JP2013007141A - Treating agent for synthetic fiber and use thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treating agent for synthetic fiber that can reduce problems such as generation of static electricity due to poor antistaticity, fluff and yarn breakage generated by poor scratch characteristic and poor rubbing characteristic with a guide or a roller, and poor dyeability, in producing a synthetic fiber filament yarn on which a treating agent is attached, and/or in producing a fiber structure including the synthetic fiber filament yarn.SOLUTION: A treating agent for synthetic fiber essentially includes: an organic zinc compound (A) represented by the general formula (1); and at least one base component (B) selected from ester compounds having no polyoxyalkylene group, polyether compounds, and mineral oils, in which the weight ratio of the organic zinc compound (A) in nonvolatile contents of the treating agent is 0.5-6 wt.%.

Description

  The present invention relates to a treatment agent for synthetic fibers and use thereof. More specifically, the present invention relates to a synthetic fiber treatment agent having excellent antistatic properties and rubbing characteristics, a synthetic fiber filament yarn provided with the treatment agent, and a fiber structure including the yarn.

  The synthetic fiber can be obtained by applying a treatment agent in the spinning process and then heating and drawing. The obtained synthetic fiber is processed into a fiber structure such as woven fabric or knitted fabric. In the process of producing synthetic fiber filament yarns, there are problems such as generation of static electricity and fluff and yarn breakage due to rubbing with guides and rollers. Moreover, in the process of processing the obtained synthetic fiber filament yarn, in addition to the problem of static electricity generation and the problem of fuzz and yarn due to rubbing with a guide or a roller, problems such as poor dyeability occur. Conventionally, in order to prevent these problems, alkyl phosphate salts and alkyl sulfonate salts are added to the treatment agent to suppress the generation of static electricity, or high molecular weight surfactants are added to strengthen the oil film, and rubbing. The characteristics were improved. However, in recent years, production of synthetic fiber filament yarns and production of fiber structures using them have become more difficult due to higher production speed, higher processing speed, fine denier of single yarn filaments and irregular cross section. However, the treatment agents that have been used in the past have been unable to provide sufficient response.

  Conventionally, synthetic fiber treatment agents that suppress the generation of static electricity, fuzz and yarn breakage of synthetic fibers include: 1) Synthetic fiber treatment agents containing a high molecular weight amide compound having a molecular weight of 2000 to 20000 (Patent Documents) 1) 2) Treatment agent for synthetic fibers containing a polyether compound having a molecular weight of 1000 to 20000 obtained by randomly or block-adding a C2-C4 alkylene oxide to a dialkylamine (Patent Document 2), 3) Ethylene oxide / Polypropylene oxide copolymerized at a ratio of 40/60 to 20/80 (weight ratio), polyoxyalkylene glycol having a molecular weight of 5000 to 7000, monocarboxylic acid having 8 to 14 carbon atoms, and alkylamine having 6 to 14 carbon atoms And a synthetic fiber treating agent containing a salt or a quaternary ammonium salt (Patent Document 3). That.

  However, the synthetic fiber treatment agents described in Patent Document 1 and Patent Document 2 inevitably increase the dynamic friction of the yarn, and in recent years, production speeds and processing conditions that are further increased, it is possible to suppress fluff and yarn breakage. Is insufficient. Furthermore, the treatment agent for synthetic fibers described in Patent Document 3 cannot sufficiently suppress the generation of static electricity.

Japanese Patent Laid-Open No. 62-162078 Japanese Patent Laid-Open No. 6-228885 Japanese Patent Laid-Open No. 10-245729

  The present invention, when producing a synthetic fiber filament yarn provided with a treatment agent and / or when producing a fiber structure containing the synthetic fiber filament yarn, generation of static electricity due to poor antistaticity, A synthetic fiber treatment agent that reduces problems such as fuzz, yarn breakage, and poor dyeability caused by inferior rubbing characteristics with guides and rollers, a synthetic fiber filament yarn provided with the treatment agent, and the yarn It aims at providing the fiber structure containing.

  As a result of intensive studies to achieve the above object, the present inventors have found that a treatment agent for synthetic fibers containing a specific amount of a specific organozinc compound can generate static electricity, fluff, yarn breakage, and dyeability. The present inventors have found that the above-mentioned problems such as defects can be reduced and have reached the present invention.

  That is, the synthetic fiber treating agent of the present invention is at least selected from the organic zinc compound (A) represented by the general formula (1), an ester compound having no (poly) oxyalkylene group, a polyether compound, and a mineral oil. 1 type of base component (B) is contained essential, and the weight ratio of this organic zinc compound (A) to the non volatile matter of a processing agent is 0.5 to 6 weight%.

（式中、Ｒ^１〜Ｒ^４は、それぞれ独立して、炭化水素基を示す。）

(In the formula, R ^{1 to} R ⁴ each independently represent a hydrocarbon group.)

  It is preferable that the weight ratio of the base component (B) in the nonvolatile content of the treatment agent is 30 to 98% by weight.

  The treating agent for synthetic fibers of the present invention further comprises a polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester, an ester obtained by blocking at least one hydroxyl group of the polyhydric alcohol ester with a fatty acid, the polyhydric alcohol ester and dicarboxylic acid, And at least one component (C) selected from esters obtained by blocking at least one hydroxyl group of the condensate with a fatty acid, and the weight ratio of the component (C) in the nonvolatile content of the treatment agent is 1 to It is preferably 30% by weight. Moreover, it is preferable that the weight average molecular weights of polyoxyalkylene group containing hydroxy fatty acid polyhydric alcohol ester are 1000-8000.

  The synthetic fiber is preferably a polyester fiber, a polyamide fiber or a polyolefin fiber.

  The synthetic fiber filament yarn of the present invention is obtained by adding the above-mentioned synthetic fiber treating agent to the raw material synthetic fiber filament yarn. The fiber structure of the present invention includes the above synthetic fiber filament yarn.

The synthetic fiber treatment agent of the present invention has antistatic properties when producing a synthetic fiber filament yarn provided with the treatment agent and / or when producing a fiber structure containing the synthetic fiber filament yarn. Problems such as generation of static electricity due to inferiority, rubbing with guides and rollers and rubbing characteristics resulting in inferior fluff and yarn breakage, and poor dyeability can be reduced.
The synthetic fiber filament yarn of the present invention can reduce problems such as generation of static electricity, fluff and yarn breakage, and poor dyeability when a fiber structure including the synthetic fiber filament yarn is produced. The fiber structure of the present invention can be produced with reduced generation of static electricity, and has reduced fluff, yarn breakage, and poor dyeability.

It is the schematic of the measuring apparatus of a rubbing characteristic.

  The present invention is a treating agent for synthetic fibers which essentially contains a specific organozinc compound (A) and a base component (B) and contains a specific amount of the organozinc compound (A). This will be described in detail below.

(Organic zinc compound (A))
The organozinc compound (A) is an essential component of the synthetic fiber treating agent of the present invention, and is a compound represented by the above general formula (1). By containing the organic zinc compound (A) as an essential component in the treatment agent, the generation of static electricity, fluff and yarn breakage, and poor dyeing when producing synthetic fiber filament yarns and fiber structures are reduced. Can do. One or more organic zinc compounds (A) may be used.

In the general formula (1), R ^{1 to} R ⁴ each independently represent a hydrocarbon group. R ^{1 to} R ⁴ are monovalent hydrocarbon groups, and examples thereof include an alkyl group, an alkenyl group, an aryl group, an aralkyl group, and a cycloalkyl group. Among these, an alkyl group and an alkenyl group are preferable from the viewpoint of smoothness, and an alkyl group is more preferable.
The alkyl group and alkenyl group may be branched or linear. As carbon number of an alkyl group and an alkenyl group, 3-18 are preferable, 3-12 are more preferable, 4-10 are more preferable, and 4-8 are especially preferable. When carbon number is less than 3, the compatibility of the organozinc compound (A) with respect to a processing agent may worsen. On the other hand, when the number of carbon atoms exceeds 18, antistatic properties and rubbing characteristics may be insufficient.
As the alkyl group, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, isopentyl group, hexyl group, heptyl group, octyl group, decyl group , Dodecyl group, pentadecyl group, octadecyl group and the like.
Examples of the alkenyl group include vinyl group, 1-propenyl group, 2-propenyl group, isopropenyl group, 1-butenyl group, 2-butenyl group, 3-butenyl group, 1-octenyl group, 1-decenyl group and 1-octadecenyl group. Groups and the like.

When R ^{1 to} R ⁴ are an aryl group or an aralkyl group, the following range is preferable as the carbon number of each group. As carbon number of an aryl group, 6-22 are preferable, 6-16 are more preferable, and 6-10 are more preferable. Examples of such an aryl group include a phenyl group, a biphenyl group, a naphthyl group, an anthryl group, a phenanthryl group, a tolyl group, and a xylyl group. As carbon number of an aralkyl group, 7-22 are preferable, 7-16 are more preferable, and 6-10 are more preferable. Examples of such an aralkyl group include a benzyl group, a phenylethyl group, a methylbenzyl group, and a naphthylmethyl group.
In addition, the said aryl group and aralkyl group may have a substituent, and carbon number of a substituent is 1-30 normally, Preferably it is 2-26, More preferably, it is 3-24. Such substituents include methyl, ethyl, t-butyl, octyl, nonyl, lauryl, decyl, tridecyl, isotridecyl, cetyl, stearyl, oleyl, behenyl, styryl. Groups and the like. The number of such substituents may be one or plural, and in the case of plural, plural kinds of substituents may be mixed.

  Examples of the cycloalkyl group include cycloalkyl groups having 3 to 18 carbon atoms such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, and a cyclooctadecyl group.

  As the organozinc compound (A) represented by the general formula (1), a commercially available one can be used, and it can also be produced by a known method.

(Base component (B))
The treating agent for synthetic fibers of the present invention comprises at least one base component (B) selected from an ester compound (B1) having no (poly) oxyalkylene group, a polyether compound (B2), and a mineral oil (B3). Essentially contained. The base component (B) is a component that exhibits basic heat resistance and smoothness of the treating agent.

The ester compound (B1) having no (poly) oxyalkylene group is a (poly) oxyalkylene group such as a (poly) oxyethylene group, a (poly) oxypropylene group, or a (poly) oxybutylene group in the molecule of the ester compound. It does not have.
As the ester compound (B1), a monovalent ester (B1-1) of a monohydric alcohol and a monovalent carboxylic acid, a polyvalent ester (B1-2) of a polyhydric alcohol and a monovalent carboxylic acid, a monohydric alcohol, And a polyvalent ester (B1-3) with a polyvalent carboxylic acid. The ester compound (B1) may be used alone or in combination of two or more.

Examples of the monohydric alcohol constituting the monovalent ester (B1-1) include aliphatic monohydric alcohols and aromatic monohydric alcohols. A monohydric alcohol may use together 1 type, or 2 or more types.
The aliphatic monohydric alcohol is not particularly limited and may be saturated or unsaturated. 8-24 are preferable, as for carbon number of aliphatic monohydric alcohol, 14-24 are more preferable, and 18-22 are more preferable. As the aliphatic monohydric alcohol, a saturated aliphatic monohydric alcohol and an unsaturated aliphatic monohydric alcohol may be used in combination.

Examples of the aliphatic monohydric alcohol include octyl alcohol, isooctyl alcohol, lauryl alcohol, myristyl alcohol, myristol alcohol, cetyl alcohol, isocetyl alcohol, palmitoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, Bacenyl alcohol, gadreyl alcohol, argidinyl alcohol, isoiconanyl alcohol, eicosenoyl alcohol, behenyl alcohol, isodocosanyl alcohol, ercanyl alcohol, lignocerinyl alcohol, isotetradocosanyl alcohol, nerbonyl alcohol, Examples include serotonyl alcohol, montanyl alcohol, and melinyl alcohol.
Examples of the aromatic alcohol monohydric alcohol include phenol and alkylbenzene alcohol.

Examples of the monovalent carboxylic acid constituting the monovalent ester (B1-1) include a monovalent aliphatic carboxylic acid (fatty acid) and a monovalent aromatic carboxylic acid. The monovalent carboxylic acid may be used alone or in combination of two or more.
The fatty acid is not particularly limited, and may be saturated or unsaturated. 8-24 are preferable, as for carbon number of a fatty acid, 14-24 are more preferable, and 18-22 are more preferable. As the fatty acid, a saturated fatty acid and an unsaturated fatty acid may be used in combination.

Fatty acids include butyric acid, crotonic acid, valeric acid, caproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, lauric acid, myristic acid, myristoleic acid, pentadecylic acid, palmitic acid, palmitoleic acid, isocetylic acid, margarine Acid, stearic acid, isostearic acid, oleic acid, elaidic acid, vaccenic acid, linoleic acid, linolenic acid, tuberculostearic acid, arachidic acid, isoicosanoic acid, gadoleic acid, eicosenoic acid, behenic acid, isodocosanoic acid, erucic acid, lignoserine Examples include acids, isotetradocosanoic acid, nervonic acid, serotic acid, montanic acid, melicic acid and the like.
Examples of the monovalent aromatic carboxylic acid include benzoic acid, toluic acid, naphthoic acid, salicylic acid, gallic acid, and cinnamic acid.

  Examples of the monovalent ester (B1-1) include methyl oleate, butyl stearate, isooctyl palmitate, isooctyl stearate, isooctyl oleate, isooctyl palmitate, lauryl oleate, isotridecyl stearate. Hexadecyl stearate, isostearyl oleate, oleyl laurate, oleyl oleate and the like.

The polyhydric alcohol constituting the polyvalent ester (B1-2) is not particularly limited as long as it is a dihydric or higher alcohol. Examples of the polyhydric alcohol include aliphatic polyhydric alcohols and aromatic polyhydric alcohols. Polyhydric alcohols may be used alone or in combination of two or more.
Examples of the aliphatic polyhydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 1,2-butanediol, 1,3-butanediol, 1,4- Butanediol, 2-methyl-1,3-propanediol, 1,5-pentanediol, 1,6-hexanediol, neopentyl glycol, cyclohexanediol, cyclohexanedimethanol, glycerin, trimethylolpropane, pentaerythritol, erythritol, Examples include diglycerin, sorbitan, sorbitol, ditrimethylolpropane, dipentaerythritol, triglycerin, tetraglycerin, and sucrose.
Examples of the aromatic polyhydric alcohol include bisphenol A, bisphenol Z, 1,3,5-trihydroxymethylbenzene and the like.

  Examples of the monovalent carboxylic acid constituting the polyvalent ester (B1-2) include the same as those described for the ester (B1-1).

  Examples of the polyvalent ester (B1-2) include diethylene glycol diolate, hexamethylene glycol diolate, neopentyl glycol dilaurate, trimethylolpropane trilaurate, trimethylolpropane tricaprylate, glycerin trioleate, pentaerythritol tetraoleate. Bisphenol A dilaurate thiodipropanol dilaurate, pentaerythritol C8 / C10 carboxylic acid mixed ester, 1,6-hexanediol diisostearate and the like.

  Examples of the monohydric alcohol constituting the polyvalent ester (B1-3) include the same ones as described for the ester (B1-1).

The polyvalent carboxylic acid constituting the polyvalent ester (B1-3) is not particularly limited as long as it is divalent or higher. Examples of the polyvalent carboxylic acid include aliphatic polyvalent carboxylic acids and aromatic polyvalent carboxylic acids. The polyvalent carboxylic acid may be used alone or in combination of two or more. The aliphatic polyvalent carboxylic acid used in the present invention does not include a sulfur-containing polyvalent carboxylic acid such as thiodipropionic acid.
Aliphatic polycarboxylic acids include citric acid, isocitric acid, malic acid, aconitic acid, oxaloacetic acid, oxalosuccinic acid, succinic acid, fumaric acid, maleic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelain An acid, sebacic acid, etc. are mentioned.
Examples of the aromatic polyvalent carboxylic acid include phthalic acid, isophthalic acid, terephthalic acid, mellitic acid, trimellitic acid and the like.

  Examples of the polyvalent ester (B1-3) include dioleyl malate, diisotridecyl adipate, dioleyl adipate, dioctyl sebacate, dioctyl azelate, dioctyl phthalate, trioctyl trimellitate, triisostearyl trimellitate Etc.

200-2600 are preferable, as for the weight average molecular weight of these ester compounds (B1), 400-2000 are more preferable, and 600-1500 are further more preferable.
There is no limitation in particular as a manufacturing method of said ester compound (B1), The well-known esterification method is employable.

  The polyether compound (B2) is a polyalkylene glycol obtained by addition polymerization of alkylene oxide (AO) such as ethylene oxide (EO) propylene oxide (PO) and butylene oxide (BO). Among them, propylene oxide (PO) and A polyalkylene glycol copolymer obtained by addition polymerization of ethylene oxide (EO) is preferred. The polyether compound (B2) may be used alone or in combination of two or more. The polyalkylene glycol copolymer is a random or block copolymer of PO and EO, and one or both ends of this copolymer are ether-bonded with monovalent or higher alcohols or basic acids. Or may be blocked through an ester bond. Such a polyalkylene glycol copolymer can be obtained by copolymerizing PO and EO by a known method.

The molar ratio of PO / EO of the polyether compound (B2) is preferably 20/80 to 90/10, and more preferably 25/75 to 90/10. When the PO / EO molar ratio is less than 20/80, the compatibility with the oil agent may deteriorate. On the other hand, when it exceeds 90/10, the convergence may be deteriorated.
1000-20000 are preferable, as for the weight average molecular weight of a polyether compound (B2), 1500-12000 are more preferable, and 1500-8000 are more preferable. When the weight average molecular weight is less than 200, the convergence may be deteriorated. On the other hand, when the weight average molecular weight exceeds 20000, the compatibility with the treatment agent is poor, the viscosity is too high, and the uniform adhesion of the treatment agent to the yarn may be poor. In addition, the weight average molecular weight in the present invention is a separation column KF-402HQ, KF- manufactured by Showa Denko KK using a high-speed gel permeation chromatography apparatus HLC-8220GPC manufactured by Tosoh Corporation and a sample concentration of 3 mg / cc. It was injected into 403HQ and calculated from the peak measured with a differential refractive index detector.

The mineral oil (B3) is not particularly limited, and examples thereof include machine oil, spindle oil, and liquid paraffin. Mineral oil may use together 1 type, or 2 or more types.
The viscosity (redwood viscosity, 25 ° C.) of the mineral oil is preferably 150 to 500 seconds, more preferably 150 to 300 seconds, from the viewpoint of heat resistance.

(Ingredient (C))
The treatment agent for synthetic fibers of the present invention comprises a polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester, an ester in which at least one hydroxyl group of the polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester is blocked with a fatty acid, the polyoxyalkylene It is preferable to contain at least one component (C) selected from a condensate of a group-containing hydroxy fatty acid polyhydric alcohol ester and a dicarboxylic acid and an ester obtained by blocking at least one hydroxyl group of the condensate with a fatty acid. By using such component (C) with the organozinc metal compound (A), the converging property of the filament yarn is improved, and the effect of preventing fluff and yarn breakage, particularly the yarn damage at high speed, is prevented. To be effective.

  A polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester (hereinafter sometimes referred to as a polyhydroxy ester) is structurally an ester of a polyoxyalkylene group-containing hydroxy fatty acid and a polyhydric alcohol. Of these, two or more (preferably all) hydroxyl groups are esterified. Therefore, the polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester is an ester having a plurality of hydroxyl groups.

The polyoxyalkylene group-containing hydroxy fatty acid has a structure in which a polyoxyalkylene group is bonded to a fatty acid hydrocarbon group via an oxygen atom, and one end that is not bonded to the fatty acid hydrocarbon group of the polyoxyalkylene group is It is a hydroxyl group.
Examples of the polyhydroxyester include an alkylene oxide adduct of an esterified product of a hydroxy fatty acid having 6 to 22 carbon atoms (preferably 12 to 22 carbon atoms) and a polyhydric alcohol.

  Examples of the hydroxy fatty acid having 6 to 22 carbon atoms include hydroxycaprylic acid, hydroxycapric acid, hydroxyundecanoic acid, hydroxylauric acid, hydroxystearic acid, and ricinoleic acid, and hydroxystearic acid and ricinoleic acid are preferable. Examples of the polyhydric alcohol include ethylene glycol, glycerin, sorbitol, sorbitan, trimethylolpropane, pentaerythritol and the like, and glycerin is preferable. Examples of the alkylene oxide include C2-C4 alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide.

The number of moles of alkylene oxide added is preferably 5 to 80, more preferably 5 to 30 per mole equivalent of hydroxyl group of the hydroxy fatty acid polyhydric alcohol ester. The proportion of ethylene oxide in the alkylene oxide is preferably 50 mol% or more, more preferably 80 mol% or more.
When two or more types of alkylene oxide are added, the order of addition is not particularly limited, and the addition form may be either a block form or a random form. The addition of the alkylene oxide can be performed by a known method, but it is generally performed in the presence of a basic catalyst.

The polyhydroxyester can be produced, for example, by esterifying a polyhydric alcohol and a hydroxy fatty acid (hydroxymonocarboxylic acid) under ordinary conditions to obtain an esterified product, and then subjecting the esterified product to an addition reaction with an alkylene oxide. The polyhydroxyester can be suitably produced also by using an oil and fat obtained from nature such as castor oil or a hardened castor oil obtained by adding hydrogen to this, and further subjecting it to an addition reaction with an alkylene oxide.
When manufacturing a polyhydroxyester, it is preferable that the carboxyl group molar equivalent of the hydroxy fatty acid per 1 molar equivalent of the hydroxyl group of a polyhydric alcohol is the range of 0.5-1.

  Component (C) also includes an ester in which at least one hydroxyl group of the above-mentioned polyhydroxyester is blocked with a fatty acid. 10-50 are preferable and, as for carbon number of the fatty acid to block, 12-18 are more preferable. The carbon number of the hydrocarbon group in the fatty acid may be distributed, the hydrocarbon group may be linear or branched, may be saturated or unsaturated, It may have a polycyclic structure. Examples of such fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, icosanoic acid, behenic acid, lignoceric acid, nervonic acid, serotic acid, montanic acid, melicic acid, lanolin fatty acid and the like. It is done. There is no limitation in particular about the method of esterification, reaction conditions, etc., A well-known method and normal conditions are employable.

  The component (C) also includes a condensate (hereinafter sometimes referred to as a condensate) of the polyhydroxy ester and the dicarboxylic acid. About carbon number of dicarboxylic acid, 2-10 are preferable and 2-8 are more preferable. Examples of such dicarboxylic acids include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, maleic acid, and phthalic acid. Along with the dicarboxylic acid, 20% or less (preferably 10% or less) of a carboxylic acid other than the dicarboxylic acid such as lauric acid, oleic acid, stearic acid, behenic acid and benzoic acid may be contained. When producing the condensate of polyhydroxyester and dicarboxylic acid, the carboxyl group molar equivalent of dicarboxylic acid per molar equivalent of hydroxyl group of polyhydroxyester is preferably in the range of 0.2 to 1, -0.8 is more preferable. There is no limitation in particular about the method of esterification, reaction conditions, etc., A well-known method and normal conditions are employable.

  The component (C) also includes an ester in which at least one hydroxyl group of the above-mentioned condensate is blocked with a fatty acid. Examples of the fatty acid include those similar to those described in “Ester in which at least one hydroxyl group of polyhydroxyester is blocked with fatty acid”.

  The weight average molecular weight of the component (C) is preferably 1000 to 8000. When the weight average molecular weight is less than 1000, the convergence of the yarn may be lowered, and the operability may be deteriorated. On the other hand, when the weight average molecular weight exceeds 8000, the dynamic friction of the yarn becomes high, which may cause fluff and yarn breakage.

  The addition amount of alkylene oxide in the component (C) is preferably 30 to 60% by weight. When it is less than 30% by weight, the convergence of the yarn may be lowered, and the operability may be deteriorated. On the other hand, when it exceeds 60% by weight, the compatibility of the treatment agent is deteriorated, and the function of the treatment agent may be lowered.

  Examples of the component (C) include hydrogenated castor oil ethylene oxide adduct, castor oil ethylene oxide adduct, hydrogenated castor oil ethylene oxide adduct trioleate, castor oil ethylene oxide adduct trioleate, hydrogenated castor oil ethylene oxide adduct tristeare. Ester, castor oil ethylene oxide adduct tristearate, hardened castor oil ethylene oxide adduct and maleic acid condensate, hardened castor oil ethylene oxide adduct and maleic acid condensate ester blocked with stearic acid Etc. Among these, in terms of heat resistance and compatibility of the treatment agent, hydrogenated castor oil ethylene oxide adduct, hydrogenated castor oil ethylene oxide adduct trioleate, hydrogenated castor oil ethylene oxide adduct tristearate, hydrogenated castor oil ethylene oxide addition An ester in which the hydroxyl group of the condensate of the product with maleic acid is blocked with stearic acid is preferred.

(Processing agent for synthetic fibers)
The synthetic fiber treating agent of the present invention essentially contains the aforementioned organic zinc compound (A) and the base component (B), and contains a specific amount of the organic zinc compound (A). The weight ratio of the organozinc compound (A) in the nonvolatile content of the treatment agent is 0.5 to 6% by weight, preferably 0.5 to 5% by weight, and more preferably 1.0 to 4.5% by weight. 1.5 to 4% by weight is more preferable. When the weight ratio of the organozinc compound (A) is less than 0.5% by weight, the antistatic property and rubbing characteristics become insufficient, and when the yarn-making speed and post-processing speed are increased, The occurrence of poor dyeing increases. On the other hand, if it exceeds 6% by weight, the dynamic friction of the yarn becomes high, causing fluff and yarn breakage.
The non-volatile content in the present invention refers to an absolutely dry component when the treatment agent is heat treated at 105 ° C. to remove the solvent and the like and reach a constant weight.

  The weight ratio of the base component (B) in the non-volatile content of the treating agent is preferably 30 to 98% by weight, more preferably 35 to 95% by weight, further preferably 40 to 90% by weight, particularly 45 to 85% by weight. preferable. When the base component (B) contains the ester compound (B1), the weight ratio of the ester compound (B1) in the nonvolatile content of the treating agent is preferably 30 to 80% by weight, more preferably 35 to 75% by weight, More preferred is ˜60% by weight. When the base component (B) includes the polyether compound (B2), the weight ratio of the polyether compound (B2) in the nonvolatile content of the treatment agent is preferably 30 to 98% by weight, more preferably 35 to 95% by weight, It is more preferably 40 to 90% by weight, and particularly preferably 45 to 85% by weight. When the base component (B) contains mineral oil (B3), the weight ratio of the mineral oil (B3) in the nonvolatile content of the treatment agent is preferably 30 to 80% by weight, more preferably 35 to 75% by weight, More preferred is ˜60% by weight.

  When the component (C) is contained, the weight ratio of the component (C) in the nonvolatile content of the treatment agent is preferably 1 to 30% by weight, more preferably 5 to 25% by weight, and still more preferably 8 to 20% by weight. . When the weight ratio is less than 1% by weight, the converging property of the yarn may be lowered and the operability may be deteriorated. On the other hand, when it exceeds 30% by weight, the dynamic friction of the yarn increases, which may cause fluff and yarn breakage.

  The treatment agent for synthetic fibers of the present invention is for emulsification of the treatment agent, assisting adhesion to the fiber, washing the treatment agent from the fiber with water, antistatic property to the fiber, lubricity, imparting convergence, etc. Further, a surfactant may be contained. Surfactant may use together 1 type (s) or 2 or more types. Such surfactants include, for example, polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene nonyl phenyl ether, polyoxyethylene lauryl amino ether, polyethylene glycol monolaurate, polyethylene glycol dilaurate, polyethylene glycol mono Nonionic surfactants such as oleate, polyethylene glycol diolate, polyoxyethylene glyceryl monolaurate, polyoxyethylene sorbitan trioleate; metal salts of alkyl phosphates / or amine salts, metal salts of polyoxyethylene alkyl phosphates / or Anionic surfactants such as amine salts, alkane sulfonates, fatty acid soaps; alkylamine salts, alkylimidazolinium salts, Cationic surfactants such as grade ammonium salts; lauryl dimethyl betaine, an amphoteric surfactant such as stearyl dimethyl betaine. These surfactants may be used alone or in combination of two or more. The weight ratio of the surfactant to the non-volatile content of the treatment agent in the case of containing the surfactant is not particularly limited, but is preferably 0.1 to 50% by weight, and more preferably 0.1 to 30% by weight. In addition, a surfactant here means a thing with a weight average molecular weight of less than 1000.

  Moreover, the synthetic fiber treating agent of the present invention may contain a diester compound of thiodipropionic acid and an aliphatic alcohol or an aromatic ring-containing silicone compound. In addition, when a processing agent contains this diester compound, the above-mentioned ester compound (B1) shall exclude this diester compound.

  A diester compound of thiodipropionic acid and an aliphatic alcohol is a component having antioxidant ability. By using the diester compound, the heat resistance of the treatment agent can be increased. You may use 1 type, or 2 or more types. 400-1000 are preferable, as for the molecular weight of the thiodipropionic acid which comprises this diester compound, 500-900 are more preferable, and 600-800 are more preferable. The aliphatic alcohol constituting the diester compound may be saturated or unsaturated. The aliphatic alcohol may be linear or have a branched structure, but preferably has a branched structure. 8-24 are preferable, as for carbon number of an aliphatic alcohol, 12-24 are more preferable, and 16-24 are more preferable. Examples of the aliphatic alcohol include octyl alcohol, 2-ethylhexyl alcohol, decyl alcohol, lauryl alcohol, myristyl alcohol, isocetyl alcohol, oleyl alcohol, and isostearyl alcohol. Among these, oleyl alcohol and isostearyl alcohol are exemplified. preferable.

  When the treatment agent of the present invention contains the diester compound, the weight ratio of the diester compound in the nonvolatile content of the treatment agent is preferably 0.1 to 40% by weight, more preferably 1 to 15% by weight, 12% by weight is more preferred. If it exceeds 40% by weight, the occurrence of contamination on the surface of a heating body such as a heat roller may increase.

An aromatic ring-containing silicone compound is modified with a group having an aromatic ring such as a phenyl group or a naphthalene group at at least one of both ends, one end, side chain, and both side ends of a polysiloxane such as dimethylpolysiloxane. Refers to modified silicone. One or more aromatic ring-containing silicone compounds may be used.
As the aromatic ring-containing silicone compound, phenyl-modified dimethylpolysiloxane, diphenylpolysiloxane and the like are used. The viscosity (25 ° C.) is preferably 10 to 500 mm ² / s, more preferably from 20 to 200 mm ² / s, more preferably 50 to 100 mm ² / s. The molar ratio (M / P) of the methyl group (M) constituting the polysiloxane chain and the group (P) having an aromatic ring is preferably 10 or less, more preferably 5 or less, further preferably 2 or less, particularly preferably 0. preferable.

  When the treatment agent of the present invention contains the aromatic ring-containing silicone compound, the weight ratio of the silicone compound in the nonvolatile content of the treatment agent is preferably 0.1 to 5% by weight, and more preferably 1 to 3% by weight.

  Moreover, in order to provide heat resistance, the processing agent for synthetic fibers of this invention may contain antioxidant further. Examples of the antioxidant include known ones such as phenol, thio, and phosphite. One or two or more antioxidants may be used in combination. The weight ratio of the antioxidant to the non-volatile content of the treatment agent when it contains an antioxidant is not particularly limited, but is preferably 0.1 to 5% by weight, and more preferably 0.1 to 3% by weight.

  The treatment agent for synthetic fibers of the present invention may further contain a stock solution stabilizer (for example, water, ethylene glycol, propylene glycol). The proportion by weight of the stock solution stabilizer in the treatment agent is preferably 0.1 to 30% by weight, and more preferably 1 to 20% by weight.

  The treatment agent for synthetic fibers of the present invention may be composed of the above-mentioned components consisting only of a non-volatile content, may be composed of a non-volatile content and a stock solution stabilizer, and the non-volatile content is diluted with a low-viscosity mineral oil. It may be a water-based emulsion obtained by emulsifying nonvolatile components in water. When the treatment agent for synthetic fibers of the present invention is an aqueous emulsion obtained by emulsifying nonvolatile components in water, the concentration of nonvolatile components is preferably 5 to 30% by weight, and more preferably 6 to 20% by weight.

  There is no limitation in particular about the manufacturing method of the processing agent for synthetic fibers of this invention, A well-known method is employable. The synthetic fiber treating agent is produced by adding and mixing the constituent components described above in an arbitrary order.

(Synthetic fiber filament yarn)
The synthetic fiber filament yarn of the present invention is obtained by applying the synthetic fiber treating agent of the present invention to a raw material synthetic fiber filament yarn. The applied amount of the non-volatile content of the treating agent for synthetic fiber is preferably 0.2 to 4% by weight, more preferably 0.3 to 2% by weight, and 0.35 to 1.5% by weight with respect to the raw material filament yarn. % Is more preferable. When the amount is less than 0.2% by weight, the fiber cannot be sufficiently covered with the treatment agent, and fluff and yarn breakage may occur. On the other hand, when the content exceeds 4% by weight, scattering of the treatment agent in the treatment agent application step increases, which may deteriorate the working environment.
The method for applying the synthetic fiber treating agent of the present invention to the raw synthetic fiber filament yarn is not particularly limited, and a known method can be employed. Usually, it is given in the spinning process or drawing process of the raw synthetic fiber filament, and the raw synthetic fiber filament is treated with a non-volatile component, a non-volatile component diluted with low-viscosity mineral oil, or in water. Examples thereof include a method of applying an aqueous emulsion treating agent emulsified with a non-volatile content using an oiling roller, a guide oiling or the like.

  (Raw material) Synthetic fiber filament yarns include filament yarns of synthetic fibers such as polyester fibers, polyamide fibers, and polyolefin fibers. The treatment agent for synthetic fibers of the present invention is suitable for synthetic fibers such as polyester fibers, polyamide fibers, and polyolefin fibers. As the polyester fiber, polyester (PET) having ethylene terephthalate as a main constituent unit, polyester (PTT) having trimethylene ethylene terephthalate as a main constituent unit, polyester (PBT) having main constituent unit of butylene ethylene terephthalate, and lactic acid are mainly used. Examples thereof include polyester (PLA) as a structural unit, examples of polyamide fibers include nylon 6 and nylon 66, and examples of polyolefin fibers include polypropylene and the like. Further, it is also suitably used for super fibers such as aramid fibers, high-strength polyethylene fibers, and aromatic polyester fibers that have been developed in recent years. There is no limitation in particular as a manufacturing method of a synthetic fiber filament yarn, A well-known method is employable.

(Fiber structure)
The fiber structure of the present invention includes a synthetic fiber filament yarn provided with the synthetic fiber treating agent of the present invention. Specifically, a fabric woven by a water jet loom, an air jet loom, or a rapier loom using a synthetic fiber filament yarn provided with the synthetic fiber treatment agent of the present invention, and a circular knitting machine, a warp knitting machine, Or it is the knitted fabric knitted with the weft knitting machine. Examples of the use of the fiber structure include industrial materials such as tire cords, seat belts, airbags, fish nets, ropes, and clothing. There is no limitation in particular as a method of manufacturing a textile fabric and a knitted fabric, A well-known method is employable.

  Since the fiber structure of the present invention uses the synthetic fiber filament yarn provided with the synthetic fiber treatment agent of the present invention, it can be produced with reduced generation of static electricity, and fluff, yarn breakage, dyeing Defectiveness is reduced.

  The present invention is described in detail in the following examples and comparative examples, but the present invention is not limited thereto. In the text and tables, “%” means “% by weight”.

(Examples 1-15 and Comparative Examples 1-6)
The components described in Tables 2 and 3 (details of the components are described in Table 1) were mixed and stirred to prepare the treating agents for synthetic fibers in each Example and Comparative Example. In addition, the number of the compounding table in Table 2 and Table 3 shows by weight part. Next, a treatment agent was prepared by dispersing the synthetic fiber treatment agent in an oil-in-water type (in an O / W emulsion state) so that the nonvolatile content concentration in the treatment agent was 20% by weight.
This processing agent is applied to a polyester fiber yarn filament immediately after spinning using a metalling pump device under the conditions that the spinning speed is 1000 m / min and the non-volatile content of the processing agent is 0.8% by weight. The yarn (1100 dtex / 192f) to which the treatment agent was applied was obtained by directly stretching the film without first winding it. Using this filament yarn, smoothness, antistatic property, rubbing test, bundling property, treatment agent compatibility, and dyeability were evaluated under the temperature and humidity conditions of 20 ° C and 65% RH by the following methods. It was. The results are shown in Tables 2 and 3.

(Smoothness)
Using a running yarn method friction measuring machine (YF-870 manufactured by Toray Engineering Co., Ltd.), friction was measured under the following conditions, and a friction coefficient was calculated.
Yarn speed: 100 m / min
Hot roller temperature: 20 ° C
Friction body: φ40mm satin chrome pin Contact angle (θ): π (radian)
Load (T ₁ ): 500 g
Friction coefficient = (1 / θ) ln (T ₂ / T ₁ )
T ₂ : Measurement tension <judgment method>
Good smoothness: coefficient of friction of 0.190 or less Smoothness poor: coefficient of friction greater than 0.190

(Antistatic)
The amount of static electricity generated in the friction body when measuring the friction characteristics was measured with a current collector (Kasuga type current collector: KS-525) using a running yarn method friction measuring machine.
<Judgment method>
Good anti-static property: -0.5 to +0.5 kV
Antistatic failure: -0.5 kV or less, +0.5 kV or more

(Rubbing characteristics)
Using the apparatus of FIG. 1, the number of strokes until the yarn to which the treatment agent was applied was cut under the following conditions was measured. The larger the value, the better the rubbing characteristics.
Load W: 300g
Number of twists: 2 times Fiber-fiber crossing angle: 60 °
<Judgment method>
Good rubbing property: 150 times or more Bad rubbing property: less than 150 times

(Focusing property)
The filament yarn is fixed to a horizontally installed rod and adjusted so that the length from the rod is 30 cm. Further, a load (200 g) is applied below the filament yarn. Next, the center of the yarn was cut with a scissors, and the yarn breakage state of the cut portion at that time was visually determined. In the table, the convergence is indicated.
<Judgment method>
○: Almost no yarn breakage ×: The yarn was broken upward by 10 cm or more from the cut end

(Treatment agent compatibility)
The state of compatibilization of the treating agent when each component was added and mixed was visually judged.
<Judgment method>
○: Transparent and uniform ×: Two-phase separation or cloudiness was observed

(Dyeing property)
The obtained polyester filament yarn was formed into a tube by a circular knitting machine manufactured by Koike Machinery Co., Ltd., and the polyester knitted fabric was dyed. The dyed polyester knitted fabric was mounted on a gray scale, and the dyeability was evaluated according to the following criteria from the number of dyeing defects per meter of knitted fabric.
<Judgment method>
No dyeing defects: ◎
Dyeing defect 1 or more and less than 2 ： ○
2 or more and less than 10 dyeing defects: △
More than 10 staining defects: ×

(Examples 16 to 21 and Comparative Examples 7 to 10)
The components described in Table 4 (details of the components are described in Table 1) were mixed and stirred to prepare the treating agents for synthetic fibers in Examples and Comparative Examples. Next, a treatment agent was prepared by dispersing the synthetic fiber treatment agent in an oil-in-water type (in an O / W emulsion state) so that the nonvolatile content concentration in the treatment agent was 13% by weight.
Next, a non-volatile treatment agent is applied by a guide oiling method using a metalling pump device to a polyester semidal yarn filament containing 0.4% of titanium oxide, which is discharged from the die with an extruder and cooled and solidified. The O / W emulsion was applied so that the applied amount was 0.8% by weight, and then continuously stretched without being scraped off to obtain a yarn (84 dtex / 36f) to which the treatment agent was applied. . Using this filament yarn, under the temperature and humidity conditions of 20 ° C. and 65% RH, the antistatic property, bundling property, treatment agent compatibility, and dyeability are the same as in Examples 1 to 15, and smoothness, The rubbing characteristics were evaluated by the following method. The results are shown in Table 4.

(Smoothness)
Using a running yarn method friction measuring machine (YF-870 manufactured by Toray Engineering Co., Ltd.), friction was measured under the following conditions, and a friction coefficient was calculated.
Yarn speed: 100 m / min
Hot roller temperature: 20 ° C
Friction body: φ40mm satin chrome pin Contact angle (θ): π (radian)
Load (T ₁ ): 10 g
Friction coefficient = (1 / θ) ln (T ₂ / T ₁ )
T ₂ : Measurement tension <judgment method>
Good smoothness: coefficient of friction 0.230 or less Smoothness poor: coefficient of friction greater than 0.230

(Rubbing characteristics)
Using the apparatus of FIG. 1, the number of strokes until the yarn to which the treatment agent was applied was cut under the following conditions was measured. The larger the value, the better the rubbing characteristics.
Load W: 150g
Number of twists: 1.5 times Fiber-fiber crossing angle: 45 °
<Judgment method>
Good rubbing property: 150 times or more Bad rubbing property: less than 150 times

(Examples 22-23 and Comparative Examples 11-13)
The components described in Table 5 (details of the components are described in Table 1) were mixed and stirred to prepare the treating agents for synthetic fibers in each Example and Comparative Example. Next, a treatment agent in which the treatment agent for synthetic fibers was dispersed in an oil-in-water type (in an O / W emulsion state) was prepared so that the nonvolatile content concentration in the treatment agent was 10% by weight.
Next, a non-volatile treatment agent is discharged by a guide oiling method using a metalling pump device on a polyester semi-dal yarn having a titanium oxide content of 0.4% by weight discharged from a die with an extruder and cooled and solidified. An O / W emulsion was applied so that the applied amount was 0.4 wt%, and a 133 dtex / 36 f partially oriented yarn (Partially Oriented Yarn; hereinafter abbreviated as POY) was spun and wound at a speed of 3000 m / min. By taking, 10 kg of whipped cheese was obtained. Next, using the obtained POY, with a false twisting machine that is a hot plate contact heating method, stretched false twisting is performed under the following false twisting conditions, and an 84 dtex / 36f false twisted yarn (Draw) Texturing Yarn (hereinafter abbreviated as DTY). Using this false twisted yarn, the rubbing characteristics are the same as in Examples 1 to 15 with respect to antistatic property, bundling property, treating agent compatibility, and dyeability under the temperature and humidity conditions of 20 ° C. and 65% RH. Was evaluated by the same method as in Examples 16 to 21, and the smoothness was evaluated by the following method. The results are shown in Table 5.

<False twist processing conditions>
Stretching false twisting condition false twisting machine of false twisting machine which is hot plate contact heating method: HTS-15V manufactured by Teijin Seiki Co., Ltd.
Machining speed: 800m / min
Stretch ratio (DR): 1.60
Twisting device: 3-axis disk friction system 1-5-1
(1 guide disk-5 working (polyurethane) disks-1 guide disk)
Disk speed / thread speed (D / Y): 1.8
Overfeed rate: 3%
First heater (twisted side) temperature: 200 ° C
Second heater (untwisting side) temperature: room temperature

(Smoothness)
Using a running yarn method friction measuring machine (YF-870 manufactured by Toray Engineering Co., Ltd.), friction was measured under the following conditions, and a friction coefficient was calculated. In the table, smoothness is indicated.
Yarn speed: 100 m / min
Hot roller temperature: 20 ° C
Friction body: φ40mm satin chrome pin Contact angle (θ): π (radian)
Load (T ₁ ): 10 g
Friction coefficient = (1 / θ) ln (T ₂ / T ₁ )
T ₂ : Measurement tension <judgment method>
Good smoothness: coefficient of friction of 0.300 or less Smoothness poor: coefficient of friction greater than 0.300

「ＰＯＥ３０ｍｏｌ硬化ひまし油エーテル、マレイン酸、ステアリン酸縮合物」は、硬化ひまし油エーテルとマレイン酸との縮合物の水酸基をステアリン酸で封鎖したエステルをいう。

“POE 30 mol hydrogenated castor oil ether, maleic acid, stearic acid condensate” refers to an ester in which the hydroxyl group of the condensate of hardened castor oil ether and maleic acid is blocked with stearic acid.

Claims (7)

Essentially an organic zinc compound (A) represented by the general formula (1) and at least one base component (B) selected from ester compounds, polyether compounds and mineral oils having no (poly) oxyalkylene groups The processing agent for synthetic fibers which contains and the weight ratio of this organozinc compound (A) to the non volatile matter of a processing agent is 0.5 to 6 weight%.

(In the formula, R ^{1 to} R ⁴ each independently represent a hydrocarbon group.)   The processing agent for synthetic fibers of Claim 1 whose weight ratio of the said base component (B) to the non volatile matter of a processing agent is 30 to 98 weight%.   Further, a polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester, an ester obtained by blocking at least one hydroxyl group of the polyhydric alcohol ester with a fatty acid, a condensate of the polyhydric alcohol ester and a dicarboxylic acid, and at least one of the condensates 2. The composition according to claim 1, comprising at least one component (C) selected from esters in which two hydroxyl groups are blocked with a fatty acid, wherein the weight proportion of the component (C) in the nonvolatile content of the treatment agent is 1 to 30% by weight. 2. The processing agent for synthetic fibers according to 2.   The processing agent for synthetic fibers according to claim 3, wherein the polyoxyalkylene group-containing hydroxy fatty acid polyhydric alcohol ester has a weight average molecular weight of 1000 to 8000.   The synthetic fiber treatment agent according to any one of claims 1 to 4, wherein the synthetic fiber is a polyester fiber, a polyamide fiber, or a polyolefin fiber.   A synthetic fiber filament yarn in which the synthetic fiber treating agent according to any one of claims 1 to 5 is applied to a raw material synthetic fiber filament yarn.   A fiber structure comprising the synthetic fiber filament yarn according to claim 6.

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