JPWO2015125753A1 - Elastic fiber treatment agent and elastic fiber - Google Patents

Abstract

Provided is an elastic fiber treating agent having good antistatic and unwinding properties even after high-temperature storage. At least one base component (A) selected from silicone oil, mineral oil and ester oil, and at least 1 selected from organic phosphate ester (B1), organic amine (B2) and organic phosphate ester amine salt (B3) Component (B) which is a seed and dialkylsulfosuccinic acid ester salt (C) If it is a certain elastic fiber processing agent, the said subject can be solved.

Description

  The present invention relates to an elastic fiber treatment agent and an elastic fiber to which the treatment agent is applied.

Since elastic fibers have a property that is rich in stretchability, fiber / metal friction that occurs when contacting with a friction body such as a guide is large in the yarn making process and the post-processing process, and thread breakage occurs. There is a case.
Therefore, the elastic fiber uses a treatment agent for elastic fiber that uses a smoothing agent such as silicone oil, mineral oil, and ester oil as a base component.
Since the smoothing agent has poor antistatic properties, an antistatic agent is usually used in combination, and a method of adding an alkyl phosphate metal salt as the antistatic agent has been proposed (Patent Document 1).
In addition, the elastic fiber is a fiber that easily sticks because it has viscoelasticity. In particular, in the inner layer portion of the silk thread body (hereinafter sometimes referred to as cheese), the sticking progresses with time due to the pressure applied during winding. Therefore, when using an elastic fiber thread body, unwinding is poor and thread breakage is caused. In order to improve this unwinding failure, various treatment agents for elastic fibers have been developed.
For example, Patent Document 2 describes an elastic fiber treatment agent containing a silicone resin (MQ resin).
However, with conventional antistatic agents and unwinding improvers, there is no problem with static electricity or unwinding when using a yarn body immediately after spinning elastic fibers, but in high temperatures in summer, etc. When used after the body has been stored, there have been cases where the generation of static electricity is increased and the unraveling property is insufficient due to the progress of agglutination.

Japanese Patent Publication No. 41-21956 Japanese Unexamined Patent Publication No. 09-078460

  The objective of this invention is providing the processing agent for elastic fibers which has favorable antistatic property and unwinding property after high temperature storage.

As a result of intensive investigations, the present inventors have found that the above-mentioned problems can be solved if the elastic fiber treatment agent contains the base component (A), the specific component (B), and the dialkylsulfosuccinate ester salt (C) in a specific ratio. Found that it can be solved.
That is, the present invention relates to at least one base component (A) selected from silicone oil, mineral oil, and ester oil, an organic phosphate ester (B1), an organic amine (B2), and an organic phosphate ester amine salt (B3). ) And a dialkylsulfosuccinic acid ester salt (C) that is at least one member selected from the group (B), wherein the weight ratio of the dialkylsulfosuccinic acid ester salt (C) to 100 parts by weight of the component (B) is It is a processing agent for elastic fibers which is 20 to 2000 parts by weight.
The organic phosphate ester (B1) is preferably represented by the following general formula (1).

(In the formula, m is a number of ¹ to 2. R ¹ is an alkyl group or an alkenyl group having 6 to 24 carbon atoms. A ¹ O is an oxyalkylene group having 2 to 4 carbon atoms. A is 0. When the number of R ¹ and (A ¹ O) _a is two in the molecule, they may be the same or different from each other.
It is preferable that the organic amine (B2) is represented by the following general formula (2).

(Wherein R ² and R ³ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ² O) _b. H represents A ² O is an oxyalkylene group having 2 to 4 carbon atoms, b is a number having 1 to 30, R ⁴ is an alkyl group having 1 to 18 carbon atoms, and an alkenyl group having 2 to 18 carbon atoms. A group, an alkanol group having 1 to 18 carbon atoms or (A ³ O) _c H. A ³ O is an oxyalkylene group having 2 to 4 carbon atoms, and c is a number from 1 to 30.)
It is preferable that the organophosphate ester amine salt (B3) is represented by the following general formula (3).

(In the formula, n is a number of 1 to 2. R ⁵ is an alkyl or alkenyl group having 6 to 24 carbon atoms. A ⁴ O is an oxyalkylene group having 2 to 4 carbon atoms. D is 0. When there are two R ⁵ and (A ⁴ O) _{d in the} molecule, they may be the same or different from each other, and M ¹ is HNR ⁶ R ⁷ R ^8. R ⁶ and R ⁷ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁵ O). _e represents H. A ⁵ O is an oxyalkylene group having 2 to 4 carbon atoms, e is a number having 1 to 30. R ⁸ is an alkyl group having 1 to 18 carbon atoms, and 2 to 18 carbon atoms. alkenyl group, .A ⁶ O representing the alkanol group or ^(a 6 _{O) f} H having 1 to 18 carbon atoms is from 2 carbon atoms Which is the oxyalkylene group .f is the number of 1 to 30.)
R ¹ and R ⁵ are preferably branched alkyl groups having 2 or more branches. The number of branches is defined as “number of methyl groups contained in alkyl group−1”.
The dialkylsulfosuccinic acid ester salt (C) is preferably represented by the following general formula (4).

(In the formula, R ⁹ and R ¹⁰ each independently represents an alkyl group having 1 to 30 carbon atoms or an alkenyl group having 2 to 30 carbon atoms. M ² represents a monovalent or divalent metal ion and R ¹¹ NR. ¹² R ¹³ represents one selected from R ¹⁴ and R ^{11 to} R ¹⁴ each independently represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁷ O) _g. Represents H. A ⁷ O represents an oxyalkylene group having 2 to 4 carbon atoms, g represents a number of 1 to 30, and q represents a valence of M ² .

The dialkylsulfosuccinic acid ester salt (C) is preferably 0.01 to 20 parts by weight with respect to 100 parts by weight of the base component (A).
It is preferable to further contain an amino-modified silicone and / or a polyether-modified silicone.
The elastic fiber of the present invention is obtained by applying the elastic fiber treatment agent to the elastic fiber main body.

  Since the elastic fiber treatment agent of the present invention has good antistatic and unwinding properties even after storage at high temperature, the elastic fiber to which the elastic fiber treatment agent has been applied is an elastic fiber even after storage at high temperatures in summer. Good passability in post-processing steps and little generation of static electricity.

The schematic diagram explaining the measuring method of roller static electricity generation amount. The schematic diagram explaining the measuring method of unwinding speed ratio. The schematic diagram explaining the measuring method of knitting tension | tensile_strength. The schematic diagram explaining the measuring method of the friction coefficient between fibers. The schematic diagram explaining the measuring method of fluff adsorption.

  The processing agent for elastic fibers of the present invention contains a base component (A), the component (B), and the dialkylsulfosuccinic acid ester salt (C), and the component (B) and dialkylsulfosuccinic acid ester salt ( C) is contained in a specific ratio. This will be described in detail below.

(Base component (A))
The base component (A) is at least one selected from silicone oil, mineral oil, and ester oil. The base component (A) is an essential component for the elastic fiber treatment agent, and is an agent that reduces the friction between fibers and metals.

Although it does not specifically limit as silicone oil, Polydimethylsiloxane, polymethylphenylsiloxane, polymethylalkylsiloxane etc. can be mentioned, You may use 1 type (s) or 2 or more types. Viscosity at 25 ° C. of the silicone oil is preferably from 2 to 100 mm ² / s, more preferably 5~70mm ² / s, more preferably 5 to 50 mm ² / s. When the viscosity is less than 2 mm ² / s, the silicone oil may volatilize, and when it exceeds 100 mm ² / s, the solubility of other components blended in the treatment agent may deteriorate.
The average amount of siloxane bonds (SiOR ¹⁵ R ¹⁶ : R ¹⁵ and R ¹⁶ each independently represents an organic group) in the silicone oil is preferably 3 to 100, more preferably 7 to 60, and 7 to 50. Is more preferable. The organic group of R ¹⁵ and R ¹⁶ is a hydrocarbon group having 1 to 24 carbon atoms, and is a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a pentyl group, an isopentyl group, a hexyl group, a cyclo group. A propyl group, a cyclohexyl group, a phenyl group, a benzyl group and the like can be mentioned, and a methyl group and a phenyl group are particularly preferable.

  Although it does not specifically limit as mineral oil, A machine oil, a spindle oil, a liquid paraffin etc. can be mentioned, You may use 1 type (s) or 2 or more types. The viscosity of the mineral oil at 30 ° C. with a Redwood viscometer is preferably 30 seconds to 350 seconds, more preferably 35 seconds to 200 seconds, and even more preferably 40 seconds to 150 seconds. As the mineral oil, liquid paraffin is preferable because of low odor generation. When the viscosity of the mineral oil is less than 30 seconds, the quality of the obtained elastic fiber may be deteriorated. On the other hand, when the viscosity of the mineral oil exceeds 350 seconds, the solubility of other components blended in the treatment agent may deteriorate.

  The ester oil is not particularly limited as long as it is an ester of a monohydric alcohol and a monovalent carboxylic acid, an ester of a monohydric alcohol and a polyvalent carboxylic acid, or an ester of a polyhydric alcohol and a monovalent carboxylic acid. You may use a seed | species or 2 or more types. As monohydric alcohols, monohydric aliphatic alcohols, aromatic alcohols, alicyclic alcohols, phenols and the like described later can be used. Among these, monovalent aliphatic alcohols and aromatic alcohols are preferable.

Although it does not specifically limit as monohydric aliphatic alcohol, For example, octanol, 2-ethylhexanol, 1-nonanol, 1-decanol, undecyl alcohol, lauryl alcohol, tridecyl alcohol, isotridecyl alcohol, myristyl alcohol , Pentadecyl alcohol, 1-hexadecanol, palmitoleyl alcohol, 1-heptadecanol, stearyl alcohol, oleyl alcohol, isostearyl alcohol, nonadecyl alcohol, 1-eicosanol, behenyl alcohol, 1-tetracosanol, erucyl alcohol And lignoceryl alcohol.
Examples of the aromatic alcohol include phenol and benzyl alcohol.
Examples of the alicyclic alcohol include cyclooctanol, cyclododecanol, cyclohexanol, cycloheptanol, cyclopentanol, and menthol.

  As the monovalent carboxylic acid, monovalent aliphatic carboxylic acid, aromatic carboxylic acid and hydroxycarboxylic acid described later can be used. Among these, monovalent aliphatic carboxylic acids and aromatic carboxylic acids are preferable.

  Although it does not specifically limit as said monovalent carboxylic acid, For example, valeric acid, caproic acid, enanthic acid, caprylic acid, 2-ethylhexylic acid, capric acid, lauric acid, myristic acid, pentadecylic acid, palmitic acid, palmitic acid , Margaric acid, stearic acid, oleic acid, isostearic acid, vaccenic acid, linoleic acid, linolenic acid, arachidic acid, behenic acid, lignoceric acid, cetylonic acid, benzoic acid and the like.

  The polyvalent carboxylic acid is not particularly limited. For example, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, fumaric acid, phthalic acid, trimellitic acid, pyromellitic acid, citric acid, isocitric acid, etc. Is mentioned.

  The polyhydric alcohol is not particularly limited. For example, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,6-hexanediol, 1,9-nonanediol, 2-methyl-1,8-octanediol, cyclohexanediol, glycerin, sorbitol, Examples include trimethylolpropane and pentaerythritol.

  Specific examples of the ester oil include, but are not limited to, for example, heptyl valerate, heptyl caproate, octyl caproate, cetyl caprylate, isooctyl laurate, isopropyl myristate, isopropyl palmitate, isostearyl palmitate, stearin Butylate, octyl stearate, oleyl laurate, isotridecyl stearate, octyl stearate, isooctyl stearate, tridecyl stearate, isobutyl stearate, methyl oleate, isobutyl oleate, heptyl oleate, oleyl oleate, polyethylene dilaurate Glycol, polyethylene glycol dimyristylate, polyethylene glycol dioleate, polyethylene glycol distearate, polyethylene glycol dilaurate Lenglycol, polypropylene glycol dimyristate, polypropylene glycol dioleate, polypropylene glycol distearate, dicetyl oxalate, diisooctyl malonate, dilauryl succinate, diisodecyl adipate, isononyl adipate, dioctyl adipate, diisooctyl fumarate, diisooctyl phthalate Dioctyl phthalate, dinonyl phthalate, diisodecyl phthalate, diundecyl phthalate, triisooctyl trimellitic acid, triisobutyl trimellitic acid, triisodecyl trimellitic acid, triisostearyl trimellitic acid, glycerin triisooctyl, glycerin trilauryl , Glycerol trimyristyl, glycerol trioleyl, glycerol tristearyl, sorbitan monora Rate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquioleate, sorbitan trilaurate, sorbitan tristearate, include sorbitan tanto tripalmitate like.

(Ingredient (B))
The component (B) is at least one selected from an organic phosphate ester (B1), an organic amine (B2), and an organic phosphate ester amine salt (B3).
When the above component (B) is contained in a specific ratio together with the dialkylsulfosuccinic acid ester salt (C), which will be described later, compared with the case where each component is contained alone, good antistatic and unwinding properties even after high temperature storage. This is a component that does not deteriorate smoothness.
Although the factors that show good antistatic and unwinding properties after storage at a higher temperature than when each component is alone are not clear, since the effect can be obtained only at a specific ratio, the above component (B) and dialkylsulfosuccinate It is presumed that this is due to an interaction such as salt exchange with the salt (C). A component (B) may be a mixture and may use 1 type (s) or 2 or more types.

  The component (B) is at least one selected from the organic phosphate ester (B1), the organic amine (B2), and the organic phosphate ester amine salt (B3). From the viewpoint of obtaining the effect of reducing the amount of adsorbed cotton, the organic phosphate amine salt (B3) is preferred.

The organic phosphate ester (B1) is an unneutralized product of the organic phosphate ester. The structure represented by the above general formula (1) is preferable from the viewpoint of easily obtaining good antistatic properties after high-temperature storage in combination with the dialkylsulfosuccinic acid ester salt (C).
In general formula (1), m is a number of 1-2. R ¹ is an alkyl group or alkenyl group having 6 to 24 carbon atoms. A ¹ O is an oxyalkylene group having 2 to 4 carbon atoms. a is a number from 0 to 30. When there are two R ¹ and (A ¹ O) _{a in the} molecule, they may be the same or different from each other.

  In the general formula (1), when m is 1, the organic phosphate ester (B1) represents an organic phosphate monoester (hereinafter referred to as a mono-form). When m is 2, it represents an organic phosphoric acid diester (hereinafter referred to as di-form). In general formula (1), n is 1-2 and it means that the organic phosphate ester (B1) is a mixture of a mono form and a di form. For example, when m is 1.3, the ratio of the number of moles of the mono form to the number of moles of the di form is 7: 3.

R ¹ is an alkyl group or alkenyl group having 6 to 24 carbon atoms. The number of carbon atoms in R ¹ is preferably 10 to 18, more preferably from 10 to 16, 10 to 14 is more preferred. If R ¹ has less than 6 carbon atoms or more than 24 carbon atoms, the antistatic property may be insufficient. R ¹ may be linear or branched, and may be saturated or unsaturated. When R ¹ is a branched alkyl group having two or more branches, the phosphate ester having many branches is excellent in compatibility as a whole of the treating agent for elastic fibers with respect to the base oil having low polarity. This is preferable because the effects of the present application are easily exhibited. The upper limit of the preferred number of branches for R ¹ is 11. The number of branches is defined as “the number of methyl groups contained in the alkyl group minus 1”.

A ¹ O represents an oxyalkylene group having 2 to 4 carbon atoms. a represents the average number of moles of A ¹ O added. a is a number from 0 to 30, preferably 0 to 20, and more preferably 0 to 10 from the viewpoint of smoothness. When a is 0, the stability in the treating agent is particularly excellent. If a is more than 30, the stability in the treatment agent may be insufficient.

  The organic phosphate ester (B1) is not particularly limited, but from the viewpoint of improving antistatic properties after high-temperature storage when used in combination with a dialkylsulfosuccinate ester salt (C) described later, hexyl phosphate ester, octyl phosphate Ester, decyl phosphate ester, dodecyl phosphate ester, tetradecyl phosphate ester, hexadecyl phosphate ester, octadecyl phosphate ester, behenyl phosphate ester, trioctacosanyl phosphate ester, octadecenyl phosphate ester, 2-ethylhexyl phosphorus Acid ester, isoheptyl phosphate, isooctyl phosphate, isononyl phosphate, isodecyl phosphate, isoundecyl phosphate, isododecyl phosphate, isotridecyl phosphate, isotetradecyl Phosphate ester, isohexadecyl phosphate ester, isooctadecyl phosphate ester, t-butyl phosphate ester, benzyl phosphate ester, octylphenyl phosphate ester, cyclohexyl phosphate ester, polyoxyethylene 5-mol addition hexadecyl ether phosphate Ester, polyoxyethylene 15 mol addition hexadecyl ether phosphate ester, polyoxyethylene 7 mol addition polyoxypropylene 3.5 mol addition secondary alkyl ether phosphate ester, polyoxyethylene 2 mol polyoxypropylene 5 mol addition dodecyl phosphate ester , Polyoxyethylene 3 mol addition secondary alkyl ether phosphate, polyoxyethylene 2 mol addition dodecyl ether phosphate, polyoxyethylene 4 mol Phenol phosphate ester.

The organic phosphate ester (B1) can be synthesized by a known method. For example, it can be obtained by reacting an inorganic phosphoric acid such as P ₂ O ₅ with a compound having an alcoholic hydroxyl group in the molecule such as alcohol or polyoxyalkylene-added alkyl ether in an arbitrary molar ratio.
The molar ratio of P ₂ O ₅ to 1 mol of the compound having an alcoholic hydroxyl group in the molecule is preferably 0.15 to 0.4. 0.2-0.335 is more preferable and 0.25-0.3 is especially preferable. When it exceeds 0.4, smoothness may be lowered when used in combination with a dialkylsulfosuccinate (C) described later. If it is less than 0.15, the antistatic performance after high-temperature storage may deteriorate when used in combination with a dialkylsulfosuccinate (C) described later.

  The organic amine (B2) has a structure represented by the above general formula (2) from the viewpoint of easily obtaining an antistatic property after high-temperature storage by the combined use with a dialkylsulfosuccinate (C) described later. More preferred.

In general formula (2), R ² and R ³ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ² representing the _{O) b} H. A ² O is an oxyalkylene group having 2 to 4 carbon atoms. b is a number from 1 to 30.
R ⁴ represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ³ O) _c H. A ³ O is an oxyalkylene group having 2 to 4 carbon atoms. c is a number from 1 to 30.
The alkyl group of R ² , R ³ and R ⁴ may be linear or branched, has 1 to 18 carbon atoms, and is preferably 4 to 18 from the viewpoint of antistatic properties and unwinding properties after high-temperature storage, 4-12 are more preferable.

The alkanol group of R ² , R ³ and R ⁴ may be linear or branched, has 1 to 18 carbon atoms, and is preferably 1 to 10 from the viewpoint of antistatic properties and unwinding properties after high-temperature storage, 1-5 are more preferable.

  The organic amine (B2) is not particularly limited, but dibutylamine, didodecylamine, from the viewpoint of easily obtaining good antistatic properties after high-temperature storage in combination with a dialkylsulfosuccinic acid ester salt (C) described later. Dodecyldiethanolamine, dodecylethanolamine, triethanolamine, dibutylethanolamine, polyoxyethylene dodecylamine, polyoxypropylene dodecylamine, polyoxyethylene octadecenylamine, polyoxypropylene octadecenylamine, dimethyloctadecylamine, diethanolamine, etc. Can be mentioned.

  The organic phosphate amine salt (B3) is represented by the above general formula (3) from the viewpoint of easily obtaining good antistatic properties after high-temperature storage in combination with the dialkylsulfosuccinate ester salt (C) described later. It is preferable that it is a structure.

In formula, n is a number of 1-2. R ⁵ is an alkyl group or alkenyl group having 6 to 24 carbon atoms. A ⁴ O is an oxyalkylene group having 2 to 4 carbon atoms. d is a number from 0 to 30.
When there are two R ⁵ and (A ⁴ O) _{d in the} molecule, they may be the same or different from each other. M ¹ is represented by HNR ⁶ R ⁷ R ⁸ . R ⁶ and R ⁷ each independently represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁵ O) _e H. A ⁵ O is an oxyalkylene group having 2 to 4 carbon atoms. e is a number from 1 to 30.
When R ⁵ is a branched alkyl group having 2 or more branches, the phosphate ester having many branches is excellent in compatibility as a whole of the treatment agent for elastic fibers with respect to the base oil having low polarity. Therefore, it is preferable because the effect of the present application is easily exhibited. The upper limit of the preferred number of branches for R ⁵ is 11. The number of branches is defined as “the number of methyl groups contained in the alkyl group minus 1”.
R ⁸ represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁶ O) _f H. A ⁶ O is an oxyalkylene group having 2 to 4 carbon atoms. f is a number from 1 to 30.

The alkyl group of R ⁶ , R ⁷ and R ⁸ may be linear or branched, has 1 to 18 carbon atoms, and is preferably 4 to 18 from the viewpoint of antistatic properties and unwinding properties after high-temperature storage, 4-12 are more preferable.
The alkanol group of R ⁶ , R ⁷ and R ⁸ may be linear or branched, has 1 to 18 carbon atoms, and is preferably 1 to 10 from the viewpoint of antistatic property and unwinding property after high-temperature storage, 1-5 are more preferable.

The method for obtaining the organic phosphate ester salt (B3) is not particularly limited. For example, it can be obtained by reacting the organic phosphate ester (B1) and the organic amine (B2).
When the organic phosphate ester (B1) and the organic amine (B2) are reacted, [weight of the organic phosphate ester (B1)] × [acid value of the organic phosphate ester (B1)]: [ The weight of the organic amine (B2)] × [amine value of the organic amine (B2)] is preferably 1: 0.5 to 1: 1.5, more preferably 1: 0.8 to 1: 1.2. If it is less than 1: 0.5 or more than 1: 1.5, even if it is used in combination with the dialkylsulfosuccinic acid ester salt (C), the antistatic property after high-temperature storage may not be improved.

  Although it does not specifically limit as organic phosphate ester amine salt (B3), From a viewpoint that the favorable antistatic property after high temperature storage by combined use with the dialkyl sulfosuccinate ester salt (C) mentioned later is easy to be obtained, hexyl phosphate ester Dibutylamine salt, Octyl phosphate ester dododecylamine salt, Decyl phosphate ester dodecyl diethanolamine salt, Dodecyl phosphate ester dodecyl ethanolamine salt, Hexadecyl phosphate ester dodecyl ethanolamine salt, Hexadecyl phosphate ester dodecyl diethanolamine salt, Octadecyl phosphate Ester triethanolamine salt, docosyl phosphate dibutyl ethanolamine salt, octadecenyl phosphate polyoxyethylene adduct dodecylamine salt, isooctyl phosphate polyester Cyethylene addition dodecylamine salt, isoheptyl phosphate polyoxyethylene addition dodecylamine salt, isononyl phosphate polyoxypropylene addition dodecylamine salt, isodecyl phosphate polyoxyethylene addition octadecenylamine salt, isoundecyl phosphate poly Oxypropylene-added octadecenylamine salt, isooctadecyl phosphate dimethyloctadecylamine salt, isotridecyl phosphate diethanolamine salt, isohexadecyl phosphate dibutylethanolamine salt, isooctadecyl phosphate dodecylethanolamine salt, t -Butyl phosphate triethanolamine salt, benzyl phosphate polyoxyethylene-added dodecylamine salt, octylphenyl chloride Acid ester dibutylamine salt, cyclohexyl phosphate triethanolamine salt, polyoxyethylene-added hexadecyl ether phosphate dodecylethanolamine salt, polyoxyethylene polyoxypropylene-added secondary alkyl ether phosphate polyoxyethylene-added dodecylamine salt , Polyoxyethylene polyoxypropylene added dodecyl phosphate triethanolamine salt, polyoxyethylene added secondary alkyl ether phosphate triethanolamine salt, polyoxyethylene added dodecyl ether phosphate dibutyl ethanolamine salt, polyoxyethylene added phenol Phosphate polyoxyethylene-added octadecenylamine salt, isooctyl phosphate ester Sildiethanolamine salt, hexadecyl phosphate ester dododecylamine salt, hexyl phosphate ester octadecyldimethylamine salt, decyl phosphate dibutylamine salt, isotridecyl phosphate ester polyoxyethylene adduct dodecylamine salt, polyoxyethylene adduct isotridecyl Examples include phosphate ester triethanolamine salt, octyl phosphate ester dodecylethanolamine salt, isooctadecyl phosphate polyoxypropylene-added octadecenylamine salt, octadecenyl phosphate dibutylethanolamine salt, etc. Two or more kinds may be used.

  The state of the component (B) in the treatment agent is not particularly limited, and may be dissolved in the treatment agent, dispersed as an individual, or partially dissolved and partially dispersed as an individual. May be.

(Dialkylsulfosuccinic acid ester salt (C))
The dialkylsulfosuccinic acid ester salt (C) is contained essentially in the elastic fiber treating agent of the present invention. The dialkylsulfosuccinic acid ester salt (C) is a component that improves the antistatic property and the unwinding property after high-temperature storage when it is contained in the treatment agent in a specific ratio with the component (B).

The dialkylsulfosuccinic acid ester salt (C) preferably has the structure represented by the general formula (4) from the viewpoint of easily obtaining the antistatic property by the combined use with the component (B).
In General Formula (4), R ⁹ and R ¹⁰ each independently represent an alkyl group having 1 to 30 carbon atoms or an alkenyl group having 2 to 30 carbon atoms.
Examples of R ⁹ and R ¹⁰ include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a pentyl group, a hexyl group, an isohexyl group, a heptyl group, an octyl group, an isooctyl group, a nonyl group, Examples include decyl group, isodecyl group, undecyl group, 2-ethyldecyl group, dodecyl group, tridecyl group, isotridecyl group, tetradecyl group, octadecyl group, and eicosyl group. Examples of the alkenyl group having 2 to 30 carbon atoms include a hexenyl group, a heptenyl group, an octenyl group, an undecenyl group, a dodecenyl group, and a nonadecenyl group.
R ⁹ and R ¹⁰ are independently preferably an alkyl group having 3 to 26 carbon atoms, more preferably 5 to 15 carbon atoms.
In General Formula (4), M ² represents one type selected from monovalent or divalent metal ions and R ¹¹ NR ¹² R ¹³ R ¹⁴ . R ^{11 to} R ¹⁴ each independently represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁷ O) _g H. A ⁷ O is an oxyalkylene group having 2 to 4 carbon atoms. g is a number from 1 to 30. q represents the valence of ^{M 2.}

Formula hydrogen atom as ^{M 2} in (4), an alkali metal such as lithium, potassium, sodium, etc., alkaline earth metals, such as calcium, magnesium, etc., wherein ^{R 11} represented by ^{R 11 NR 12 R 13 R 14} ~ As the structure of R ¹⁴ , a hydrogen atom, a methyl group, an ethyl group, a hydroxyethyl group, a butyl group, or the like is used.

  Specific examples of the dialkylsulfosuccinic acid ester salt (C) include, but are not limited to, sodium diisooctylsulfosuccinate, sodium dioctylsulfosuccinate, potassium diisooctylsulfosuccinate, magnesium diisooctylsulfosuccinate, diisooctylsulfosuccinic acid Ammonium, diisooctylsulfosuccinate ethanolamine, diisooctylsulfosuccinate diethanolamine, diisooctylsulfosuccinate triethanolamine, dipentylsulfosuccinate sodium, dihexylsulfosuccinate sodium, diisohexylsulfosuccinate sodium, ditridecylsulfosuccinate sodium, di Potassium octadecyl sulfosuccinate, magnesium didodecyl sulfosuccinate, didecyl sulfosuccinate Examples thereof include tetrabutylammonium salt and sodium didecylsulfosuccinate. Among them, diisooctylsulfosuccinate is used from the viewpoint of easily obtaining good antistatic properties after high-temperature storage in combination with an organic phosphate ester amine salt (B3). Sodium acid salt, potassium diisooctylsulfosuccinate, magnesium diisooctylsulfosuccinate, potassium dioctadecylsulfosuccinate, magnesium didodecylsulfosuccinate, sodium ditridecylsulfosuccinate and tetrabutylammonium didecylsulfosuccinate are preferred. 1 type (s) or 2 or more types may be used for the dialkyl sulfosuccinic acid ester salt (C).

  The state of the dialkylsulfosuccinic acid ester salt (C) in the treatment agent is not particularly limited, and may be dissolved in the treatment agent or dispersed as a solid, partly dissolved and partly dissolved. It may be dispersed as an individual.

(Other components (D))
In addition to the components described above, the treatment agent for elastic fibers of the present invention has an alkyl-modified silicone, an ester-modified silicone, a polyether-modified silicone, an amino-modified silicone, a carbite in addition to the components described above. It may further contain at least one other component selected from a diol-modified silicone, an epoxy-modified silicone, a carboxy-modified silicone, a mercapto-modified silicone, an organopolysiloxane resin, a higher fatty acid metal salt, and a nonionic surfactant. Among these, amino-modified silicone and / or polyether-modified silicone are preferable from the viewpoint of improving smoothness and unwinding performance. 1 type (s) or 2 or more types may be used for another component (D).

  The modified silicone is generally a reactive (functional) group or a non-reactive group at least at one end of both ends, one end, a side chain, and both ends of a side chain of a polysiloxane such as dimethyl silicone (polydimethylsiloxane) ( It has a structure in which at least one functional group is bonded.

  More specifically, the modified silicone is an alkyl-modified silicone such as a modified silicone having a long-chain alkyl group (such as an alkyl group having 6 or more carbon atoms or a 2-phenylpropyl group); an ester that is a modified silicone having an ester bond. Modified silicones; polyether-modified silicones that are modified silicones having polyoxyalkylene groups (for example, polyoxyethylene groups, polyoxypropylene groups, polyoxyethyleneoxypropylene groups, etc.); aminopropyl groups and N- (2-amino) Ethyl) A modified silicone having an aminopropyl group or the like, an amino modified silicone; a carbinol modified silicone having a modified silicone having an alcoholic hydroxyl group; an epoxy having a epoxy group such as a glycidyl group or an alicyclic epoxy group. Modified silicone; can be mentioned a mercapto-modified silicone is a modified silicone having a mercapto group; a carboxyl group carboxyl-modified silicone is a modified silicone having a.

  The organopolysiloxane resin (hereinafter simply referred to as a silicone resin) means a silicone having a three-dimensional crosslinked structure. The silicone resin is generally at least one component selected from a monofunctional constituent unit (M), a bifunctional constituent unit (D), a trifunctional constituent unit (T), and a tetrafunctional constituent unit (Q). It consists of units.

  Although it does not specifically limit as said silicone resin, For example, silicone resins, such as MQ silicone resin, MQT silicone resin, T silicone resin, DT silicone resin, etc. can be mentioned.

Examples of the MQ silicone resin include R ^a R ^b R ^c SiO _1/2 that is ^a monofunctional structural unit (provided that R ^a, R ^b, and R ^c are all hydrocarbon groups) and 4 Examples thereof include a silicone resin containing SiO _4/2 which is a functional constituent unit.

Examples of the MQT silicone resin include R ^a R ^b R ^c SiO _1/2 that is ^a monofunctional structural unit (provided that R ^a , R ^b, and R ^c are all hydrocarbon groups), and 4 Examples thereof include a silicone resin containing SiO _{4/2 which} is a functional structural unit and RSiO _3/2 which is a trifunctional structural unit (where R is a hydrocarbon group).

Examples of the T-silicone resin include a silicone resin containing RSiO _3/2 (where R is a hydrocarbon group) which is a trifunctional structural unit (the terminal is a hydrocarbon group, a silanol group or an alkoxy group). And may be a base).

Examples of the DT silicone resin include R ^a R ^b SiO _2/2 which is ^a bifunctional structural unit (wherein R ^a and R ^b are both hydrocarbon groups) and a trifunctional structural unit. RSiO _3/2 (wherein R is a hydrocarbon group).

The hydrocarbon group for R, R ^a , R ^b and R ^{c is} a hydrocarbon group having 1 to 24 carbon atoms, such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, pentyl group, An isopentyl group, a hexyl group, a cyclopropyl group, a cyclohexyl group, a phenyl group, a benzyl group and the like can be mentioned, and a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, and a phenyl group are particularly preferable.

  Examples of the higher fatty acid metal salt include divalent or trivalent metal salts of fatty acids having 8 to 22 carbon atoms. Examples of higher fatty acid metal salts include calcium laurate, calcium palmitate, barium myristate, magnesium palmitate, magnesium laurate, magnesium stearate, magnesium 2-ethylhexylate, zinc behenate, aluminum tribehenate, calcium stearate, 2 -Calcium ethylhexylate, aluminum stearate, aluminum palmitate, barium stearate, zinc caprate, zinc stearate and the like can be mentioned.

  The average particle size of the higher fatty acid metal salt is not particularly limited, but is preferably 0.01 to 5 μm, more preferably 0.02 to 3 μm, and particularly preferably 0.05 to 2 μm. When the average particle size of the higher fatty acid metal salt is less than 0.01 μm, the effect of addition may not be observed. On the other hand, if the average particle size of the higher fatty acid metal salt is more than 5 μm, it may easily fall off from the fiber surface and may cause scum in the post-spinning process.

  The shape of the higher fatty acid metal salt is not particularly limited, but a needle shape is preferable. When the shape of the higher fatty acid metal salt is needle-shaped, the ratio between the longitudinal direction and the transverse direction is preferably 10: 1 to 2: 1 and more preferably 8: 1 to 3: 1 from the viewpoint of unraveling property. .

  Although it does not specifically limit as said nonionic surfactant, For example, the polyoxyethylene propylene which has polyoxyethylene alkyl ether (EO1-20 mol) which has a C8-C22 alkyl group, and a C8-C22 alkyl group Alkyl ether (PO1 to 20 mol), sorbitan fatty acid ester, EO adduct of sorbitan fatty acid ester (EO1 to 20 mol), PO adduct of sorbitan fatty acid ester (PO1 to 20 mol), alkyl group having 6 to 22 carbon atoms EO adduct (EO 1-20 mol) of alkylphenol having an alkyl group having 6 to 22 carbon atoms, fatty acid polyoxyethylene glycol ester (EO 1-20 mol), fatty acid polyoxypropylene glycol ester (PO 1-20 mol) Etc.Here, EO represents oxyethylene and PO represents oxypropylene.

[Treatment agent for elastic fibers]
The weight ratio of the base component (A) in the whole treatment agent of the present invention is preferably 40 to 99.9% by weight, more preferably 50 to 98% by weight, further preferably 70 to 95% by weight, and 80 to 90% by weight. % Is particularly preferred. When the amount is less than 40% by weight, the solubility of the component (B) in the base component (A) is lowered, and the component (B) does not uniformly adhere to the elastic yarn, and falls off in post-processing, resulting in scum, May decrease.

  In the present invention, the weight ratio of the dialkylsulfosuccinic acid ester salt (C) to 100 parts by weight of the component (B) is 20 to 2000 parts by weight, preferably 30 to 1800 parts by weight, more preferably 40 to 1600 parts by weight. Preferably, 50 to 1500 parts by weight is more preferable, and 75 to 1000 parts by weight is particularly preferable. If it is less than 20 parts by weight or more than 2000 parts by weight, excellent antistatic property and unwinding property after high temperature storage cannot be obtained. When it is 75 to 1000 parts by weight, an effect that the unraveling property after high-temperature storage is hardly lowered is obtained. The reason for this is that when the component (B) and the component (C) are used in an appropriate ratio, they are sufficiently effective to prevent penetration into the fiber by salt exchange or the like even after high-temperature storage. ing. On the other hand, when the above components are used alone, or when either one of them is excessively used, these components penetrate into the fiber by being exposed to a high temperature, so that a sufficient effect is obtained. Estimated to disappear.

  In the present invention, the weight ratio of the dialkylsulfosuccinic acid ester salt (C) to 100 parts by weight of the base component (A) is preferably 0.01 to 20 parts by weight, more preferably 0.05 to 10 parts by weight. 0.1-8 parts by weight is more preferable, 0.25-5 parts by weight is particularly preferable, and 0.5-3 parts by weight is most preferable. If the amount is less than 0.01 part by weight, the distribution of the dialkylsulfosuccinic acid ester salt (C) on the fiber surface may be uneven and the intended effect may not be obtained. If the amount exceeds 20 parts by weight, the dialkyl on the fiber surface may not be obtained. The abundance of the sulfosuccinic acid ester salt (C) may become excessive and may cause scum by dropping during the post-processing step.

  When the elastic fiber treatment agent contains the other component (D), from the viewpoint of maintaining fluidity when using the treatment agent, the weight ratio of the other component (D) in the entire elastic fiber treatment agent is: Preferably, it is 0.01 to 15 weight%, More preferably, it is 0.1 to 10 weight%, More preferably, it is 0.5 to 5 weight%.

As for the processing agent of this invention, 3-100 mm < ² > / s is preferable normally at 30 degreeC, 5-50 mm < ² > / s is more preferable, 8-20 mm < ² > / s is further more preferable. If it is less than 3 mm ² / s, volatilization of the treating agent may be a problem, and if it exceeds 100 mm ² / s, the smoothness may be inferior.

There is no limitation in particular about the method of manufacturing the processing agent for elastic fibers of this invention, A well-known method is applicable. The processing agent for elastic fibers is produced by adding and mixing the above-described constituent components in an arbitrary order.
The processing agent for elastic fibers containing a metal salt of a higher fatty acid may be produced by mixing a metal salt of a higher fatty acid that has already been pulverized with the base component. It may be produced by pulverizing to a predetermined average particle diameter using a conventionally known wet pulverizer such as a type bead mill, a horizontal bead mill, a colloid mill, a jet mill, or a sand grinder. At the time of pulverizing the metal salt of the higher fatty acid, a dispersion aid described in the conventionally known JP-A Nos. 10-2559577 and 2000-328459 may be used.

[Elastic fiber]
The elastic fiber of the present invention is obtained by applying the treatment agent of the present invention to an elastic fiber main body. The adhesion ratio of the elastic fiber treatment agent to the entire elastic fiber is preferably 0.1 to 15% by weight, more preferably 0.5 to 10% by weight. If it is less than 0.1% by weight, the effect of the present invention is not sufficient, and if it exceeds 15% by weight, it is uneconomical. There are no particular limitations on the application method, and a known method can be employed.

  The elastic fiber (elastic fiber body) of the present invention is a fiber having elasticity using polyether polyurethane, polyester polyurethane, polyether ester elastomer, polyester elastomer, polyethylene elastomer, polyamide elastomer, etc., and its elongation is usually 300% or more.

  The elastic fiber of the present invention is composed of polyurethane or polyurethane urea obtained by reacting PTMG or polyester diol with an organic diisocyanate and then extending the chain with 1,4 butanediol, ethylenediamine, propylenediamine, pentanediamine or the like. Can be mentioned. For example, a polyurethane urea elastic fiber is prepared by preparing polytetramethylene glycol (PTMG) having a molecular weight of 1000 to 3000 and diphenylmethane diisocyanate (MDI), and PTMG / MDI = 1/2 to 1 / 1.5 (molar ratio). A 20 to 40% solution of a polyurethane urea polymer obtained by reacting in a solvent such as acetamide or dimethylformamide and chain-extending with a diamine such as ethylenediamine or propylenediamine is spun at a spinning speed of 400 to 1200 m / min by dry spinning. Can be manufactured. The adaptive fineness of the elastic fiber body is not particularly limited.

  The elastic fiber body of the present invention may contain an inorganic substance such as titanium oxide, magnesium oxide, hydrotalcite, zinc oxide. 1 type (s) or 2 or more types may be used for an inorganic substance.

  When the elastic fiber body contains an inorganic substance, the uniform unwinding property may be poor, but the uniform unwinding property can be improved by applying the treatment agent of the present invention to the elastic fiber body. Therefore, the processing agent for elastic fibers of the present invention can be suitably used when the elastic fiber main body contains an inorganic substance. The content of the inorganic substance in the elastic fiber body is not particularly limited, but is preferably 0.01 to 5% by weight, and more preferably 0.1 to 3% by weight.

  As an application of the elastic fiber of the present invention, it can be used as a fabric by processing yarn such as covering yarn such as CSY, single covering, PLY and air covering, circular knitting, tricot and the like. In addition, using these processed yarns and fabrics, products that require elasticity such as stockings, socks, underwear and swimwear, and outerwear such as jeans and suits are given elasticity for comfort. Also used for purposes. More recently, it has been applied to disposable diapers.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention concretely, this invention is not limited to the Example described here. Note that “percent (%)” and “parts” shown in the following examples indicate “% by weight” and “parts by weight” unless otherwise specified. In Examples and Comparative Examples, evaluation of each characteristic of the elastic fiber treatment agent was performed according to the following method.

[Method for evaluating the treatment agent]
(Acid value)
Samples dissolved in a solvent such as isopropyl alcohol, xylene / isopropyl alcohol (1/1) mixture, etc., were used with 0.1N potassium hydroxide ethylene glycol isopropyl alcohol solution using an automatic potentiometric titrator (COM-900 manufactured by Hiranuma). Then, potentiometric titration was performed, and the titer (ml) at the end point of neutralization was measured, and the acid value was calculated from Equation (1). The acid value is represented by the number of mg of KOH required to neutralize 1 g of the sample.
Acid value (KOHmg / g) = (A × F × 5.61) / W Formula (1)
(In Formula (1), A = titer (ml), F = 0.1 N potassium hydroxide titer, W = sample weight (g))

(Amine number)
A sample dissolved in a solvent such as isopropyl alcohol or xylene / isopropyl alcohol (1/1) is mixed with 0.1N-HCl ethylene glycol / isopropyl alcohol solution using an automatic potentiometric titrator (COM-900 manufactured by Hiranuma). Potentiometric titration was performed to measure the end point titration (ml), and the amine value was calculated from the following formula (2). The amine value is expressed in mg of KOH equivalent to HCl required to neutralize 1 g of the sample.
Amine value (KOHmg / g) = (A × F × 5.61) / W Formula (2)
(In Formula (2), A = titer (ml), F = 0.1N-HCl titer, W = sample weight (g))

[Roller static electricity generation evaluation method]
In FIG. 1, the fiber cheese (1) to which the treatment agent is applied is set on the unwinding side of the unwinding speed ratio measuring machine, rotated at a peripheral speed of 50 m / min, and at 2 cm above the cheese, the Kasuga potential difference With the measuring device (2), the generated static electricity 1 hour after the start of rotation is measured.
In addition, “◯” was accepted based on the following evaluation criteria.
○: The amount of static electricity generated before high-temperature storage is less than 1 kV, and the difference between the amount of static electricity generated before high-temperature storage and the amount of static electricity generated after high-temperature storage is less than 1 kV (good)
×: Other than above (defect)

[Evaluation method of unraveling speed ratio]
In FIG. 2, the fiber cheese (3) to which the treatment agent is applied is set on the unwinding side of the unwinding speed ratio measuring machine, and the paper tube (4) is set on the winding side. After setting the winding speed to a constant speed, the rollers (5) and (6) are started simultaneously. In this state, since the tension is hardly applied to the yarn (7), the yarn is stuck on the cheese and does not leave, so the unwinding point (8) is in the state shown in FIG. By changing the unwinding speed, the unwinding point (8) of the yarn (7) from the cheese changes, so the unwinding speed is set so that this point coincides with the contact point (9) between the cheese and the roller. The unraveling speed ratio is obtained by Equation (3). The smaller this value is, the better the unpacking property is.
Moreover, the above evaluation criteria set ○ or more as acceptable.
A: The difference between the unwinding speed ratio before high-temperature storage and the unwinding speed ratio after high-temperature storage is less than 5 (very good)
○: The difference between the unwinding speed ratio before high-temperature storage and the unwinding speed ratio after high-temperature storage is 5 or more and less than 30 (good)
Δ: The difference between the unwinding speed ratio before high-temperature storage and the unwinding speed ratio after high-temperature storage is 30 to less than 50 (somewhat poor)
×: The difference between the unwinding speed ratio before high-temperature storage and the unwinding speed ratio after high-temperature storage is 50 or more (defect)
Formula (3)
Unwinding speed ratio (%) = (winding speed−unwinding speed) ÷ unwinding speed × 100

[Knitting tension measurement method]
In FIG. 3, the elastic yarn (11) vertically taken from the cheese (10) is passed through the compensator (12), the roller (13), and the roller (16) attached to the U gauge (15) via the knitting needle (14). And connected to a speedometer (17) and a winding roller (18). The rotational speed of the take-up roller is adjusted so that the traveling speed of the speedometer (17) becomes a constant speed (for example, 10 m / min, 100 m / min), and the knitting tension at that time is taken up by the take-up roller. Is measured with a U gauge (15), and the friction (g) between the fibers / knitting needles is measured.
The lower the knitting tension, the lower the fiber / metal friction, and the better the process passability in the subsequent process.

[Friction coefficient measurement method between fibers]
In FIG. 4, a monofilament of elastic fiber to which a treatment agent is applied is taken about 50 to 60 cm, a load T1 (19) is suspended at one end, and the other is attached to the U gauge (21) via a roller (20). The ends are pulled at a constant speed (for example, 3 cm / min), the secondary tension T2 at that time is measured with a U gauge (21), and the inter-fiber friction coefficient is obtained by Equation (4).
Formula (4)
Coefficient of friction between fibers = 1 / θ · ln (T2 / T1)
(In Formula (4), θ = 2π, ln = natural logarithm, T1 is 1 g per 22 dtex)

[Cheese cake shape evaluation method]
It was visually confirmed whether or not the cocoon shape of the cheese (rolling amount 400 g) to which the treating agent for evaluation was applied had crumbs such as bulges and Ayado.

[Fablow adsorption test method]
In FIG. 5, the elastic yarn is taken out from the cheese (22) at a speed of 20 m / min, passed through the compensator (23), passed through the roller (24), passed through the fluff sucking port (25), and taken up by the winding roller (26). Wind up in minutes. The cotton yarn (27) is wound from the guide (28) through the roller (29) and the knitting needle (30) by the winding roller (31) at a speed of 80 m / min. Cotton is generated by rubbing the cotton yarn between the roller (29) and the knitting needle (30) with one twist. The weight of the fluff accumulated at the yarn suction port when the elastic fiber is run for 60 minutes is measured. Elastic fibers and cotton yarns were conditioned for 3 days in an atmosphere of 20 ° C. and 45% RH. The measurement atmosphere was 20 ° C. and 45% RH. The yarn suction port has a diameter of 0.2 mm, a length of 10 mm, and the material thereof is alumina.
The smaller the fluff adsorption amount, the lower the yarn breakage occurrence frequency and the cleaning work frequency in the processing step where the fluff is generated, such as during the production of covering yarn, and the better.

[Skin disorder test]
2% by weight of each treatment agent is dissolved in acetone and dipped in Japanese pharmacopoeia gauze. The gauze is left to dry for 30 minutes, then cut into 1.5 cm sides and affixed to the back of the upper arm and kept for 48 hours. It peeled 48 hours afterward, and determined based on Table 1 at intervals for 30 minutes. The determination was scored as shown in the table, and the average reaction intensity of each treatment agent was calculated by multiplying these numerical values by the number of subjects who showed it and dividing by the total number of subjects.
Moreover, the above evaluation criteria set ○ or more as acceptable.
○: 0 to less than 1 (good)
Δ: 1 point or more and less than 2 points (slightly poor)
×: 2 points or more (defect)

<Fiber tensile strength retention>
Measurement was performed according to JIS1013.

(Examples 1-32 and Comparative Examples 1-10)
<Adjustment of spinning dope>
A polytetramethylene ether glycol having a number average molecular weight of 1800 is reacted with 4,4′-diphenylmethane diisocyanate in a molar ratio of 1: 2, and then chain extension is performed using a solution of 1,2-diaminopropane in N, N′-dimethylacetamide. As a result, an N, N′-dimethylacetamide solution having a polymer concentration of 30% was obtained. The viscosity at 30 ° C. was 1500 mPaS.

The obtained spinning dope was discharged from a spinneret having four pores into a N ₂ gas stream at 195 ° C. for dry spinning. 6% by weight of the elastic fiber treating agent was applied to each running yarn (elastic fiber main body) being spun by an oiling roller. Therefore, 5.66% by weight of the elastic fiber treatment agent was applied to the entire elastic fiber. Thereafter, the elastic fibers treated with the elastic fiber treating agent were each wound around a bobbin at a speed of 500 m / min to obtain 77 dtex multifilament cheese (rolling amount: 400 g). It evaluated by the said evaluation method using the obtained cheese, respectively. The results are shown in Tables 11 and 12.

For the evaluation after the high-temperature storage treatment, the obtained cheese was left in an atmosphere of 60 ° C. and 80% RH for 10 days and then left in an atmosphere of 20 ° C. and 45% RH for 48 hours for evaluation. did.
<Preparation of elastic fiber treatment agent>
Those containing no higher fatty acid metal salt (D-2, magnesium stearate) were mixed with each component shown in Tables 2 to 10 and stirred at 20 to 40 ° C. for 60 minutes to obtain a higher fatty acid metal salt (D- 2 and magnesium stearate) are mixed and stirred, and then the higher fatty acid metal salt is pulverized using the wet pulverizer described above for the elastic fibers of Examples 1-32 and Comparative Examples 1-12. Each treatment agent was obtained. The components used in Examples and Comparative Examples are shown in Tables 2 to 8, and the formulations formulated in Examples and Comparative Examples are shown in Tables 9 and 10.

As can be seen from Tables 11 and 12, in Examples 1 to 32, at least one base component (A) selected from silicone oil, mineral oil and ester oil, organic phosphate ester (B1), organic amine (B2) ) And an organic phosphate ester amine salt (B3) and at least one component (B) and a dialkylsulfosuccinate ester salt (C), and the dialkylsulfosuccinate based on 100 parts by weight of the component (B) Since the elastic fiber treatment agent having a weight ratio of the acid ester salt (C) of 20 to 2000 parts by weight is used, it has good antistatic and unwinding properties after high-temperature storage.
On the other hand, when the component (C) is not present (Comparative Examples 1 to 3), when the component (B) is not present (Comparative Example 8), the dialkylsulfosuccinic acid ester salt (C) with respect to 100 parts by weight of the component (B). When the weight ratio is not in the range of 20 to 2000 parts by weight (Comparative Examples 4 to 7), not the organic phosphate ester amine salt (B3) but the organic phosphate ester alkali metal salt (Comparative Examples 9 and 10) The effect of the present invention is not obtained.

The processing agent for elastic fibers of the present invention is suitably used when producing elastic fibers. The elastic fiber of the present invention is used for products that require stretchability.
Applied to industrial synthetic fiber.

DESCRIPTION OF SYMBOLS 1 Elastic fiber cheese 2 Kasuga-type potentiometer 3 Cheese 4 Winding paper tube 5 Roller 6 Roller 7 Running yarn 8 Unwinding point 9 Cheese and roller contact 10 Elastic fiber cheese 11 Yarn 12 Compensator 13 Roller 14 Knitting needle 15 U Gauge 16 Roller 17 Speedometer 18 Winding Roller 19 Load 20 Roller 21 U Gauge 22 Elastic Fiber Cheese 23 Compensator 24 Roller 25 Cotton Cotton Yarn 26 Elastic Fiber Winding Roller 27 Cotton Yarn 28 Guide 29 Roller 30 Knitting Needle 31 Cotton yarn winding roller

Claims (9)

At least one base component (A) selected from silicone oil, mineral oil and ester oil, and at least 1 selected from organic phosphate ester (B1), organic amine (B2) and organic phosphate ester amine salt (B3) Containing a component (B) as a seed and a dialkylsulfosuccinate ester salt (C),
The processing agent for elastic fibers whose weight ratio of the said dialkyl sulfosuccinic acid ester salt (C) with respect to 100 weight part of said components (B) is 20-2000 weight part. The processing agent for elastic fibers according to claim 1, wherein the organic phosphate ester (B1) is represented by the following general formula (1).

(In the formula, m is a number of ¹ to 2. R ¹ is an alkyl group or an alkenyl group having 6 to 24 carbon atoms. A ¹ O is an oxyalkylene group having 2 to 4 carbon atoms. A is 0. When the number of R ¹ and (A ¹ O) _a is two in the molecule, they may be the same or different from each other. The elastic fiber treatment agent according to claim 1 or 2, wherein the organic amine (B2) is represented by the following general formula (2).

(Wherein R ² and R ³ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ² O) _b. H represents A ² O is an oxyalkylene group having 2 to 4 carbon atoms, b is a number having 1 to 30, R ⁴ is an alkyl group having 1 to 18 carbon atoms, and an alkenyl group having 2 to 18 carbon atoms. A group, an alkanol group having 1 to 18 carbon atoms or (A ³ O) _c H. A ³ O is an oxyalkylene group having 2 to 4 carbon atoms, and c is a number from 1 to 30.) The elastic fiber processing agent in any one of Claims 1-3 by which the said organic phosphate ester amine salt (B3) is represented by following General formula (3).

(In the formula, n is a number of 1 to 2. R ⁵ is an alkyl or alkenyl group having 6 to 24 carbon atoms. A ⁴ O is an oxyalkylene group having 2 to 4 carbon atoms. D is 0. When there are two R ⁵ and (A ⁴ O) _{d in the} molecule, they may be the same or different from each other, and M ¹ is HNR ⁶ R ⁷ R ^8. R ⁶ and R ⁷ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁵ O). _e represents H. A ⁵ O is an oxyalkylene group having 2 to 4 carbon atoms, e is a number having 1 to 30. R ⁸ is an alkyl group having 1 to 18 carbon atoms, and 2 to 18 carbon atoms. alkenyl group, .A ⁶ O representing the alkanol group or ^(a 6 _{O) f} H having 1 to 18 carbon atoms is from 2 carbon atoms Which is the oxyalkylene group .f is the number of 1 to 30.) The processing agent for elastic fibers according to any one of claims 2 to 4, wherein R ¹ and R ⁵ are branched alkyl groups having 2 or more branches. The processing agent for elastic fibers according to any one of claims 1 to 5, wherein the dialkylsulfosuccinic acid ester salt (C) is represented by the following general formula (4).

(In the formula, R ⁹ and R ¹⁰ each independently represents an alkyl group having 1 to 30 carbon atoms or an alkenyl group having 2 to 30 carbon atoms. M ² represents a monovalent or divalent metal ion and R ¹¹ NR. ¹² R ¹³ represents one selected from R ¹⁴ and R ^{11 to} R ¹⁴ each independently represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkanol group having 1 to 18 carbon atoms, or (A ⁷ O) _g. Represents H. A ⁷ O represents an oxyalkylene group having 2 to 4 carbon atoms, g represents a number of 1 to 30, and q represents a valence of M ² .   The processing agent for elastic fibers according to any one of claims 1 to 6, wherein the dialkylsulfosuccinic acid ester salt (C) is 0.01 to 20 parts by weight with respect to 100 parts by weight of the base component (A).   The processing agent for elastic fibers according to any one of claims 1 to 7, further comprising an amino-modified silicone and / or a polyether-modified silicone.   The elastic fiber with which the processing agent in any one of Claims 1-8 was provided with respect to the elastic fiber main body.

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