KR102460481B1 - Treatment agents for synthetic fibers and synthetic fibers - Google Patents

Abstract

The problem to be solved by the present invention is to provide a processing agent for synthetic fibers capable of reducing the scattering of the oil agent in the spinning process and improving the stability of the emulsion in water of poor quality such as hard water, It is to provide the synthetic fiber to which the processing agent for synthetic fibers adhered. This invention is a processing agent for synthetic fibers containing a smoothing agent, a nonionic surfactant, and an ionic surfactant, The said smoothing agent contains specific ester A1, Moreover, 40-100 mass % of the said ester A1 in the said smoothing agent ratio, and the nonionic surfactant contains an alkylene oxide adduct of an aliphatic alcohol having 4 to 24 carbon atoms having a branched chain structure.

Description

Treatment agents for synthetic fibers and synthetic fibers

The present invention provides a treatment agent for synthetic fibers capable of reducing scattering of the oil agent in the spinning process and improving the stability of the emulsion in water with poor water quality such as hard water, and a treatment agent for synthetic fibers attached thereto It relates to synthetic fibers.

In general, in the spinning process of synthetic fibers, from the viewpoint of reducing friction and reducing damage to fibers such as yarn breakage, there is a case where the treatment agent for synthetic fibers is adhered to the surface of the filament yarns of the synthetic fibers.

Conventionally, the processing agent for synthetic fibers disclosed by patent document 1 is known. Patent document 1 discloses about the processing agent for synthetic fibers containing surfactants, such as smoothing agents, such as stearic acid ester of 2-octyldodecanol, and stearic acid diester of trimethylolpropane EO 24 mol adduct.

Japanese Patent Laid-Open No. 2012-92481

However, in these conventional processing agents for synthetic fibers, the dispersion of the oil agent in the spinning process and the stability of the emulsion in water with poor water quality were not sufficient.

The present invention has been made in view of such a situation, and the object thereof is for synthetic fibers capable of reducing the scattering of the oil agent in the spinning process and improving the stability of the emulsion in water with poor water quality, such as hard water. to provide a treatment agent. Moreover, it is providing the synthetic fiber to which this processing agent for synthetic fibers adhered.

MEANS TO SOLVE THE PROBLEM As a result of the present inventors researching in order to solve the said subject, in the processing agent for synthetic fibers, it discovered that it was immediately suitable to contain a predetermined|prescribed ester compound, a predetermined|prescribed nonionic surfactant, and an ionic surfactant as a smoothing agent.

The processing agent for synthetic fibers for solving the above problem is a processing agent for synthetic fibers containing a smoothing agent, a nonionic surfactant and an ionic surfactant, the smoothing agent contains ester A1 represented by the following formula (1), and The ester A1 is contained in the leveling agent in a proportion of 40 to 100% by mass, and the nonionic surfactant contains an alkylene oxide adduct of an aliphatic alcohol having 4 to 24 carbon atoms having a branched chain structure. do it with

(In Formula 1,

R ¹ : a saturated hydrocarbon group having 7 to 23 carbon atoms, or an unsaturated hydrocarbon group having 7 to 23 carbon atoms;

X ¹ , Y ¹ , Z ¹ : a hydrogen atom, a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 21 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms, a straight chain unsaturated hydrocarbon having 3 to 21 carbon atoms group, or an unsaturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms.

However, at least one of X ¹ and Y ¹ is a methyl group, an ethyl group, or the hydrocarbon group, and the total number of carbon atoms of X ¹ , Y ¹ and Z ¹ is 5 to 21.)

In the processing agent for synthetic fibers, it is preferable that the smoothing agent further contains ester A2 represented by the following general formula (2).

(In Formula 2,

R ² : a saturated hydrocarbon group having 7 to 23 carbon atoms, or an unsaturated hydrocarbon group having 7 to 23 carbon atoms,

X ² : hydrogen atom,

Y ² : hydrogen atom;

Z ² : a hydrogen atom, a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 17 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 17 carbon atoms, a linear unsaturated hydrocarbon group having 3 to 17 carbon atoms, or 3 carbon atoms An unsaturated hydrocarbon group having a branched chain structure of to 17.)

The said processing agent for synthetic fibers WHEREIN: When the sum total of the content rate of the said ester A1 and the said ester A2 shall be 100 mass %, it is preferable to contain the said ester A1 in the ratio of 55-100 mass %.

In the processing agent for synthetic fibers, X ¹ in Formula 1 is a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 21 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms, and 3 to 21 carbon atoms. It is preferable that it is a linear unsaturated hydrocarbon group of or an unsaturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms.

In the processing agent for synthetic fibers, the nonionic surfactant is a compound in which an alkylene oxide having 2 to 4 carbon atoms is added in a ratio of 1 to 100 moles in total with respect to 1 mole of an aliphatic alcohol having 4 to 14 carbon atoms having a branched chain structure. It is preferable to contain

The said processing agent for synthetic fibers WHEREIN: It is preferable that the sum total of carbon number of X< ¹ >, Y< ¹ >, and Z< ¹ > of said Formula (1) is 6-12.

The synthetic fiber for solving the said subject has the said processing agent for synthetic fibers adhered, It is characterized by the above-mentioned.

ADVANTAGE OF THE INVENTION According to this invention, while being able to reduce the scattering of the oil agent in a spinning process, emulsion stability in water of poor quality, such as hard water, can be improved.

(First embodiment)

First, 1st Embodiment which actualized the processing agent for synthetic fibers (henceforth a processing agent) which concerns on this invention is demonstrated. The processing agent of this embodiment contains a smoothing agent, a nonionic surfactant, and an ionic surfactant.

The leveling agent provided in this embodiment contains ester A1 represented by following formula (3).

(In Formula 3,

R ¹ : a saturated hydrocarbon group having 7 to 23 carbon atoms, or an unsaturated hydrocarbon group having 7 to 23 carbon atoms;

X ¹ , Y ¹ , Z ¹ : a hydrogen atom, a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 21 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms, a straight chain unsaturated hydrocarbon group having 3 to 21 carbon atoms A hydrogen group or an unsaturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms.

However, at least one of X ¹ and Y ¹ is a methyl group, an ethyl group, or the hydrocarbon group, and the total number of carbon atoms of X ¹ , Y ¹ and Z ¹ is 5 to 21.)

These ester A1 may be used individually by 1 type, and may be used in combination of 2 or more type.

Among these, X ¹ in the formula (3) is a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 21 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms, a linear unsaturated hydrocarbon group having 3 to 21 carbon atoms, Or it is preferable that it is an unsaturated hydrocarbon group which has a C3-C21 branched structure. In the case of such a compound, scattering property can be reduced more especially. In addition, in the general formula (3), it is preferable that the total number of carbon atoms of X ¹ , Y ¹ and Z ¹ is 6 to 12. In the case of such a compound, the stability of the emulsion can be further improved, particularly in water of poor quality such as hard water.

The hydrocarbon group constituting R ¹ may be a linear saturated hydrocarbon group or a saturated hydrocarbon group having a branched chain structure. Moreover, the unsaturated hydrocarbon group which has a branched structure may be sufficient as a linear unsaturated hydrocarbon group.

Specific examples of the linear saturated hydrocarbon group constituting R ¹ include, for example, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, and a hexadecyl group. Sil group, heptadecyl group, octadecyl group, icosyl group, docosyl group, tricosyl group, etc. are mentioned.

Specific examples of the saturated hydrocarbon group having a branched chain structure constituting R ¹ include, for example, isoheptyl group, isooctyl group, isononyl group, isodecyl group, isoundecyl group, isododecyl group, isotridecyl group, isotridecyl group, iso A tetradecyl group, isopentadecyl group, isohexadecyl group, isoheptadecyl group, isooctadecyl group, isoicosyl group, isodocosyl group, isotricosyl group, etc. are mentioned.

The unsaturated hydrocarbon group constituting R ¹ may be an alkenyl group having one double bond as an unsaturated carbon bond, or an alkadienyl group or alkatrienyl group having two or more double bonds. Moreover, the alkynyl group which has one triple bond as an unsaturated carbon bond, the alkadienyl group which has two or more triple bonds, etc. may be sufficient. Specific examples of the straight-chain unsaturated hydrocarbon group having one double bond in the hydrocarbon group include, for example, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, an undecenyl group, a dodecenyl group, a tridecenyl group, and a tetra Decenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, octadecenyl group, icosenyl group, dococenyl group, tricocenyl group, etc. are mentioned.

Specific examples of the unsaturated hydrocarbon group having a branched chain structure having one double bond in the hydrocarbon group constituting R ¹ include, for example, an isoheptenyl group, an isooctenyl group, an isononenyl group, an isodecenyl group, and an isounde group. Cenyl group, isododecenyl group, isotridecenyl group, isotetradecenyl group, isopentadecenyl group, isohexadecenyl group, isoheptadecenyl group, isooctadecenyl group, isoicosenyl group, iso A dococenyl group, an isotricocenyl group, etc. are mentioned.

Specific examples of the linear saturated hydrocarbon group having 3 to 21 carbon atoms constituting X ¹ , Y ¹ , or Z ¹ include, for example, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, and a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, an icosyl group, and a heneicosyl group.

As a specific example of the saturated hydrocarbon group which has a C3-C21 branched structure constituting X ¹ , Y ¹ , or Z ¹ , for example, isopropyl group, isobutyl group, isopentyl group, isohexyl group, iso Heptyl group, isooctyl group, isononyl group, isodecyl group, isoundecyl group, isododecyl group, isotridecyl group, isotetradecyl group, isopentadecyl group, isohexadecyl group, isoheptadecyl group, isooctadecyl group Real group, isoicosyl group, isoheneicosyl group, etc. are mentioned.

The unsaturated hydrocarbon group constituting X ¹ , Y ¹ , or Z ¹ may be an alkenyl group having one double bond as an unsaturated carbon bond, an alkadienyl group having two or more double bonds, an alkatrienyl group, or the like. Moreover, the alkynyl group which has one triple bond as an unsaturated carbon bond, the alkadinyl group which has two or more triple bonds, etc. may be sufficient. Specific examples of the linear unsaturated hydrocarbon group having one double bond in the hydrocarbon group constituting X ¹ , Y ¹ , or Z ¹ include, for example, a propenyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group. , octenyl group, nonenyl group, decenyl group, undecenyl group, dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, octadecenyl group, ico A cenyl group, a henicosenyl group, etc. are mentioned.

Specific examples of the unsaturated hydrocarbon group having a branched chain structure having one double bond in the hydrocarbon group constituting X ¹ , Y ¹ , or Z ¹ include, for example, an isopropenyl group, an isobutenyl group, an isopentenyl group, isohexenyl group, isoheptenyl group, isooctenyl group, isononenyl group, isodecenyl group, isoondecenyl group, isododecenyl group, isotridecenyl group, isotetradecenyl group, isopentadecenyl group, isohexadecenyl group, isoheptadecenyl group, isooctadecenyl group, isoicosenyl group, isohenicosenyl group, etc. are mentioned.

Specific examples of ester A1 include 2-propylheptyloleate, 2-methylnonyloleate, 2-ethylheptyldecanoate, 2-methylnonyltetracosanoate, 2-ethyldecylstearate, 2-propyl Heptylstearate, 2-ethyltridecyloleate, 3,5,5-trimethylhexyloleate, 3,7-dimethyloctyloleate, 3-methylundecyloleate, 2-octyldodecylpalmitate, 2- Ethylhexyl stearate, 2-octyldodecyl isostearate, 3-methylheptadecyl oleate, etc. are mentioned.

It is preferable that the leveling agent provided in this embodiment contains ester A2 represented by following formula (4).

(In Formula 4,

R ² : a saturated hydrocarbon group having 7 to 23 carbon atoms, or an unsaturated hydrocarbon group having 7 to 23 carbon atoms,

X ² : hydrogen atom,

Y ² : hydrogen atom;

Z ² : a hydrogen atom, a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 17 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 17 carbon atoms, a linear unsaturated hydrocarbon group having 3 to 17 carbon atoms, or 3 carbon atoms An unsaturated hydrocarbon group having a branched chain structure of to 17.)

These ester A2 may be used individually by 1 type, and may be used in combination of 2 or more type.

The hydrocarbon group constituting R ² may be a linear saturated hydrocarbon group or a saturated hydrocarbon group having a branched chain structure. Moreover, the unsaturated hydrocarbon group which has a branched structure may be sufficient as a linear unsaturated hydrocarbon group.

Specific examples of the saturated hydrocarbon group or unsaturated hydrocarbon group constituting R ² include those exemplified as the saturated hydrocarbon group or unsaturated hydrocarbon group constituting R ¹ in the general formula (3).

Specific examples of the linear saturated hydrocarbon group having 3 to 17 carbon atoms constituting Z ² include, for example, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, and a dodecyl group. Sil group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, etc. are mentioned.

Specific examples of the saturated hydrocarbon group having a branched chain structure having 3 to 17 carbon atoms constituting Z ² include, for example, isopropyl group, isobutyl group, isopentyl group, isohexyl group, isoheptyl group, isooctyl group, iso Nonyl group, isodecyl group, isoundecyl group, isododecyl group, isotridecyl group, isotetradecyl group, isopentadecyl group, isohexadecyl group, isoheptadecyl group, etc. are mentioned.

The unsaturated hydrocarbon group constituting Z ² may be an alkenyl group having one double bond as an unsaturated carbon bond, or an alkadienyl group or alkatrienyl group having two or more double bonds. Moreover, an alkynyl group which has one triple bond as an unsaturated carbon bond, an alkadinyl group which has two or more triple bonds, etc. may be sufficient. Specific examples of the linear unsaturated hydrocarbon group having one double bond in the hydrocarbon group constituting Z ² include, for example, a propenyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, Decenyl group, undecenyl group, dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, etc. are mentioned.

Specific examples of the unsaturated hydrocarbon group having a branched chain structure having one double bond in the hydrocarbon group constituting Z ² include, for example, isopropenyl group, isobutenyl group, isopentenyl group, isohexenyl group, isohepte Nyl group, isooctenyl group, isononenyl group, isodecenyl group, isoundecenyl group, isododecenyl group, isotridecenyl group, isotetradecenyl group, isopentadecenyl group, isohexadecenyl group, isohexadecenyl group A heptadecenyl group etc. are mentioned.

As a specific example of ester A2, isotridecyl oleate, lauryl oleate, oleyl laurate etc. are mentioned, for example.

In the treatment agent, if the total content of the ester A1 and the ester A2 is 100% by mass, the content of the ester A1 is appropriately set, but the treatment agent preferably contains the ester A1 in a ratio of 55 to 100% by mass. . By specifying in such a range, especially the emulsion stability in water of poor quality, such as hard water, can be improved more.

As a leveling agent provided in this embodiment, you may use together leveling agents other than the above. As a smoothing agent other than the above, a well-known thing can be employ|adopted suitably. As a specific example of a smoothing agent, For example, (1) an ester compound of an aliphatic monoalcohol and an aliphatic monocarboxylic acid, such as 2-ethyl tridecyl propionate and 2-dodecyl hexadecyl oleate, carbon number in an aliphatic monoalcohol Ester compound of (poly)oxyalkylene adduct and aliphatic monocarboxylic acid to which alkylene oxide of 2 to 4 was added, (2) 1,6-hexanediol didecanoate, trimethylolpropane monooleate monolaurate , ester compounds of aliphatic polyhydric alcohols and aliphatic monocarboxylic acids, such as sorbitan trioleate, sorbitan monooleate, sorbitan monostearate, and glycerin monolaurate, (3) dilauryl adipate, dioleyl azel Aliphatic monoalcohols and aliphatic polyhydric acids, such as lactate, ditetradecylthiodipropionate, diisocetylthiodipropionate, bispolyoxyethylene lauryl ether adipate, and bispolyoxyethylene lauryl ether thiodipropionate Ester compound with carboxylic acid, ester compound of (poly)oxyalkylene adduct obtained by adding an alkylene oxide having 2 to 4 carbon atoms to aliphatic monoalcohol and aliphatic polyhydric carboxylic acid, (4) benzyl oleate, benzyl laurate and an ester compound of an aromatic monoalcohol and an aliphatic monocarboxylic acid, such as polyoxypropylenebenzylstearate, a (poly)oxyalkylene adduct obtained by adding an alkylene oxide having 2 to 4 carbon atoms to the aromatic monoalcohol, and an aliphatic monocarboxylic acid Ester compounds with acids, (5) ester compounds of aromatic polyhydric alcohols and aliphatic monocarboxylic acids, such as bisphenol A dilaurate and polyoxyethylenebisphenol A dilaurate, and alkylene having 2 to 4 carbon atoms in aromatic polyhydric alcohols An ester compound of an oxide-added (poly)oxyalkylene adduct and an aliphatic monocarboxylic acid; Ester compound of alcohol and aromatic polyhydric carboxylic acid, ester compound of (poly)oxyalkylene adduct obtained by adding alkylene oxide having 2 to 4 carbon atoms to aliphatic monoalcohol and aromatic polyhydric carboxylic acid water, (7) natural oils such as palm oil, rapeseed oil, sunflower oil, soybean oil, castor oil, sesame oil, fish oil, and tallow, (8) mineral oil, and other known smoothing agents employed in treatment agents. These smoothing agents may be used individually by 1 type, and may be used in combination of 2 or more type.

A leveling agent contains ester A1 in the ratio of 40-100 mass %. By specifying in such a range, the effect of this invention can be improved.

Although content of the smoothing agent in a processing agent is set suitably, Preferably it is 20-80 mass %, More preferably, it is 30-70 mass %. By being prescribed in such a range, the smoothness of a fiber can be improved.

The nonionic surfactant provided in this embodiment contains the C4-C24 aliphatic alcohol alkylene oxide adduct which has a branched chain structure. The aliphatic alcohol may be a saturated aliphatic alcohol or an unsaturated aliphatic alcohol. These nonionic surfactants may be used individually by 1 type, and may be used in combination of 2 or more type.

Specific examples of the aliphatic alcohol having 4 to 24 carbon atoms having a branched chain structure include, for example, isobutanol, isohexanol, 2-ethylhexanol, isooctanol, isononanol, isodecanol, isododecanol, and isotridecane. Ol, isotetradecanol, isohexadecanol, isoheptadecanol, isooctadecanol, isostearyl alcohol, isononadecanol, isoeicosanol, isoheneicosanol, isodocosanol, 2-octyldodecanol Branched alkenyl alcohol, such as branched alkyl alcohols, such as ol, isotrichosanol, and isotetracosanol, isohexadesenol, and isooctadesenol, etc. are mentioned.

As a specific example of the alkylene oxide which can be used as a raw material of a nonionic surfactant, ethylene oxide, a propylene oxide, etc. are mentioned, for example. Although the added mole number of an alkylene oxide is set suitably, Preferably it is 0.1-150 mol, More preferably, it is 1-100 mol, More preferably, it is 2-50 mol. In addition, the number of moles added of an alkylene oxide shows the number of moles of an alkylene oxide with respect to 1 mole of alcohols in an input raw material. The polymerization arrangement may be either a random adduct or a block adduct.

As a specific example of the C4-C24 aliphatic alcohol alkylene oxide adduct which has a branched chain structure, For example, a random adduct of 10 mol of ethylene oxide and 8 mol of propylene oxide of isohexanol, propylene oxide 15 of 2-ethylhexanol A block adduct of 13 moles of mole-ethylene oxide, a random adduct of 8 moles of ethylene oxide and 6 moles of propylene oxide of 2-octyldodecanol, etc. are mentioned.

Among the above-mentioned nonionic surfactants, a compound obtained by adding an alkylene oxide having 4 to 4 carbon atoms to 1 mole of an aliphatic alcohol having 4 to 14 carbon atoms having a branched chain structure in a ratio of 1 to 100 moles in total is preferable. By using such a compound, especially the scattering of an oil agent can be further reduced.

Although content of the C4-C24 aliphatic alcohol alkylene oxide adduct which has a branched chain structure in a processing agent is set suitably, Preferably it is 1-30 mass %, More preferably, it is 3-25 mass %, More preferably is 5 to 20 mass %. By being prescribed|regulated in such a range, the effect of this invention can be improved more.

As a nonionic surfactant provided in this embodiment, you may use together nonionic surfactant other than the above. As a nonionic surfactant other than the above, a well-known thing can be employ|adopted suitably. As a specific example of the nonionic surfactant, for example, (1) a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms to an organic acid, an organic alcohol, an organic amine and/or an organic amide, for example, polyoxyethylene dilauric acid ester , polyoxyethylene lauric acid ester, polyoxyethylene oleic acid ester, polyoxyethylene oleic acid diester, polyoxyethylene octyl ether, polyoxyethylene lauryl ether, polyoxyethylene lauryl ether methyl ether, polyoxyethylene polyoxypropylene Lauryl ether, polyoxypropylene lauryl ether methyl ether, polyoxyethylene oleyl ether, polyoxybutylene oleyl ether, polyoxyethylene polyoxypropylene nonyl ether, polyoxypropylene nonyl ether, polyoxyethylene polyoxypropylene octyl Ether, polyoxyethylene dodecyl ether, polyoxyethylene tridecyl ether, random adduct of ethylene oxide propylene oxide of tetradecyl octadecanol, polyoxyethylene lauryl amino ether, polyoxyethylene lauroamido ether, polyoxy Ether-type nonionic surfactants such as ethylene tristyrenated phenyl ether and ethylene oxide propylene oxide adduct of glycerin, (2) polyoxyalkylene sorbitan trioleate Esters, polyoxyalkylene palm oil, polyoxyalkylene castor oil, polyoxyalkylene hydrogenated castor oil, polyoxyalkylene hydrogenated castor oil trioctanoate, polyoxyalkylene hydrogenated castor oil maleic acid ester, stearic acid ester, or polyoxyalkylene polyhydric alcohol fatty acid ester type nonionic surfactants such as oleic acid ester, (3) alkylamide type nonionic surfactant such as stearic acid diethanolamide and diethanolamine monolauroamide, (4) polyoxy Polyoxyalkylene fatty acid amide type nonionic surfactant, such as ethylenediethanolamine monooleylamide, polyoxyethylene laurylamine, and polyoxyethylene tallow amine, etc. are mentioned.

Although the content rate of the C4-C24 aliphatic alcohol alkylene oxide adduct which has a branched chain structure in all nonionic surfactant is set suitably, Preferably it is 10-100 mass %, More preferably, 15-80 mass %, more preferably 20 to 60 mass%. By specifying in such a range, the effect of this invention can be improved.

Although content of all the nonionic surfactant in a processing agent is set suitably, Preferably it is 5-70 mass %, More preferably, it is 15-60 mass %. By being defined in this range, the effect of the present invention and stability when made into an emulsion can be improved.

As an ionic surfactant provided in this embodiment, a well-known thing can be employ|adopted suitably. Examples of the ionic surfactant include an anionic surfactant, a cationic surfactant, and an amphoteric surfactant. These components may be used individually by 1 type, and may be used in combination of 2 or more type.

As anionic surfactant provided in this embodiment, a well-known thing can be employ|adopted suitably. Specific examples of the anionic surfactant include (1) phosphate ester salts of aliphatic alcohols such as lauryl phosphate ester salt, cetyl phosphate ester salt, octyl phosphate ester salt, oleyl phosphate ester salt, and stearyl phosphate ester salt, ( 2) At least one alkylene selected from ethylene oxide and propylene oxide in an aliphatic alcohol such as polyoxyethylene lauryl ether phosphate ester salt, polyoxyethylene oleyl ether phosphate ester salt, and polyoxyethylene stearyl ether phosphate ester salt Oxide-added phosphoric acid ester salts, (3) laurylsulfonate, myristylsulfonate, cetylsulfonate, oleylsulfonate, stearylsulfonate, tetradecanesulfonate, dodecylbenzenesulfonate, secondary alkyl aliphatic sulfonic acid salts or aromatic sulfonic acid salts such as sulfonic acid (C13 to 15) salts; Aliphatic alcohols such as oxyethylene lauryl ether sulfate ester salt, polyoxyalkylene (polyoxyethylene, polyoxypropylene) lauryl ether sulfate ester salt, and polyoxyethylene oleyl ether sulfate ester salt selected from ethylene oxide and propylene oxide sulfuric acid ester salts obtained by adding at least one alkylene oxide; Sulfuric acid ester salts of fatty acids such as palm oil fatty acid sulfate ester salt, lard fatty acid sulfate ester salt, tallow fatty acid sulfate ester salt, light oil fatty acid sulfate ester salt, (7) sulfuric acid ester salt of castor oil, sulfuric acid ester salt of horseradish oil, sulfate ester of tall oil Salt, sulfate ester salt of soybean oil, sulfate ester salt of rapeseed oil, sulfate ester salt of palm oil, sulfate ester salt of lard, sulfate ester salt of tallow, sulfuric ester salt of oil and fat such as sulfuric acid ester salt of light oil, (8) laur Fatty acid salts, such as acid salts, oleic acid salts, and stearic acid salts, (9) dioctylsulfosuccinate The sulfosuccinic acid ester salt of aliphatic alcohols, such as these, etc. are mentioned. Examples of the counter ion of the anionic surfactant include alkali metal salts such as potassium salt and sodium salt, ammonium salt, and alkanolamine salts such as triethanolamine.

As a cationic surfactant provided in this embodiment, a well-known thing can be employ|adopted suitably. Specific examples of the cationic surfactant include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, and didecyl dimethyl ammonium chloride.

As an amphoteric surfactant provided in this embodiment, a well-known thing can be employ|adopted suitably. As a specific example of amphoteric surfactant, betaine type amphoteric surfactant etc. are mentioned, for example.

Although content of the ionic surfactant in a processing agent is set suitably, Preferably it is 1-20 mass %, More preferably, it is 3-16 mass %, More preferably, it is 6-13 mass %. By being defined in such a range, the effect of the present invention, stability when made into an emulsion, or antistatic property can be improved.

(Second embodiment)

Next, the 2nd embodiment which actualized the synthetic fiber by this invention is demonstrated. The processing agent of 1st Embodiment is adhered to the synthetic fiber of this embodiment. The form of the processing agent at the time of making a processing agent adhere to a synthetic fiber may be the dilution solution diluted with the dilution solvent, or an organic solvent solution or aqueous liquid may be sufficient as it. The synthetic fiber of this embodiment is manufactured through the process of making a processing agent adhere to a synthetic fiber in the form of dilution solutions, such as an aqueous liquid, for example, spinning|fiber-formation, an extending|stretching process, etc., for example. The diluent made to adhere to the synthetic fiber may evaporate water|moisture content by a drying process.

Specific examples of the synthetic fiber to be produced are not particularly limited, and for example, (1) polyester fibers such as polyethylene terephthalate, polypropylene terephthalate, and polylactic acid ester, (2) polyamide such as nylon 6 and nylon 66 and (3) polyacrylic fibers such as polyacryl and modacryl, and (4) polyolefin fibers such as polyethylene and polypropylene.

Although there is no restriction|limiting in particular in the amount by which a processing agent is made to adhere to a synthetic fiber, It is preferable to make it adhere so that it may become a ratio of 0.1-3 mass % (solvent, such as water) with respect to synthetic fiber. According to such a structure, the effect of this invention can be improved more. In addition, there is no restriction|limiting in particular in the method of making a processing agent adhere, For example, well-known methods, such as the roller oil supply method, the guide oil supply method using the metering pump, the immersion oil supply method, and the spray oil supply method, are employable.

According to the processing agent and synthetic fiber of the said embodiment, the following effects can be acquired.

(1) In the processing agent of the said embodiment, a smoothing agent, a nonionic surfactant, and an ionic surfactant are included, a smoothing agent contains the above-mentioned ester A1, Furthermore, the ester A1 in a smoothing agent in the ratio of 40-100 mass % It was constituted so as to contain an alkylene oxide adduct of an aliphatic alcohol having 4 to 24 carbon atoms having a branched chain structure as a nonionic surfactant. Therefore, scattering of the oil agent in the spinning process can be reduced. Therefore, in the synthetic fiber obtained, the various functions of a processing agent can be exhibited efficiently. In addition, it is possible to improve the stability of the emulsion in water of poor quality such as hard water. Therefore, the manufacturing stability of a yarn can be improved irrespective of water quality.

In addition, you may change the said embodiment as follows.

- You may preserve|save the processing agent of this embodiment in the form of the aqueous liquid containing water. The content rate of the processing agent and water in an aqueous liquid is not specifically limited. When the content rate of the processing agent in an aqueous liquid shall be 100 mass parts, it is preferable that the content rate of the water in an aqueous liquid is 5-30 mass parts, More preferably, it is 5-20 mass parts. By prescribing at such a compounding ratio, while being able to improve the handling property of an aqueous liquid, time-lapse|temporality stability can be improved. The type of water used in the preparation of the aqueous solution is not particularly limited, and may be distilled water containing almost no impurities, hard water containing Ca ions, Mg ions, or the like, or soft water.

- In the processing agent of this embodiment, within the range which does not impair the effect of this invention, it is normal to processing agents, such as a stabilizing agent for quality maintenance of a processing agent, an antistatic agent, a coupling agent, antioxidant, a ultraviolet absorber, and an antifoaming agent (silicone type compound) You may further mix the components used as

Specific examples of the antioxidant include (1) 1,3,5-tris(3',5'-di-t-butyl-4-hydroxybenzyl)isocyanuric acid, 1,3,5-tris (4-t-Butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanuric acid, 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl- 4-hydroxybenzyl)benzene, 2,2'-methylene-bis(4-methyl-6-t-butylphenol), 1,1,3-tris(2-methyl-4-hydroxy-5-t- Butylphenyl)butane, tetrakis[methylene-3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionate]methane, triethyleneglycol-bis[3-(3-t) -Butyl-5-methyl-4-hydroxyphenyl) propionate] and other phenolic antioxidants, (2) octyldiphenylphosphite, trisnonylphenyl phosphite, tetratridecyl-4,4'-part Phosphite-based antioxidants such as thylidene-bis-(2-t-butyl-5-methylphenol) diphosphite, (3) 4,4'-thiobis-(6-t-butyl-3-methylphenol) and thioether-based antioxidants such as dilauryl-3,3'-thiodipropionate. These antioxidants may be used independently and may be used in combination of 2 or more type.

Example

Hereinafter, in order to demonstrate the structure and effect of this invention more concretely, although an Example etc. are mentioned, this invention is not limited to these Examples. In addition, in the description of the following examples and comparative examples, a part means a mass part, and % means mass %.

Test division 1 (preparation of processing agent for synthetic fibers)

The processing agent used for each Example and each comparative example was obtained by the following preparation method using each component shown in Tables 1-4.

Table 1 shows the esters Al (A1-1 to 14) represented by the above formula (3). The type of ester A1 is shown in the "Ester Al" column of Table 1. In Formula 3, the type of R ¹ , X ¹ , Y ¹ , and Z ¹ is shown in the “R ¹ ” column, “X ¹ ” column, “Y ¹ ” column, and “Z ¹ ” column in Table 1, respectively. In addition, the total number of carbon atoms of X ¹ , Y ¹ , and Z ¹ is shown in the “sum of carbon number of X ¹ , Y ¹ , and Z ¹ ” column of Table 1.

For reference, a synthesis example of 2-propylheptyloleate (Al-1) is shown below.

Synthesis of 2-propylheptyloleate (A1-1)

282 g (1 mol) of oleic acid and 158 g (1 mol) of 2-propylheptyl alcohol were put into a flask, melted at 75° C. under nitrogen gas, and 0.6 g of para-toluenesulfonic acid was added as a catalyst, and reduced pressure of 2 mmHg at 120° C. It was reacted for 4 hours under The catalyst was then returned to normal pressure at 105° C. under nitrogen gas, and an adsorbent was added to treat the catalyst. Then, the mixture was filtered at 90° C. to obtain a mixture containing ester A1-1.

In order to separate trace impurities (by-product, unreacted alcohol, unreacted fatty acid, etc.) from ester A1-1 obtained by the above method, isolation treatment was performed by column chromatography using silica gel.

Ester A1-1 isolated by the column was analyzed by ¹ H-NMR (MERCURY plus NMR Spectrometer System manufactured by VALIAN, 300 MHz, CDCl ₃ ). It was confirmed by NMR that there was a doublet peak at 3.9 to 4.1 ppm, that is, a peak indicating that X ¹ in Formula 3 is a hydrocarbon group (and a triplet peak when X ¹ is a hydrogen atom). In addition, it was confirmed by GC-MS that there was a molecular ion peak (m/z=422) of MS.

Table 2 shows the esters A2 (A2-1 to 3) represented by the above formula (4). The type of ester A2 is shown in the "Ester A2" column of Table 2. The types of R ² , X ² , Y ² , and Z ² in the formula (4) are shown in the “R ² ” column, “X2” column, “Y2” column, and “Z2” column in Table 2, respectively.

・Preparation of treatment agent (Example 1)

50% of 2-propylheptyloleate (A1-1) as a leveling agent, 10% of a random adduct (B-1) of 10 mol of ethylene oxide and 8 mol of propylene oxide of isohexanol as a nonionic surfactant, cured 15% of an ethylene oxide adduct (b-1) of 20 moles of castor oil, 15% of an ethylene oxide adduct of 7 moles (b-2) of oleic acid, and polyoxyethylene (2 moles: the number of moles of ethylene oxide added as an ionic surfactant) (hereinafter the same).) 4.9% (C-1) of a salt of a phosphoric acid ester of lauryl ether and potassium, 4% of sodium secondary alkylsulfonate (C 13-15) (C-2), and oleic acid 1% of potassium (C-3) and 0.1% of 1,1,3-tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane (D-1) as an antioxidant were uniformly mixed A mixture as a treatment agent of Example 1 was obtained.

-Preparation of processing agent (Examples 2-33 and Comparative Examples 1-5)

Similar to preparation of the processing agent of Example 1, the processing agent of Examples 2-33 and Comparative Examples 1-5 was prepared using the component shown in Tables 3 and 4. In addition, in Tables 3 and 4, while showing the kind of each component in a processing agent, the compounding ratio (%) of each component at the time of making a processing agent 100 % is shown.

The type and content of the leveling agent in the processing agent of each example, the type and content of the nonionic surfactant, the type and content of the ionic surfactant, and the type and content of other components, the "leveling agent" column in Tables 3 and 4, " The term "ionic surfactant" and "ionic surfactant" are as shown in the "other component" column, respectively. In addition, the content mass ratio of ester A1 in the smoothing agent is "mass ratio: ester A1/ smoothing agent" in Table 1, when the sum of the content ratios of ester Al and ester A2 is 100%, the content mass ratio of ester A1 , shown in the "mass ratio: ester A1/(ester A1+ester A2)" column of Tables 3 and 4.

In Tables 3 and 4,

a-1: 2-dodecylhexadecyl oleate

a-2: rapeseed oil

a-3: mineral oil (180 redwood seconds, 30 ℃)

a-4: 2-ethyltridecylpropionate

a-5: diester of 2-decyltetradecanol and thiodipropionic acid

a-6: diester of polyoxyethylene (3 mol) lauryl ether and thiodipropionic acid

B-1: Random adduct of 10 mol of ethylene oxide and 8 mol of propylene oxide of isohexanol

B-2: Block adduct of 15 moles of propylene oxide and 13 moles of ethylene oxide of 2-ethylhexanol

B-3: Random adduct of 8 moles of ethylene oxide and 6 moles of propylene oxide of 2-octyldodecanol

b-1: 20 mol adduct of ethylene oxide of hydrogenated castor oil

b-2: 7 mol adduct of oleic acid with ethylene oxide

b-3: 7 mol adduct of ethylene oxide of lauryl alcohol

b-4: diester of ethylene oxide 24 mole adduct of trimethylolpropane and stearic acid

b-5: Ethylene oxide 25 mole adduct of hydrogenated castor oil

b-6: 15 moles of ethylene oxide adduct of tallow alkylamine

b-7: random adduct of 10 moles of ethylene oxide and 4 moles of propylene oxide of tetradecyloctadecanol

C-1: salt of phosphoric acid ester of polyoxyethylene (2 mol) lauryl ether and potassium

C-2: sodium secondary alkylsulfonate (C13-15)

C-3: Potassium Oleate

D-1: 1,1,3-tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane

D-2: triethylene glycol-bis[3-(3-t-butyl-5-methyl-4-hydroxyphenyl)propionate]

D-3: polydimethylsiloxane (viscosity 20mm ₂ /s (25°C))

indicates

Test category 2 (evaluation of treatment agent)

・Manufacturing of drawn yarn

To each treatment agent obtained as described above, a predetermined amount of ion-exchange water was added and uniformly mixed to prepare an aqueous solution having a concentration of 10% of the treatment agent. A chip of polyethylene terephthalate having an intrinsic viscosity of 0.64 and a titanium oxide content of 0.2% was dried by a conventional method, and then spun at 295°C using an extruder. After being discharged from the nozzle and solidified by cooling, the aqueous liquid described above was applied to the traveling thread by a guide oil supply method using a metering pump to make it 1.0% as a treatment agent to the traveling thread. Thereafter, it was collected by a guide and taken up at a speed of 1400 m/min by a take-up roller heated to 90°C, and then stretched by 3.2 times between the take-up roller and a drawing roller rotating at a speed of 4800 m/min to 83.3 A decitex (75 denier) 36 filament drawn yarn was prepared. In the above-mentioned manufacturing method, the scattering property was evaluated. In addition, the stability of the emulsion in water with poor water quality related to the treatment agent was evaluated as hard water stability by the following method. The results are shown in Tables 3 and 4.

・Evaluation of acidity

When the package of the drawn yarn obtained by the above method was obtained, the scattering condition in the oil ring nozzle was visually confirmed for 10 minutes. Fragility was evaluated by the following evaluation criteria. The results are shown in the "Fragility" column of Tables 3 and 4.

○○○ (excellent): No scattering

○○ (good): Rarely observed scattering

○ (Possible): When scattering is confirmed, but in a small amount

X (defect): When a large amount of scattering is always confirmed

・Evaluation of hard water stability

For each treatment agent prepared in Test Category 1, 15 parts of the treatment agent and 85 parts of the following hard water were uniformly mixed to prepare an aqueous hard water solution having a concentration of 15% of the treatment agent.

For hard water, water having an electrical conductivity of 130 µS/cm when measured at 25°C was used.

After the further prepared hard water aqueous solution was left still at 30°C for 24 hours, it was visually observed and the precipitated particles were evaluated according to the following evaluation criteria. The results are shown in the "Hard water stability" column of Tables 3 and 4.

・Evaluation criteria for precipitated particles

○○○ (excellent): When no precipitated particles are observed

○○ (good): When a small amount of precipitated particles is observed

○ (Possible): When precipitated particles are observed but dispersed

x (defective): when a large amount of precipitated particles is observed and precipitation also occurs

As is evident also from the results of Tables 3 and 4, the processing agent of each Example was evaluation more than possible for evaluation of scattering property and hard water stability. ADVANTAGE OF THE INVENTION According to this invention, while being able to reduce the scattering of the oil agent in a spinning process, emulsion stability in water of poor quality, such as hard water, can be improved.

Claims (7)

A processing agent for synthetic fibers containing a smoothing agent, a nonionic surfactant and an ionic surfactant, wherein the smoothing agent contains ester A1 represented by the following formula (1), and 40 to 100% by mass of the ester A1 in the smoothing agent A processing agent for synthetic fibers, wherein the nonionic surfactant contains an alkylene oxide adduct of an aliphatic alcohol having 4 to 24 carbon atoms having a branched chain structure.
<Formula 1>

(In Formula 1,
R ¹ : A saturated hydrocarbon group having 7 to 23 carbon atoms or an unsaturated hydrocarbon group having 7 to 23 carbon atoms.
X ¹ , Y ¹ , Z ¹ : a hydrogen atom, a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 21 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms, a linear unsaturated hydrocarbon group having 3 to 21 carbon atoms A hydrogen group or an unsaturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms.
However, at least one of X ¹ and Y ¹ is a methyl group, an ethyl group, or the hydrocarbon group, and the total number of carbon atoms of X ¹ , Y ¹ and Z ¹ is 5 to 21.) The processing agent for synthetic fibers according to claim 1, wherein the smoothing agent further contains ester A2 represented by the following formula (2).
<Formula 2>

(In Formula 2,
R ² : A saturated hydrocarbon group having 7 to 23 carbon atoms or an unsaturated hydrocarbon group having 7 to 23 carbon atoms.
X ² : hydrogen atom
Y ² : hydrogen atom.
Z ² : a hydrogen atom, a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 17 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 17 carbon atoms, a linear unsaturated hydrocarbon group having 3 to 17 carbon atoms, or 3 carbon atoms An unsaturated hydrocarbon group having a branched chain structure of to 17.) The processing agent for synthetic fibers according to claim 2, wherein the ester A1 is contained in a proportion of 55 to 100% by mass, when the sum total of the content of the ester A1 and the ester A2 is 100% by mass. The method according to claim 1, wherein X ¹ in Formula 1 is a methyl group, an ethyl group, a linear saturated hydrocarbon group having 3 to 21 carbon atoms, a saturated hydrocarbon group having a branched chain structure having 3 to 21 carbon atoms, a straight chain having 3 to 21 carbon atoms. The processing agent for synthetic fibers which is an unsaturated hydrocarbon group or an unsaturated hydrocarbon group which has a C3-C21 branched structure. The compound according to claim 1, wherein the nonionic surfactant is a compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms in a ratio of 1 to 100 moles in total with respect to 1 mole of an aliphatic alcohol having 4 to 14 carbon atoms having a branched chain structure. A processing agent for synthetic fibers to contain. The processing agent for synthetic fibers according to claim 1, wherein in the general formula (1), the total number of carbon atoms of X ¹ , Y ¹ and Z ¹ is 6 to 12. The synthetic fiber to which the processing agent for synthetic fibers in any one of Claims 1-6 is adhered, The synthetic fiber characterized by the above-mentioned.