JP2019119966A - Treatment agent for synthetic fiber, and synthetic fiber - Google Patents

Abstract

To provide a treatment agent for synthetic fiber capable of reducing tar dirt, white powder dirt, and fuzz generated in a spinning process, and a synthetic fiber.SOLUTION: There is provided a treatment agent for synthetic fiber containing a smoothing agent, a non-ionic surfactant, and an ionic surfactant, in which the ionic surfactant contains aromatic sulfonate represented by the following formula 1 and aliphatic sulfonate, a mass ratio of content of the aromatic sulfonate based on content of the aliphatic sulfonate is aromatic sulfonate/aliphatic sulfonate=1/5 to 1/10,000. (Formula 1). In the Formula 1, R: a hydrocarbon group having 1 to 18 carbon atoms, and M: an alkali metal, an ammonium group, or an organic amine group.SELECTED DRAWING: None

Description

  The present invention relates to a synthetic fiber treating agent capable of effectively reducing tar stains, white powder stains and fluffs generated in a process of spinning synthetic fibers, and a synthetic fiber to which such a treating agent is attached.

  Generally, in the process of spinning synthetic fibers, from the viewpoint of reducing friction and preventing damage to the fibers such as thread breakage, a process for applying a treating agent for synthetic fibers to the surface of filament yarns of synthetic fibers is performed. is there.

  Conventionally, the processing agent for synthetic fibers indicated by patent documents 1-3 is known. Patent Document 1 discloses a treating agent for synthetic fibers containing a smooth component and an organic sulfonic acid compound in which sulfate ions and chloride ions are reduced to a predetermined ratio. Patent Document 2 discloses a treating agent for synthetic fiber containing thiodipropionic acid ester of predetermined molecular weight, alkali metal salt of secondary sulfonate, and amine salt of phosphoric acid ester. Patent Document 3 discloses a treating agent for synthetic fiber containing an emulsifier and a specific ratio of a specific hydrogenated castor oil derivative.

Patent No. 5668170 gazette JP-A-8-120564 JP, 2006-307352, A

However, in these conventional processing agents for synthetic fibers, coexistence of each function in reduction of tar stain, reduction of white powder stain, and suppression of fuzz generation in the spinning process has not been sufficiently addressed.
The problem to be solved by the present invention is to provide a treating agent for synthetic fibers and a synthetic fiber capable of reducing tar stains, white powder stains and fluffs generated in a spinning process.

  As a result of researches to solve the above problems, the present inventors have found that specific aromatic sulfonates and aliphatics as ionic surfactants in synthetic fiber treatment agents containing a smoothing agent and a nonionic surfactant. It has been found that it is appropriate to use the sulfonate in combination at a predetermined ratio.

  That is, one aspect of the present invention is a treatment agent for synthetic fibers containing a smoothing agent, a nonionic surfactant, and an ionic surfactant, wherein the ionic surfactant is an aromatic compound represented by the following chemical formula 1 A sulfonate, and an aliphatic sulfonate, wherein the mass ratio of the content of the aromatic sulfonate to the content of the aliphatic sulfonate is aromatic sulfonate / aliphatic sulfonate It is characterized by containing in the ratio of = 1/5-1 / 10,000.

(In chemical formula 1,
R ^{1 is} a hydrocarbon group having 1 to 18 carbon atoms,
M ^{1 is an} alkali metal, an ammonium group or an organic amine group. )
The aliphatic sulfonate preferably contains at least one compound selected from a compound represented by the following chemical formula 2 and a compound represented by the following chemical formula 3.

(In chemical formula 2,
a and b each is an integer of 0 or more and an integer satisfying a + b = 5 to 17;
M ^{2 is an} alkali metal, an ammonium group or an organic amine group. )

(In chemical formula 3,
R ² and R ³ each represent a hydrocarbon group having 4 to 12 carbon atoms,
M ³ : an alkali metal, an ammonium group or an organic amine group. )
The non-ionic surfactant is an ether ester compound obtained by condensing a monocarboxylic acid and a dicarboxylic acid with at least one compound selected from an alkylene oxide adduct of castor oil and an alkylene oxide adduct of hydrogenated castor oil. It is preferable that an ether ester compound contains the thing of the mass mean molecular weights 3,000-30,000.

  The ether ester compound is 20-40 mol% of at least one compound selected from an alkylene oxide adduct of castor oil and an alkylene oxide adduct of hydrogenated castor oil, 35-65 mol% of a monocarboxylic acid, and 5 dicarboxylic acids It is preferable that it is comprised from-35 mol% (a total of 100 mol%).

  It is preferable that the said smoothing agent is what contains the sulfur-containing ester compound shown by following Chemical formula 4.

(In chemical formula 4,
R ⁴ and R ⁵ each represent a hydrocarbon group having 12 to 24 carbon atoms,
m, n: each an integer of 1 to 4; )
The ionic surfactant preferably further contains an amine salt of an organic phosphoric acid ester.

  The amine constituting the amine salt of the organic phosphoric acid ester is added in a ratio of 1 to 50 moles of alkylene oxide to 1 mole of diethanolamine, triethanolamine, dibutylethanolamine and monoalkylamine having 4 to 30 carbon atoms. It is preferable that it is at least one selected from the following compounds.

  Assuming that the total content of the leveling agent, the nonionic surfactant, and the ionic surfactant is 100% by mass, 30 to 70% by mass of the leveling agent and 20 to 60% by mass of the nonionic surfactant It is preferable to contain% and the said ionic surfactant in the ratio of 0.1-20 mass%.

  In addition, another aspect of the present invention provides a synthetic fiber characterized in that the above-mentioned treatment agent for synthetic fiber is attached.

  According to the present invention, it is possible to reduce tar stains, white powder stains and fluffs generated in the spinning process.

First Embodiment
First, a first embodiment in which the treatment agent for synthetic fiber according to the present invention (hereinafter referred to as a treatment agent) is embodied will be described. The processing agent of the present embodiment contains a smoothing agent, a nonionic surfactant, and a predetermined ionic surfactant. The ionic surfactant comprises an aromatic sulfonate represented by the following chemical formula 5 and an aliphatic sulfonate, and further, the mass ratio of the content of the aromatic sulfonate to the content of the aliphatic sulfonate. Are contained in the ratio of aromatic sulfonate / aliphatic sulfonate = 1/5 to 1 / 10,000.

(In chemical formula 5,
R ^{1 is} a hydrocarbon group having 1 to 18 carbon atoms,
M ^{1 is an} alkali metal, an ammonium group or an organic amine group. )
There is no restriction | limiting in particular as a smoothing agent used for the processing agent of this embodiment, For example, (1) 1, 4- butanediol dioleate, trimethylol propane trilaurate, trimethylol propane trioleate, glycerol trioleate, penta-triole Ester compounds of polyhydric alcohol and monovalent carboxylic acid such as erythritol tetraoctanoate, (2) diisocetyl thiodipropionate, diisostearyl thiodipropionate, dioleyl thiodipropionate, bis polyoxy acid Ester compounds of polyvalent carboxylic acid and monohydric alcohol such as ethylene lauryl adipate (3) Ester compounds of monohydric alcohol and monohydric carboxylic acid such as oleyl laurate and oleyl oleate (4) Castor oil Natural oils and fats such as palm oil and rapeseed oil It is. One of these components may be used alone, or two or more thereof may be used in combination. Among these, one containing an ester compound (sulfur-containing ester compound) of a polyvalent carboxylic acid having a sulfur element in a molecule shown by the following chemical formula 6 and a monohydric alcohol is preferable. By using such a compound, the effects of the present invention can be further improved, and in particular, tar stains and fluffs generated in the yarn production process can be further reduced.

(In chemical formula 6,
R ⁴ and R ⁵ each represent a hydrocarbon group having 12 to 24 carbon atoms,
m, n: each an integer of 1 to 4; )
In Chemical Formula 6, R ⁴ and R ⁵ each independently represent a lauryl group, tridecyl group, isotridecyl group, myristyl group, isomyristyl group, cetyl group, isocetyl group, stearyl group, isostearyl group, arachidyl group, isoarachidyl group, behenyl group, It is a hydrocarbon group having 12 to 24 carbon atoms, such as isobehenyl group, lignoceryl group, isolignocellyl group, palmitylale group, oleyl group, eicosenyl group, docosenyl group, tetracosenyl group and the like.

  There is no restriction | limiting in particular as a nonionic surfactant provided to the processing agent of this embodiment, For example, the C2-C4 alkylene selected from (1) organic acid, organic alcohol, organic amine, and organic amide is mentioned. Oxide-added compounds such as polyoxyethylene laurate, polyoxyethylene oleate, polyoxyethylene laurate methyl ether, polyoxyethylene octyl ether, polyoxypropylene lauryl ether methyl ether, polyoxybutylene oleyl ether, Polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene nonylphenyl ether, polyoxyethylene lauryl aminoether, polyoxyethylene lauroamide ether Etc., (2) Sorbitan monooleate, sorbitan trioleate, polyhydric alcohol partial ester type nonionic surfactant such as glycerin monolaurate, (3) polyethylene glycol dioleate, polyoxyethylene Sorbitan monooleate, polyoxybutylene sorbitan trioleate, polyoxypropylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene propylene hydrogenated castor oil trioleate, polyoxyethylene hydrogenated castor oil trilaurate, ethylene oxide (hereinafter referred to as EO) addition of castor oil Products and etherified compounds such as ether ester compounds obtained by condensing monocarboxylic acid and dicarboxylic acid with at least one compound selected from EO adducts of hydrogenated castor oil and the like Kylene polyhydric alcohol fatty acid ester type nonionic surfactant, (4) alkylamide type nonionic surfactant such as diethanolamine monolauroamide, (5) polyoxyalkylene fatty acid amide type nonionic surfactant such as (5) polyoxyethylene diethanolamine monooleylamide Agents and the like. One of these components may be used alone, or two or more thereof may be used in combination. Among these, ether ester compounds obtained by condensing a monocarboxylic acid and a dicarboxylic acid with at least one compound selected from an alkylene oxide adduct of castor oil and an alkylene oxide adduct of hydrogenated castor oil are preferable. Further, the ether ester compound preferably contains one having a mass average molecular weight (MW) of 3,000 to 30,000. By using these compounds, the effects of the present invention can be further improved, and in particular, the fluff generated in the yarn production process can be further reduced. Examples of the alkylene oxide used for the ether ester compound include EO, propylene oxide (hereinafter referred to as PO), butylene oxide (hereinafter referred to as BO) and the like. Examples of monocarboxylic acids include lauric acid, myristic acid, myristoleic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, arachidic acid, eicosenic acid, behenic acid, Erucic acid etc. are mentioned. Examples of dicarboxylic acids include succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, fumaric acid, and maleic acid. A more preferable ether ester compound is one obtained by adding 20 moles of EO to 1 mole of hardened castor oil and crosslinking with adipic acid and adding a compound (MW 10,000) terminated with oleic acid and 25 moles of EO to 1 mole of castor oil The product is cross-linked with maleic acid, stearic acid end-esterified compound (MW 5,000), 20 moles of EO per mole of hardened castor oil, 20 moles of PO randomly added with 20 moles of PO cross-linked with maleic acid, and esterified with oleic acid Compounds (MW 18,000) and the like.

  Here, using a high-speed gel permeation chromatography apparatus HLC-8320GPC manufactured by Tosoh Corp., the mass average molecular weight can be adjusted to a separation column TSK gel Super H-2000, H-3000, H-4000 manufactured by Tosoh Corp. at a sample concentration of 5 mg / cc. It can be determined from the peak injected and measured with a differential refractive index detector.

  In the case of an ether ester compound obtained by condensing a monocarboxylic acid and a dicarboxylic acid with at least one compound selected from an alkylene oxide adduct of castor oil and an alkylene oxide adduct of hydrogenated castor oil, the molar ratio of each component is particularly limited. Absent. 20-40 mol% of at least one compound selected from the alkylene oxide adduct of castor oil and the alkylene oxide adduct of hardened castor oil, 35-65 mol% of monocarboxylic acid, and 5-35 mol% of dicarboxylic acid (total Those composed of 100 mol%) are preferred. With this configuration, the effects of the present invention can be further improved, and in particular, the fluff generated in the yarn production process can be further reduced.

The ionic surfactant to be provided for the treatment agent of the present embodiment comprises the aromatic sulfonate represented by the above-mentioned chemical formula 5 and an aliphatic sulfonate, and further, the content of the aliphatic sulfonate relative to the content of the aliphatic sulfonate. The mass ratio of the content of aromatic sulfonate is such that the ratio of aromatic sulfonate / aliphatic sulfonate = 1/5 to 1 / 10,000. In Formula 5, R ¹ is a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, a heptyl group, an octyl group, an octyl group, a nonyl group, a decyl group, a lauryl group, a tridecyl group, a mydecyl group, a cetyl group, a stearyl group, etc. It is a C1-C18 hydrocarbon group. M ¹ represents an alkali metal such as lithium, sodium or potassium, an ammonium group, a methyl ammonium group, an ethyl ammonium group, a propyl ammonium group, a butyl ammonium group, a dimethyl ammonium group, a diethyl ammonium group, a dipropyl ammonium group, a dibutyl ammonium group, Trimethyl ammonium group, triethyl ammonium group, tripropyl ammonium group, tributyl ammonium group, tetramethyl ammonium group, tetraethyl ammonium group, tetrapropyl ammonium group, tetrabutyl ammonium group, methanol ammonium group, ethanol ammonium group, propanol ammonium group, butanol ammonium group Group, dimethanol ammonium group, diethanol ammonium group, dipropanol ammonium Ammonium or (EO18) hexyl aminoether group such as a dibasic group, dibutanol ammonium group, trimethanol ammonium group, triethanol ammonium group, triethanol ammonium group, tripropanol ammonium group, tributanol ammonium group, (PO16) octyl amino ether group, (EO 6 PO 6 ) Decyl amino ether group, (EO 12) lauryl amino ether group, (EO 10) myristyl amino ether group, (EO 8) cetyl amino ether group, (EO 6) stearyl amino ether group, (EO 4) oleyl amino ether group, ethanolamine, Organic amine groups such as diethanolamine, triethanolamine, dimethylethanolamine, diethylethanolamine, dipropylethanolamine and dibutylethanolamine The numerical values in parentheses indicate the number of added moles of each group (the same applies hereinafter). One of these components may be used alone, or two or more thereof may be used in combination.

  More specific aromatic sulfonates include sodium toluenesulfonate, potassium ethylbenzenesulfonate, lithium propylbenzenesulfonate, sodium butylbenzenesulfonate, potassium hexylbenzenesulfonate, lithium octylbenzenesulfonate, nonylbenzenesulfonic acid Sodium, nonylbenzenesulfonic acid triethanolamine, potassium decylbenzenesulfonate, sodium dodecylbenzenesulfonate, potassium dodecylbenzenesulfonate, sodium tetradecylbenzenesulfonate, potassium octadecylbenzenesulfonate and the like can be mentioned. Among these, sodium toluene sulfonate, sodium nonylbenzene sulfonate, triethanolamine nonylbenzene sulfonate, sodium dodecylbenzene sulfonate, potassium dodecylbenzene sulfonate, etc. aromatic sulfone having an alkyl group having 1 to 12 carbon atoms in the molecule Acid salts are preferred.

  The aliphatic sulfonate is not particularly limited, and examples thereof include sodium 1-octyl sulfonate, potassium 1-decane sulfonate, sodium 1-lauryl sulfonate, sodium 1-myristyl sulfonate, potassium 1-cetyl sulfonate, Sodium stearyl sulfonate, sodium isooctyl sulfonate, sodium isodecane sulfonate, sodium isolauryl sulfonate, sodium isomyristyl sulfonate, sodium isocetyl sulfonate, sodium isostearyl sulfonate, potassium diisobutyl sulfosuccinate, dioctyl sulfosuccinic acid Examples include sodium acid and sodium dinonylsulfosuccinate. One of these components may be used alone, or two or more thereof may be used in combination. Among these, those containing at least one compound selected from a compound represented by the following chemical formula 7 and a compound represented by the following chemical formula 8 are preferable. By using these compounds, the effects of the present invention can be further improved, and in particular, tar stains and white powder stains generated in the spinning process can be further reduced.

(In chemical formula 7,
a and b each is an integer of 0 or more and an integer satisfying a + b = 5 to 17;
M ^{2 is an} alkali metal, an ammonium group or an organic amine group. )

(In Formula 8,
R ² and R ³ each represent a hydrocarbon group having 4 to 12 carbon atoms,
M ³ : an alkali metal, an ammonium group or an organic amine group. )
In Formula 7, a and b are each an integer of 0 or more and an integer satisfying a + b = 5 to 17. Details of M ² are the same as M ¹ described for Formula 5 above.

In the chemical formula 8, R ² and R ³ are each a hydrocarbon group having 4 to 12 carbon atoms such as butyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, dodecyl group, etc., and for M ³ The details are the same as M ¹ described for Chemical Formula 5.

The concrete of 7, preferably a value of a + b is 10 to 14, compound ^{M 2} is sodium (mixture), and the like. Preferably, dioctyl sulfosuccinate sodium salt and the like can be mentioned as the chemical formula (8).

  The ionic surfactant used for the treatment agent of the present embodiment comprises an aromatic sulfonate and an aliphatic sulfonate as described above, and further, the aromatic sulfonic acid with respect to the content of the aliphatic sulfonate. The mass ratio of the salt content is such that the ratio of aromatic sulfonate / aliphatic sulfonate = 1/5 to 1 / 10,000. By defining the ratio within such a range, it is possible to reduce tar stains, white powder stains and fluffs generated in the spinning process.

  Those further containing an amine salt of an organic phosphate as an ionic surfactant are preferred. By using such a compound, the effects of the present invention can be further improved, and in particular, tar stains and fluffs generated in the yarn production process can be further reduced. The amine constituting the amine salt of the organic phosphoric acid ester is added at a ratio of 1 to 50 moles of alkylene oxide to 1 mole of diethanolamine, triethanolamine, dibutylethanolamine and monoalkylamine having 4 to 30 carbon atoms. It is more preferable that the compound is Specific amine salts of organic phosphoric acid esters include lauryl phosphate diethanolamine salt, myristyl phosphate triethanolamine salt, cetyl phosphate dibutylethanolamine salt, isocetyl phosphate (EO10) lauryl amino ether salt, stearyl phosphate (PO6) lauryl amino acid Ether salt, isostearyl phosphate (EO8) stearyl amino ether salt, arachidyl phosphate (BO4) cetyl amino ether salt, iso arachidyl phosphate (EO6 PO6) behenyl amino ether salt, behenyl phosphate (EO15) lignoceryl amino ether salt, isobehenyl Phosphate diethanolamine salt, Lignoceryl phosphate triethanolamine salt, isolignoceryl phosphate Close butyl ethanolamine salt, oleyl phosphate (EO15) stearyl amino ether salts, (EO4) oleyl phosphate closed butyl ethanolamine salts. One of these components may be used alone, or two or more thereof may be used in combination. In addition, metal salts of alkyl phosphates such as isostearyl phosphate potassium salt may be further blended.

  In the processing agent of the present embodiment, the content ratio of the above-described smoothing agent, nonionic surfactant, and ionic surfactant is not particularly limited. Assuming that the total content of the smoothing agent, the nonionic surfactant, and the ionic surfactant is 100% by mass, the smoothing agent is 30 to 70% by mass, and the nonionic surfactant is 20 to 60% by mass. And what contains an ionic surfactant in the ratio of 0.1-20 mass% is preferable. By defining the blending amount range, the effects of the present invention can be further improved, and tar stains, white powder stains and fluffs generated in the yarn production process can be further reduced.

Second Embodiment
Next, a second embodiment in which the synthetic fiber of the present invention is embodied will be described. The synthetic fiber of the present embodiment is a synthetic fiber to which the treatment agent of the first embodiment is attached. The synthetic fiber is not particularly limited. For example, (1) polyester fiber such as polyethylene terephthalate, polypropylene terephthalate, polylactic acid ester, (2) polyamide fiber such as nylon 6, nylon 66, (3) polyacrylic resin, moda acrylic resin And polyacrylic fibers such as (4) polyolefin fibers such as polyethylene and polypropylene, and (5) polyurethane fibers.

  There is no particular limitation on the ratio of adhering the treating agent of the first embodiment to the synthetic fiber, but the treating agent of the first embodiment (without the solvent) is a ratio of 0.1 to 3% by mass to the synthetic fiber It is preferable to make it adhere. With this configuration, the effects of the present invention are further improved. Further, the method for adhering the treatment agent of the first embodiment is not particularly limited, and for example, a known method such as a roller oiling method, a guide oiling method using a measuring pump, an immersion oiling method, a spray oiling method Can. As a form at the time of making the processing agent of 1st Embodiment adhere to a synthetic fiber, the organic solvent solution, an aqueous liquid, etc. are mentioned, for example.

According to the treatment agent and the synthetic fiber of the above embodiment, the following effects can be obtained.
(1) In the processing agent of the above embodiment, the smoothing agent and the nonionic surfactant, and the specific ionic surfactant were used in combination at a predetermined ratio. Therefore, it is possible to effectively reduce tar stains particularly generated around the godet roller in the process of spinning synthetic fibers, white powder stains accumulated around the machine base, and fluffs of synthetic fiber yarns. Thereby, the synthetic fiber of the present embodiment can exhibit excellent process passability.

The above embodiment may be modified as follows.
The treatment agent of the present embodiment may be used as a stabilizer for maintaining the quality of the treatment agent or an antistatic agent, such as a binder, an antioxidant, an ultraviolet light absorber, etc., as long as the effects of the present invention are not impaired. The components that are usually used for synthetic fiber treatment may be further blended.

  Hereinafter, examples and the like will be described in order to make the configuration and effects of the present invention more specifically, but the present invention is not limited to these examples. In the following examples and comparative examples, "part" means "mass part" and "%" means mass%.

Test Category 1 (Synthesis of Ether Ester Compound as Nonionic Surfactant)
Synthesis of Ether Ester Compound (N-1) A compound obtained by adding 20 moles of EO as an alkylene oxide to 1 mole of hardened castor oil and adipic acid as a dicarboxylic acid were esterified under ordinary conditions. Thereafter, oleic acid was further added as a monocarboxylic acid, and the subsequent esterification was performed to obtain an ether ester compound (N-1).

Synthesis of ether ester compounds (N-2, N-3 and rN-1 to rN-3) Ether ester compounds (N-2 and rN-1 to rN-) in the same manner as the synthesis of ether ester compound (N-1) 3) was synthesized. Table 1 shows the contents of the alkylene oxide adduct, monocarboxylic acid and dicarboxylic acid constituting each ether ester compound.

In Table 1, each notation shows the following.
X-1: Addition of 20 moles of EO to 1 mole of hardened castor oil X-2: Addition of 25 moles of EO to 1 mole of castor oil X-3: Addition of 20 moles of EO to 1 mole of EO per mol of hardened castor oil X- 4: 40 moles of EO added to 1 mole of hardened castor oil X-5: 12 moles of EO added to 1 mol of hardened castor oil X-6: Polyethylene glycol (molecular weight 600): PEG 600
Y-1: oleic acid Y-2: stearic acid Y-3: lauric acid Z-1: adipic acid Z-2: maleic acid Test Category 2 (preparation of a treatment for synthetic fibers)
Preparation of processing agent for synthetic fiber (Example 1) 40 parts of trimethylolpropane trioleate (rL-1), 15 parts of palm oil (rL-3) as a smoothing agent, and dioleyl thiodipropionate (L-) 1 part: 5 parts, 20 mol of EO added per 1 mol of hardened castor oil as a nonionic surfactant is crosslinked with adipic acid, 5 parts of compound (N-1) terminated with oleic acid, 1 mol of hardened castor oil 15 parts of a compound (rN-1) esterified with 3 mol of EO added with EO and 13 parts of a compound (rN-2) obtained by addition of 12 mol of EO to 1 mol of hardened castor oil, Sorbitan monooleate (rN-4) ) 5 parts, 0.1 parts of sodium dodecylbenzene sulfonate (SA-1) as an ionic surfactant, alkyl sulfonate Nato shown in the above formula 7 1 part of a compound (mixture) (SB-1) in which the value of a + b is 8 to 12 and M ² is sodium, and 0.9 parts of oleyl phosphate (EO 15) stearyl amino ether salt (SC-1) The synthetic fiber treating agent of Example 1 was prepared by uniform mixing in proportions. In addition, in Table 5, the ratio of each component at the time of making the sum total of each content of a smoothing agent, a nonionic surfactant, and an ionic surfactant into 100% is shown (following the same).

Preparation of Treating Agent for Synthetic Fiber (Example 2) Each component shown in Table 5 was used to prepare in the same manner as the treating agent for synthetic fiber of Example 1. However, in addition to the raw materials shown in Table 5, 0.5 parts of 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane as an antioxidant is used per 100 parts of the treating agent. Added.

Preparation of treating agent for synthetic fibers (Examples 3 to 13 and Comparative Examples 1 to 6) Using each component shown in Table 5, the same procedure as in the method for preparing the treating agent for synthetic fiber of Example 1 is carried out. The synthetic fiber treatment agents of Examples 3 to 13 and Comparative Examples 1 to 6 were prepared.

Table 2 shows the types of R ¹ and M ¹ of the aromatic sulfonate shown in the above chemical formula 5 for each ionic surfactant blended in the treatment agent.
Table 3 shows the a + b value of the aliphatic sulfonate and the type of M ² for each ionic surfactant blended in the treatment agent. In addition, the types of R ² and R ^{3 and} the type of M ³ of the aliphatic sulfonate represented by the chemical formula 8 are shown.

Table 4 shows the types of R ⁴ and R ⁵ and the values of m and n of the sulfur-containing ester compounds shown in Chemical Formula 6 for each leveling agent blended in the treating agent.

In Tables 2 to 5, each notation shows the following.
L-1: dioleyl thiodipropionate L-2: diisocetyl thiodipropionate L-3: diisostearyl thiodipropionate rL-1: trimethylolpropane trioleate rL-2: oleyl oleate rL- 3: Palm oil rL-4: Rapeseed white rind oil rL-5: Glycerin trioleate N-1: Compound obtained by adding 20 moles of EO to 1 mole of hardened castor oil cross-linked with adipic acid and esterified with oleic acid (MW 10,000)
N-2: A compound obtained by cross-linking with 25 mol of EO added to 1 mol of castor oil with maleic acid and terminated with stearic acid (MW 5,000)
N-3: A compound obtained by crosslinking 20 mol of EO and 20 mol of PO randomly with 1 mol of hardened castor oil with maleic acid and esterified with oleic acid (MW 18,000)
rN-1: Compound obtained by esterifying 40 mol of EO with 1 mol of hydrogenated castor oil with 3 mol of lauric acid rN-2: Compound obtained by adding 12 mol of EO to 1 mol of hydrogenated castor oil rN-3: Polyethylene glycol (molecular weight 600) dioleate rN -4: sorbitan monooleate SA-1: sodium dodecyl benzene sulfonate SA-2: sodium nonyl benzene sulfonate SA-3: sodium toluene sulfonate SA-4: potassium dodecyl benzene sulfonate SA-5: nonyl benzene sulfonic acid Triethanolamine SB-1: Compound (mixture) in which the value of a + b is 8 to 12 and M ² is sodium in the sodium alkyl sulfonate represented by the above-mentioned Chemical formula 7
SB-2: Compound (mixture) in which the value of a + b is 10 to 14 and M ² is sodium in the sodium alkyl sulfonate represented by the above-mentioned Chemical Formula 7
SB-3: sodium dioctyl sulfosuccinate SB-4: sodium 1-lauryl sulfonate SC-1: oleyl phosphate (EO15) stearyl aminoether salt SC-2: isocetyl phosphate (EO10) lauryl amino ether salt SC-3: ( EO4) Oleyl phosphate dibutyl ethanolamine salt rSC-1: isostearyl phosphate potassium salt Test Category 3 (Evaluation of synthetic fiber treatment agent)
-Evaluation of heat-resistant tar The synthetic fiber treatment agent of each example prepared in Test Category 2 was uniformly diluted with ion-exchanged water or an organic solvent as necessary to make a 15% solution. After drying a chip of polyethylene terephthalate by a conventional method, melt spinning is carried out using an extruder, and the above-mentioned 15% solution is fed to a running yarn after discharging from a die and cooling and solidifying. It was attached by the method. It oiled so that the adhesion amount of a synthetic fiber processing agent might be 0.6 mass% (a solvent is not included). Then, it was converged with a guide and stretched through a stretching roll at 245 ° C. and a relaxation roll so as to have a total draw ratio of 5.5 times to obtain a stretched yarn of 1100 dtex 192 filaments as a 10 kg cut cheese. The heat resistance (tar) was evaluated as follows, as soiling (tar) of the godet roller after spinning for 48 hours. The results are shown in Table 5.

· Evaluation criteria for heat resistant tar ◎: Almost no dirt (tar) is recognized.
○: Slight (tar) is slightly recognized.
X: Dirt (tar) is recognized.
××: severe stain (tar) is observed.

Evaluation of Fuzz Before winding the yarn as cheese in the above-mentioned spinning process, the number of fuzz per hour was measured with a fluff counting device (manufactured by Toray Engineering Co., Ltd.) and evaluated based on the following criteria. The results are shown in Table 5.

-Evaluation criteria for hairiness ◎: The number of hairiness measured is zero.
○: The number of fluffs measured is 2 or less (but excluding 0).
X: 3 to 9 measured fuzz numbers.
××: 10 or more measured fuzz numbers.

Evaluation of White Powder Generation In the above-mentioned spinning process, the accumulation (dirt) of white powder on the winder top plate after spinning for 48 hours was evaluated as follows. The results are shown in Table 5.

• Evaluation criteria for white powder generation :: Almost no white powder accumulation is observed.
○: White powder accumulation is slightly observed.
X: White powder accumulation is observed.
××: A large amount of white powder accumulation is observed.

  As is clear from the results in Table 5, the synthetic fiber treatment agent of each example was good in all of the evaluations of heat resistant tar, white powder generation, and fluff. According to the present invention, it is possible to reduce tar stain around the godet roller, white powder stain around the machine base and fuzz in the process of spinning synthetic fibers, and to obtain good process passability of the synthetic fibers. It occurs.

Claims (9)

What is claimed is: 1. A processing agent for synthetic fibers, comprising a smoothing agent, a nonionic surfactant, and an ionic surfactant,
The ionic surfactant comprises an aromatic sulfonate represented by the following chemical formula 1 and an aliphatic sulfonate, and the content of the aromatic sulfonate relative to the content of the aliphatic sulfonate. The processing agent for synthetic fibers, characterized in that the mass ratio of (A) is (aromatic sulfonate / aliphatic sulfonate = 1/5 to 1 / 10,000).
(In chemical formula 1,
R ^{1 is} a hydrocarbon group having 1 to 18 carbon atoms,
M ^{1 is an} alkali metal, an ammonium group or an organic amine group. ) The processing agent for synthetic fiber according to claim 1, wherein the aliphatic sulfonate contains at least one compound selected from a compound represented by the following chemical formula 2 and a compound represented by the following chemical formula 3.
(In chemical formula 2,
a and b each is an integer of 0 or more and an integer satisfying a + b = 5 to 17;
M ^{2 is an} alkali metal, an ammonium group or an organic amine group. )
(In chemical formula 3,
R ² and R ³ each represent a hydrocarbon group having 4 to 12 carbon atoms,
M ³ : an alkali metal, an ammonium group or an organic amine group. ) The non-ionic surfactant is an ether ester compound obtained by condensing a monocarboxylic acid and a dicarboxylic acid with at least one compound selected from an alkylene oxide adduct of castor oil and an alkylene oxide adduct of hydrogenated castor oil,
The processing agent for synthetic fiber according to claim 1 or 2, wherein the ether ester compound contains one having a mass average molecular weight of 3,000 to 30,000.   The ether ester compound is 20-40 mol% of at least one compound selected from an alkylene oxide adduct of castor oil and an alkylene oxide adduct of hydrogenated castor oil, 35-65 mol% of a monocarboxylic acid, and 5 dicarboxylic acids The processing agent for synthetic fibers according to claim 3, which is composed of -35 mol% (total 100 mol%). The processing agent for synthetic fibers according to any one of claims 1 to 4, wherein the smoothing agent contains a sulfur-containing ester compound represented by the following chemical formula 4.
(In chemical formula 4,
R ⁴ and R ⁵ each represent a hydrocarbon group having 12 to 24 carbon atoms,
m, n: each an integer of 1 to 4; )   The processing agent for synthetic fiber according to any one of claims 1 to 5, wherein the ionic surfactant further contains an amine salt of an organic phosphoric acid ester.   The amine constituting the amine salt of the organic phosphoric acid ester is added in a ratio of 1 to 50 moles of alkylene oxide to 1 mole of diethanolamine, triethanolamine, dibutylethanolamine and monoalkylamine having 4 to 30 carbon atoms. The treating agent for synthetic fiber according to claim 6, which is at least one selected from the above compounds.   Assuming that the total content of the leveling agent, the nonionic surfactant, and the ionic surfactant is 100% by mass, 30 to 70% by mass of the leveling agent and 20 to 60% by mass of the nonionic surfactant %, And the said ionic surfactant are contained in the ratio of 0.1-20 mass%, The processing agent for synthetic fibers as described in any one of Claims 1-7.   A synthetic fiber to which the synthetic fiber treatment agent according to any one of claims 1 to 8 is attached.