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WO2024014009A1 - Elastic fiber treatment agent and elastic fibers - Google Patents

Elastic fiber treatment agent and elastic fibers Download PDF

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Publication number
WO2024014009A1
WO2024014009A1 PCT/JP2022/040339 JP2022040339W WO2024014009A1 WO 2024014009 A1 WO2024014009 A1 WO 2024014009A1 JP 2022040339 W JP2022040339 W JP 2022040339W WO 2024014009 A1 WO2024014009 A1 WO 2024014009A1
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WO
WIPO (PCT)
Prior art keywords
treatment agent
elastic fibers
elastic
carbon atoms
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/040339
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French (fr)
Japanese (ja)
Inventor
洋平 鈴木
武志 西川
康平 小田
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Takemoto Oil and Fat Co Ltd
Original Assignee
Takemoto Oil and Fat Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Takemoto Oil and Fat Co Ltd filed Critical Takemoto Oil and Fat Co Ltd
Priority to CN202280006129.6A priority Critical patent/CN117693618A/en
Publication of WO2024014009A1 publication Critical patent/WO2024014009A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
    • D06M13/03—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons with unsaturated hydrocarbons, e.g. alkenes, or alkynes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
    • D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain

Definitions

  • the present invention relates to an elastic fiber treatment agent containing a monoester compound (A) having a specific chemical structure, and an elastic fiber to which such an elastic fiber treatment agent is attached.
  • Elastic fibers such as polyurethane elastic fibers have stronger inter-fiber adhesion than other synthetic fibers, so when the elastic fibers are spun, wound into a package, and then pulled out from the package for processing. In addition to being difficult to unwind stably from the package, there was also the problem that the package yarn would collapse if the spun elastic fibers had poor shape retention. In addition, when the abrasiveness of the treatment agent for elastic fibers is high, thread breakage occurs, and there are also problems with the stability of the formulation of the treatment agent for elastic fibers. In order to solve these problems, a treatment agent for elastic fibers containing a smoothing agent such as hydrocarbon oil that improves the smoothness of elastic fibers has been proposed.
  • a smoothing agent such as hydrocarbon oil
  • a base component a treatment agent for elastic fibers containing 0.01 to 30% by mass of a nonionic surfactant with an HLB of 3 to 15 (Patent Document 1), a base component, water, and a hydrocarbon having a carbon number of 1 to 15.
  • a treatment agent for elastic fibers containing 0.1 to 20% by mass of a lower alcohol having a group or an alkylene oxide adduct of the lower alcohol and 0.1 to 30% by mass of an emulsifier (Patent Document 2), polyoxyethylene skeleton
  • Patent Document 3 oil agents for elastic fibers containing polyoxyalkylene ether-modified polysiloxane with a content of 20 to 80% by mass in the molecule
  • the present invention provides a processing agent for elastic fibers that has excellent friction properties on elastic fibers, good unwinding properties after winding, good winding shape during spinning, and excellent formulation stability during long-term storage.
  • the object of the present invention is to provide elastic fibers to which such an elastic fiber treatment agent is attached.
  • the present inventor has developed a product that contains a monoester compound (A) having a specific chemical structure and a silicone oil (B), and contains mineral oil (C) as an optional component.
  • A monoester compound
  • B silicone oil
  • C mineral oil
  • a treatment agent for elastic fibers which contains the following monoester compound (A) and silicone oil (B), and contains mineral oil (C) as an optional component.
  • Monoester compound (A) An ester compound having one ester bond formed by condensation of a monovalent or polyvalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms.
  • the monoester compound (A) is 1. Contains an ester compound having one ester bond formed by condensation of a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms.
  • the monoester compound (A) is 1. Contains an ester compound having one ester bond formed by condensation of a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 carbon number.
  • the monoester compound (A) is 1. Contains an ester compound having one ester bond formed by condensation of a monohydric aliphatic carboxylic acid having 8 to 18 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms.
  • the organic phosphate ester salt (D) Containing the organic phosphate ester salt (D) in a proportion of 0.05 to 20% by mass based on the total mass of the elastic fiber treatment agent.
  • the organic phosphate ester salt (D) is 5.
  • the silicone oil (B) 1. Contained in a proportion of 40% by mass or less based on the total mass of the elastic fiber processing agent.
  • the treatment agent for elastic fibers of the present invention has excellent friction properties on elastic fibers, so it is useful without causing yarn breakage.
  • the elastic fiber treatment agent of the present invention has excellent unwinding properties and winding shape, so there is no resistance to pulling out the yarn from the package, and it is possible to stably unwind the yarn without causing problems such as yarn breakage. In addition to this, the thread will not collapse after being wound into the package.
  • the treatment agent for elastic fibers of the present invention has excellent formulation stability, it is useful because separation or precipitation does not occur during transportation or storage of the treatment agent for elastic fibers.
  • the treatment agent for elastic fibers of the present invention is excellent in all of friction properties, unwinding properties, winding shape, and formulation stability, and is very useful.
  • the elastic fiber treatment agent of the present invention has one ester bond formed by condensation of a monovalent or polyvalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. It contains a monoester compound (A) as an essential component.
  • a monoester compound (A) as an essential component.
  • adding an ester compound to a treatment agent for elastic fibers increases friction properties, so ester compounds have not been actively used as a component of treatment agents for elastic fibers. .
  • the monoester compound (A) having the above-mentioned specific chemical structure as an essential component of the treatment agent for elastic fibers, it has the effect of lowering the friction properties, as well as improving the unwinding and winding properties.
  • the present invention has been completed based on the discovery that it exhibits excellent effects in terms of shape and formulation stability. If the monoester compound (A) in the present invention has a chemical structure having one ester bond, the monovalent or polyvalent aliphatic carboxylic acid may be branched, linear, or substituted. There are no particular restrictions on the presence or absence of groups.
  • the term "may have a substituent” means that the monovalent or polyvalent aliphatic carboxylic acid may have any other bond or substituent, such as an amide bond, an ether bond, It may have bonds such as sulfide bonds, disulfide bonds, urethane bonds, and groups such as epoxy groups, nitro groups, cyano groups, ketone groups, formyl groups, acetal groups, thioacetal groups, and sulfonyl groups.
  • the monoester compound (A) in the present invention is an ester bond formed by condensation from a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms, that is, methanol and/or ethanol.
  • An ester compound having one ester bond is preferably an ester compound having one ester bond formed by condensation of a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 carbon number, that is, methanol. It is more preferably a compound and has one ester bond formed from a monovalent aliphatic carboxylic acid having 8 to 18 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms, that is, methanol and/or ethanol. More preferably, it is an ester compound.
  • Examples of monovalent or polyvalent aliphatic carboxylic acids having 5 to 24 carbon atoms include valeric acid (carbon number: 5), caproic acid (carbon number: 6), sorbic acid (carbon number: 6), and enanthic acid. (Number of carbons: 7), Caprylic acid (Number of carbons: 8), Pelargonic acid (Number of carbons: 9), Capric acid (Number of carbons: 10), Lauric acid (Number of carbons: 12), Myristic acid (Number of carbons: 14) ), palmitic acid (carbon number: 16), margaric acid (carbon number: 17), stearic acid (carbon number: 18), oleic acid (carbon number: 18), linoleic acid (carbon number: 18), linolenic acid ( Monosaturated/unsaturated aliphatic carboxylic acids such as carbon number: 18), arachidonic acid (carbon number: 20), eicosapentaic acid (carbon number:
  • Monohydric alcohol having 1 to 2 carbon atoms means methanol and ethanol.
  • the above-mentioned monovalent or polyvalent aliphatic carboxylic acid and monohydric alcohol having 1 to 2 carbon atoms may each be used alone or in a mixture of two or more.
  • the treatment agent for elastic fibers of the present invention preferably contains the monoester compound (A) in a range of 10 to 95% by mass, and preferably in a range of 10 to 93% by mass, based on the total mass of the treatment agent. More preferably, the content is in the range of 10 to 90% by mass.
  • one type of monoester compound (A) may be used alone, or two or more types of monoester compounds (A) may be used in an appropriate combination.
  • the treatment agent for elastic fibers of the present invention contains silicone oil (B) as an essential component together with the monoester compound (A).
  • the treatment agent for elastic fibers of the present invention exhibits excellent effects in all aspects of friction properties, unwinding properties, winding shape, and formulation stability by using silicone oil (B) in combination with the above monoester compound (A). It is something that makes you Examples of the silicone oil (B) include dimethyl silicone, phenyl-modified silicone, amino-modified silicone, amide-modified silicone, polyether-modified silicone, aminopolyether-modified silicone, alkyl-modified silicone, alkylaralkyl-modified silicone, and alkylpolyether-modified silicone.
  • silicone oils (B) commercially available products defined by kinematic viscosity and the like may be appropriately adopted.
  • the kinematic viscosity is set appropriately, but the kinematic viscosity at 25° C. is preferably in the range of 2 to 100 mm 2 /s, more preferably 5 to 70 mm 2 /s, even more preferably 5 to 50 mm 2 /s.
  • the treatment agent for elastic fibers of the present invention preferably contains silicone oil (B) in a range of 1 to 80% by mass, and preferably in a range of 1 to 60% by mass, based on the total mass of the treatment agent. is more preferable, and it is even more preferable that the content is in the range of 1 to 40% by mass.
  • silicone oil (B) may be used alone, or two or more types of silicone oil (B) may be used in an appropriate combination.
  • the treatment agent for elastic fibers of the present invention contains mineral oil (C) as an optional component.
  • the mineral oil (C) include aromatic hydrocarbons, paraffinic hydrocarbons, naphthenic hydrocarbons, and the like. More specifically, examples include spindle oil and liquid paraffin. As these mineral oils, one or more commercially available products defined by viscosity and the like may be used as appropriate.
  • the treatment agent for elastic fibers of the present invention contains the monoester compound (A), silicone oil (B), and mineral oil (C) in an amount of 70 to 100% by mass based on the total mass of the treatment agent. The content is preferably in the range of 73 to 100% by mass, more preferably in the range of 75 to 100% by mass. In the elastic fiber treatment agent of the present invention, one type of mineral oil (C) may be used alone, or two or more types of mineral oil (C) may be used in an appropriate combination.
  • the treatment agent for elastic fibers of the present invention further contains an organic phosphate ester salt (D).
  • the treatment agent for elastic fibers of the present invention preferably contains an organic phosphate ester salt (D) in a range of 0 to 30% by mass based on the total mass of the treatment agent, and preferably in a range of 0.01 to 25% by mass.
  • the content is more preferably within a range of 0.05 to 20% by mass, and even more preferably within a range of 0.05 to 20% by mass.
  • the organic phosphate ester salt (D) is a divalent metal salt.
  • organic phosphate ester salt (D) a phosphate ester salt having an alkyl group having 8 to 22 carbon atoms in the molecule, and a polyoxyalkylene group composed of an oxyalkylene group having 2 to 4 carbon atoms and a carbon number
  • it is at least one selected from phosphoric acid ester salts having 8 to 22 alkyl groups in the molecule.
  • one type of organic phosphate ester salt (D) may be used alone, or two or more types of organic phosphate ester salts (D) may be used in an appropriate combination. You can.
  • the treatment agent for elastic fibers of the present invention further contains a hydroxy compound (E).
  • the hydroxy compound (E) includes an aliphatic alcohol having 8 to 24 carbon atoms, and an alkylene oxide having 2 to 4 carbon atoms added to 1 mol of aliphatic alcohol having 8 to 24 carbon atoms at a ratio of 1 to 100 mol. It is preferable that it is at least one selected from alkylene oxide adducts.
  • the aliphatic alcohol having 8 to 24 carbon atoms is not particularly limited as to the presence or absence of an unsaturated bond, and may be an alcohol having a linear or branched hydrocarbon group, or an alcohol having a cyclic cyclo ring.
  • the branching position is not particularly limited, and for example, the carbon chain may be branched at the ⁇ position, or the carbon chain may be branched at the ⁇ position. You can. Moreover, it may be a primary alcohol or a secondary alcohol.
  • aliphatic alcohols include octanol, nonanol, decanol, undecanol, lauryl alcohol, tridecyl alcohol, myristyl alcohol, pentadecyl alcohol, cetanol, stearyl alcohol, eicosanol, behenyl alcohol, tetracosanol, oleyl alcohol, and 12-eicosyl alcohol.
  • Alcohol hexadecenyl alcohol, eicocenyl alcohol, octadecenyl alcohol, docosyl alcohol, isododecyl alcohol, isotridecyl alcohol, isomyristyl alcohol, isohexadecyl alcohol, isostearyl alcohol, isotetracosanol, etc. monohydric aliphatic alcohols and the like.
  • alkylene oxide adduct in which an alkylene oxide having 2 to 4 carbon atoms is added at a ratio of 1 to 100 mol to 1 mol of aliphatic alcohol having 8 to 24 carbon atoms
  • examples of the alkylene oxide include ethylene oxide and propylene oxide. , butylene oxide, and the like.
  • the number of moles of alkylene oxide added per mole of aliphatic alcohol is preferably 1 to 100 moles, more preferably 1 to 50 moles, and even more preferably 1 to 30 moles. Note that the number of moles of alkylene oxide added indicates the number of moles of alkylene oxide per mole of aliphatic alcohol in the raw material.
  • the treatment agent for elastic fibers of the present invention preferably contains the hydroxy compound (E) in a range of 0 to 30% by mass, and preferably in a range of 0.01 to 20% by mass based on the total mass of the treatment agent. It is more preferable that the content be 0.05 to 10% by mass.
  • one type of hydroxy compound (E) may be used alone, or two or more types of hydroxy compounds (E) may be used in an appropriate combination.
  • the treatment agent for elastic fibers of the present invention may contain, as other components (F), an antistatic agent, an antifoaming agent, an antioxidant, a preservative, a rust preventive, and the like.
  • the amount of other component (F) used in combination can be determined within a range that does not impair the effects of the present invention.
  • the treatment agent for elastic fibers of the present invention contains a monoester compound (A) having a specific chemical structure and a silicone oil (B), and optionally includes mineral oil (C), organic phosphate ester salt (D), By containing the hydroxy compound (E), excellent effects are exhibited in all aspects of friction properties, unwinding properties, rolled shape, and formulation stability.
  • a monoester compound (A) having a specific chemical structure and a silicone oil (B)
  • E organic phosphate ester salt
  • excellent effects are exhibited in all aspects of friction properties, unwinding properties, rolled shape, and formulation stability.
  • ester compounds known to increase the friction properties of elastic fiber treatment agents by blending a monoester compound (A) with a specific chemical structure, the effect of reducing the friction properties is exhibited. It has a remarkable effect.
  • the silicone oil (B) in the treatment agent for elastic fibers of the present invention exhibits excellent effects in all aspects of friction properties, unwinding properties, winding shape, and formulation stability when used in combination with the above-mentioned ester compound (A). It is something.
  • the organic phosphate ester salt (D), which is an optional component, has an even more excellent effect on unwinding properties when mixed with it.In particular, when the organic phosphate ester salt (D) is mixed with a divalent metal salt, the unwinding property is improved.
  • the hydroxy compound (E) exhibits an even more excellent effect in terms of formulation stability by its blending.
  • elastic fibers to which the elastic fiber treatment agent of the present invention is attached are not particularly limited, but include polyester elastic fibers, polyamide elastic fibers, polyolefin elastic fibers, polyurethane elastic fibers, and the like. Among these, polyurethane elastic fibers are preferred. In such a case, the effect of the present invention can be more effectively expressed.
  • the amount of the elastic fiber treatment agent of the present invention attached to the elastic fiber is not particularly limited, but from the viewpoint of further improving the effects of the present invention, it is preferably attached in a range of 0.1% by mass or more and 10% by mass or less. .
  • the method for producing elastic fibers according to the present invention is obtained by supplying elastic fibers with the treatment agent for elastic fibers according to the present invention.
  • a method of lubricating the treatment agent it is preferable to apply the treatment agent to the elastic fibers in the spinning process of the elastic fibers by a neat lubricating method without diluting the treatment agent.
  • known methods such as a roller lubrication method, a guide lubrication method, a spray lubrication method and the like can be applied.
  • the oil supply roller is generally located between the spinneret and the winding traverse, and can also be applied to the manufacturing method of the present invention.
  • the method for producing the elastic fiber itself used in the present invention is not particularly limited, and can be produced by any known method. Examples include wet spinning, melt spinning, and dry spinning. Among these, the dry spinning method is preferably applied from the viewpoint of superior quality of elastic fibers and production efficiency.
  • C Mineral oil (viscosity at 40°C using a redwood viscometer is 60 seconds)
  • C-2 Mineral oil (viscosity at 40°C using a redwood viscometer is 100 seconds)
  • D-1 Magnesium salt of isooctyl phosphate
  • D-2 Calcium salt of lauryl phosphate
  • D-3 Magnesium salt of isooctadecyl phosphate
  • D-4 Phosphorus of 5 moles of ethylene oxide adduct of lauryl alcohol
  • D-5 Potassium salt of phosphate ester of 5 moles of ethylene oxide adduct of lauryl alcohol
  • D-6 Ethanolamine salt of isooctyldecyl phosphate
  • D-7 Sodium isooctadecyl phosphate salt
  • Friction coefficient is 0.20 or more and less than 0.23.
  • Friction coefficient is 0.23 or more and less than 0.26.
  • Friction coefficient is 0.26 or more and less than 0.29.
  • Friction coefficient is 0.29 or more and less than 0.32.
  • Friction coefficient is 0.32 or more.
  • a first drive roller and a first release roller that are in constant contact with the first drive roller constitute a feeding section on one side, and a winding section is configured with a second drive roller and a second release roller that are in constant contact with the same on the opposite side, The winding section was installed horizontally at a distance of 20 cm from the sending section.
  • a package of dry spun polyurethane elastic fibers immediately after spinning to which each treatment agent had been applied was attached to the first drive roller, and the spool was unwound to a thickness of 2 mm and wound onto the second drive roller.
  • the winding speed of the polyurethane elastic fiber to the second drive roller was gradually increased from 50 m/min.
  • the elastic fibers were forcibly unwound from the package.
  • the winding speed V (m/min) at the point when the polyurethane elastic fibers stop dancing between the sending part and the winding part is measured, and the unwinding performance ( %) and evaluated based on the following criteria.
  • Examples 1 to 39 which are specific examples of the treatment agent for elastic fibers of the present invention, have (1) friction properties, (2) unwinding properties, (3) winding shape, and (4) All evaluation results of formulation stability ranged from particularly good ( ⁇ ) to no problem for operation ( ⁇ ), confirming that it is extremely useful.
  • the elastic fiber processing agents of Comparative Examples 1 to 14 and 16 containing an ester compound different from the monoester compound (A) of the present invention were In detail, Comparative Examples 1, 3 to 7 are based on Example 2, Comparative Example 2 is based on Example 12, Comparative Example 8 is based on Example 25, Comparative Example 9 is based on Example 34, and Comparative Example 10 is based on Example 2.
  • Comparative Example 11 with Example 13, Comparative Example 12 with Example 26, Comparative Example 13 with Example 37, and Comparative Example 14 with Example 35 especially (1) friction properties. It was also revealed that (2) unwinding property, (3) winding shape, and (4) formulation stability were also inferior. Furthermore, Comparative Example 15, which does not contain the monoester compound (A) of the present invention, is particularly inferior in (1) friction properties, (2) unwinding properties, and (3) poor winding shape. It became clear.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The present invention addresses the problem of providing: an elastic fiber treatment agent that has excellent formulation stability relative to long-term storage and gives elastic fibers excellent friction, favorable unwindability after winding, and a favorable winding shape when spun; and elastic fibers to which the elastic fiber treatment agent is adhered. The present invention provides an elastic fiber treatment agent that is characterized by containing (A) a monoester compound that has a single ester linkage and is formed by condensing a C5–24 monovalent or polyvalent aliphatic carboxylic acid and a C1–2 monovalent alcohol and (B) a silicone oil and by containing (C) a mineral oil as an optional ingredient.

Description

弾性繊維用処理剤、及び弾性繊維Treatment agent for elastic fibers and elastic fibers

　本発明は、特定の化学構造を有するモノエステル化合物（Ａ）を含有する弾性繊維用処理剤及び、かかる弾性繊維用処理剤が付着している弾性繊維に関する。 The present invention relates to an elastic fiber treatment agent containing a monoester compound (A) having a specific chemical structure, and an elastic fiber to which such an elastic fiber treatment agent is attached.

　ポリウレタン系弾性繊維等の弾性繊維は、他の合成繊維に比べて、繊維間の粘着性が強いため、弾性繊維を紡糸し、パッケージに巻き取った後、該パッケージから引き出して加工工程に供する際、パッケージから安定して解舒することが難しいだけでなく、紡糸した弾性繊維の形状保持性が低いと、パッケージの巻き糸が崩れるという問題があった。
　また、弾性繊維用処理剤の摩擦性が高いと、糸切れが発生する他、弾性繊維用処理剤の製剤安定性の課題もあった。
　これらの問題を解決するために、弾性繊維の平滑性を向上させる炭化水素油等の平滑剤を含有する弾性繊維用処理剤が提案されている。例えば、ベース成分、ＨＬＢが３～１５のノニオン界面活性剤を０．０１～３０質量％含有する弾性繊維用処理剤（特許文献１）、ベース成分と、水、炭素数１～１５の炭化水素基を有する低級アルコール、又は該低級アルコールのアルキレンオキサイド付加物を０．１～２０質量％、乳化剤を０．１～３０質量％含有する弾性繊維用処理剤（特許文献２）、ポリオキシエチレン骨格の含有量が分子中に２０～８０質量％であるポリオキシアルキレンエーテル変性ポリシロキサンを含有する弾性繊維用油剤（特許文献３）などであるが、上記の問題を全て解決する弾性繊維用処理剤は、未だ提案されていない。 Elastic fibers such as polyurethane elastic fibers have stronger inter-fiber adhesion than other synthetic fibers, so when the elastic fibers are spun, wound into a package, and then pulled out from the package for processing. In addition to being difficult to unwind stably from the package, there was also the problem that the package yarn would collapse if the spun elastic fibers had poor shape retention.
In addition, when the abrasiveness of the treatment agent for elastic fibers is high, thread breakage occurs, and there are also problems with the stability of the formulation of the treatment agent for elastic fibers.
In order to solve these problems, a treatment agent for elastic fibers containing a smoothing agent such as hydrocarbon oil that improves the smoothness of elastic fibers has been proposed. For example, a base component, a treatment agent for elastic fibers containing 0.01 to 30% by mass of a nonionic surfactant with an HLB of 3 to 15 (Patent Document 1), a base component, water, and a hydrocarbon having a carbon number of 1 to 15. A treatment agent for elastic fibers containing 0.1 to 20% by mass of a lower alcohol having a group or an alkylene oxide adduct of the lower alcohol and 0.1 to 30% by mass of an emulsifier (Patent Document 2), polyoxyethylene skeleton There are oil agents for elastic fibers containing polyoxyalkylene ether-modified polysiloxane with a content of 20 to 80% by mass in the molecule (Patent Document 3), but there are treatment agents for elastic fibers that solve all of the above problems. has not been proposed yet.

特開２００７－１００２９１号公報Japanese Patent Application Publication No. 2007-100291 特開２００３－１４７６７５号公報Japanese Patent Application Publication No. 2003-147675 特開平０９－２６８４７７号公報Japanese Patent Application Publication No. 09-268477

　本発明は、弾性繊維上での摩擦性に優れ、巻き取り後の解舒性及び紡糸時の巻き形状が良好であり、長期間保管した際の製剤安定性に優れた弾性繊維用処理剤及び、かかる弾性繊維用処理剤が付着している弾性繊維を提供することを課題としている。 The present invention provides a processing agent for elastic fibers that has excellent friction properties on elastic fibers, good unwinding properties after winding, good winding shape during spinning, and excellent formulation stability during long-term storage. The object of the present invention is to provide elastic fibers to which such an elastic fiber treatment agent is attached.

　本発明者は上記課題を解決するために鋭意研究を重ねた結果、特定の化学構造を有するモノエステル化合物（Ａ）とシリコーンオイル（Ｂ）を含有し、任意成分として鉱物油（Ｃ）を含有することにより、摩擦性、解舒性、巻き形状及び製剤安定性の全てに優れた弾性繊維用処理剤とし得ることを見出し、上記課題を解決するに至ったものである。 As a result of extensive research in order to solve the above problems, the present inventor has developed a product that contains a monoester compound (A) having a specific chemical structure and a silicone oil (B), and contains mineral oil (C) as an optional component. The inventors have discovered that by doing so, it is possible to obtain a treatment agent for elastic fibers that is excellent in all of friction properties, unwinding properties, winding shape, and formulation stability, and the above-mentioned problems have been solved.

　本発明は、具体的には次の事項を要旨とする。
１．下記のモノエステル化合物（Ａ）とシリコーンオイル（Ｂ）を含有し、任意成分として鉱物油（Ｃ）を含有することを特徴とする弾性繊維用処理剤。
　モノエステル化合物（Ａ）：炭素数５～２４の１価又は多価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成された、エステル結合を１つ有するエステル化合物。
２．前記モノエステル化合物（Ａ）が、
　炭素数５～２４の１価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成されたエステル結合を１つ有するエステル化合物を含む、１．に記載の弾性繊維用処理剤。
３．前記モノエステル化合物（Ａ）が、
　炭素数５～２４の１価の脂肪族カルボン酸と、炭素数１の１価アルコールとから縮合形成されたエステル結合を１つ有するエステル化合物を含む、１．に記載の弾性繊維用処理剤。
４．前記モノエステル化合物（Ａ）が、
　炭素数８～１８の１価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成されたエステル結合を１つ有するエステル化合物を含む、１．に記載の弾性繊維用処理剤。
５．更に、有機リン酸エステル塩（Ｄ）を含有し、
　前記弾性繊維用処理剤の全質量に対して、前記有機リン酸エステル塩（Ｄ）を０．０５～２０質量％の割合で含有する１．に記載の弾性繊維用処理剤。
６．前記有機リン酸エステル塩（Ｄ）が、
　有機リン酸エステルの２価金属塩を含む５．に記載の弾性繊維用処理剤。
７．更に、ヒドロキシ化合物（Ｅ）を含有する１．に記載の弾性繊維用処理剤。
８．前記シリコーンオイル（Ｂ）を、
　前記弾性繊維用処理剤の全質量に対して４０質量％以下の割合で含有する、１．に記載の弾性繊維用処理剤。
９．１．～８．のいずれか一項に記載の弾性繊維用処理剤が付着していることを特徴とする弾性繊維。 Specifically, the present invention has the following points.
1. A treatment agent for elastic fibers, which contains the following monoester compound (A) and silicone oil (B), and contains mineral oil (C) as an optional component.
Monoester compound (A): An ester compound having one ester bond formed by condensation of a monovalent or polyvalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms.
2. The monoester compound (A) is
1. Contains an ester compound having one ester bond formed by condensation of a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. The treatment agent for elastic fibers described in .
3. The monoester compound (A) is
1. Contains an ester compound having one ester bond formed by condensation of a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 carbon number. The treatment agent for elastic fibers described in .
4. The monoester compound (A) is
1. Contains an ester compound having one ester bond formed by condensation of a monohydric aliphatic carboxylic acid having 8 to 18 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. The treatment agent for elastic fibers described in .
5. Furthermore, it contains an organic phosphate ester salt (D),
1. Containing the organic phosphate ester salt (D) in a proportion of 0.05 to 20% by mass based on the total mass of the elastic fiber treatment agent. The treatment agent for elastic fibers described in .
6. The organic phosphate ester salt (D) is
5. Contains divalent metal salts of organic phosphate esters. The treatment agent for elastic fibers described in .
7. Furthermore, 1. containing a hydroxy compound (E). The treatment agent for elastic fibers described in .
8. The silicone oil (B),
1. Contained in a proportion of 40% by mass or less based on the total mass of the elastic fiber processing agent. The treatment agent for elastic fibers described in .
9.1. ~8. An elastic fiber to which the elastic fiber treatment agent according to any one of the above is attached.

　本発明の弾性繊維用処理剤は、弾性繊維上での摩擦性に優れているため、糸切れが発生することが無く有用である。
　また、本発明の弾性繊維用処理剤は、解舒性及び巻き形状に優れているため、パッケージからの糸の引き出しに抵抗がなく、糸切れ等の問題も生じず安定に解舒することが出来るほか、パッケージに巻き取った後の巻き糸が崩れることが無い。
　さらに、本発明の弾性繊維用処理剤は、製剤安定性に優れているため、弾性繊維用処理剤の運搬や保管の際に分離や沈殿が生じることが無く有用である。
　本発明の弾性繊維用処理剤は、摩擦性、解舒性、巻き形状及び製剤安定性の全てにおいて優れており、非常に有用である。 The treatment agent for elastic fibers of the present invention has excellent friction properties on elastic fibers, so it is useful without causing yarn breakage.
In addition, the elastic fiber treatment agent of the present invention has excellent unwinding properties and winding shape, so there is no resistance to pulling out the yarn from the package, and it is possible to stably unwind the yarn without causing problems such as yarn breakage. In addition to this, the thread will not collapse after being wound into the package.
Furthermore, since the treatment agent for elastic fibers of the present invention has excellent formulation stability, it is useful because separation or precipitation does not occur during transportation or storage of the treatment agent for elastic fibers.
The treatment agent for elastic fibers of the present invention is excellent in all of friction properties, unwinding properties, winding shape, and formulation stability, and is very useful.

＜モノエステル化合物（Ａ）＞
　本発明の弾性繊維用処理剤は、炭素数５～２４の１価又は多価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成されたエステル結合を１つ有する、モノエステル化合物（Ａ）を必須成分として含有するものである。
　一般的に、弾性繊維用処理剤にエステル化合物を配合すると、摩擦性を高めることが知られているため、弾性繊維用処理剤の成分としてエステル化合物を積極的に採用することはなされていなかった。
　しかしながら、弾性繊維用処理剤の成分として、上記特定の化学構造を有するモノエステル化合物（Ａ）を必須成分として採用することにより、摩擦性をむしろ低下させる効果を発揮するとともに、解舒性、巻き形状及び製剤安定性において優れた効果を発揮することを見出し、本発明を完成させたものである。
　本発明におけるモノエステル化合物（Ａ）は、エステル結合を１つ有する化学構造であれば、１価又は多価の脂肪族カルボン酸が、分岐鎖状や直鎖状であるか、さらには、置換基の有無等に特に制限はない。置換基を有してもよいとは、１価又は多価の脂肪族カルボン酸が、他に任意の結合や置換基を有してもよいという意味であり、例えば、アミド結合、エーテル結合、スルフィド結合、ジスルフィド結合、ウレタン結合などの結合や、エポキシ基、ニトロ基、シアノ基、ケトン基、ホルミル基、アセタール基、チオアセタール基、スルホニル基などの基などを有していてもよい。
　本発明におけるモノエステル化合物（Ａ）は、炭素数５～２４の１価の脂肪族カルボン酸と、炭素数１～２の１価アルコール、すなわちメタノール及び／又はエタノールとから縮合形成されたエステル結合を１つ有するエステル化合物であることが好ましく、炭素数５～２４の１価の脂肪族カルボン酸と、炭素数１の１価アルコール、すなわちメタノールとから縮合形成されたエステル結合を１つ有するエステル化合物であることがより好ましく、炭素数８～１８の１価の脂肪族カルボン酸と、炭素数１～２の１価アルコール、すなわちメタノール及び／又はエタノールとから形成されたエステル結合を１つ有するエステル化合物であることがさらに好ましい。 <Monoester compound (A)>
The elastic fiber treatment agent of the present invention has one ester bond formed by condensation of a monovalent or polyvalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. It contains a monoester compound (A) as an essential component.
Generally, it is known that adding an ester compound to a treatment agent for elastic fibers increases friction properties, so ester compounds have not been actively used as a component of treatment agents for elastic fibers. .
However, by employing the monoester compound (A) having the above-mentioned specific chemical structure as an essential component of the treatment agent for elastic fibers, it has the effect of lowering the friction properties, as well as improving the unwinding and winding properties. The present invention has been completed based on the discovery that it exhibits excellent effects in terms of shape and formulation stability.
If the monoester compound (A) in the present invention has a chemical structure having one ester bond, the monovalent or polyvalent aliphatic carboxylic acid may be branched, linear, or substituted. There are no particular restrictions on the presence or absence of groups. The term "may have a substituent" means that the monovalent or polyvalent aliphatic carboxylic acid may have any other bond or substituent, such as an amide bond, an ether bond, It may have bonds such as sulfide bonds, disulfide bonds, urethane bonds, and groups such as epoxy groups, nitro groups, cyano groups, ketone groups, formyl groups, acetal groups, thioacetal groups, and sulfonyl groups.
The monoester compound (A) in the present invention is an ester bond formed by condensation from a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms, that is, methanol and/or ethanol. An ester compound having one ester bond is preferably an ester compound having one ester bond formed by condensation of a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 carbon number, that is, methanol. It is more preferably a compound and has one ester bond formed from a monovalent aliphatic carboxylic acid having 8 to 18 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms, that is, methanol and/or ethanol. More preferably, it is an ester compound.

　炭素数５～２４の１価又は多価の脂肪族カルボン酸としては、例えば、吉草酸（炭素数：５）、カプロン酸（炭素数：６）、ソルビン酸（炭素数：６）、エナント酸（炭素数：７）、カプリル酸（炭素数：８）、ペラルゴン酸（炭素数：９）、カプリン酸（炭素数：１０）、ラウリン酸（炭素数：１２）、ミリスチン酸（炭素数：１４）、パルミチン酸（炭素数：１６）、マルガリン酸（炭素数：１７）、ステアリン酸（炭素数：１８）、オレイン酸（炭素数：１８）、リノール酸（炭素数：１８）、リノレン酸（炭素数：１８）、アラキドン酸（炭素数：２０）、エイコサペンタ酸（炭素数：２０）、ドコサヘキサエン酸（炭素数：２２）等のモノ飽和／不飽和脂肪族カルボン酸、グルタル酸（炭素数：５）、アジピン酸（炭素数：６）等の多価飽和／不飽和脂肪族カルボン酸、クエン酸（炭素数：６）等の置換基を有する多価脂肪族カルボン酸などが挙げられる。
　炭素数１～２の１価アルコールとは、すなわち、メタノール、エタノールを意味する。
　上記の１価又は多価の脂肪族カルボン酸及び炭素数１～２の１価アルコールは、それぞれ１種のみでも良いし、２種以上の混合物でも良い。
　本発明の弾性繊維用処理剤は、処理剤の全質量に対して、モノエステル化合物（Ａ）を１０～９５質量％の範囲で含有することが好ましく、１０～９３質量％の範囲で含有することがより好ましく、１０～９０質量％の範囲で含有することがさらに好ましい。
　本発明の弾性繊維用処理剤は、１種類のモノエステル化合物（Ａ）を単独で使用してもよいし、又は２種以上のモノエステル化合物（Ａ）を適宜組み合わせて使用してもよい。 Examples of monovalent or polyvalent aliphatic carboxylic acids having 5 to 24 carbon atoms include valeric acid (carbon number: 5), caproic acid (carbon number: 6), sorbic acid (carbon number: 6), and enanthic acid. (Number of carbons: 7), Caprylic acid (Number of carbons: 8), Pelargonic acid (Number of carbons: 9), Capric acid (Number of carbons: 10), Lauric acid (Number of carbons: 12), Myristic acid (Number of carbons: 14) ), palmitic acid (carbon number: 16), margaric acid (carbon number: 17), stearic acid (carbon number: 18), oleic acid (carbon number: 18), linoleic acid (carbon number: 18), linolenic acid ( Monosaturated/unsaturated aliphatic carboxylic acids such as carbon number: 18), arachidonic acid (carbon number: 20), eicosapentaic acid (carbon number: 20), docosahexaenoic acid (carbon number: 22), glutaric acid (carbon number: 5), polyvalent saturated/unsaturated aliphatic carboxylic acids such as adipic acid (carbon number: 6), and polyvalent aliphatic carboxylic acids having substituents such as citric acid (carbon number: 6).
Monohydric alcohol having 1 to 2 carbon atoms means methanol and ethanol.
The above-mentioned monovalent or polyvalent aliphatic carboxylic acid and monohydric alcohol having 1 to 2 carbon atoms may each be used alone or in a mixture of two or more.
The treatment agent for elastic fibers of the present invention preferably contains the monoester compound (A) in a range of 10 to 95% by mass, and preferably in a range of 10 to 93% by mass, based on the total mass of the treatment agent. More preferably, the content is in the range of 10 to 90% by mass.
In the treatment agent for elastic fibers of the present invention, one type of monoester compound (A) may be used alone, or two or more types of monoester compounds (A) may be used in an appropriate combination.

＜シリコーンオイル（Ｂ）＞
　本発明の弾性繊維用処理剤は、上記モノエステル化合物（Ａ）と共にシリコーンオイル（Ｂ）を必須成分として含有するものである。
　本発明の弾性繊維用処理剤は、シリコーンオイル（Ｂ）を上記モノエステル化合物（Ａ）と併用することにより、摩擦性、解舒性、巻き形状及び製剤安定性の全てにおいて優れた効果を発揮させるものである。
　シリコーンオイル（Ｂ）としては、例えば、ジメチルシリコーン、フェニル変性シリコーン、アミノ変性シリコーン、アミド変性シリコーン、ポリエーテル変性シリコーン、アミノポリエーテル変性シリコーン、アルキル変性シリコーン、アルキルアラルキル変性シリコーン、アルキルポリエーテル変性シリコーン、エステル変性シリコーン、エポキシ変性シリコーン、カルビノール変性シリコーン、メルカプト変性シリコーン、ポリオキシアルキレン変性シリコーン等が挙げられる。
　これらのシリコーンオイル（Ｂ）は、動粘度等によって規定される市販品を適宜採用してもよい。動粘度は、適宜設定されるが、２５℃における動粘度が２～１００ｍｍ２／ｓの範囲であることが好ましく、５～７０ｍｍ２／ｓがより好ましく、５～５０ｍｍ２／ｓがさらに好ましい。該粘度が２ｍｍ２／ｓ未満であるとシリコーンオイルが揮発する場合があり、１００ｍｍ２／ｓを超えると、弾性繊維用処理剤に配合される他成分の溶解性が悪くなることがある。２５℃における動粘度は、ＪＩＳ　Ｚ　８８０３に準拠して測定される数値を意味する。
　本発明の弾性繊維用処理剤は、処理剤の全質量に対して、シリコーンオイル（Ｂ）を１～８０質量％の範囲で含有することが好ましく、１～６０質量％の範囲で含有することがより好ましく、１～４０質量％の範囲で含有することがさらに好ましい。
　本発明の弾性繊維用処理剤は、１種類のシリコーンオイル（Ｂ）を単独で使用してもよいし、又は２種以上のシリコーンオイル（Ｂ）を適宜組み合わせて使用してもよい。 <Silicone oil (B)>
The treatment agent for elastic fibers of the present invention contains silicone oil (B) as an essential component together with the monoester compound (A).
The treatment agent for elastic fibers of the present invention exhibits excellent effects in all aspects of friction properties, unwinding properties, winding shape, and formulation stability by using silicone oil (B) in combination with the above monoester compound (A). It is something that makes you
Examples of the silicone oil (B) include dimethyl silicone, phenyl-modified silicone, amino-modified silicone, amide-modified silicone, polyether-modified silicone, aminopolyether-modified silicone, alkyl-modified silicone, alkylaralkyl-modified silicone, and alkylpolyether-modified silicone. , ester-modified silicone, epoxy-modified silicone, carbinol-modified silicone, mercapto-modified silicone, polyoxyalkylene-modified silicone, and the like.
As these silicone oils (B), commercially available products defined by kinematic viscosity and the like may be appropriately adopted. The kinematic viscosity is set appropriately, but the kinematic viscosity at 25° C. is preferably in the range of 2 to 100 mm 2 /s, more preferably 5 to 70 mm 2 /s, even more preferably 5 to 50 mm 2 /s. If the viscosity is less than 2 mm 2 /s, the silicone oil may volatilize, and if it exceeds 100 mm 2 /s, the solubility of other components blended into the elastic fiber treatment agent may deteriorate. Kinematic viscosity at 25°C means a value measured in accordance with JIS Z 8803.
The treatment agent for elastic fibers of the present invention preferably contains silicone oil (B) in a range of 1 to 80% by mass, and preferably in a range of 1 to 60% by mass, based on the total mass of the treatment agent. is more preferable, and it is even more preferable that the content is in the range of 1 to 40% by mass.
In the elastic fiber treatment agent of the present invention, one type of silicone oil (B) may be used alone, or two or more types of silicone oil (B) may be used in an appropriate combination.

＜鉱物油（Ｃ）＞
　本発明の弾性繊維用処理剤は、任意成分として鉱物油（Ｃ）を含有するものである。
　鉱物油（Ｃ）としては、例えば芳香族系炭化水素、パラフィン系炭化水素、ナフテン系炭化水素等が挙げられる。より具体的には、例えば、スピンドル油、流動パラフィン等が挙げられる。これらの鉱物油は、粘度等によって規定される市販品１種以上を適宜採用してもよい。
　本発明の弾性繊維用処理剤は、上記モノエステル化合物（Ａ）、シリコーンオイル（Ｂ）及び鉱物油（Ｃ）を、処理剤の全質量に対して７０～１００質量％の範囲で含有することが好ましく、７３～１００質量％の範囲で含有することがより好ましく、７５～１００質量％の範囲で含有することがさらに好ましい。
　本発明の弾性繊維用処理剤は、１種類の鉱物油（Ｃ）を単独で使用してもよいし、又は２種以上の鉱物油（Ｃ）を適宜組み合わせて使用してもよい。 <Mineral oil (C)>
The treatment agent for elastic fibers of the present invention contains mineral oil (C) as an optional component.
Examples of the mineral oil (C) include aromatic hydrocarbons, paraffinic hydrocarbons, naphthenic hydrocarbons, and the like. More specifically, examples include spindle oil and liquid paraffin. As these mineral oils, one or more commercially available products defined by viscosity and the like may be used as appropriate.
The treatment agent for elastic fibers of the present invention contains the monoester compound (A), silicone oil (B), and mineral oil (C) in an amount of 70 to 100% by mass based on the total mass of the treatment agent. The content is preferably in the range of 73 to 100% by mass, more preferably in the range of 75 to 100% by mass.
In the elastic fiber treatment agent of the present invention, one type of mineral oil (C) may be used alone, or two or more types of mineral oil (C) may be used in an appropriate combination.

＜有機リン酸エステル塩（Ｄ）＞
　本発明の弾性繊維用処理剤は、更に有機リン酸エステル塩（Ｄ）を含有することが好ましい。
　本発明の弾性繊維用処理剤は、有機リン酸エステル塩（Ｄ）を、処理剤の全質量に対して０～３０質量％の範囲で含有することが好ましく、０．０１～２５質量％の範囲で含有することがより好ましく、０．０５～２０質量％の範囲で含有することがさらに好ましい。
　また、有機リン酸エステル塩（Ｄ）は、２価の金属塩であることが好ましい。
　有機リン酸エステル塩（Ｄ）としては、炭素数８～２２のアルキル基を分子中に有するリン酸エステル塩及び、炭素数２～４のオキシアルキレン基から構成されるポリオキシアルキレン基と炭素数８～２２のアルキル基とを分子中に有するリン酸エステル塩から選ばれる少なくとも１つであることが好ましい。
　本発明の弾性繊維用処理剤は、１種類の有機リン酸エステル塩（Ｄ）を単独で使用してもよいし、又は２種以上の有機リン酸エステル塩（Ｄ）を適宜組み合わせて使用してもよい。 <Organic phosphate ester salt (D)>
It is preferable that the treatment agent for elastic fibers of the present invention further contains an organic phosphate ester salt (D).
The treatment agent for elastic fibers of the present invention preferably contains an organic phosphate ester salt (D) in a range of 0 to 30% by mass based on the total mass of the treatment agent, and preferably in a range of 0.01 to 25% by mass. The content is more preferably within a range of 0.05 to 20% by mass, and even more preferably within a range of 0.05 to 20% by mass.
Moreover, it is preferable that the organic phosphate ester salt (D) is a divalent metal salt.
As the organic phosphate ester salt (D), a phosphate ester salt having an alkyl group having 8 to 22 carbon atoms in the molecule, and a polyoxyalkylene group composed of an oxyalkylene group having 2 to 4 carbon atoms and a carbon number Preferably, it is at least one selected from phosphoric acid ester salts having 8 to 22 alkyl groups in the molecule.
In the elastic fiber treatment agent of the present invention, one type of organic phosphate ester salt (D) may be used alone, or two or more types of organic phosphate ester salts (D) may be used in an appropriate combination. You can.

＜ヒドロキシ化合物（Ｅ）＞
　本発明の弾性繊維用処理剤は、更にヒドロキシ化合物（Ｅ）を含有することが好ましい。
　このヒドロキシ化合物（Ｅ）としては、炭素数８～２４の脂肪族アルコール、及び炭素数８～２４の脂肪族アルコール１モルに対し炭素数２～４のアルキレンオキサイドを１～１００モルの割合で付加させたアルキレンオキサイド付加物から選ばれる少なくとも１つであることが好ましい。
　炭素数８～２４の脂肪族アルコールは、不飽和結合の有無について特に制限はなく、直鎖状又は分岐鎖状の炭化水素基を有するアルコールであってもよいし、環状のシクロ環を有するアルコールであってもよい。分岐鎖状の炭化水素基を有するアルコールの場合、その分岐位置は特に制限されるものではなく、例えば、α位が分岐した炭素鎖であってもよいし、β位が分岐した炭素鎖であってもよい。また、第１級アルコールであっても、第２級アルコールであってもよい。
　脂肪族アルコールとしては、例えば、オクタノール、ノナノール、デカノール、ウンデカノール、ラウリルアルコール、トリデシルアルコール、ミリスチルアルコール、ペンタデシルアルコール、セタノール、ステアリルアルコール、エイコサノール、ベヘニルアルコール、テトラコサノール、オレイルアルコール、１２－エイコシルアルコール、ヘキサデセニルアルコール、エイコセニルアルコール、オクタデセニルアルコール、ドコシルアルコール、イソドデシルアルコール、イソトリデシルアルコール、イソミリスチルアルコール、イソヘキサデシルアルコール、イソステアリルアルコール、イソテトラコサノール等の１価の脂肪族アルコール等が挙げられる。 <Hydroxy compound (E)>
It is preferable that the treatment agent for elastic fibers of the present invention further contains a hydroxy compound (E).
The hydroxy compound (E) includes an aliphatic alcohol having 8 to 24 carbon atoms, and an alkylene oxide having 2 to 4 carbon atoms added to 1 mol of aliphatic alcohol having 8 to 24 carbon atoms at a ratio of 1 to 100 mol. It is preferable that it is at least one selected from alkylene oxide adducts.
The aliphatic alcohol having 8 to 24 carbon atoms is not particularly limited as to the presence or absence of an unsaturated bond, and may be an alcohol having a linear or branched hydrocarbon group, or an alcohol having a cyclic cyclo ring. It may be. In the case of an alcohol having a branched hydrocarbon group, the branching position is not particularly limited, and for example, the carbon chain may be branched at the α position, or the carbon chain may be branched at the β position. You can. Moreover, it may be a primary alcohol or a secondary alcohol.
Examples of aliphatic alcohols include octanol, nonanol, decanol, undecanol, lauryl alcohol, tridecyl alcohol, myristyl alcohol, pentadecyl alcohol, cetanol, stearyl alcohol, eicosanol, behenyl alcohol, tetracosanol, oleyl alcohol, and 12-eicosyl alcohol. Alcohol, hexadecenyl alcohol, eicocenyl alcohol, octadecenyl alcohol, docosyl alcohol, isododecyl alcohol, isotridecyl alcohol, isomyristyl alcohol, isohexadecyl alcohol, isostearyl alcohol, isotetracosanol, etc. monohydric aliphatic alcohols and the like.

　炭素数８～２４の脂肪族アルコール１モルに対し炭素数２～４のアルキレンオキサイドを１～１００モルの割合で付加させたアルキレンオキサイド付加物における、アルキレンオキサイドとしては、例えば、エチレンオキサイド、プロピレンオキサイド、ブチレンオキサイド等が挙げられる。脂肪族アルコール１モルに対するアルキレンオキサイドの付加モル数は、好ましくは１～１００モル、より好ましくは１～５０モル、さらに好ましくは１～３０モルである。なお、アルキレンオキサイドの付加モル数は、仕込み原料中における脂肪族アルコール１モルに対するアルキレンオキサイドのモル数を示す。
　本発明の弾性繊維用処理剤は、ヒドロキシ化合物（Ｅ）を、処理剤の全質量に対して０～３０質量％の範囲で含有することが好ましく、０．０１～２０質量％の範囲で含有することがより好ましく、０．０５～１０質量％の範囲で含有することがさらに好ましい。
　本発明の弾性繊維用処理剤は、１種類のヒドロキシ化合物（Ｅ）を単独で使用してもよいし、又は２種以上のヒドロキシ化合物（Ｅ）を適宜組み合わせて使用してもよい。 In an alkylene oxide adduct in which an alkylene oxide having 2 to 4 carbon atoms is added at a ratio of 1 to 100 mol to 1 mol of aliphatic alcohol having 8 to 24 carbon atoms, examples of the alkylene oxide include ethylene oxide and propylene oxide. , butylene oxide, and the like. The number of moles of alkylene oxide added per mole of aliphatic alcohol is preferably 1 to 100 moles, more preferably 1 to 50 moles, and even more preferably 1 to 30 moles. Note that the number of moles of alkylene oxide added indicates the number of moles of alkylene oxide per mole of aliphatic alcohol in the raw material.
The treatment agent for elastic fibers of the present invention preferably contains the hydroxy compound (E) in a range of 0 to 30% by mass, and preferably in a range of 0.01 to 20% by mass based on the total mass of the treatment agent. It is more preferable that the content be 0.05 to 10% by mass.
In the treatment agent for elastic fibers of the present invention, one type of hydroxy compound (E) may be used alone, or two or more types of hydroxy compounds (E) may be used in an appropriate combination.

＜その他の成分（Ｆ）＞
　本発明の弾性繊維用処理剤は、その他の成分（Ｆ）として、制電剤、消泡剤、酸化防止剤、防腐剤、防錆剤等を併用することができる。その他の成分（Ｆ）の併用量は、本発明の効果を損なわない範囲内において規定することができる。 <Other ingredients (F)>
The treatment agent for elastic fibers of the present invention may contain, as other components (F), an antistatic agent, an antifoaming agent, an antioxidant, a preservative, a rust preventive, and the like. The amount of other component (F) used in combination can be determined within a range that does not impair the effects of the present invention.

　本発明の弾性繊維用処理剤は、特定の化学構造を有するモノエステル化合物（Ａ）とシリコーンオイル（Ｂ）を含有し、任意成分として鉱物油（Ｃ）、有機リン酸エステル塩（Ｄ）、ヒドロキシ化合物（Ｅ）を含有することにより、摩擦性、解舒性、巻き形状及び製剤安定性の全てにおいて優れた効果を発揮するものである。
　特に、弾性繊維用処理剤の摩擦性を高めることが知られていたエステル化合物のうち、特定の化学構造を有するモノエステル化合物（Ａ）を配合することにより、摩擦性をむしろ低下させる効果を発揮するという、顕著な効果を発揮するものである。
　本発明の弾性繊維用処理剤におけるシリコーンオイル（Ｂ）は、上記エステル化合物（Ａ）と併用することにより、摩擦性、解舒性、巻き形状及び製剤安定性の全てにおいて優れた効果を発揮させるものである。
　任意成分である有機リン酸エステル塩（Ｄ）は、その配合により解舒性においてさらに優れた効果を、特に、有機リン酸エステル塩（Ｄ）が２価の金属塩の配合により、解舒性においてより一層優れた効果を、また、ヒドロキシ化合物（Ｅ）は、その配合により製剤安定性においてさらに優れた効果を発揮させるものである。 The treatment agent for elastic fibers of the present invention contains a monoester compound (A) having a specific chemical structure and a silicone oil (B), and optionally includes mineral oil (C), organic phosphate ester salt (D), By containing the hydroxy compound (E), excellent effects are exhibited in all aspects of friction properties, unwinding properties, rolled shape, and formulation stability.
In particular, among the ester compounds known to increase the friction properties of elastic fiber treatment agents, by blending a monoester compound (A) with a specific chemical structure, the effect of reducing the friction properties is exhibited. It has a remarkable effect.
The silicone oil (B) in the treatment agent for elastic fibers of the present invention exhibits excellent effects in all aspects of friction properties, unwinding properties, winding shape, and formulation stability when used in combination with the above-mentioned ester compound (A). It is something.
The organic phosphate ester salt (D), which is an optional component, has an even more excellent effect on unwinding properties when mixed with it.In particular, when the organic phosphate ester salt (D) is mixed with a divalent metal salt, the unwinding property is improved. Furthermore, the hydroxy compound (E) exhibits an even more excellent effect in terms of formulation stability by its blending.

＜弾性繊維＞
　本発明の弾性繊維用処理剤を付着させる弾性繊維の具体例としては、特に制限はないが、例えばポリエステル系弾性繊維、ポリアミド系弾性繊維、ポリオレフィン系弾性繊維、ポリウレタン系弾性繊維等が挙げられる。これらの中でもポリウレタン系弾性繊維が好ましい。かかる場合に本発明の効果の発現をより高くすることができる。
　本発明の弾性繊維用処理剤の弾性繊維に対する付着量は、特に制限はないが、本発明の効果をより向上させる観点から０．１質量％以上１０質量％以下の範囲で付着させることが好ましい。 <Elastic fiber>
Specific examples of elastic fibers to which the elastic fiber treatment agent of the present invention is attached are not particularly limited, but include polyester elastic fibers, polyamide elastic fibers, polyolefin elastic fibers, polyurethane elastic fibers, and the like. Among these, polyurethane elastic fibers are preferred. In such a case, the effect of the present invention can be more effectively expressed.
The amount of the elastic fiber treatment agent of the present invention attached to the elastic fiber is not particularly limited, but from the viewpoint of further improving the effects of the present invention, it is preferably attached in a range of 0.1% by mass or more and 10% by mass or less. .

　本発明における弾性繊維の製造方法は、本発明の弾性繊維用処理剤を弾性繊維に給油することにより得られる。処理剤の給油方法としては、希釈することなくニート給油法により、弾性繊維の紡糸工程において弾性繊維に付着させる方法が好ましい。付着方法としては、例えばローラー給油法、ガイド給油法、スプレー給油法等の公知の方法が適用できる。給油ローラーは、通常口金から巻き取りトラバースまでの間に位置させることが一般的であり、本発明の製造方法にも適用できる。これらの中でも、延伸ローラーと延伸ローラーの間に位置する給油ローラーにて本発明の弾性繊維用処理剤を弾性繊維、例えばポリウレタン系弾性繊維に付着させることが、本発明の効果を顕著に発現させるために好ましい。
　本発明に用いる弾性繊維自体の製造方法は、特に限定されず、公知の方法で製造が可能である。例えば湿式紡糸法、溶融紡糸法、乾式紡糸法等が挙げられる。これらの中でも、弾性繊維の品質及び製造効率が優れる観点から乾式紡糸法が好ましく適用される。 The method for producing elastic fibers according to the present invention is obtained by supplying elastic fibers with the treatment agent for elastic fibers according to the present invention. As a method of lubricating the treatment agent, it is preferable to apply the treatment agent to the elastic fibers in the spinning process of the elastic fibers by a neat lubricating method without diluting the treatment agent. As a method of attachment, known methods such as a roller lubrication method, a guide lubrication method, a spray lubrication method and the like can be applied. The oil supply roller is generally located between the spinneret and the winding traverse, and can also be applied to the manufacturing method of the present invention. Among these, applying the treatment agent for elastic fibers of the present invention to elastic fibers, such as polyurethane elastic fibers, using a lubricating roller located between the stretching rollers brings out the effects of the present invention significantly. preferred for.
The method for producing the elastic fiber itself used in the present invention is not particularly limited, and can be produced by any known method. Examples include wet spinning, melt spinning, and dry spinning. Among these, the dry spinning method is preferably applied from the viewpoint of superior quality of elastic fibers and production efficiency.

　以下、実施例を挙げて本発明を説明するが、本発明の技術範囲はこれらにより限定されるものではない。なお、以下の実施例及び比較例において、部は質量部を、また％は質量％を意味する。 The present invention will be described below with reference to Examples, but the technical scope of the present invention is not limited by these. In addition, in the following Examples and Comparative Examples, parts mean parts by mass, and % means mass %.

＜実施例１～３９、比較例１～１６の弾性繊維用処理剤＞
　実施例１～３９の弾性繊維用処理剤は下記表１に、比較例１～１６の弾性繊維用処理剤は下記表２に、それぞれ示された組成に基づいて、各成分をよく混合して均一にすることで各弾性繊維用処理剤を調製した。 <Treatment agents for elastic fibers of Examples 1 to 39 and Comparative Examples 1 to 16>
The treatment agents for elastic fibers of Examples 1 to 39 are shown in Table 1 below, and the treatment agents for elastic fibers of Comparative Examples 1 to 16 are shown in Table 2 below.Based on the compositions shown, the respective components were thoroughly mixed. Each elastic fiber treatment agent was prepared by making it uniform.

　表１、２に記載した各成分の詳細は以下のとおりである。
＜モノエステル化合物（Ａ）＞
　Ａ－１：カプリル酸メチル
　Ａ－２：ラウリン酸メチル
　Ａ－３：オレイン酸メチル
　Ａ－４：エルカ酸メチル
　Ａ－５：レブリン酸メチル
　Ａ－６：イソステアリン酸エチル
　Ａ－７：カプリル酸エチル
　Ａ－８：吉草酸エチル
　Ａ－９：ジエチルマロン酸モノメチルエステル
＜モノエステル化合物（Ａ）以外の化合物＞
　ｒａ－１：ミリスチン酸イソプロピル
　ｒａ－２：パルミチン酸イソプロピル
　ｒａ－３：メタアクリル酸メチル
　ｒａ－４：テレフタル酸ジエチル
　ｒａ－５：安息香酸メチル
　ｒａ－６：オクチル酸
　ｒａ－７：イソステアリン酸 Details of each component listed in Tables 1 and 2 are as follows.
<Monoester compound (A)>
A-1: Methyl caprylate A-2: Methyl laurate A-3: Methyl oleate A-4: Methyl erucate A-5: Methyl levulinate A-6: Ethyl isostearate A-7: Ethyl caprylate A -8: Ethyl valerate A-9: Diethylmalonic acid monomethyl ester <Compounds other than monoester compound (A)>
ra-1: Isopropyl myristate ra-2: Isopropyl palmitate ra-3: Methyl methacrylate ra-4: Diethyl terephthalate ra-5: Methyl benzoate ra-6: Octylic acid ra-7: Isostearic acid

＜シリコーンオイル（Ｂ）＞
　Ｂ－１：ジメチルシリコーン（動粘度１０ｍｍ２／ｓ：２５℃）
　Ｂ－２：ジメチルシリコーン（動粘度２０ｍｍ２／ｓ：２５℃） <Silicone oil (B)>
B-1: Dimethyl silicone (kinematic viscosity 10 mm 2 /s: 25°C)
B-2: Dimethyl silicone (kinematic viscosity 20 mm 2 /s: 25°C)

＜鉱物油（Ｃ）＞
　Ｃ－１：鉱物油（４０℃におけるレッドウッド粘度計での粘度が６０秒）
　Ｃ－２：鉱物油（４０℃におけるレッドウッド粘度計での粘度が１００秒） <Mineral oil (C)>
C-1: Mineral oil (viscosity at 40°C using a redwood viscometer is 60 seconds)
C-2: Mineral oil (viscosity at 40°C using a redwood viscometer is 100 seconds)

＜有機リン酸エステル塩（Ｄ）＞
　Ｄ－１：イソオクチルリン酸エステルのマグネシウム塩
　Ｄ－２：ラウリルリン酸エステルのカルシウム塩
　Ｄ－３：イソオクタデシルリン酸エステルのマグネシウム塩
　Ｄ－４：ラウリルアルコールのエチレンオキサイド５モル付加物のリン酸エステルのマグネシウム塩
　Ｄ－５：ラウリルアルコールのエチレンオキサイド５モル付加物のリン酸エステルのカリウム塩
　Ｄ－６：イソオクチルデシルリン酸エステルのエタノールアミン塩
　Ｄ－７：イソオクタデシルリン酸エステルのナトリウム塩 <Organic phosphate ester salt (D)>
D-1: Magnesium salt of isooctyl phosphate D-2: Calcium salt of lauryl phosphate D-3: Magnesium salt of isooctadecyl phosphate D-4: Phosphorus of 5 moles of ethylene oxide adduct of lauryl alcohol Magnesium salt of acid ester D-5: Potassium salt of phosphate ester of 5 moles of ethylene oxide adduct of lauryl alcohol D-6: Ethanolamine salt of isooctyldecyl phosphate D-7: Sodium isooctadecyl phosphate salt

＜ヒドロキシ化合物（Ｅ）＞
　Ｅ－１：オクチルアルコール
　Ｅ－２：２－ヘキシル－１－デカノール
　Ｅ－３：イソステアリルアルコール
　Ｅ－４：イソトリデカノールのエチレンオキサイド３モル付加物 <Hydroxy compound (E)>
E-1: Octyl alcohol E-2: 2-hexyl-1-decanol E-3: Isostearyl alcohol E-4: 3 mole ethylene oxide adduct of isotridecanol

＜評価方法及び評価基準＞
（１）処理剤の摩擦性に関する評価
［処理剤の摩擦性の評価方法］
　摩擦測定メーター（エイコー測器社製、ＳＡＭＰＬＥ　ＦＲＩＣＴＩＯＮ　ＵＮＩＴ　ＭＯＤＥＬ　ＴＢ－１）を用い、２つのフリーローラー間に直径１ｃｍで表面粗度２Ｓのクロムメッキ梨地ピンを配置し、このクロムメッキ梨地ピンに対し、ポリウレタン系弾性繊維パッケージ（５００ｇ巻き）から引き出したポリウレタン系弾性繊維の接触角度が９０度となるようにセットした。
　２５℃で６０％ＲＨの条件下、入側で初期張力（Ｔ１）５ｇをかけ、１００ｍ／分の速度で走行させたときの出側の２次張力（Ｔ２）を０．１秒毎に１分間測定した。下記式から摩擦係数を求め、下記の基準で評価した。
［摩擦性の評価基準］
　◎◎◎：摩擦係数が０．２０以上０．２３未満。
　◎◎：摩擦係数が０．２３以上０．２６未満。
　◎：摩擦係数が０．２６以上０．２９未満。
　○：摩擦係数が０．２９以上０．３２未満。
　×：摩擦係数が０．３２以上。 <Evaluation method and evaluation criteria>
(1) Evaluation of the frictional properties of the processing agent [Method for evaluating the frictional properties of the processing agent]
Using a friction measuring meter (manufactured by Eiko Sokki Co., Ltd., SAMPLE FRICTION UNIT MODEL TB-1), a chrome-plated satin pin with a diameter of 1 cm and a surface roughness of 2S was placed between two free rollers, and the The polyurethane elastic fibers were set so that the contact angle of the polyurethane elastic fibers pulled out from the polyurethane elastic fiber package (500 g roll) was 90 degrees.
Under conditions of 25°C and 60% RH, an initial tension (T1) of 5 g is applied on the entry side, and when running at a speed of 100 m/min, the secondary tension (T2) on the exit side is increased by 1 every 0.1 seconds. Measured for minutes. The friction coefficient was determined from the following formula and evaluated based on the following criteria.
[Frictional evaluation criteria]
◎◎◎: Friction coefficient is 0.20 or more and less than 0.23.
◎◎: Friction coefficient is 0.23 or more and less than 0.26.
◎: Friction coefficient is 0.26 or more and less than 0.29.
○: Friction coefficient is 0.29 or more and less than 0.32.
×: Friction coefficient is 0.32 or more.

（２）処理剤の解舒性に関する評価
［解舒性の評価方法］
　片側に第１駆動ローラーとこれに常時接する第１遊離ローラーとで送り出し部を構成し、また反対側に第２駆動ローラーとこれに常時接する第２遊離ローラーとで巻き取り部を構成して、該送り出し部に対し該巻き取り部を水平方向で２０ｃｍ離して設置した。
　第１駆動ローラーに各処理剤を付与した紡糸直後の乾式紡糸ポリウレタン系弾性繊維のパッケージを装着し、糸巻の厚さが２ｍｍになるまで解舒して、第２駆動ローラーに巻き取った。
　第１駆動ローラーからのポリウレタン系弾性繊維の「送り出し速度を５０ｍ／分」で固定する一方、第２駆動ローラーへのポリウレタン系弾性繊維の巻き取り速度を５０ｍ／分より徐々に上げて、ポリウレタン系弾性繊維をパッケージから強制解舒した。
　この強制解舒時において、送り出し部分と巻き取り部分との間でポリウレタン系弾性繊維の踊りがなくなる時点での巻き取り速度Ｖ（ｍ／分）を測定し、下記の算出式から解舒性（％）を求め、次の基準で評価した。
［算出式］
　解舒性（％）＝（Ｖ－５０）÷５０×１００＝（Ｖ－５０）×２
［解舒性の評価基準］
　◎◎：解舒性が１００％未満（糸の引き出し、糸切れともに全く問題なく、安定に解舒できる）
　◎：解舒性が１００％以上１３０％未満（糸の引き出しにほとんど抵抗が無く、また糸切れの発生も無く、安定に解舒できる）
　○：解舒性が１３０％以上１６０％未満（糸の引き出しにやや抵抗があるものの、糸切れの発生は無く、安定に解舒できる）
　×：解舒性が１６０％以上（糸の引き出しに抵抗があり、糸切れもあって、操業に問題がある） (2) Evaluation of the unwinding property of the treatment agent [Method for evaluating unwinding property]
A first drive roller and a first release roller that are in constant contact with the first drive roller constitute a feeding section on one side, and a winding section is configured with a second drive roller and a second release roller that are in constant contact with the same on the opposite side, The winding section was installed horizontally at a distance of 20 cm from the sending section.
A package of dry spun polyurethane elastic fibers immediately after spinning to which each treatment agent had been applied was attached to the first drive roller, and the spool was unwound to a thickness of 2 mm and wound onto the second drive roller.
While fixing the feeding speed of the polyurethane elastic fiber from the first drive roller to 50 m/min, the winding speed of the polyurethane elastic fiber to the second drive roller was gradually increased from 50 m/min. The elastic fibers were forcibly unwound from the package.
During this forced unwinding, the winding speed V (m/min) at the point when the polyurethane elastic fibers stop dancing between the sending part and the winding part is measured, and the unwinding performance ( %) and evaluated based on the following criteria.
[Calculation formula]
Unwindability (%) = (V-50) ÷ 50 x 100 = (V-50) x 2
[Evaluation criteria for unravelability]
◎◎: Unwinding property is less than 100% (no problems with thread pulling out or thread breakage, stable unwinding possible)
◎: Unwinding property is 100% or more and less than 130% (there is almost no resistance when pulling out the yarn, there is no occurrence of yarn breakage, and the yarn can be unraveled stably)
○: Unwinding property is 130% or more and less than 160% (there is some resistance to pulling out the yarn, but there is no yarn breakage and it can be unraveled stably)
×: Unwinding property is 160% or more (there is resistance to pulling out the thread, there is also thread breakage, and there are problems in operation)

（３）巻き形状に関する評価
［巻き形状の評価方法］
　４４ｄｔｅｘ／３ｆｉｌのマルチフィラメントの乾式紡糸したポリウレタン系弾性繊維に、各処理剤をローラー給油法で５．０％付着させた。そして、巻き取り速度５５０ｍ／分で、長さ５７ｍｍの円筒状紙管に、巻き幅４２ｍｍを与えるトラバースガイドを介して、サーフェイスドライブの巻取機を用いて５００ｇ巻き取り、ポリウレタン系弾性繊維のパッケージを得た。
　得られたポリウレタン系弾性繊維のパッケージ（５００ｇ巻き）について、巻き幅の最大値（Ｗｍａｘ）と最小幅（Ｗｍｉｎ）を計測し、バルジ（双方の差「Ｗｍａｘ－Ｗｍｉｎ」）を求め、下記の基準で評価した。
［巻き形状の評価基準］
　◎：バルジが４ｍｍ未満
　○：バルジが４ｍｍ以上７ｍｍ未満
　×：バルジが７ｍｍ以上 (3) Evaluation of winding shape [Evaluation method of winding shape]
5.0% of each treatment agent was applied to dry spun polyurethane elastic fibers of 44 dtex/3 fil by a roller oiling method. Then, at a winding speed of 550 m/min, 500 g was wound onto a 57 mm long cylindrical paper tube using a surface drive winding machine through a traverse guide giving a winding width of 42 mm, and the polyurethane elastic fiber was packaged. I got it.
For the obtained polyurethane elastic fiber package (500g roll), the maximum value (Wmax) and minimum width (Wmin) of the winding width were measured, the bulge (difference between the two "Wmax-Wmin") was determined, and the following criteria were determined. It was evaluated by
[Evaluation criteria for winding shape]
◎: Bulge is less than 4 mm ○: Bulge is 4 mm or more and less than 7 mm ×: Bulge is 7 mm or more

（４）製剤安定性に関する評価
［処理剤の製剤安定性の評価方法］
　各処理剤を、２５℃で３ヵ月静置して、下記の基準で安定性を評価した。
［処理剤の製剤安定性の評価基準］
　◎：沈殿、分離が無く、調製時と同様に均一な状態を保っている。
　〇：ごくわずかに沈殿を生じるが、撹拌によって調製時と同様に均一な状態に復元する。
　×：沈殿、分離が生じ、撹拌によって均一な状態に復元しない。 (4) Evaluation of formulation stability [method for evaluating formulation stability of processing agent]
Each treatment agent was allowed to stand at 25° C. for 3 months, and its stability was evaluated based on the following criteria.
[Evaluation criteria for formulation stability of processing agents]
◎: There is no precipitation or separation, and the state remains uniform as at the time of preparation.
○: A very small amount of precipitate is formed, but by stirring it returns to the same homogeneous state as at the time of preparation.
×: Precipitation and separation occur, and the state is not restored to a homogeneous state by stirring.

　上記の（１）摩擦性、（２）解舒性、（３）巻き形状、（４）製剤安定性、それぞれの評価結果を、実施例１～３９の弾性繊維用処理剤は表３に、比較例１～１６の弾性繊維用処理剤は表４にまとめて示す。 The evaluation results of the above (1) friction properties, (2) unwinding properties, (3) winding shape, and (4) formulation stability are shown in Table 3 for the elastic fiber treatment agents of Examples 1 to 39. The elastic fiber processing agents of Comparative Examples 1 to 16 are summarized in Table 4.

　上記表１～４に示すとおり、本発明の弾性繊維用処理剤の具体例である実施例１～３９は（１）摩擦性、（２）解舒性、（３）巻き形状、（４）製剤安定性の全ての評価結果が、特に良好（◎◎◎）～操業に問題ない程度（○）の範囲であることから、非常に有用であることが確認された。
　これに対して、本発明のモノエステル化合物（Ａ）とは相違するエステル化合物を含有する比較例１～１４、１６の弾性繊維用処理剤は、本発明の弾性繊維用処理剤と比較して、詳しくは、比較例１、３～７は実施例２と、比較例２は実施例１２と、比較例８は実施例２５と、比較例９は実施例３４と、比較例１０は実施例２８と、比較例１１は実施例１３と、比較例１２は実施例２６と、比較例１３は実施例３７と、比較例１４は実施例３５と、それぞれ比較して、特に（１）摩擦性において大きく劣ることが、さらには、（２）解舒性、（３）巻き形状、（４）製剤安定性も劣ることが明らかとなった。
　さらに、本発明のモノエステル化合物（Ａ）を含有しない比較例１５は、特に（１）摩擦性において大きく劣ることが、さらには、（２）解舒性、（３）巻き形状に劣ることが明らかとなった。 As shown in Tables 1 to 4 above, Examples 1 to 39, which are specific examples of the treatment agent for elastic fibers of the present invention, have (1) friction properties, (2) unwinding properties, (3) winding shape, and (4) All evaluation results of formulation stability ranged from particularly good (◎◎◎) to no problem for operation (○), confirming that it is extremely useful.
On the other hand, the elastic fiber processing agents of Comparative Examples 1 to 14 and 16 containing an ester compound different from the monoester compound (A) of the present invention were In detail, Comparative Examples 1, 3 to 7 are based on Example 2, Comparative Example 2 is based on Example 12, Comparative Example 8 is based on Example 25, Comparative Example 9 is based on Example 34, and Comparative Example 10 is based on Example 2. 28, Comparative Example 11 with Example 13, Comparative Example 12 with Example 26, Comparative Example 13 with Example 37, and Comparative Example 14 with Example 35, especially (1) friction properties. It was also revealed that (2) unwinding property, (3) winding shape, and (4) formulation stability were also inferior.
Furthermore, Comparative Example 15, which does not contain the monoester compound (A) of the present invention, is particularly inferior in (1) friction properties, (2) unwinding properties, and (3) poor winding shape. It became clear.

Claims (9)

　下記のモノエステル化合物（Ａ）とシリコーンオイル（Ｂ）を含有し、任意成分として鉱物油（Ｃ）を含有することを特徴とする弾性繊維用処理剤。
　モノエステル化合物（Ａ）：炭素数５～２４の１価又は多価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成された、エステル結合を１つ有するエステル化合物。 A treatment agent for elastic fibers, which contains the following monoester compound (A) and silicone oil (B), and contains mineral oil (C) as an optional component.
Monoester compound (A): An ester compound having one ester bond formed by condensation of a monovalent or polyvalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. 　前記モノエステル化合物（Ａ）が、
　炭素数５～２４の１価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成されたエステル結合を１つ有するエステル化合物を含む、請求項１に記載の弾性繊維用処理剤。 The monoester compound (A) is
The elastic fiber according to claim 1, comprising an ester compound having one ester bond formed by condensation from a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. Processing agent. 　前記モノエステル化合物（Ａ）が、
　炭素数５～２４の１価の脂肪族カルボン酸と、炭素数１の１価アルコールとから縮合形成されたエステル結合を１つ有するエステル化合物を含む、請求項１に記載の弾性繊維用処理剤。 The monoester compound (A) is
The treatment agent for elastic fibers according to claim 1, comprising an ester compound having one ester bond formed by condensation from a monovalent aliphatic carboxylic acid having 5 to 24 carbon atoms and a monohydric alcohol having 1 carbon number. . 　前記モノエステル化合物（Ａ）が、
　炭素数８～１８の１価の脂肪族カルボン酸と、炭素数１～２の１価アルコールとから縮合形成されたエステル結合を１つ有するエステル化合物を含む、請求項１に記載の弾性繊維用処理剤。 The monoester compound (A) is
The elastic fiber according to claim 1, comprising an ester compound having one ester bond formed by condensation from a monovalent aliphatic carboxylic acid having 8 to 18 carbon atoms and a monohydric alcohol having 1 to 2 carbon atoms. Processing agent. 　更に、有機リン酸エステル塩（Ｄ）を含有し、
　前記弾性繊維用処理剤の全質量に対して、前記有機リン酸エステル塩（Ｄ）を０．０５～２０質量％の割合で含有する請求項１に記載の弾性繊維用処理剤。 Furthermore, it contains an organic phosphate ester salt (D),
The treatment agent for elastic fibers according to claim 1, which contains the organic phosphate ester salt (D) in a proportion of 0.05 to 20% by mass based on the total mass of the treatment agent for elastic fibers. 　前記有機リン酸エステル塩（Ｄ）が、
　有機リン酸エステルの２価金属塩を含む請求項５に記載の弾性繊維用処理剤。 The organic phosphate ester salt (D) is
The treatment agent for elastic fibers according to claim 5, comprising a divalent metal salt of an organic phosphate ester. 　更に、ヒドロキシ化合物（Ｅ）を含有する請求項１に記載の弾性繊維用処理剤。 The treatment agent for elastic fibers according to claim 1, further comprising a hydroxy compound (E). 　前記シリコーンオイル（Ｂ）を、
　前記弾性繊維用処理剤の全質量に対して４０質量％以下の割合で含有する、請求項１に記載の弾性繊維用処理剤。 The silicone oil (B),
The processing agent for elastic fibers according to claim 1, which is contained in a proportion of 40% by mass or less based on the total mass of the processing agent for elastic fibers. 　請求項１～８のいずれか一項に記載の弾性繊維用処理剤が付着していることを特徴とする弾性繊維。 An elastic fiber to which the elastic fiber treatment agent according to any one of claims 1 to 8 is attached.
PCT/JP2022/040339 2022-07-12 2022-10-28 Elastic fiber treatment agent and elastic fibers Ceased WO2024014009A1 (en)

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