silicone (A): A modified silicone having an amino group in the molecule.

[0419] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0420] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone.

[0421] Silicone (D): A silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0422] Nonionic surfactant: At least one selected from a compound obtained by adding 3 moles or more and 50 moles or less of alkylene oxide having 2 to 3 carbon atoms to 1 mole of an alcohol having 2 to 18 carbon atoms and 1 to 4 hydroxyl groups, and a block copolymer formed by a polyoxyethylene chain and a polyoxypropylene chain.

[0423] (Appendix A18)

[0424] A composition containing a type 1 treating agent for polyester synthetic fibers of type 2, which is characterized in that

[0425] It contains the type 1 treating agent for polyester synthetic fibers described in Appendix A11 or A12 and a solvent.

[0426] (Appendix A19)

[0427] A composition containing a type-3 first treating agent for polyester synthetic fibers, characterized in that,

[0428] it contains the type-3 first treating agent for polyester synthetic fibers described in Appendix A15 and a solvent.

[0429] (Appendix A20)

[0430] A composition containing a type-3 second treating agent for polyester synthetic fibers, characterized in that,

[0431] it contains the type-3 second treating agent for polyester synthetic fibers described in Appendix A16 and a solvent.

[0432] (Appendix A21)

[0433] A method for treating polyester synthetic fibers, characterized in that,

[0434] a dilution of a treating agent for polyester synthetic fibers is applied to the polyester synthetic fibers,

[0435] the above-mentioned dilution of the treating agent for polyester synthetic fibers is obtained by adding the composition containing the type-2 first treating agent for polyester synthetic fibers described in Appendix A18 and the type-2 second treating agent for polyester synthetic fibers described in Appendix A13 to a solvent.

[0436] (Appendix A22)

[0437] A method for treating polyester synthetic fibers, characterized in that,

[0438] a dilution of a treating agent for polyester synthetic fibers is applied to the polyester synthetic fibers,

[0439] the above-mentioned dilution of the treating agent for polyester synthetic fibers is obtained by adding the composition containing the type-3 first treating agent for polyester synthetic fibers described in Appendix A19, the composition containing the type-3 second treating agent for polyester synthetic fibers described in Appendix A20, and the type-3 third treating agent for polyester synthetic fibers described in Appendix A17 to a solvent.

[0440] (Appendix A23)

[0441] For the method for treating polyester synthetic fibers as described in Appendix A21 or A22, wherein,

[0442] further, heat treatment is performed on the fibers to which the above-mentioned dilution of the treating agent for polyester synthetic fibers has been applied at a temperature of 100 °C or higher and 200 °C or lower.

[0443] (Appendix A24)

[0444] A polyester synthetic fiber, characterized in that,

[0445] Attached with the treating agent for polyester synthetic fiber described in any one of Appendix A1 to A9.

[0446] (Appendix A25)

[0447] The polyester synthetic fiber described in Appendix A24, which is suitable for filling cotton.

[0448] (Appendix B1)

[0449] A treating agent combination for polyester synthetic fiber, which is a combination containing a two-component type 1 treating agent for polyester synthetic fiber and a two-component type 2 treating agent for polyester synthetic fiber. The above two-component type 1 treating agent for polyester synthetic fiber contains the following silicone (A), anionic component, and optionally contains the following silicone (C). The above two-component type 2 treating agent for polyester synthetic fiber contains the following silicone (B).

[0450] In the treating agent for polyester synthetic fiber obtained by mixing the above two-component type 1 treating agent for polyester synthetic fiber and the above two-component type 2 treating agent for polyester synthetic fiber, the content ratio of the silicone (C) is less than 10% by mass.

[0451] Silicone (A): A modified silicone having an amino group in the molecule.

[0452] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0453] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, but excluding those conforming to the above silicone (A) and silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0454] (Appendix B2)

[0455] The treating agent combination for polyester synthetic fiber described in Appendix B1, wherein

[0456] In the treating agent for polyester synthetic fiber obtained by mixing the above two-component type 1 treating agent for polyester synthetic fiber and the above two-component type 2 treating agent for polyester synthetic fiber, when the content ratio of the silicone (A) is set to 100 parts by mass, the content ratio of the silicone (B) is 5 parts by mass or more and 200 parts by mass or less.

[0457] (Appendix B3)

[0458] The treating agent combination for polyester synthetic fiber described in Appendix B1 or B2, wherein

[0459] The above two-component type 1 treating agent for polyester synthetic fiber further contains the following silicone (D) and the following nonionic surfactant.

[0460] Silicone (D): A silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0461] Nonionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of an alcohol having 2 or more and 18 or less carbon atoms and having 1 or more and 4 or less hydroxyl groups, and block copolymers formed from polyoxyethylene chains and polyoxypropylene chains.

[0462] (Appendix B4)

[0463] A treatment agent combination for polyester synthetic fibers, which is a combination comprising a first treatment agent for polyester synthetic fibers in a three-component type, a second treatment agent for polyester synthetic fibers in a three-component type, and a third treatment agent for polyester synthetic fibers in a three-component type.

[0464] The above-mentioned first treatment agent for polyester synthetic fibers in a three-component type contains the following silicone (A), an anionic component, and optionally contains the following silicone (C).

[0465] The above-mentioned second treatment agent for polyester synthetic fibers in a three-component type contains the following silicone (D).

[0466] The above-mentioned third treatment agent for polyester synthetic fibers in a three-component type contains the following silicone (B).

[0467] Either one or both of the above-mentioned first treatment agent for polyester synthetic fibers in a three-component type and the above-mentioned second treatment agent for polyester synthetic fibers in a three-component type contain the following nonionic surfactant.

[0468] In the treatment agent for polyester synthetic fibers obtained by mixing the above-mentioned first treatment agent for polyester synthetic fibers in a three-component type, the above-mentioned second treatment agent for polyester synthetic fibers in a three-component type, and the above-mentioned third treatment agent for polyester synthetic fibers in a three-component type, the content ratio of the above-mentioned silicone (C) is less than 10% by mass.

[0469] Silicone (A): A modified silicone having an amino group in the molecule.

[0470] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0471] Silicone (C): At least one selected from silicone resins, dimethyl silicone, and alkyl-modified silicone, excluding those conforming to the above-mentioned silicone (A) and silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0472] Silicone (D): A silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0473] Nonionic surfactant: at least one selected from compounds formed by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 or more and 18 or less carbon atoms and having one or more and four or less hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0474] (Appendix B5)

[0475] The treatment agent combination for polyester synthetic fibers as described in Appendix B4, wherein

[0476] In the treatment agent for polyester synthetic fibers obtained by mixing the above-mentioned three-component type 1 treatment agent for polyester synthetic fibers, the above-mentioned three-component type 2 treatment agent for polyester synthetic fibers, and the above-mentioned three-component type 3 treatment agent for polyester synthetic fibers, when the content ratio of the silicone (A) is set to 100 parts by mass, the content ratio of the silicone (B) is 5 parts by mass or more and 200 parts by mass or less.

[0477] (Appendix B6)

[0478] The treatment agent combination for polyester synthetic fibers as described in any one of Appendix B1 to B5, wherein

[0479] The above-mentioned anionic component includes at least one selected from organic acids, alkyl sulfonic acids, alkyl phosphates, polyoxyalkylene alkyl phosphates, and metal salts thereof.

[0480] (Appendix B7)

[0481] A method for manufacturing a composition containing a treatment agent for polyester synthetic fibers, characterized in that

[0482] Mix the above-mentioned two-component type 1 treatment agent for polyester synthetic fibers, the above-mentioned two-component type 2 treatment agent for polyester synthetic fibers, and a solvent in the treatment agent combination for polyester synthetic fibers as described in any one of Appendix B1 to B3.

[0483] (Appendix B8)

[0484] A method for manufacturing a composition containing a treatment agent for polyester synthetic fibers, characterized in that

[0485] Mix the above-mentioned three-component type 1 treatment agent for polyester synthetic fibers, the above-mentioned three-component type 2 treatment agent for polyester synthetic fibers, the above-mentioned three-component type 3 treatment agent for polyester synthetic fibers, and a solvent in the treatment agent combination for polyester synthetic fibers as described in Appendix B4 or B5.

[0486] (Appendix B9)

[0487] A type 2 first treating agent for polyester synthetic fibers, which contains the following silicone (A), anionic component, and optionally contains the following silicone (C), and is used in combination with a type 2 second treating agent for polyester synthetic fibers containing the following silicone (B) when in use.

[0488] It is characterized in that

[0489] it contains in such a manner that the content ratio of the above-mentioned silicone (C) in the mixture of the above-mentioned type 2 first treating agent for polyester synthetic fibers and the above-mentioned type 2 second treating agent for polyester synthetic fibers is less than 10% by mass.

[0490] Silicone (A): A modified silicone having an amino group in the molecule.

[0491] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy, ethoxy, amino, and isocyanate groups in the molecule and not containing an epoxy group.

[0492] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, excluding those conforming to the above-mentioned silicone (A) and silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0493] (Appendix B10)

[0494] The type 2 first treating agent for polyester synthetic fibers as described in Appendix B9, wherein

[0495] it further contains the following silicone (D) and the following nonionic surfactant.

[0496] Silicone (D): A silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0497] Nonionic surfactant: At least one selected from compounds obtained by adding a total of 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 to 18 carbon atoms and having one or more and four or less hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0498] (Appendix B11)

[0499] A type 2 second treating agent for polyester synthetic fibers, which contains the following silicone (B), and is used in combination with a type 2 first treating agent for polyester synthetic fibers containing the following silicone (A), anionic component, and optionally containing the following silicone (C) when in use.

[0500] It is characterized in that

[0501] The polyester synthetic fiber type-2 first treating agent is contained in such a manner that the content ratio of the silicone (C) in the mixture of the polyester synthetic fiber type-2 first treating agent and the polyester synthetic fiber type-2 second treating agent is less than 10% by mass.

[0502] Silicone (A): A modified silicone having an amino group in the molecule.

[0503] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0504] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, excluding those conforming to the above silicone (A) and silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0505] (Appendix B12)

[0506] A polyester synthetic fiber type-2 second treating agent as described in Appendix B11, wherein

[0507] The polyester synthetic fiber type-2 first treating agent further contains the following silicone (D) and the following nonionic surfactant.

[0508] Silicone (D): A silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0509] Nonionic surfactant: At least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 to 18 carbon atoms and 1 to 4 hydroxyl groups, and block copolymers formed by a polyoxyethylene chain and a polyoxypropylene chain.

[0510] (Appendix B13)

[0511] A polyester synthetic fiber type-3 first treating agent containing the following silicone (A), an anionic component, and optionally containing the following silicone (C), and used in combination with a polyester synthetic fiber type-3 second treating agent containing the following silicone (D) and a polyester synthetic fiber type-3 third treating agent containing the following silicone (B) during use,

[0512] Characterized in that

[0513] Either or both of the polyester synthetic fiber type-3 first treating agent and the polyester synthetic fiber type-3 second treating agent contain the following nonionic surfactant,

[0514] It is contained in such a manner that the content ratio of the silicone (C) in the mixture of the above-mentioned three-component type first treating agent for polyester synthetic fibers, the above-mentioned three-component type second treating agent for polyester synthetic fibers, and the above-mentioned three-component type third treating agent for polyester synthetic fibers is less than 10% by mass.

[0515] Silicone (A): A modified silicone having an amino group in the molecule.

[0516] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group.

[0517] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, excluding those conforming to the above-mentioned silicone (A) and silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0518] Silicone (D): A silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0519] Nonionic surfactant: At least one selected from compounds obtained by adding a total of 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 to 18 carbon atoms and 1 to 4 hydroxyl groups, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

[0520] (Appendix B14)

[0521] A three-component type second treating agent for polyester synthetic fibers, which contains the following silicone (D) and is used in combination with a three-component type first treating agent for polyester synthetic fibers containing the following silicone (A), an anionic component, and optionally the following silicone (C), and a three-component type third treating agent for polyester synthetic fibers containing the following silicone (B).

[0522] It is characterized in that

[0523] Either one or both of the above-mentioned three-component type first treating agent for polyester synthetic fibers and the above-mentioned three-component type second treating agent for polyester synthetic fibers contain the following nonionic surfactant.

[0524] The above-mentioned three-component type first treating agent for polyester synthetic fibers is contained in such a manner that the content ratio of the above-mentioned silicone (C) in the mixture of the three-component type first treating agent for polyester synthetic fibers, the above-mentioned three-component type second treating agent for polyester synthetic fibers, and the above-mentioned three-component type third treating agent for polyester synthetic fibers is less than 10% by mass.

[0525] Silicone (A): A modified silicone having an amino group in the molecule.

[0526] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing epoxy group.

[0527] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, excluding those conforming to the above silicone (A) and silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0528] Silicone (D): Silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0529] Nonionic surfactant: At least one selected from a compound obtained by adding 3 moles or more and 50 moles or less of alkylene oxide having 2 to 3 carbon atoms to 1 mole of an alcohol having 2 to 18 carbon atoms and 1 to 4 hydroxyl groups, and a block copolymer formed by a polyoxyethylene chain and a polyoxypropylene chain.

[0530] (Appendix B15)

[0531] A three-component type 3 treating agent for polyester synthetic fibers, which contains the following silicone (B) and is used in combination with a three-component type 1 treating agent for polyester synthetic fibers containing the following silicone (A), an anionic component, and optionally the following silicone (C) and a three-component type 2 treating agent for polyester synthetic fibers containing the following silicone (D).

[0532] It is characterized in that

[0533] Either one or both of the above three-component type 1 treating agent for polyester synthetic fibers and the above three-component type 2 treating agent for polyester synthetic fibers contain the following nonionic surfactant.

[0534] The three-component type 1 treating agent for polyester synthetic fibers is contained in such a manner that the content ratio of the above silicone (C) in the mixture of the three-component type 1 treating agent for polyester synthetic fibers, the above three-component type 2 treating agent for polyester synthetic fibers, and the above three-component type 3 treating agent for polyester synthetic fibers is less than 10% by mass.

[0535] Silicone (A): A modified silicone having an amino group in the molecule.

[0536] Silicone (B): A silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing epoxy group.

[0537] Silicone (C): At least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, excluding those conforming to the above silicone (A) and silanol-modified silicone having a number-average molecular weight of 20,000 or more and less than 200,000.

[0538] Silicone (D): a silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

[0539] Nonionic surfactant: at least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 2 or more and 18 or less carbon atoms and having 1 or more and 4 or less hydroxyl groups, and block copolymers formed by a polyoxyethylene chain and a polyoxypropylene chain.

[0540] (Appendix B16)

[0541] A composition containing a type 2 first treating agent for polyester synthetic fibers, characterized in that

[0542] It contains the type 2 first treating agent for polyester synthetic fibers described in Appendix B9 or B10 and a solvent.

[0543] (Appendix B17)

[0544] A composition containing a type 3 first treating agent for polyester synthetic fibers, characterized in that

[0545] It contains the type 3 first treating agent for polyester synthetic fibers described in Appendix B13 and a solvent.

[0546] (Appendix B18)

[0547] A composition containing a type 3 second treating agent for polyester synthetic fibers, characterized in that

[0548] It contains the type 3 second treating agent for polyester synthetic fibers described in Appendix B14 and a solvent.

[0549] (Appendix B19)

[0550] A method for treating polyester synthetic fibers, characterized in that

[0551] A dilution of a treating agent for polyester synthetic fibers is applied to the polyester synthetic fibers.

[0552] The dilution of the treating agent for polyester synthetic fibers is obtained by adding the composition containing the type 2 first treating agent for polyester synthetic fibers described in Appendix B16 and the type 2 second treating agent for polyester synthetic fibers described in Appendix B11 to a solvent.

[0553] (Appendix B20)

[0554] A method for treating polyester synthetic fibers, characterized in that

[0555] A dilution of a treating agent for polyester synthetic fibers is applied to the polyester synthetic fibers.

[0556] The diluent of the treatment agent for polyester synthetic fibers is obtained by adding the composition containing the first treatment agent of the three-component type for polyester synthetic fibers described in Appendix B17, the composition containing the second treatment agent of the three-component type for polyester synthetic fibers described in Appendix B18, and the third treatment agent of the three-component type for polyester synthetic fibers described in Appendix B15 to a solvent.

[0557] (Appendix B21)

[0558] A method for treating polyester synthetic fibers as described in Appendix B19 or B20, wherein

[0559] Furthermore, heat treatment is performed on the fibers to which the diluent of the treatment agent for polyester synthetic fibers has been applied at a temperature of 100°C or higher and 200°C or lower.

[0560] (Appendix B22)

[0561] A method for manufacturing polyester synthetic fibers, characterized in that

[0562] The diluent of the treatment agent for polyester synthetic fibers is made to adhere to the polyester synthetic fibers,

[0563] The diluent of the treatment agent for polyester synthetic fibers is obtained by mixing the first treatment agent of the two-component type for polyester synthetic fibers and the second treatment agent of the two-component type for polyester synthetic fibers in the treatment agent combination for polyester synthetic fibers described in any one of Appendices B1 to B3 in a solvent.

[0564] (Appendix B23)

[0565] A method for manufacturing polyester synthetic fibers, characterized in that

[0566] The diluent of the treatment agent for polyester synthetic fibers is made to adhere to the polyester synthetic fibers,

[0567] The diluent of the treatment agent for polyester synthetic fibers is obtained by mixing the first treatment agent of the three-component type for polyester synthetic fibers, the second treatment agent of the three-component type for polyester synthetic fibers, and the third treatment agent of the three-component type for polyester synthetic fibers in the treatment agent combination for polyester synthetic fibers described in Appendix B4 or B5 in a solvent.

[0568] (Appendix B24)

[0569] The method for manufacturing polyester synthetic fibers as described in Appendix B22 or B23 is applicable to filling cotton.

Claims

1. A treating agent for polyester synthetic fibers, characterized in that, it contains the following first silicone, the following silane coupling agent, an anionic component, the following second silicone, and optionally contains the following third silicone, and the content ratio of the third silicone in the treating agent is less than 10% by mass, First silicone: a modified silicone having an amino group in the molecule, Silane coupling agent: a silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group, Second silicone: a silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000, Third silicone: at least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, but excluding those conforming to the above first silicone and silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000.

2. A treating agent for polyester synthetic fibers, characterized in that, it contains the following first silicone, the following silane coupling agent, an anionic component, the following nonionic surfactant, and optionally contains the following third silicone, and the content ratio of the third silicone in the treating agent is less than 10% by mass, First silicone: a modified silicone having an amino group in the molecule, Silane coupling agent: a silane coupling agent having at least one functional group selected from methoxy group, ethoxy group, amino group, and isocyanate group in the molecule and not containing an epoxy group, Third silicone: at least one selected from silicone resin, dimethyl silicone, and alkyl-modified silicone, but excluding those conforming to the above first silicone and silanol-modified silicone having a number average molecular weight of 20,000 or more and less than 200,000, Nonionic surfactant: at least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 1 to 4 carbon atoms and 2 to 18 carbon atoms, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

3. The treating agent for polyester synthetic fibers according to claim 1 or 2, wherein, when the content ratio of the first silicone is set to 100 parts by mass, the content ratio of the silane coupling agent is 5 parts by mass or more and 200 parts by mass or less.

4. The treating agent for polyester synthetic fibers according to claim 1 or 2, wherein, the anionic component includes at least one selected from organic acids other than alkyl sulfonic acid, alkyl sulfonic acid, alkyl phosphate, polyoxyalkylene alkyl phosphate, and their metal salts.

5. The treating agent for polyester synthetic fibers according to claim 1, wherein, it further contains the following nonionic surfactant, Nonionic surfactant: at least one selected from compounds obtained by adding 3 moles or more and 50 moles or less of alkylene oxides having 2 to 3 carbon atoms to 1 mole of alcohols having 1 to 4 carbon atoms and 2 to 18 carbon atoms, and block copolymers formed by polyoxyethylene chains and polyoxypropylene chains.

6. The treating agent for polyester synthetic fibers according to claim 5, wherein, The content ratios of the respective components in the above-mentioned treating agent for polyester synthetic fibers are as follows: the above-mentioned first silicone is 5% by mass or more and 80% by mass or less, the above-mentioned silane coupling agent is 1% by mass or more and 25% by mass or less, the above-mentioned second silicone is 5% by mass or more and 90% by mass or less, the above-mentioned third silicone is 0% by mass or more and less than 10% by mass, the above-mentioned nonionic surfactant is 1% by mass or more and 25% by mass or less, and the above-mentioned anionic component is 0.1% by mass or more and 25% by mass or less.

7. A composition containing a treating agent for polyester synthetic fibers, characterized in that it contains the treating agent for polyester synthetic fibers according to any one of claims 1 to 6 and a solvent.

8. A polyester synthetic fiber, characterized in that it is attached with the treating agent for polyester synthetic fibers according to any one of claims 1 to 6.

9. The polyester synthetic fiber according to claim 8, which is suitable for filling cotton.

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