JP5680379B2 - Scouring agent composition for polyester fiber knit and scouring method using the same - Google Patents

Description

  The present invention relates to a scouring agent composition for polyester fiber knit and a scouring method using the same, and more particularly to a scouring method performed simultaneously with dyeing and a scouring method performed simultaneously with dyeing and flame-retardant processing.

  The polyester fiber products mainly include woven fabric and knit (knitted fabric). The raw material of polyester fiber fabrics, that is, unprocessed cloth before scouring bleaching, is contaminated with contaminants such as oils, glues, and other machine lubricating oils applied in the process from raw yarn production to weaving. . As the oil agent, mineral oil such as liquid paraffin is mainly used in order to prevent deterioration of physical properties, fluff, yarn breakage, and the like due to friction after spinning. As the sizing agent, an acrylate sizing agent or a polyvinyl alcohol sizing agent is used in order to increase the convergence of the yarn and increase the weaving efficiency.

  When the impurities contained in the polyester fiber fabric as described above are not completely removed in the scouring process, the dyeing is adversely affected or the finish is uneven. In addition, in the case of polyester fiber fabrics, scouring under high alkaline conditions is usually essential in order to remove the paste, so a scouring agent with excellent scouring properties under high alkaline conditions is proposed. (See Patent Documents 1 and 2). Such a scouring agent usually consists of a nonionic surfactant having a polyoxyethylene group and / or a polyoxypropylene group in the molecule, or a composition containing such a nonionic surfactant.

  In addition, when dyeing polyester fiber products or flame-retardant processing at the same time as dyeing, in addition to polyester oligomers contained in polyester fiber products, various oils, glues, waxes, etc. attached to polyester fiber products In order to solve undesired dyeing unevenness caused by scum and residue due to a function imparting agent such as a flame retardant, (A) a dibasic acid having a sulfonate group is contained in an amount of 15 to 65 mol%. Polyester copolymer having a molecular weight of 3000 to 30000 and a polyoxyethylene chain of 10 to 40% by weight obtained by polycondensation of a dibasic acid component and a dihydric alcohol component containing polyethylene glycol having a molecular weight of 900 to 3500 And (B) a styrenated phenol alkylene oxide adduct and a higher alcohol alkylene oxide adduct. The use of at least one comprising a compound dyeability improving agent selected from the group has been proposed (see Patent Document 3).

  Residue is due to the functionality imparting agent not exhausted by the textile remaining on the fiber surface when a flame retardant or other functionality imparting agent is imparted to the textile in the same bath as the dyeing bath. This refers to the dirt that occurs.

  However, since there is no weaving process in the production machine of polyester fiber knit, no paste remains as a contaminant, but mineral oil such as liquid paraffin is used in the knitting process. More foreign substances such as oils and waxes are attached than the raw machine. When these oil components such as oil and wax remain in the polyester fiber knit as in the case of the polyester fiber woven fabric, they may adversely affect the dyeing or lead to uneven finishing.

  The scouring process of the polyester fiber product including the polyester fiber knit is usually performed by immersing the polyester fiber product in a bath of 60 to 100 ° C. containing the scouring agent as described above. In this way, the polyester fiber product is immersed in a bath and requires many processing steps such as heating, washing, cooling, rinsing, dehydration, and drying, as well as a large amount of water, energy, and a lot of processing time. Not economical.

  Therefore, as described above, since there is no weaving process for the polyester fiber knit production machine, no glue is attached. Therefore, in some cases, drying at 170 ° C. or higher is performed as a pre-process for dyeing. A simple process is performed in which heat treatment is performed to volatilize oil such as oil and wax, and then dyeing is performed.

  However, in such a dry heat treatment, oil components such as oils and waxes do not volatilize sufficiently and remain in the polyester fiber knit, so that the polyester fiber knit subjected to the dry heat treatment is dyed in the same bath as the dye bath, for example. At the same time, when the flame retardant treatment with the flame retardant is performed, there is a problem that the oil component such as the oil agent or wax and agglomerates derived from the flame retardant are generated, and as a result, the above-mentioned residue of dirt is generated on the polyester fiber knit.

  Therefore, in order to solve such problems, the scouring of the polyester fiber knit is also solved by scouring using the scouring agent described above or by adding the dyeability improver to the dyeing bath and dyeing. However, as described above, either method is not sufficient to remove oil such as oil agent or wax, or the effect of dispersing the function-imparting agent such as flame retardant is insufficient. However, the present situation is that the adverse effects on the dyeing, the unevenness of the finish, and the dirt on the residue have not been solved.

  On the other hand, as a post-treatment method for polyester-based flame retardant processed fiber products, after the polyester-based fiber products are flame-retardant processed, the styrenated phenol alkylene oxide adduct is not fixed to the polyester-based fiber products as a cleaning agent. A method for removing the flame retardant is disclosed (see Patent Document 4).

  However, such a method can certainly remove the flame retardant that is not fixed to the polyester fiber product, but is a post-treatment after flame retardant processing. In the case of treatment, since oil components such as oils and waxes cannot be removed in advance, it is impossible to eliminate adverse effects on dyeing, uneven finishing, and dirt residue.

  In addition, styrenated phenol alkylene oxide adducts, such as styrenated phenol ethylene oxide adducts, have poor solubility and dispersibility in water, depending on the number of moles of ethylene oxide added. It is difficult to distribute (release) uniformly on the surface, and even if it is simply diluted with water, gelation occurs at a high concentration, which causes a problem in handling.

  In general, when a polyester fiber product is dyed, or when a polyester fiber product is dyed in the same bath as the dyeing bath and flame retardant, the polyester fiber product is usually subjected to a scouring treatment, and then usually a disperse dye or This is done by immersing the polyester fiber product in a dyeing bath in which a flame retardant is dispersed in water under high temperature and high pressure. However, the disperse dye and flame retardant are usually poorly soluble in water. It is easy to aggregate.

  Therefore, when polyester fiber products, including polyester fiber knits, have residual oils such as oils and waxes, the polyester fiber products are dyed or dyed in the same bath as the flame retardant. In this case, the disperse dye and flame retardant aggregate in the bath is promoted, and the aggregate reattaches to the polyester fiber product, so that the dye partially adheres to the polyester fiber product at a high concentration. Problems such as spots, finish unevenness, and residue due to flame retardant aggregates occur.

Japanese Patent Laid-Open No. 11-131091 JP 2008-45266 A JP 2009-120969 A JP 2008-31614 A

  As a result of intensive research to solve the above-described problems in the scouring of the polyester fiber knit and the dyeing flame retardant processing in the same bath as the dyeing bath, the present inventors, in particular, along with the styrenated phenol alkylene oxide adduct, A composition containing at least one selected from polyethylene glycol and certain oligoethylene derivatives is excellent in dispersibility of oils such as oils and waxes attached to the polyester fiber knit as a scouring agent composition, that is, excellent in removability. In addition, it has excellent dispersibility to disperse dyes and flame retardants, so in the presence of such a scouring agent composition, dye it in the same bath as the dye bath, or simultaneously add the flame retardant to the dye. Even when flame retardant processing is used, the generation of aggregates of disperse dyes and flame retardants in the bath is suppressed, and this causes adverse effects on dyeing such as uneven dyeing. Thus, the problem of residue caused by disperse dyes and aggregates of flame retardants can be solved. Thus, by using the above-described scouring agent composition, the above-mentioned problems in the flame retardant treatment simultaneously with the dyeing treatment and dyeing can be achieved. The present invention has been completed by finding out that it can be solved at once.

  Thus, the present invention can be effectively removed from the polyester fiber knit by effectively emulsifying oil components such as oil and wax remaining in the polyester fiber knit by being used for the treatment in the bath. An object of the present invention is to provide a scouring agent composition having excellent scouring performance.

  Furthermore, the present invention provides a polyester fiber as described above by dyeing a polyester fiber knit in the same bath as the dyeing bath containing such a scouring agent composition, or by performing a flame retardant treatment at the same time as the dyeing treatment. Effectively emulsify oil components such as oil and wax remaining in the knit, and remove them well from the polyester fiber knit to eliminate adverse effects on the dyeing and finish unevenness due to the oil, and further disperse the flame retardant In order to improve the properties and reduce the above-mentioned residue due to the flame retardant, the polyester fiber knit is dyed or dyed in the same bath as the dyeing bath without the above-mentioned problems, and at the same time flame retardant treated. An object of the present invention is to provide a scouring agent composition for polyester fiber knit that can be used.

  That is, the scouring agent composition according to the present invention is excellent in the dispersibility of oil components such as oils and waxes attached to the polyester fiber knit, that is, the removability, and is therefore useful for scouring the polyester fiber knit itself. In addition, it is useful as a dyeing bath scouring agent composition for dyeing polyester fiber knits in the same bath as the dyeing bath, and it is difficult to dye polyester fiber knits in the same bath as the dyeing bath. It is useful as a dyeing flame retardant scouring composition for flame processing.

  Furthermore, the present invention provides a method for scouring a polyester fiber knit using the scouring agent composition as described above, a method for dyeing together with scouring in the same bath, and a method for scouring, dyeing and flame-retarding in the same bath. The purpose is to do.

According to the present invention,
(A) Along with the styrenated phenol alkylene oxide adduct,
(B) (i) polyethylene glycol having a number average molecular weight in the range of 200 to 1500;
(Ii) General formula (I)

(Wherein, R ¹ and R ² may be the same or different, represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, n is an integer of 1-4.)
A scouring agent composition for polyester fiber knits, comprising at least one selected from the group consisting of oligoethylene derivatives represented by the formula:

  Moreover, according to this invention, the method of scouring a polyester fiber knit using the scouring agent composition mentioned above is provided. In particular, according to the present invention, a method of scouring a polyester fiber knit in the same bath in the presence of the above-described scouring agent composition and simultaneously dyeing, and a polyester system in the same bath in the presence of the scouring agent composition described above. A method is provided for simultaneously performing a dyeing process and a flame retardant process on a fiber knit.

According to the present invention, the (A) alkylene oxide addition mole number of styrenated phenol alkylene oxide adducts have preferably be in the range of 5 to 18. Also,
(A) the styrenated phenol alkylene oxide adduct ,
At least one selected from the above (B) (i) polyethylene glycol and (ii) the above oligoethylene derivative (hereinafter, this (B) component is referred to as “solvent”).
Each percentage in the total amount is in the range above styrenated phenol alkylene oxide adducts of 30 to 90 wt%, the solvent is preferably in the range of 70 to 10 wt%. Further, according to the present invention, it is preferable that the styrenated phenol alkylene oxide adducts are styrenated phenol ethylene oxide adducts. The scouring agent composition according to the present invention preferably contains water in a proportion of 50% by weight or less.

  In the present invention, the oligoethylene derivative is particularly at least selected from ethylene glycol, diethylene glycol, triethylene glycol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether and ethylene glycol dimethyl ether. One type is preferable.

  Furthermore, according to this invention, the scouring method of the polyester fiber knit characterized by immersing a polyester fiber knit in the bath containing the scouring agent composition mentioned above is provided.

  In particular, according to the present invention, in the scouring method, the temperature of the bath containing the scouring agent composition is set to 60 to 100 ° C., the method of scouring the polyester fiber knit, and the bath containing the dye together with the scouring agent composition. A method of dyeing polyester fiber knit in the same bath at a temperature of 120 to 140 ° C., a temperature of a bath containing a dye and a flame retardant together with the scouring agent composition is set to 120 to 140 ° C., and the polyester fiber knit in the same bath A method of flame retardant processing at the same time as dyeing is provided.

  The polyester fiber knit scouring agent composition according to the present invention is a styrenated phenol alkylene oxide adduct as a first component which is liquid by itself at room temperature as a composition containing water. Has excellent oil removability and dispersibility of disperse dyes and flame retardants, and the second component, polyethylene glycol or oligoethylene derivatives, is compatible with both styrenated phenol alkylene oxide adducts and water. By using this together with a styrenated phenol alkylene oxide adduct, so to speak, by using polyethylene glycol or oligoethylene derivative as a co-solvent with water, scouring, dyeing and dyeing of polyester fiber knit Still in water, a solvent for flame retardant processing Can be enhanced significantly solubility or dispersibility of the phenol alkylene oxide adducts.

  As a result, when the scouring agent composition according to the present invention is applied to a polyester fiber knit, the styrenated phenol alkylene oxide adduct is uniformly distributed on the surface of the fibers constituting the polyester fiber knit, and thus the surface of the fiber. The remaining oil such as oil agent and wax can be effectively removed, and thus the oil adhering to the polyester fiber knit can be effectively removed.

  Thus, by using the scouring agent composition according to the present invention, it is possible to eliminate the adverse effects on the dyeing and the production of finish unevenness due to oils such as oil and wax remaining in the polyester fiber knit, and the scouring agent according to the present invention. Since the composition has excellent dispersibility with respect to the disperse dye and the flame retardant, the polyester fiber knit is dyed into the polyester fiber knit in the presence of the flame retardant and simultaneously used with the flame retardant. Also, the formation of flame retardant aggregates is suppressed, and thus the problem of residue due to disperse dyes and flame retardant aggregates can be solved.

The scouring agent composition for polyester fiber knit according to the present invention is:
(A) Along with the styrenated phenol alkylene oxide adduct,
(B) (i) polyethylene glycol having a number average molecular weight in the range of 200 to 1500;
(Ii) General formula (I)

(In the formula, R ¹ and R ² may be the same or different, represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, n is an integer of 1-4.)
It comprises at least one selected from oligoethylene derivatives represented by

  That is, the scouring agent composition for polyester fiber knit according to the present invention has a styrenated phenol alkylene oxide adduct as a surfactant as a first component, and the polyethylene glycol and oligoethylene as a second component. It is a liquid composition at room temperature (20 ° C., hereinafter the same) having at least one selected from derivatives.

  According to the present invention, the scouring agent composition preferably further comprises water. As described above, at least one selected from the polyethylene glycol and the oligoethylene derivative forms a cosolvent with the styrenated phenol alkylene oxide adduct together with water, and in this cosolvent, The dispersibility of the alkylene oxide adduct can be significantly increased. Therefore, hereinafter, at least one selected from the polyethylene glycol and the oligoethylene derivative may be simply referred to as “solvent”.

  In the present invention, the polyester fiber knit refers to a knit (knitted product) made of yarn containing at least polyester fiber.

  Examples of the knit include a weft knitted fabric, a warp knitted fabric, a circular knitted fabric, a tricot fabric, a raschel fabric, a mesh fabric, and a jersey, but are not limited to these examples.

  In the present invention, the polyester fiber is, for example, polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene terephthalate / isophthalate, polyethylene terephthalate / 5-sulfoisophthalate, polyethylene terephthalate / polyoxy. Benzoyl, polybutylene terephthalate / isophthalate, poly (D-lactic acid), poly (L-lactic acid), copolymer of D-lactic acid and L-lactic acid, copolymer of D-lactic acid and aliphatic hydroxycarboxylic acid, Copolymer of L-lactic acid and aliphatic hydroxycarboxylic acid, copolymer of D-lactic acid, L-lactic acid and aliphatic hydroxycarboxylic acid, polycaprolactone such as poly-ε-caprolactone (PCL), Polyaliphatic hydroxycarboxylic acids such as goic acid, polyhydroxycarboxylic butyric acid, polyhydroxyvaleric acid, β-hydroxybutyric acid (3HB) -3-hydroxyvaleric acid (3HV) random copolymer, polyethylene succinate (PES), poly Polyesters of glycol and aliphatic dicarboxylic acid such as butylene succinate (PBS), polybutylene adipate, polybutylene succinate-adipate copolymer, etc. can be mentioned, but are not limited to those exemplified. Furthermore, a functional compound such as a flame retardant may be copolymerized with the polyester during the production of the polyester, or a functional compound such as a flame retardant may be blended during the polymerization or yarn production.

  As described above, the first component in the scouring agent composition for polyester fiber knit of the present invention is a styrenated phenol alkylene oxide adduct. The styrenated phenol alkylene oxide adduct preferably comprises an adduct of ethylene oxide and / or propylene oxide of at least one styrenated phenol selected from monostyrenated phenol, distyrenated phenol and tristyrenated phenol, Particularly preferred is an ethylene oxide adduct, ie, a styrenated phenol ethylene oxide adduct.

  In addition to styrenated phenol alkylene oxide adducts, benzylated phenol alkylene oxide adducts and ethylene oxide / propylene oxide adducts of specific alcohols have been known to have excellent oil removal and flame retardant dispersibility. However, these surfactants are used as surfactants, and in combination with the above-mentioned solvent, as a scouring agent composition, such a scouring agent composition may solidify in winter or components may be separated over time. And it is inferior to handling property.

  In the scouring agent composition for polyester fiber knit of the present invention, the number of moles of ethylene oxide or propylene oxide added to the styrenated phenol alkylene oxide adduct is 5 to 18, preferably 8 to 15. When the number of added moles is less than 5, not only the removal of oil such as oil and wax remaining in the polyester fiber knit is not sufficient, but also the dispersibility of disperse dyes and flame retardants is not sufficient. On the other hand, when the added mole number is larger than 18, the dispersibility of the disperse dye or the flame retardant is enhanced, but the removability of the oil such as the oil agent or the wax is not sufficient.

  As described above, the second component in the polyester fiber knit scouring agent composition of the present invention is composed of polyethylene glycol having a number average molecular weight of 200 to 1500 and an oligoethylene derivative represented by the general formula (I). At least one selected.

  In the present invention, polyethylene glycol may contain a low polymer such as tetraethylene glycol or triethylene glycol, but is a mixture containing a high polymer of pentaethylene glycol or higher, and has a number average molecular weight of 200 or higher. Say things.

  According to the present invention, as described above, at least one selected from the polyethylene glycol and oligoethylene derivatives is a copolymer that can significantly increase the solubility of the styrenated phenol alkylene oxide adduct in water when used with water. It is a solvent and therefore needs to be water-soluble at room temperature.

  Furthermore, in the present invention, the polyethylene glycol preferably has a number average molecular weight of 1500 or less from the viewpoint of lowering the viscosity when the concentration of the scouring agent composition is increased. Polyethylene glycol having a number average molecular weight exceeding 1500 may be inferior in oil removability such as oil and wax, and dispersibility of disperse dyes and flame retardants.

  The polyethylene glycol has a number average molecular weight of 200, 300, 400 or 600, a colorless liquid that can be arbitrarily mixed with water, a number average molecular weight of 1000 or 1450, and a solubility in water of about 200 g. The wax-like product can be exemplified, and any of these polyethylene glycols can be obtained commercially.

  In the present invention, as long as the polyethylene glycol is water-soluble at room temperature, the terminal hydroxyl group may be monoetherified or dietherified with a lower alkyl group, for example, a methyl group, an ethyl group, a propyl group, or a butyl group. These can also be used similarly to polyethylene glycol. Accordingly, in the present invention, polyethylene glycol includes water-soluble ones in which the terminal hydroxyl group is monoetherified or dietherified with a lower alkyl group. Examples of such monoetherified or dietherified polyethylene glycol include polyethylene glycol monomethyl ether having a number average molecular weight of 220 and polyethylene glycol dimethyl ether having a number average molecular weight of 240.

  On the other hand, as the oligoethylene derivative, for example, ethylene glycol, diethylene glycol, triethylene glycol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, Diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol ethyl methyl ether, diethylene glycol butyl methyl ether, triethylene glycol monomethyl ether, triethylene glycol dimethyl ether, triethylene glycol butyl methyl Ether, may be mentioned tetraethylene glycol dimethyl ether.

  In the present invention, the solvent, that is, at least one selected from the polyethylene glycol and the oligoethylene derivative is used to improve the performance of removing oil such as oil and wax remaining in the polyester fiber knit, Contributes to lowering the viscosity when the concentration is increased.

  In particular, according to the present invention, the above-mentioned solvent is debris caused by aggregates of flame retardant when dyed flame retardant treatment in the same bath in the presence of a scouring agent composition combined with a styrenated phenol alkylene oxide adduct. From the viewpoint of prevention, at least one selected from polyethylene glycol, ethylene glycol, diethylene glycol, ethylene glycol monomethyl ether and ethylene glycol dimethyl ether having a number average molecular weight of 200 to 1000 is preferable, and among them, polyethylene glycol and ethylene having a number average molecular weight of 200 At least one selected from glycols is preferred.

  In the scouring agent composition for polyester fiber knit according to the present invention, the ratio of the styrenated phenol alkylene oxide adduct and the solvent in the total amount of the styrenated phenol alkylene oxide adduct and the solvent is the styrenated phenol alkylene oxide addition. The product is 30 to 90% by weight, the solvent is preferably 70 to 10% by weight, in particular, the styrenated phenol alkylene oxide adduct is 50 to 85% by weight, and the solvent is 50 to 15% by weight. It is preferable.

  In the scouring agent composition for polyester fiber knit, when the styrenated phenol alkylene oxide adduct is more than 90% by weight in the total amount of styrenated phenol alkylene oxide adduct and solvent, the scouring agent composition for polyester fiber knit When the product is added to the treatment bath, the dispersibility may be deteriorated, or the scouring agent composition may be gelled, and the handling property may be deteriorated. However, in the total amount of the styrenated phenol alkylene oxide adduct and the solvent, when the styrenated phenol alkylene oxide adduct is less than 30% by weight, the removability of the oil such as the remaining oil agent and wax, that is, the emulsifying property is reduced. When the flame retardant treatment is performed at the same time as the dyeing, the dispersibility of the disperse dye and the flame retardant is also deteriorated. If an excessive amount of the scouring agent composition is added in order to avoid these problems, the economic efficiency is deteriorated.

  As described above, the scouring agent composition for polyester fiber knit according to the present invention contains a styrenated phenol alkylene oxide adduct and the solvent, and preferably contains water. That is, the scouring agent composition for polyester fiber knit according to the present invention preferably comprises a total amount of styrenated phenol alkylene oxide adduct and solvent of 50% by weight or more and water of 50% by weight or less.

  When scouring a polyester fiber knit, the scouring agent composition according to the present invention usually has a total amount of a styrenated phenol alkylene oxide adduct and a solvent, that is, a concentration as an active ingredient of 0.1 to 2.0 g / L. In addition to the treatment bath, it is used. When the concentration of the active ingredient in the treatment bath is less than 0.1 g / L, the scouring effect of the polyester fiber knit is not sufficient, and in addition to the adverse effect on the dyeing due to the remaining oil or oil such as wax, uneven finishing And there is a risk of residue from the flame retardant. On the other hand, when the active ingredient is used at a concentration exceeding 2.0 g / L, scouring unevenness or dyeing unevenness may occur due to foaming of the treatment bath.

  The scouring agent composition for polyester fiber knit according to the present invention comprises a styrenated phenol alkylene oxide adduct sulfate ester salt, a styrenated phenol alkylene oxide adduct sulfosuccinol in addition to the styrenated phenol alkylene oxide adduct as required. In addition to anionic surfactants such as acid ester salts, polycarboxylic acids such as ethylenediaminetetraacetic acid (EDTA), hydroxyethylidenephosphonic acid (HEDP), aminotrimethylphosphonic acid (ATMP), nitrilotriacetic acid (NTA), and phosphonic acid Alternatively, a chelating agent composed of a salt thereof, an alkali builder such as sodium carbonate or sodium tripolyphosphate, or a defoaming agent such as a silicone oil or mineral oil may be included.

  In the scouring treatment of the polyester fiber knit using the scouring agent composition of the present invention, the bath liquid is made into a polyester fiber knit by a batch method or a continuous method in a treatment bath at a temperature of 60 to 100 ° C. containing the scouring agent composition. In addition to the above-described scouring agent composition, the polyester fiber knit can be impregnated in a polyester fiber knit by a batch method or a continuous method in a treatment bath at 120 to 140 ° C. containing a dye together with the scouring agent composition. Can be performed at the same time as the knit dyeing process, and impregnated polyester fiber knit with the bath liquid by batch or continuous method in 120 ~ 140 ° C treatment bath containing dye and flame retardant together with the above scouring agent composition The polyester fiber knit can be dyed and flame retardant at the same time.

  If an example of the composition of the dyeing bath for simultaneously performing dyeing and flame retardant processing in the same bath as the dyeing bath is given, the disperse dye depends on the required color density, but usually 0.1 to 15.0% owf, Formulation containing 0.3 to 1.0 g / L of an acid such as acetic acid for adjusting the pH of the bath to about 3 to 6, a leveling agent for adjusting the dyeing speed, usually a surfactant 0.3 to 1.0 g / L, chelating agent such as polycarboxylic acid for softening the bath 0.2 to 0.5 g / L, polyester softener 0.2 to 0.5 g / L, for example, a light fastness improving agent 0.5 to 2.0% owf composed of a benzotriazole compound, a flame retardant processing agent 1.0 to 9.0% owf, and a scouring agent 0.5 to 3 0.0 g / L, 9 to 15 times the weight of water with respect to the polyester fiber knit. The flame retardant processing agent is a dispersion containing a flame retardant. However, in the present invention, the composition of the dyeing bath containing the scouring agent composition and the dyeing bath for simultaneously performing dyeing and flame retardant processing in the same bath as dyeing are not limited to the above examples.

  In this manner, the polyester fiber knit is dyed in the same bath as the dyeing bath containing the scouring agent composition according to the present invention, or after dyeing and flame retardant treatment in the same bath, the polyester fiber knit is taken out of the bath, By reducing or soaping, washing with hot water, washing with water, dehydrating, and drying, adverse effects on dyeing and finishing unevenness due to oil or wax remaining in the polyester fiber knit, and further, the above-mentioned residue caused by the flame retardant Without staining, the polyester fiber knit can be dyed or dyed and flame retardant at the same time.

  A disperse dye capable of effectively scouring and dyeing a polyester fiber knit in the same bath using the scouring agent composition according to the present invention, and a polyester fiber using the scouring agent composition according to the present invention. The disperse dye and flame retardant which can effectively perform scouring, dyeing and flame retardant processing in the same bath are not particularly limited.

  Disperse dyes that can be suitably used in the present invention include anthraquinone series, benzeneazo series (monoazo and disazo), heterocyclic azo series (thiazole azo, benzothiazole azo, pyridone azo, pyrazone azo, thiophenazo, etc.), condensation systems (quinophthalone, Styryl, coumarone, etc.).

  Accordingly, as specific examples of disperse dyes, the names by color index are, for example, Disperse Yellow 3, Disperse Yellow 42, Disperse Yellow 51, Disperse Yellow 54, Disperse Yellow 64, Disperse Yellow 71, Disperse Yellow. Perth Yellow 79, Disperse Yellow 82, Disperse Yellow 114, Disperse Yellow 126, Disperse Yellow 163, Disperse Yellow 211, Disperse Yellow 226, Solvent Yellow 163, Disperse Orange 29, Disperse Orange 30, Disperse Orange 31, disperse orange 55, disperse orange 61, disperse orange 66, disperse orange 73, disperse orange 155, dispa Thread 54, Disper thread 58, Disper thread 60, Disper thread 73, Disper thread 86, Disper thread 127, Disper thread 141, Disper thread 146, Disper thread 153, Disper thread 167.1, Disper thread 191, Disper thread 277, Disper Thread 356, Disperse Violet 12, Disperse Violet 28, Disperse Violet 33, Disperse Violet 57, Disperse Blue 3, Disperse Blue, Disperse Blue 56, Disperse Blue 60, Disperse Blue 73, Disperse Blue 73.1, Disperse Blue 77, Disperse Blue 79, Disperse Blue 81, Dispa Disperse Blue 87, Disperse Blue 125, Disperse Blue 149, Disperse Blue 153, Disperse Blue 165, Disperse Blue 198, Disperse Blue 291, Disperse Blue 291.1, Disperse Blue 268, Disperse Blue 284, Disperse Blue 367, Disperse Green 9, etc. can be mentioned. However, the disperse dyes that can be used in the present invention are not limited to the above examples.

  Examples of the flame retardant that can be suitably used in the present invention include aromatic monophosphates such as tricresyl phosphate and naphthyl diphenyl phosphate, resorcinol bis (diphenyl phosphate), and resorcinol bis (di-2,6-xy Aromatic diphosphates such as (renyl phosphate), aromatic amino phosphates such as anilinodiphenyl phosphate, aromatic diaminophosphates such as dianilinophenyl phosphate, aromatic phosphine oxides such as triphenylphosphine oxide, 10- Benzyl-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10-cresyl-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Phosphaphenanthrene derivatives, dioxaphosphorinane oxide derivatives such as 5,5-dimethyl-2- (2′-phenylphenoxy) -1,3,2-dioxaphosphorinane-2-oxide, hexaphenoxytri And phosphazene derivatives such as phosphazene and triphenoxytrimethoxytriphosphazene. However, the flame retardant that can be used in the present invention is not limited to the above examples.

  The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples.

(Scouring performance test of a scouring agent composition using a liquid dyeing machine)
Example 1
50 parts by weight of a distyrenated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water are mixed and stirred to form an aqueous solution. , Referred to as a scouring agent composition.) A was prepared.

Comparative Example 1
50 parts by weight of disodium dodecyl diphenyl ether disulfonate, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition B according to a comparative example.

  In an actual machine test using a liquid dyeing machine, when dyeing a sample polyester fiber knit with a disperse dye and simultaneously flame-retarding using a flame retardant, the scouring agent composition A according to Example 1 above is used as a scouring agent composition. The scouring agent composition B according to Comparative Example 1 was used.

  The residual fat rate of the sample polyester knit used was 1.3%. This residual fat ratio is obtained by measuring the dry weight of the sample polyester knit, extracting the sample polyester knit with diethyl ether with a Soxhlet extractor for 5 hours, and drying the resulting extract to obtain an oil amount. The residual fat ratio was determined by the following formula.

  Residual fat percentage (%) = {oil content (g) / dry weight of sample polyester knit (g)} × 100

Next, FT-IR analysis of the oil component confirmed that the oil component was liquid paraffin. The sample polyester knit before the treatment had a basis weight of 500 g / m ² , a width of 2 m, and a fabric length of 365 m.

  About 3650L of water is added to the liquid dyeing machine so that the weight ratio with respect to the sample polyester fiber knit is 10, and further, the sample polyester fiber knit raw machine is put into an endless shape by joining both ends with an overlock sewing machine. The circulation rate of the sample polyester fiber knit in the dyeing machine was 250 m / min.

  6 kg of the scouring agent composition obtained in Example 1 and Comparative Example 1 (the amount of active ingredient is about 1 g with respect to 1 L of bath liquid), flame retardant processing agent Bigor FV-6010 (Daikyo Chemical Co., Ltd. anilinodiphenyl) 22 kg flame retardant containing 34% by weight of a mixture of phosphate and dianilinophenyl phosphate, 10.9 kg disperse dye (CI Disperse Orange 155), 3.6 kg disperse dye (CI Disperse Red 86) Then, 3.6 kg of disperse dye (CI Disperse Blue 77) was added from a chemical addition tank to a liquid dyeing machine to prepare a treatment liquid.

  This treatment liquid requires 70 minutes from the treatment start temperature of 40 ° C. to a treatment temperature of 135 ° C., held at this temperature for 30 minutes, flame retardant treatment is performed simultaneously with dyeing, and then over 45 minutes. The temperature of the treatment liquid was lowered to 70 ° C., and then the treatment liquid was discharged from the liquid dyeing machine. Next, the sample polyester fiber knit that was washed with hot water, recommended, and flame-retardant processed simultaneously with dyeing was taken out, dried, and inspected. In the presence of the scouring agent composition A according to Example 1, flame-retardant processing simultaneously with dyeing. The sample polyester fiber knit did not show residue due to the flame retardant or uneven dyeing due to the flame retardant, but the sample polyester fiber knit that was flame-retardant processed simultaneously with the dyeing in the presence of the scouring agent composition B according to Comparative Example 1 67 spots of residue due to the flame retardant were found.

  The above-mentioned residue caused by the flame retardant promotes agglomeration of disperse dyes and flame retardants that are hardly soluble in water due to the liquid paraffin remaining in the sample polyester fiber knit production machine. It is caused by adhering.

(Performance test of scouring agent composition by model experiment)
Since the test using the above-described liquid dyeing machine requires a large amount of chemicals and water in addition to a large-area sample polyester fiber knit, a model experiment of scum stain is constructed below. In the experiment, a test of how the use of the scouring agent composition affects the dispersion stability of the flame retardant, that is, a scum stain test using the flame retardant, was performed in a state where the oil load was high.

  When the polyester fiber knit is flame-retardant processed, the oil such as liquid paraffin remaining therein is released from the polyester fiber knit as the temperature rises, and when it is not well emulsified by the scouring agent composition to which it is added, Coarse aggregates are produced by the association of poorly emulsified flame retardants with oils. When the aggregates re-adhere to the polyester fiber knit, it seems that adverse effects on dyeing, unevenness of finishing, and residue due to flame retardants are generated.

First, the following tests were performed as blanks for model experiments.
A treatment liquid containing 200 mL of test water and 0.4 g of liquid paraffin was prepared, and the treatment liquid was heated from 60 ° C. to 135 ° C. at a rate of 2 ° C./min without adding a sample polyester fiber knit to the treatment liquid. The mini-color (manufactured by Tecsum Giken Co., Ltd.) was idled at 30 ° C., then cooled to 60 ° C. at a rate of 3 ° C./min. The treatment liquid was filtered with suction using 131 black filter paper (retained particle diameter: 3 μm). After suction filtration, the filter paper was dried, and the weight of the filter paper after suction filtration was measured. Thereafter, the weight of the aggregate was determined from the weight of the filter paper before suction filtration and the weight of the filter paper after suction filtration according to the following formula, and found to be 0.394 g.

Aggregate weight (g) = weight of filter paper after suction filtration (g) −weight of filter paper before suction filtration (g)

  Therefore, in the following model experiment, when the weight of the aggregate is 0.3 g or less, the formation of the aggregate of the flame retardant is small, and the scum stain due to the flame retardant is effectively suppressed. When the agglomerate weight is 0.22 g or less, the scouring performance is very good. When the agglomerate weight is 0.1 g or less, the scouring performance is extremely good. can do.

  The model experiment was performed as follows. That is, 200 mL of water, 0.4 g of liquid paraffin, 1.2 g of the flame retardant processing agent bigol FV-6010, and each scouring agent composition obtained in Example 1, Comparative Example 1 and the following Examples and Comparative Examples. A treatment liquid containing 0.4 g as an active ingredient was prepared, and the treatment liquid was heated from 60 ° C. to 135 ° C. at a rate of 2 ° C./minute without introducing the sample polyester fiber knit, and at 135 ° C. for 30 minutes. Mini-color (manufactured by Teksam Giken Co., Ltd.) was idled, and then cooled to 60 ° C. at a rate of 3 ° C./min. The treatment liquid was filtered with suction using 131 black filter paper (retained particle diameter: 3 μm). After suction filtration, the filter paper was dried, and the weight of the filter paper after suction filtration was measured. Thereafter, the weight of the aggregate was determined from the weight of the filter paper before suction filtration and the weight of the filter paper after suction filtration according to the above formula.

  Moreover, the viscosities of the scouring agent compositions obtained in the examples and comparative examples were measured at a liquid temperature of 20 ° C. and 5 ° C. using a B-type viscometer, respectively. When the viscosity of the scouring agent composition increases, not only does the handling property during processing worsen, but the dispersibility when added during dyeing also deteriorates. There is a risk that it will not be evenly distributed. From these viewpoints, in the present invention, the viscosity of the scouring agent composition is particularly preferably 4000 mPa · s or less at 5 ° C.

The preparation of a scouring agent composition according to Examples and Comparative Examples is described below.
Reference example 1
50 parts by weight of distyrenated phenol ethylene oxide adduct, 10 parts by weight of ethylene glycol and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, and a scouring agent composition C as Reference Example 1 was prepared.

Reference example 2
A scouring agent composition D as Reference Example 2 was prepared by mixing and stirring 50 parts by weight of a distyrenated phenol ethylene oxide 15 mol adduct, 10 parts by weight of diethylene glycol and 40 parts by weight of water to prepare an aqueous solution.

Example 2
50 parts by weight of a distyrenated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 400, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution to prepare a scouring agent composition E according to the present invention.

Example 3
A scouring agent composition F according to the present invention was prepared by mixing and stirring 50 parts by weight of an adduct of 13 moles of distyrenated phenol ethylene oxide, 10 parts by weight of polyethylene glycol having a number average molecular weight of 600 and 40 parts by weight of water to prepare an aqueous solution.

Example 4
50 parts by weight of a distyrenated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 800, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition G according to the present invention.

Example 5
50 parts by weight of a distyrenated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 1000 and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition H according to the present invention.

Example 6
50 parts by weight of distyrenated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 1450 and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution to prepare a scouring agent composition I according to the present invention.

Reference example 3
50 parts by weight of distyrenated phenol ethylene oxide adduct, 10 parts by weight of ethylene glycol monomethyl ether and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, and a scouring agent composition J as Reference Example 3 was prepared.

Reference example 4
50 parts by weight of distyrenated phenol ethylene oxide adduct, 10 parts by weight of ethylene glycol monobutyl ether and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, and a scouring agent composition K as Reference Example 4 was prepared.

Reference Example 5
50 parts by weight of distyrenated phenol ethylene oxide adduct, 10 parts by weight of diethylene glycol monomethyl ether and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, and a scouring agent composition L as Reference Example 5 was prepared.

Reference Example 6
50 parts by weight of distyrenated phenol ethylene oxide adduct, 10 parts by weight of ethylene glycol dimethyl ether and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, and a scouring agent composition M as Reference Example 6 was prepared.

Example 7
A scouring agent composition N according to the present invention was prepared by mixing and stirring 20 parts by weight of an adduct of 13 moles of distyrenated phenol ethylene oxide, 40 parts by weight of polyethylene glycol having a number average molecular weight of 200 and 40 parts by weight of water to prepare an aqueous solution.

Example 8
40 parts by weight of a distyrenated phenol ethylene oxide adduct, 20 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition O according to the present invention.

Example 9
46 parts by weight of a distyrenated phenol ethylene oxide adduct, 24 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 30 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition P according to the present invention.

Example 10
A scouring agent composition Q according to the present invention was prepared by mixing and stirring 53 parts by weight of an adduct of 13 moles of distyrenated phenol ethylene oxide, 27 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 20 parts by weight of water to prepare an aqueous solution.

Example 11
60 parts by weight of a distyrenated phenol ethylene oxide adduct, 30 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 10 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition R according to the present invention.

Example 12
A scouring agent composition S according to the present invention was prepared by mixing and stirring 67 parts by weight of a 13-mole adduct of distyrenated phenol ethylene oxide and 33 parts by weight of polyethylene glycol having a number average molecular weight of 200 to prepare an aqueous solution.

Example 13
A scouring agent composition T according to the present invention was prepared by mixing and stirring 52 parts by weight of an adduct of 13 moles of distyrenated phenol ethylene oxide, 8 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water to prepare an aqueous solution.

Comparative Example 2
A tristyrenated phenol ethylene oxide 13 mol adduct sulfate ammonium salt 50 parts by weight, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200 and 40 parts by weight of water are mixed and stirred to obtain an aqueous solution. Prepared.

Comparative Example 3
50 parts by weight of stearyl alcohol ethylene oxide 7 mol adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, and a scouring agent composition V according to a comparative example was prepared.

Comparative Example 4
50 parts by weight of sorbitan monostearate ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution.

Comparative Example 5
A scouring agent composition X according to a comparative example was prepared by mixing and stirring 50 parts by weight of an adduct with 20 moles of distyrenated phenol ethylene oxide, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200 and 40 parts by weight of water to prepare an aqueous solution.

Comparative Example 6
50 parts by weight of a distyrenated phenol ethylene oxide 2 mol adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution.

Comparative Example 7
A scouring agent composition Z according to a comparative example is prepared by mixing and stirring 50 parts by weight of lauryl alcohol ethylene oxide 13 mol adduct phosphate sodium salt, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200 and 40 parts by weight of water to prepare an aqueous solution. did.

Comparative Example 8
50 parts by weight of dioctyl sodium sulfosuccinate, 10 parts by weight of polyethylene glycol having an average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition AA according to a comparative example.

Comparative Example 9
50 parts by weight of 2-butyloctanol ethylene oxide 5 mol propylene oxide 9 mol adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water are mixed and stirred to prepare an aqueous solution. Prepared.

Comparative Example 10
50 parts by weight of a tribenzylated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition AC according to a comparative example.

Comparative Example 11
50 parts by weight of a distyrenated phenol ethylene oxide adduct, 10 parts by weight of polyethylene glycol having a number average molecular weight of 2000, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition AD according to a comparative example.

Comparative Example 12
57 parts by weight of a distyrenated phenol ethylene oxide adduct, 3 parts by weight of polyethylene glycol having a number average molecular weight of 200, and 40 parts by weight of water were mixed and stirred to prepare an aqueous solution, thereby preparing a scouring agent composition AE according to a comparative example.

Comparative Example 13
A scouring agent composition AF according to a comparative example was prepared by mixing and stirring 15 parts by weight of an adduct of 13 moles of distyrenated phenol ethylene oxide, 45 parts by weight of polyethylene glycol having a number average molecular weight of 200 and 40 parts by weight of water to prepare an aqueous solution.

  Tables 1 and 2 show the composition, viscosity, state of the scouring agent composition obtained in the above examples, and the weight of the agglomerates in the residue test with the flame retardant. Table 3 shows the composition, viscosity, state, and weight of the agglomerates in the residue test with the flame retardant. About the scouring agent composition A by Example 1, and the scouring agent composition B by the comparative example 1, in addition to the actual machine test using the liquid flow test machine mentioned above, the result by a model experiment is also shown in Table 1 and Table 3, respectively. .

  As described above, according to the present invention, in the scouring agent compositions according to any of the examples and the comparative examples, if the weight of the aggregate is 0.3 g or less, residue of the residue due to the flame retardant, that is, the aggregate It can be said that its weight is small and its scouring performance is excellent. On the other hand, in any of the scouring agent compositions according to Examples and Comparative Examples, it can be said that the handling property is good if the viscosity is 4000 mPa · s or less. Furthermore, as for the state, if the scouring agent composition does not solidify at 5 ° C. and does not separate into two layers over time, and maintains a uniform solution state, the liquid stability over time will be improved. It can be said that it is excellent.

In any of the scouring agent compositions according to the present invention according to Examples 1 to 13 , since the weight of the aggregate is 0.3 g or less, there is little occurrence of residue due to the flame retardant, and at both normal temperature and low temperature, Excellent liquid stability over time, and excellent handling. In contrast, the scouring agent compositions according to Comparative Examples 1 to 4 and 7 to 10 use a surfactant other than the styrenated phenol alkylene oxide as the surfactant, and the scouring agents according to Comparative Examples 1 to 4, 7 and 8. In the composition, the weight of the agglomerates exceeds 0.3 g, and there is much occurrence of residue due to the flame retardant. Moreover, since the scouring agent composition according to Comparative Examples 3, 4 and 7 is solidified at 5 ° C., there is a problem in handling property in winter.

  In the scouring agent compositions according to Comparative Examples 9 and 10, the weight of the aggregates is 0.3 g or less and the occurrence of residue due to the flame retardant is small, but the scouring agent composition of Comparative Example 9 has poor liquid stability. , Separated into two layers. When the scouring agent composition is used in such a separated state, the active ingredient is not uniformly distributed to the treatment bath, and residue due to the flame retardant is likely to occur. Since the scouring agent composition according to Comparative Example 10 also solidifies at 5 ° C., there is a problem in winter handling properties.

  The scouring agent compositions according to Comparative Examples 5 and 6 are those using styrenated phenol ethylene oxide as a surfactant, while the scouring agent composition according to Comparative Example 5 is an ethylene oxide addition mole number in styrenated phenol ethylene oxide. Is 20 mol, the weight of the agglomerate exceeds 0.3 g, and there is much residue due to the flame retardant. On the other hand, the scouring agent composition according to Comparative Example 6 has an ethylene oxide addition mole number of 2 moles. Similarly, the weight of the agglomerates is 0.3 g or more, and there is a lot of residue due to the flame retardant. There is a problem of poor stability and separation into two layers over time.

  Since the number average molecular weight of the polyethylene glycol used in the scouring agent composition according to Comparative Example 11 is 2000, the weight of the agglomerates is 0.3 g or more, and there is much residue due to the flame retardant.

  In the scouring agent composition according to Comparative Example 12, the ratio of the styrenated phenol alkylene oxide adduct to the total amount of the styrenated phenol alkylene oxide adduct and the oligoethylene derivative was 95% by weight, and the weight of the aggregate was 0.3 g. Although it is the following, since it thickens at 5 degreeC and a viscosity exceeds 5000 mPa * s, there exists a problem in handling property in winter.

In contrast, in the scouring agent composition according to Comparative Example 13, the ratio of the styrenated phenol alkylene oxide adduct to the total amount of the styrenated phenol alkylene oxide adduct and polyethylene glycol was 25% by weight, and the weight of the aggregate was Is over 0.3 g, and there is a lot of residue due to the flame retardant.

Claims (7)

(A) Along with the styrenated phenol alkylene oxide adduct,
(B) polyethylene glycol having a number average molecular weight in the range of 200 to 1500;
(C) Water
A polyester fiber knit scouring agent composition comprising:
The alkylene oxide addition mole number in the styrenated phenol alkylene oxide adduct is in the range of 5 to 18,
In the total amount of the styrenated phenol alkylene oxide adduct and the polyethylene glycol, the styrenated phenol alkylene oxide adduct is in the range of 30 to 90% by weight, the polyethylene glycol is in the range of 70 to 10% by weight,
The proportion of water is not more than 50% by weight based on the scouring agent composition,
Scouring agent composition. The scouring composition according to claim 1 , wherein the styrenated phenol alkylene oxide adduct is a styrenated phenol ethylene oxide adduct. Scouring method of polyester fiber knit which characterized by immersing the polyester fiber knitted into a bath containing a polyester fiber knitted for scouring composition according to claim 1 or 2. 4. The scouring method according to claim 3 , wherein the temperature of the bath is 60 to 100 [deg.] C. and the polyester fiber knit is scoured. The scouring method according to claim 3 , wherein the temperature of the bath containing the dye is further set to 120 to 140 ° C, and the polyester fiber knit is dyed in the same bath. 4. The scouring method according to claim 3 , wherein the temperature of the bath containing the dye and the flame retardant is further set to 120 to 140 [deg.] C., and the polyester fiber knit is dyed in the same bath and simultaneously flame retardant processed. The method according to claim 6 , wherein the flame retardant is at least one selected from anilinodiphenyl phosphate and dianilinophenyl phosphate.