Treatment agent for elastic fibers, and elastic fibers

Abstract

The agent for treating elastic fibers improves the metal friction of the elastic fibers to which it is attached, and also improves the formulation stability of the agent for treating elastic fibers. The treatment agent for elastic fibers contains an amide compound (A) represented by formula (1) and the following base (B): Base (B): At least two selected from a dimethyl silicone compound (B1), a hydrocarbon oil (B2), and an ester compound (B3).

Description

[Technical Field]

[0001] The present invention relates to a treating agent for elastic fibers and elastic fibers. [Background technology]

[0002] For example, elastic fibers, which are a type of synthetic fiber, have stronger interfiber adhesion than other synthetic fibers. After the elastic fibers are spun and wound onto a winding roll to form a package, they can be difficult to stably unwind from the package when pulled out from the package and subjected to a processing step. Therefore, in order to stably unwind the elastic fibers from the package, an oil agent is sometimes applied to the elastic fibers during the spinning process of the elastic fibers.

[0003] Patent Document 1 discloses a treatment agent for elastic fibers that is composed of at least one selected from silicone oil, mineral oil, and ester oil as a base component. By applying this treatment agent to elastic fibers, thread breakage of the elastic fibers is suppressed during the knitting and weaving process for producing knitted or woven fabrics using elastic fibers and cotton yarn.

[0004] Patent Document 2 discloses a method for producing urethane elastic fibers. After melt-spinning a urethane polymer while adding a spinning oil, a non-aqueous oil containing a linear polyalkylene oxide-modified polydimethylsiloxane having a specific structural formula is added to the solidified yarn. By adding the non-aqueous oil, the yarn wound around a bobbin after melt-spinning is prevented from sticking to the bobbin. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-92011 [Patent Document 2] Japanese Patent Application Publication No. 8-209458 Summary of the Invention [Problem to be solved by the invention]

[0006] However, there is a demand for elastic fiber treatment agents to reduce friction between metal members such as rollers and the elastic fiber during the processing of the elastic fiber to which the elastic fiber treatment agent is applied, i.e., to improve frictional properties against metals. There is also a demand for further improvement in formulation stability of elastic fiber treatment agents. [Means for solving the problem]

[0007] As a result of research conducted by the present inventors to solve the above problems, they found that a treatment agent for elastic fibers containing a specific amide compound (A) and a base (B) is exactly suitable. Various aspects for solving the above problems will be described.

[0008] The treatment agent for elastic fibers of embodiment 1 contains an amide compound (A) represented by the following formula (1) and a base (B) described below, To, strange Resistant Silicone (C) Contains The treatment agent for elastic fibers contains the amide compound (A) in an amount of 0.01% by mass or more and 5% by mass or less, the base (B) in an amount of 70% by mass or more and 99.89% by mass or less, and the modified silicone (C) in an amount of 0.1% by mass or more and 10% by mass or less. The gist of this is to

[0009] [ka]

[0010] (In formula (1), R 1 : A hydrocarbon group having 1 to 23 carbon atoms. R 2 ,R 3 :R 2 , and R 3 represents a hydrocarbon group having 1 to 24 carbon atoms, or a substituent represented by the following formula (2):

[0011] [ka]

[0012] (In formula (2), A 1O: an alkyleneoxy group having 2 to 4 carbon atoms. (However, when a plurality of alkyleneoxy groups are present, they may be one type alone or two or more types.) n: An integer between 1 and 5. Base (B): At least two selected from a dimethyl silicone compound (B1), a hydrocarbon oil (B2), and an ester compound (B3), wherein the ester compound (B3) is an ester compound of an aliphatic monoalcohol and an aliphatic monocarboxylic acid.

[0013] Aspect 2 is the treatment agent for elastic fibers according to Aspect 1, wherein R 1 is a hydrocarbon group having 11 to 23 carbon atoms. Aspect 3 is the treatment agent for elastic fibers according to Aspect 1 or 2, wherein R 2 , and R 3 is a substituent represented by the formula (2), and 1 O is an ethyleneoxy group and n is 1.

[0014] Aspects 4 The elastic fiber of the embodiment 1 to 3 The gist is that the treating agent for elastic fibers according to any one of the above aspects is attached to the elastic fiber. [Effects of the Invention]

[0015] According to the present invention, it is possible to improve the metal friction properties of elastic fibers to which a processing agent for elastic fibers is attached, and also to improve the formulation stability of the processing agent for elastic fibers. DETAILED DESCRIPTION OF THE INVENTION

[0016] First Embodiment A first embodiment of the treatment agent for elastic fibers (hereinafter simply referred to as the treatment agent) of the present invention will be described below. The treatment agent of this embodiment contains an amide compound (A) represented by the following formula (1) and a base (B) described below.

[0017] [ka]

[0018] (In formula (1), R 1 : A hydrogen atom or a hydrocarbon group having 1 to 23 carbon atoms. R 2 ,R 3 :R 2 , and R 3 At least one of the above is a hydrocarbon group having 1 to 24 carbon atoms, or a substituent represented by the following formula (2):

[0019] [ka]

[0020] (In formula (2), A 1 O: an alkyleneoxy group having 2 to 4 carbon atoms. (However, when a plurality of alkyleneoxy groups are present, they may be one type alone or two or more types.) n: An integer between 1 and 5. Base (B): At least two selected from a dimethyl silicone compound (B1), a hydrocarbon oil (B2), and an ester compound (B3).

[0021] (Amide compound (A)) In the amide compound (A) represented by the above formula (1), the hydrocarbon group having 1 to 23 carbon atoms is not particularly limited and may be a linear hydrocarbon group, a branched hydrocarbon group, or an aromatic hydrocarbon group.

[0022] Specific examples of straight-chain hydrocarbon groups include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, pentadecenyl, hexadecyl (cetyl), heptadecyl, heptadecenyl, octadecyl (stearyl), nonadecyl, icosyl, henicosyl, docosyl, and tricosyl groups.

[0023] Specific examples of branched chain hydrocarbon groups include isopropyl, isobutyl, isopentyl, isohexyl, isoheptyl, isooctyl, isononyl, isodecyl, isoundecyl, isododecyl, isotridecyl, isotetradecyl, isopentadecyl, isohexadecyl, isoheptadecyl, isooctadecyl, isononadecyl, isoicosyl, isohenicosyl, isodocosyl, and isotricosyl groups.

[0024] Specific examples of the aromatic hydrocarbon group include a phenyl group, a naphthyl group, a benzyl group, an anthracenyl group, a pyrenyl group, a naphthopyrenyl group, and a 2-naphthalenedodecyl group.

[0025] In the above formula (1), the hydrocarbon group having 1 to 24 carbon atoms is not particularly limited. In addition to the specific examples of the hydrocarbon group having 1 to 23 carbon atoms, for example, a tetracosyl group, an isotetracosyl group, etc. can be mentioned.

[0026] In the above formula (2), examples of the alkyleneoxy group having 2 to 4 carbon atoms include an ethyleneoxy group, a propyleneoxy group, and a butyleneoxy group. When a plurality of alkyleneoxy groups are present, they may be block adducts or random adducts.

[0027] In the amide compound (A) represented by the above formula (1), R 1 R is preferably a hydrocarbon group having 11 to 23 carbon atoms.1 When is a hydrocarbon group having 11 or more and 23 or less carbon atoms, the metal friction properties of the elastic fiber to which the treatment agent is attached can be further improved.

[0028] In the amide compound (A) represented by the above formula (1), R 2 , and R 3 is A in the above formula (2). 1 Preferably, O is an ethyleneoxy group and n is 1. 2 , and R 3 is A in the above formula (2). 1 When O is an ethyleneoxy group and n is 1, the formulation stability of the treatment agent can be further improved.

[0029] The amide compound (A) can be, for example, the above R 1 and a fatty acid having a substituent of the above R 2 ,R 3 The compound can be prepared by subjecting an amine having the following substituent group to a dehydration condensation reaction. (Base (B)) The base (B) is at least two selected from a dimethyl silicone compound (B1), a hydrocarbon oil (B2), and an ester compound (B3).

[0030] (Dimethyl silicone compound (B1)) As the dimethyl silicone compound (B1), for example, a dimethyl silicone compound having a kinematic viscosity of 5 mm at 25°C is used. 2 / s or more 100mm 2 The kinematic viscosity at 25°C is measured in accordance with JIS Z 8803.

[0031] Specific examples of the dimethyl silicone compound (B1) include those having a kinematic viscosity of 5 mm at 25°C. 2 / s, a dimethyl silicone compound with a kinematic viscosity of 10 mm at 25 °C 2 / s, a dimethylsilicone compound having a kinematic viscosity of 100mm at 25°C 2 Examples include dimethyl silicone compounds, which are / s.

[0032] The dimethyl silicone compound (B1) may be used alone or in combination of two or more. The dimethyl silicone compound (B1) may be linear or cyclic, or may be a mixture thereof.

[0033] (Hydrocarbon oil (B2)) Examples of the hydrocarbon oil (B2) include liquid paraffin obtained from petroleum fractions, and α-olefin polymers obtained by polymerizing α-olefins.

[0034] Specific examples of hydrocarbon oils (B2) include Diana Fresia W-8 (manufactured by Idemitsu Kosan Co., Ltd.), Cosmo Pure Spin RC (manufactured by Cosmo Oil Lubricants Co., Ltd.), and a mixture of Ultra-S3 (manufactured by S-OIL Corporation) and Diana Fresia W-32 (manufactured by Idemitsu Kosan Co., Ltd.) in a mass ratio of 4:1.

[0035] The hydrocarbon oil (B2) may be used alone or in combination of two or more. (Ester compound (B3)) The ester compound (B3) is not particularly limited, but examples thereof include ester compounds produced from fatty acids and alcohols.

[0036] The fatty acid used as a raw material for the ester compound (B3) is not particularly limited in terms of the number of carbon atoms, whether or not it is branched, its valence, etc., and may be, for example, a higher fatty acid, a fatty acid having a cyclo ring, or a fatty acid having an aromatic ring. The alcohol used as a raw material for the ester compound (B3) is not particularly limited in terms of the number of carbon atoms, whether or not it is branched, its valence, etc., and may be, for example, a higher alcohol, an alcohol having a cyclo ring, or an alcohol having an aromatic ring.

[0037] Specific examples of the ester compound (B3) include: (1) ester compounds of aliphatic monoalcohols and aliphatic monocarboxylic acids, such as butyl stearate, octyl palmitate, octyl stearate, oleyl laurate, oleyl oleate, isotridecyl stearate, isotetracosyl oleate, propyl isostearate, and 2-ethylhexyl stearate; (2) ester compounds of aliphatic polyhydric alcohols and aliphatic monocarboxylic acids, such as 1,6-hexanediol didecanate, glycerin trioleate, trimethylolpropane trilaurate, and pentaerythritol tetraoctanate; (3) dioleyl azelate, dioleyl thiodipropionate, and thiodipropionate; (3) ester compounds of an aliphatic monoalcohol and an aliphatic polycarboxylic acid, such as diisocetyl propionate and diisostearyl thiodipropionate; (4) ester compounds of an aromatic monoalcohol and an aliphatic monocarboxylic acid, such as benzyl oleate and benzyl laurate; (5) complete ester compounds of an aromatic polyhydric alcohol and an aliphatic monocarboxylic acid, such as bisphenol A dilaurate; (6) complete ester compounds of an aliphatic monoalcohol and an aromatic polycarboxylic acid, such as bis-2-ethylhexyl phthalate, diisostearyl isophthalate and trioctyl trimellitate; and (7) natural oils and fats, such as coconut oil, rapeseed oil, sunflower oil, soybean oil, castor oil, sesame oil, fish oil and beef tallow.

[0038] The ester compound (B3) may be used alone or in combination of two or more. (Amide compound (A) and base (B) content ratio) The content ratio of the amide compound (A) and the base (B) in the treatment agent is not particularly limited, but it is preferable that the treatment agent contains the amide compound (A) in an amount of 0.01% by mass or more and 30% by mass or less, and the base (B) in an amount of 70% by mass or more and 99.99% by mass or less.

[0039] It is more preferable that the treating agent contains the amide compound (A) in an amount of 0.01% by mass or more and 5% by mass or less, and the base (B) in an amount of 70% by mass or more and 99.99% by mass or less. When the content ratio of the amide compound (A) and the base (B) in the treatment agent is within the above numerical range, the formulation stability of the treatment agent can be further improved.

[0040] In the base (B), the treating agent preferably contains at least two selected from the dimethyl silicone compound (B1), hydrocarbon oil (B2), and ester compound (B3) in an amount of at least 5% by mass, and preferably at most 95% by mass.

[0041] (Modified silicone (C)) The treatment agent may further contain a modified silicone (C). Specific examples of modified silicones include phenyl-modified silicone, amino-modified silicone, amide-modified silicone, polyether-modified silicone, aminopolyether-modified silicone, alkyl-modified silicone, alkylaralkyl-modified silicone, alkylpolyether-modified silicone, ester-modified silicone, epoxy-modified silicone, carbinol-modified silicone, mercapto-modified silicone, polyoxyalkylene-modified silicone, carboxyl-modified silicone, and urea-modified silicone.

[0042] The modified silicone (C) may be used alone or in combination of two or more. When the treatment agent contains the modified silicone (C), the metal friction properties of the elastic fiber to which the treatment agent is attached can be further improved.

[0043] (Amide compound (A), base (B), and modified silicone (C) content ratios) The proportions of the amide compound (A), base (B), and modified silicone (C) contained in the treatment agent are not particularly limited. The treatment agent preferably contains 0.01 to 29.9% by mass of the amide compound (A), 70 to 99.89% by mass of the base (B), and 0.1 to 10% by mass of the modified silicone (C).

[0044] It is more preferable that the treatment agent contains 0.01% by mass or more and 5% by mass or less of the amide compound (A), 70% by mass or more and 99.89% by mass or less of the base (B), and 0.1% by mass or more and 10% by mass or less of the modified silicone (C).

[0045] (Other ingredients (D)) The treatment agent may further contain other components (D) besides the above-mentioned components, such as alcohols, chelating agents, solvents, surfactants, etc., depending on the application purpose or necessity, within the range that does not impair the effects of the present invention.

[0046] Specific examples of alcohols include propylene glycol, diethylene glycol, ethylene glycol, 2-ethylhexanol, dodecanol, isododecanol, isotridecanol, tetradecanol, isotetradecanol, isohexadecanol, octadecanol, isooctadecanol, octadecenol, polyethylene glycol, polypropylene glycol, and glycerin.

[0047] Specific examples of the chelating agent include disodium ethylenediaminetetraacetate, trisodium ethylenediamine-N,N'-disuccinate, and the like. The solvent has a boiling point of 105°C or lower at 1 atmosphere. Examples of the solvent include water and organic solvents. Specific examples of the organic solvent include lower alcohols such as ethanol and propanol, and low-polarity solvents such as hexane. These solvents may be used alone or in combination of two or more.

[0048] Examples of surfactants include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. These surfactants may be used alone or in combination of two or more.

[0049] (nonionic surfactant) Examples of nonionic surfactants include compounds having a (poly)oxyalkylene structure in which alkylene oxide is added to alcohols or carboxylic acids, ether / ester compounds having a (poly)oxyalkylene structure in which alkylene oxide is added to an ester compound of carboxylic acids and polyhydric alcohol, compounds in which alkylene oxide is added to natural fats and oils or compounds in which such compounds are esterified with carboxylic acids, amine compounds such as compounds having a (poly)oxyalkylene structure in which alkylene oxide is added to primary organic amines, and partial ester compounds of carboxylic acids and polyhydric alcohols.

[0050] Specific examples of alcohols used as raw materials for nonionic surfactants include: (1) linear alkyl alcohols such as methanol, ethanol, propanol, butanol, pentanol, hexanol, octanol, nonanol, decanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, heptadecanol, octadecanol, nonadecanol, eicosanol, heneicosanol, docosanol, tricosanol, tetracosanol, pentacosanol, hexacosanol, heptacosanol, octacosanol, nonacosanol, and triacontanol; (2) isopropanol, isobutanol, isohexanol, 2-ethylhexanol, isononanol, isodecanol, isododecanol, isotridecanol, isotetradecanol, isotriacontanol, and isohexanol; Branched alkyl alcohols such as sadecanol, isoheptadecanol, isooctadecanol, isonodecanol, isoeicosanol, isoheneicosanol, isodocosanol, isotricosanol, isotetracosanol, isopentacosanol, isohexacosanol, isoheptacosanol, isooctacosanol, isononacosanol, and isopentadecanol; (3) linear alkenyl alcohols such as tetradecenol, hexadecenol, heptadecenol, octadecenol, and nonadecenol; (4) branched alkenyl alcohols such as isohexadecenol and isooctadecenol; (5) cyclic alkyl alcohols such as cyclopentanol and cyclohexanol; and (6) aromatic alcohols such as phenol, nonylphenol, benzyl alcohol, monostyrenated phenol, distyrenated phenol, and tristyrenated phenol.

[0051] Specific examples of carboxylic acids used as raw materials for nonionic surfactants include: (1) linear alkyl carboxylic acids such as octylic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, heptadecanoic acid, octadecanoic acid, nonadecanoic acid, eicosanoic acid, heneicosanoic acid, and docosanoic acid; (2) branched alkyl carboxylic acids such as 2-ethylhexanoic acid, isododecanoic acid, isotridecanoic acid, isotetradecanoic acid, isohexadecanoic acid, and isooctadecanoic acid; (3) linear alkenyl carboxylic acids such as octadecenoic acid, octadecadienoic acid, and octadecatrienoic acid; (4) aromatic carboxylic acids such as benzoic acid; and (5) hydroxycarboxylic acids such as ricinoleic acid.

[0052] The alkylene oxide used as a raw material for forming the (poly)oxyalkylene structure of the nonionic surfactant is preferably an alkylene oxide having 2 to 4 carbon atoms. Specific examples of alkylene oxide include EO, propylene oxide (hereinafter also referred to as PO), and butylene oxide (hereinafter also referred to as BO). The number of moles of alkylene oxide added is appropriately set, but is preferably 0.1 to 250 moles, more preferably 1 to 200 moles, and even more preferably 2 to 150 moles. Any combination of the above upper and lower limits is also possible. The number of moles of alkylene oxide added refers to the number of moles of alkylene oxide per mole of the compound to be added in the raw material. One type of alkylene oxide may be used alone, or two or more types of alkylene oxides may be used in appropriate combination. When two or more types of alkylene oxides are used, the addition form thereof may be any of block addition, random addition, and a combination of block addition and random addition, and is not particularly limited.

[0053] Specific examples of polyhydric alcohols used as raw materials for nonionic surfactants include 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, diglycerin, 2-methyl-2-hydroxymethyl-1,3-propanediol, trimethylolpropane, sorbitan, pentaerythritol, and sorbitol.

[0054] The nonionic surfactants may be used alone or in combination of two or more. (ionic surfactants) Examples of ionic surfactants include anionic surfactants, cationic surfactants, and amphoteric surfactants.

[0055] As the anionic surfactant, known surfactants can be appropriately used. Specific examples of anionic surfactants include (1) phosphate salts of fatty alcohols, such as lauryl phosphate salts, cetyl phosphate salts, octyl phosphate salts, oleyl phosphate salts, and stearyl phosphate salts; (2) phosphate salts of fatty alcohols to which at least one alkylene oxide selected from ethylene oxide and propylene oxide has been added, such as polyoxyethylene lauryl ether phosphate salts, polyoxyethylene oleyl ether phosphate salts, and polyoxyethylene stearyl ether phosphate salts; (3) aliphatic sulfonates or aromatic sulfonates, such as lauryl sulfonate, myristyl sulfonate, cetyl sulfonate, oleyl sulfonate, stearyl sulfonate, tetradecane sulfonate, dodecylbenzene sulfonate, secondary alkyl sulfonate (C13 to C15), secondary alkyl sulfonate (C11 to C14), and α-olefin sulfonate; and (4) lauryl sulfate salts, oleyl sulfate salts, stearyl sulfonate salts, and the like. (5) sulfates of fatty alcohols to which at least one alkylene oxide selected from ethylene oxide and propylene oxide has been added, such as polyoxyethylene lauryl ether sulfate, polyoxyalkylene (polyoxyethylene, polyoxypropylene) lauryl ether sulfate, and polyoxyethylene oleyl ether sulfate; (6) sulfates of castor oil fatty acid sulfate, sesame oil fatty acid sulfate, and thiamin sulfate; (7) sulfates of fats and oils such as castor oil sulfate, sesame oil sulfate, tall oil sulfate, soybean oil sulfate, rapeseed oil sulfate, and palm oil sulfate; (8) fatty acid salts such as laurate, oleate, and stearate; (9) sulfosuccinate salts of fatty alcohols such as dioctyl sulfosuccinate;(10) Carboxylic acid ester salts of an aliphatic alcohol to which at least one alkylene oxide selected from ethylene oxide and propylene oxide has been added. Examples of counter ions of anionic surfactants include alkali metal salts such as potassium salts and sodium salts, ammonium salts, and alkanolamine salts such as triethanolamine.

[0056] As the cationic surfactant, known ones can be appropriately used, and specific examples of the cationic surfactant include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, and didecyl dimethyl ammonium chloride.

[0057] As the amphoteric surfactant, known surfactants can be appropriately used, and specific examples of amphoteric surfactants include betaine-type amphoteric surfactants. These ionic surfactants may be used alone or in combination of two or more.

[0058] In the treatment agent, the content of the other component (D) is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 6% by mass or less. The content of the other component (D) may be 0% by mass.

[0059] <Actions and Effects of the First Embodiment> The (1-1) treatment agent contains the amide compound (A) represented by the above formula (1) and the above base (B). Therefore, it is possible to improve the metal friction properties of the elastic fiber to which the treatment agent for elastic fibers is attached. It is also possible to improve the formulation stability of the treatment agent for elastic fibers.

[0060] (1-2) R in the above formula (1) 1 is a hydrocarbon group having a carbon number of 11 or more and 23 or less. Therefore, the metal friction properties of the elastic fiber to which the treatment agent is attached can be further improved. (1-3) R in the above formula (1) 2 , and R 3 is a substituent represented by the above formula (2), and A 1 O is an ethyleneoxy group and n is 1. Therefore, the formulation stability of the treatment agent can be further improved.

[0061] (1-4) The treatment agent contains 0.01% by mass or more and 5% by mass or less of the amide compound (A) and 70% by mass or more and 99.99% by mass or less of the base (B). When the content ratios of the amide compound (A) and the base (B) are within the above numerical ranges, the formulation stability of the treatment agent can be further improved.

[0062] The treatment agent (1-5) contains a modified silicone (C), which can further improve the metal friction properties of the elastic fiber to which the treatment agent is attached. Second Embodiment Next, a second embodiment of the elastic fiber according to the present invention will be described. The elastic fiber of this embodiment is an elastic fiber to which the treatment agent of the first embodiment is attached. There are no particular restrictions on the amount of the treatment agent of the first embodiment (not including the solvent) attached to the elastic fiber, but from the perspective of further improving the effects of the present invention, it is preferable that the amount attached be 0.1% by mass or more and 10% by mass or less.

[0063] The elastic fiber is not particularly limited, but examples thereof include polyester-based elastic fiber, polyamide-based elastic fiber, polyolefin-based elastic fiber, polyurethane-based elastic fiber, etc. Among these, polyurethane-based elastic fiber is preferred, and among these, polyurethane-based elastic fiber spun by a dry spinning method is more preferred. In such a case, the effects of the present invention can be more effectively exhibited.

[0064] Here, elastic fiber means a fiber that is highly elastic and can be stretched when a tensile stress is applied, and returns to its original length when the tensile stress is released. Elastic fiber can also be called an elastomeric fiber.

[0065] The method for producing elastic fibers of this embodiment is obtained by oiling the elastic fibers with the treatment agent of the first embodiment during the spinning process. The oiling method for the treatment agent is preferably a neat oiling method in which the agent is applied to the elastic fibers during the spinning process without dilution. Known methods for application, such as roller oiling, guide oiling, and spray oiling, can be used.

[0066] The method for producing the elastic fiber itself used in this embodiment is not particularly limited, and it can be produced by a known method, such as wet spinning, melt spinning, or dry spinning. The take-up speed of the elastic fiber in the spinning step is not particularly limited, but is preferably 500 / min or higher, and more preferably 1000 m / min or higher and 10000 m / min or lower.

[0067] <Actions and Effects of the Second Embodiment> (2-1) The treatment agent of the first embodiment is adhered to the elastic fiber. Therefore, the frictional properties of the elastic fiber against metal can be improved. Improving the frictional properties of the elastic fiber against metal can reduce the friction between the elastic fiber and a metal member such as a roller, thereby improving the uniformity of the warped yarn obtained through a processing step of the elastic fiber, for example, a warping step. [Example]

[0068] Examples will be given below to more specifically illustrate the configuration and effects of the present invention, but the present invention is not limited to these examples. In the following examples and comparative examples, % means % by mass.

[0069] Test Section 1 (Preparation of Amide Compound (A)) (Amide compound (A-1)) As shown in Table 1, R 1 Heptadecenyl acid having a heptadecenyl group as a constituent component, and R 2 , R 3A secondary amine containing an ethyleneoxy group as a constituent was prepared as a carboxylic acid. Both compounds were added to a reaction vessel, and a dehydration condensation reaction was carried out at 160°C under a nitrogen stream to obtain an amide compound (A-1).

[0070] (Preparation of Amide Compounds (A-2) to (A-9)) R 1 a carboxylic acid having a group as set forth in Table 1 as R 2 , R 3 Amines having the groups shown in Table 1 were prepared and subjected to a dehydration condensation reaction in the same manner as for the amide compound (A-1), thereby obtaining amide compounds (A-2) to (A-9).

[0071] [Table 1]

[0072] Test Category 2 (Preparation of Treatment Agent) Example 1 As shown in Table 2, the treatment agent of Example 1 was prepared by mixing the following components so that the total was 100 mass %: amide compound (A) 1% (amide compound (A-1); base (B) 85% (dimethyl silicone (B1-1), 10% (hydrocarbon oil (B2-3), and 2% (modified silicone (C-1)); and other components (D) 0.5% (isostearyl phosphate ester potassium salt (D-1) and 1.5% (2-hexyl-1-decanol) (D-5).

[0073] (Examples 2-2 0 ,25~2 7 ,Comparative Examples 1 to 5,Reference Example 21~ twenty four ,28 ) Examples 2-2 0 ,25~2 7 ,Comparative Examples 1 to 5,Reference Example 21~ twenty four ,28 The treatment agent of Example 2 was prepared in the same manner as the treatment agent of Example 1, so as to contain the amide compound (A), base (B), modified silicone (C), and other component (D) in the proportions shown in Tables 2 and 3.

[0074] The type and content of amide compound (A), the type and content of base (B), the type and content of modified silicone (C), and the type and content of other component (D) are shown in the "Amide compound (A)" column, the "Base (B)" column, the "Modified silicone (C)" column, and the "Other component (D)" column in Tables 2 and 3, respectively.

[0075] [Table 2]

[0076] [Table 3]

[0077] Details of the base (B), modified silicone (C), and other components (D) shown in Tables 2 and 3 are as follows: <Base (B)> B1-1: Kinematic viscosity at 25°C is 5mm 2 / s dimethyl silicone B1-2: Kinematic viscosity at 25°C is 10mm 2 / s dimethyl silicone B1-3: Kinematic viscosity at 25°C is 100mm 2 / s dimethyl silicone B2-1: Diana Fresia W-8 (Idemitsu Kosan Co., Ltd.) B2-2: Cosmo Pure Spin RC (Cosmo Oil Lubricants Co., Ltd.) B2-3: Ultra-S3 (manufactured by S-OIL Corporation) and Diana Fresia W-32 (manufactured by Idemitsu Kosan Co., Ltd.) mixed in a mass ratio of 4:1 B3-1: Butyl stearate B3-2: Octyl stearate B3-3: Octyl palmitate <Modified Silicone (C)> C-1: Kinematic viscosity at 25°C is 60mm 2 / s amino-modified silicone C-2: Kinematic viscosity at 25 ° C is 450 mm2 / s amino-modified silicone C-3: Kinematic viscosity at 25°C is 1000mm 2 / s polyether-modified silicone C-4: Kinematic viscosity at 25°C is 2200mm 2 / s polyether-modified silicone C-5: Kinematic viscosity at 25°C is 2500mm 2 / s carboxyl-modified silicone C-6: Kinematic viscosity at 25°C is 50mm 2 / s carbinol-modified silicone C-7: Kinematic viscosity at 25°C is 50mm 2 / s silanol-modified silicone C-8: Kinematic viscosity at 25°C is 100mm 2 / s ester-modified silicone <Other ingredients (D)> D-1: Potassium isostearyl phosphate ester D-2: Isostearyl phosphate ester triethanolamine salt D-3: Oleic acid D-4: Magnesium isostearate D-5: 2-hexyl-1-decanol D-6: Di(2-ethylhexyl) sulfosuccinic acid sodium salt D-7: A compound in which 4 moles of ethylene oxide are added to 1 mole of tridecanol. D-8: Diethyl sulfate quaternary salt of isostearic acid dimethylaminopropylamide Test Category 3 (Evaluation of formulation stability of treatment agent) Each treatment was left to stand at 40°C and 65% humidity for one day, and then compared with the appearance immediately after preparation to evaluate stability according to the following criteria. The results are shown in the "Formulation stability" column in Tables 2 and 3.

[0078] -Evaluation criteria for formulation stability 4 (Excellent): No change in appearance, can be used without problems. 3 (Good): A small amount of precipitation occurs, but the product is restored by stirring and can be used without any problems.

[0079] 2 (Acceptable): Precipitation occurs, but it can be restored by stirring and can be used without any problems. 1 (Not acceptable): Precipitation occurs and does not return to normal even after stirring, which is likely to cause practical problems. Test Category 4 (Evaluation of metal friction properties of elastic fibers with treatment agents attached) A prepolymer obtained from polytetramethylene glycol (MW 2000) and diphenylmethane diisocyanate was chain-extended with ethylenediamine in a dimethylformamide solution to obtain a 30% spinning dope. This spinning dope was dry-spun from a spinneret in a heated gas stream. Then, neat oil was applied to the dry-spun polyurethane elastic fiber by roller oiling using an oiling roller located between the stretching rollers before winding.

[0080] The roller-oiled elastic fiber was wound onto a 58 mm long cylindrical paper tube at a winding speed of 600 m / min via a traverse guide that provided a winding width of 38 mm using a surface drive winder. This resulted in a 500 g package of 40 denier dry-spun polyurethane elastic fiber. The amount of treatment agent applied was adjusted to 4.5% in all cases by adjusting the rotation speed of the oiling roller.

[0081] Friction was evaluated using a friction measurement meter (Eiko Sokki Co., Ltd., Sample Friction Unit Model TB-1). A chrome-plated, matte-finish pin with a diameter of 1 cm and a surface roughness of 2S was placed between two free rollers. The polyurethane elastic fiber drawn from the package was passed through the chrome-plated, matte-finish pin so that the contact angle between the fiber and the pin was 90°. Under conditions of 25°C and 60% RH, an initial tension (T1) of 5 g was applied to the inlet side, and the fiber was run at a speed of 100 m / min. The secondary tension (T2) on the outlet side was measured. The coefficient of friction was calculated using the following formula and evaluated according to the following criteria. The results are shown in the "Friction to Metal" column in Tables 2 and 3.

[0082] Friction coefficient = (2 / 3.14) × ln(T2 / T1) Friction evaluation criteria 4 (Excellent): Friction coefficient is 0.160 or more and less than 0.200 3 (Good): Friction coefficient is 0.200 or more and less than 0.240 2 (Acceptable): Friction coefficient is 0.240 or more and less than 0.280 1 (Not acceptable): Friction coefficient is 0.280 or more As shown in Tables 2 and 3, the treatment agents of Comparative Examples 1 and 2 did not contain the amide compound (A), and it was confirmed that they had poor formulation stability.

[0083] The treatment agent of Comparative Example 3 contained only hydrocarbon oil (B2) as the base (B), and it was confirmed that it had poor metal friction properties. The treatment agent of Comparative Example 4 contained only dimethyl silicone (B1) as the base (B), and it was confirmed that the formulation stability was poor.

[0084] The treatment agent of Comparative Example 5 contained only the ester compound (B3) as the base (B), and it was confirmed that it had poor metal friction properties. On the other hand, the treatment agent of the present invention can improve the metal friction property of the elastic fiber to which the treatment agent is attached, and can also improve the formulation stability of the treatment agent.

[0085] Next, the technical ideas that can be understood from the above-described embodiment and other examples will be described below. The treating agent for elastic fibers of Aspect 1 is characterized by containing an amide compound (A) represented by the following formula (1) and a base (B) described below.

[0086] [ka]

[0087] (In formula (1), R 1 : A hydrogen atom or a hydrocarbon group having 1 to 23 carbon atoms. R 2 ,R 3 :R 2 , and R 3 At least one of the above is a hydrocarbon group having 1 to 24 carbon atoms, or a substituent represented by the following formula (2):

[0088]

change

[0089] (In formula (2), A 1 O: an alkyleneoxy group having 2 to 4 carbon atoms. (However, when a plurality of alkyleneoxy groups are present, they may be one type alone or two or more types.) n: An integer between 1 and 5. Base (B): At least two selected from a dimethyl silicone compound (B1), a hydrocarbon oil (B2), and an ester compound (B3).

[0090] Aspect 2 is the treatment agent for elastic fibers according to Aspect 1, wherein R 1 is a hydrocarbon group having 11 to 23 carbon atoms. Aspect 3 is the treatment agent for elastic fibers according to Aspect 1 or 2, wherein R 2 , and R 3 is a substituent represented by the formula (2), and 1 O is an ethyleneoxy group and n is 1.

[0091] Aspect 4 is the treatment agent for elastic fibers according to any one of Aspects 1 to 3, wherein the treatment agent for elastic fibers contains the amide compound (A) in an amount of 0.01% by mass or more and 5% by mass or less, and the base (B) in an amount of 70% by mass or more and 99.99% by mass or less.

[0092] A fifth aspect is the treating agent for elastic fibers according to any one of the first to fourth aspects, further comprising a modified silicone (C). Aspect 6 is the treatment agent for elastic fibers of Aspect 5, wherein the treatment agent for elastic fibers contains the amide compound (A) in an amount of 0.01% by mass or more and 5% by mass or less, the base (B) in an amount of 70% by mass or more and 99.89% by mass or less, and the modified silicone (C) in an amount of 0.1% by mass or more and 10% by mass or less.

[0093] The elastic fiber of the seventh aspect is characterized in that the treating agent for elastic fibers according to any one of the first to sixth aspects is adhered to the elastic fiber.

Claims

1. The composition contains an amide compound (A) represented by the following formula (1), a base (B) represented by the following formula (1), and further contains a modified silicone (C), The treatment agent for elastic fibers is characterized by containing the amide compound (A) in an amount of 0.01% by mass or more and 5% by mass or less, the base (B) in an amount of 70% by mass or more and 99.89% by mass or less, and the modified silicone (C) in an amount of 0.1% by mass or more and 10% by mass or less. 【Chemical 1】 (In formula (1), R １ : A hydrocarbon group having 1 to 23 carbon atoms. R ２ , R ３ :R ２ , and R ３ represents a hydrocarbon group having 1 to 24 carbon atoms, or a substituent represented by the following formula (2): 【Chemistry 2】 (In formula (2), A １ O: an alkyleneoxy group having 2 to 4 carbon atoms (however, when a plurality of alkyleneoxy groups are present, one type may be used alone, or two or more types may be used). n: an integer between 1 and 5. Base (B): At least two selected from a dimethyl silicone compound (B1), a hydrocarbon oil (B2), and an ester compound (B3), wherein the ester compound (B3) is an ester compound of an aliphatic monoalcohol and an aliphatic monocarboxylic acid.

2. R in the formula (1) １ 2. The agent for treating elastic fibers according to claim 1, wherein is a hydrocarbon group having 11 to 23 carbon atoms.

3. R in the formula (1) ２ , and R ３ is a substituent represented by the formula (2), and １ 2. The agent for treating elastic fibers according to claim 1, wherein O is an ethyleneoxy group and n is 1.

4. An elastic fiber having the treating agent for elastic fibers according to any one of claims 1 to 3 attached thereto.

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