JP7129910B2 - Processing chemicals for textiles - Google Patents

Description

The present invention relates to textile processing chemicals.

Textile processing agents are used, for example, for the purpose of imparting various functions to fibers.

As a fiber processing agent, for example, there is a durable antistatic agent using a polyester-based resin (Patent Document 1). There are also, for example, fiber finishing agents containing linear polyester resins, solvents and nonionic activators (US Pat.

Japanese Patent Publication No. 38-11298 Japanese Patent Publication No. 44-3967

In textile processing agents, durability to washing is important, in which functions imparted to fibers can be maintained even after washing.

However, when it is attempted to increase the washing durability of the textile processing chemical, the dispersibility in water is lowered, making it difficult to obtain a liquid capable of processing the textile. On the other hand, if the dispersibility in water of the textile processing chemical is to be increased, the washing durability is lowered. As described above, it is difficult to achieve both washing durability and dispersibility in water in textile finishing chemicals.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fiber finishing agent that can achieve both washing durability and dispersibility in water.

In order to achieve the above object, the fiber processing chemical of the present invention contains the following components (A) to (C),
The following component (A) is characterized by being a copolymer obtained by polymerizing at least the following monomers (i) to (iii).

(A) branched polyester resin (B) water (C) nonionic surfactant having an aromatic ring

(i) at least one of a divalent aromatic carboxylic acid and a derivative thereof (ii) a diol (iii) a polyol having 3 or more hydroxyl groups

According to the textile processing chemical of the present invention, it is possible to achieve both washing durability and dispersibility in water.

Hereinafter, the present invention will be described more specifically with reference to examples. However, the invention is not limited by the following description.

In the monomer (i) of the fiber processing agent of the present invention, the divalent aromatic carboxylic acid may be, for example, at least one of terephthalic acid and isophthalic acid.

In the monomer (ii) of the fiber processing agent of the present invention, the diol may be, for example, at least one of ethylene glycol and polyethylene glycol.

The textile processing agent of the present invention may, for example, further contain an aromatic sulfonate.

The textile processing chemical of the present invention may be, for example, a durable antistatic agent for textiles.

[1. Processing chemicals for fibers]
As described above, the fiber processing agent of the present invention contains the following components (A) to (C),
The following component (A) is characterized by being a copolymer obtained by polymerizing at least the following monomers (i) to (iii).

(A) branched polyester resin (B) water (C) nonionic surfactant having an aromatic ring

(i) at least one of a divalent aromatic carboxylic acid and a derivative thereof (ii) a diol (iii) a polyol having 3 or more hydroxyl groups

The present inventors have found that at least one of a divalent aromatic carboxylic acid and a derivative thereof and a diol are copolymerized (co-condensed) with a polyol having three or more hydroxyl groups to obtain a branched polyester resin. It was found that washing durability can be obtained. Furthermore, it was found that the branched polyester resin has good dispersibility in water when a nonionic surfactant having an aromatic ring is used as a dispersant. In this way, the present inventor arrived at the textile processing agent of the present invention, which is capable of achieving both washing durability and dispersibility in water.

(1) Component (A): branched polyester resin In the fiber processing agent of the present invention, the branched polyester resin (component (A)) is, as described above, at least the following monomers (i) to (iii) It is a copolymer obtained by polymerizing a solid.

In the monomer (i), the divalent aromatic carboxylic acid (aromatic dicarboxylic acid) is not particularly limited, but includes, for example, aromatic dicarboxylic acids having 8 to 20 carbon atoms. Specific examples of divalent aromatic carboxylic acids include phthalic acid, isophthalic acid, terephthalic acid, 2,6-naphthalenedicarboxylic acid and the like. Examples of aromatic dicarboxylic acid derivatives include anhydrides, lower alcohol esters and acid halides of aromatic dicarboxylic acids. Examples of the lower alcohol esters include esters of lower alkyl alcohols, more specifically esters of linear or branched alkyl alcohols having 1 to 3 carbon atoms. Examples of lower alkyl esters of aromatic dicarboxylic acids include monomethyl ester, dimethyl ester, monoethyl ester and diethyl ester, and more specific examples include dimethyl isophthalate and dimethyl terephthalate. Examples of acid halides of aromatic dicarboxylic acids include monochloride, dichloride, monobromide and dibromide. Among the aromatic dicarboxylic acids and their derivatives, aromatic dicarboxylic acids and their methyl esters are preferable, and aromatic dicarboxylic acids having 8 to 12 carbon atoms and their methyl esters are more preferable from the viewpoint of washing durability. Specific examples include terephthalic acid, dimethyl terephthalate, isophthalic acid, dimethyl isophthalate, phthalic acid, and dimethyl phthalate. Moreover, in the present invention, the divalent aromatic carboxylic acid and its derivative may be used singly or in combination of two or more.

Examples of the diol in the monomer (ii) include aliphatic diols, alicyclic diols, aromatic diols, and alkylene oxide adducts thereof. In the present invention, the diol of the monomer (ii) may be a compound having two hydroxyl groups in the molecule, and the hydroxyl groups may be alcoholic hydroxyl groups or phenolic hydroxyl groups. Examples of the aliphatic diol include alkylene diols and polyalkylene diols derived from linear or branched alkylene groups. Specific examples of the aliphatic diols include ethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1, 6-hexanediol, neopentyl glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycol, polypropylene glycol, polyoxyethylene/polyoxypropylene block copolymer and the like. The molecular weight of the polyalkylene glycol (e.g., polyethylene glycol) is not particularly limited, but may be, for example, 300 or more, 600 or more, or 1,000 or more, and may be, for example, 10,000 or less, 8,000 or less, or 6,000 or less. good. Examples of the alicyclic diol include 1,4-cyclohexanedimethanol and hydrogenated bisphenol A. Examples of the aromatic diol include bisphenol A, bisphenol S and hydroquinone. Among these diols, a diol having an oxyethylene group such as polyethylene glycol is preferable from the viewpoint of affinity with water and stability of the fiber processing agent over time. Further, the diol may be used alone or in combination of multiple types.

In the monomer (iii), the polyol having 3 or more hydroxyl groups may be, for example, a triol, a tetraol, or a polyol having 5 or more hydroxyl groups. Examples of polyols having 3 or more hydroxyl groups include aliphatic polyols, alicyclic polyols, aromatic polyols, and alkylene oxide adducts thereof. Moreover, in the polyol having three or more hydroxyl groups, the hydroxyl group may be an alcoholic hydroxyl group or a phenolic hydroxyl group. Examples of the triol include glycerin, trimethylolpropane, and alkylene oxide adducts thereof. Examples of the tetraol include pentaerythritol and alkylene oxide adducts thereof. Examples of polyols having 5 or more hydroxyl groups include sorbitol and alkylene oxide adducts thereof. Moreover, the polyol having 3 or more hydroxyl groups may be used singly or in combination.

In addition, the branched polyester resin (component (A)) may or may not contain, as a copolymerization component, any component other than the monomers (i) to (iii). . Examples of the optional component include, but are not limited to, aliphatic dicarboxylic acids or lower alkyl esters thereof (malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid or other linear dicarboxylic acids or their methyl esters, methyl dicarboxylic acids having side chains such as malonic acid, methylsuccinic acid and methylglutaric acid; alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid;

In addition, the content of the branched polyester resin (component (A)) in the fiber processing agent of the present invention is not particularly limited. , 10% by mass or more, 20% by mass or more, or 30% by mass or more, and may be 70% by mass or less, 60% by mass or less, or 50% by mass or less. From the viewpoint of the stability of the dispersion, it is preferable that the content of the branched polyester resin (component (A)) is not too high. From the viewpoint of durable antistatic performance, it is preferable that the content of the branched polyester resin (component (A)) is not too small.

The weight average molecular weight of the branched polyester resin (component (A)) is not particularly limited, but is preferably 8,000 or more, 10,000 or more, 15,000 or more, or 20,000 or more, 50,000 or less, 40,000 or less, It is preferably 35,000 or less, or 30,000 or less.

(2) Method for producing branched polyester resin (component (A)) The method for producing the branched polyester resin (component (A)) is not particularly limited. It can be produced by copolymerization. Further, as described above, optional components other than the monomers (i) to (iii) may or may not be copolymerized. The amount of the monomer (i) used is not particularly limited. It is preferably 30% by mass or less, or 20% by mass or less. The amount of the monomer (ii) used is also not particularly limited. It is preferably 90% by mass or less, or 86% by mass or less. Although the amount of the monomer (iii) used is not particularly limited, for example, it is preferably 0.05% by mass or more, 0.1% by mass or more, or 0.12% by mass or more of the total copolymerization component. , 1% by mass or less, 0.5% by mass or less, or 0.3% by mass or less. The optional component may or may not be used, but when used, for example, it may be 0.1% by mass or more, or 1% by mass or more, 10% by mass or less, of the total copolymerization component, Alternatively, it may be 3% by mass or less.

The method of copolymerization is also not particularly limited, but for example, a known method or its conformity may be used. Specifically, for example, monomer (i) and a diol (e.g., ethylene glycol) are subjected to an esterification reaction or transesterification reaction in the presence of a suitable catalyst, and then monomers (ii) and (iii) is added to carry out the polycondensation reaction under reduced pressure. In the esterification reaction or transesterification reaction between the monomer (i) and the diol, for example, the diol may also serve as a solvent. The amount of the diol used is also not particularly limited, but for example, it is preferably 80% by mass or more, 100% by mass or more, or 120% by mass or more, 300% by mass or less, and 250% by mass of the monomer (i). or less, or preferably 200% by mass or less. The catalyst is also not particularly limited, but examples thereof include zinc oxide, zinc acetate, manganese acetate, antimony trioxide, and the like. The reaction time of the esterification reaction or transesterification reaction is not particularly limited, but is preferably 0.3 hours or more, 0.5 hours or more, or 0.7 hours or more, and 3 hours or less and 2 hours or less. , or preferably 1.5 hours or less. Although the reaction temperature is not particularly limited, it is preferably 140° C. or higher, 160° C. or higher, or 170° C. or higher, and preferably 220° C. or lower, 200° C. or lower, or 190° C. or lower. In the polycondensation reaction under reduced pressure, the reaction time is not particularly limited, but is preferably 1 hour or more, 1.5 hours or more, or 2 hours or more, 8 hours or less, 5 hours or less, Alternatively, it is preferably 4 hours or less. Although the reaction temperature is also not particularly limited, it is preferably 200° C. or higher, or 220° C. or higher, and preferably 280° C. or lower, or 260° C. or lower. In this production method, the monomer (i) may be, for example, an ester of an aromatic dicarboxylic acid, and the monomer (ii) may be, for example, a polyalkylene glycol such as polyethylene glycol. A polycarboxylic acid may also be mixed with a branched polyester resin (component (A)) produced by copolymerization. Examples of the polycarboxylic acid include dicarboxylic acid. By containing dicarboxylic acid, for example, the effect of improving antistatic performance can be obtained. Although the dicarboxylic acid is not particularly limited, examples thereof include oxalic acid, citric acid, tartaric acid, maleic acid, adipic acid and salicylic acid. Examples of the polycarboxylic acid include compounds containing 3 or more carboxyl groups such as ethylenediaminetetraacetic acid and sodium nitrilotriacetate. When the polycarboxylic acid is mixed with the branched polyester resin (component (A)), the mass of the polycarboxylic acid is the branched polyester resin (component (A)) in the fiber processing agent of the present invention. shall be included in the content of

(3) Component (B): Water The water (component (B)) is not particularly limited, and may be, for example, tap water, distilled water, ion-exchanged water, or the like. From the viewpoint of cost, tap water or the like is preferable.

In addition, the content of the water (component (B)) in the fiber processing agent of the present invention is not particularly limited. % or more, 400 mass % or more, or 1000 mass % or more, and may be 2500 mass % or less, 2000 mass % or less, or 1700 mass % or less. From the viewpoint of durable antistatic performance, it is preferable that the content of water (component (B)) is not too high. From the viewpoint of the stability of the dispersion, it is preferable that the content of water (component (B)) is not too small.

(4) Component (C): Nonionic Surfactant Having an Aromatic Ring The nonionic surfactant having an aromatic ring (component (C)) is not particularly limited, but is, for example, an alkylene oxide adduct of an aromatic compound. , is given. More specific examples include an alkylene oxide adduct of bisphenol A, an alkylene oxide adduct of styrenated phenol, an alkylene oxide adduct of β-naphthol, and an alkylene oxide adduct of benzyl ether. Examples of the alkylene oxide include EO (ethylene oxide). Examples of the styrenated phenol include tristyrenated phenol. Also, the component (C) may be used alone or in combination of multiple types.

In addition, the content of the aromatic ring-containing nonionic surfactant (component (C)) in the fiber processing agent of the present invention is not particularly limited. It may be 15% by mass or more, 20% by mass or more, or 25% by mass or more, and may be 80% by mass or less, 70% by mass or less, or 60% by mass or less based on the mass of the component. Further, the content of the nonionic surfactant having an aromatic ring (component (C)) is, for example, 30 to 300% by mass, 50 It may be up to 200% by weight, or 70-150% by weight. From the viewpoint of durable antistatic performance, it is preferable that the content of component (C) is not too high. From the viewpoint of dispersibility in water, it is preferable that the content of component (C) is not too low.

(5) Optional Components The fiber processing agent of the present invention may or may not contain optional components other than the components (A) to (C). Examples of the optional component include aromatic sulfonates. By containing the aromatic sulfonate, for example, the effect of improving the antistatic performance immediately after fiber processing (unwashed state) can be obtained. The aromatic sulfonate is not particularly limited, but examples thereof include salts of sulfonic acids such as p-toluenesulfonic acid, meta-xylenesulfonic acid and cumenesulfonic acid. The aromatic sulfonate may be, for example, a salt of any metal, such as an alkali metal (sodium, potassium, etc.), an alkaline earth metal (calcium, magnesium, etc.), or the like. From the viewpoint of antistatic performance, the aromatic sulfonate is particularly preferably a sodium salt, and examples thereof include sodium p-toluenesulfonate, sodium meta-xylenesulfonate, and sodium cumenesulfonate. Other optional components include, for example, cationic surfactants. Containing a cationic surfactant is preferable from the viewpoint of dispersibility in water. Although the cationic activator is not particularly limited, examples thereof include quaternary ammonium salts such as monoalkylammonium chloride and dialkylammonium chloride. The quaternary ammonium salt is particularly preferably dipalalkyldimethylammonium chloride or dihydrogenated tallow alkyldimethylammonium chloride.

In addition, the content of the optional component in the fiber processing agent of the present invention is not particularly limited. For example, when the aromatic sulfonate is added, the mass of the aromatic sulfonate is, for example, 10% by mass or more and 15% by mass with respect to the mass of all components other than the water (component (B)). or more, or 20% by mass or more, and may be 50% by mass or less, 45% by mass or less, or 40% by mass or less. The mass of the aromatic sulfonate is, for example, 0.1 to 10% by mass, 1 to 5% by mass, based on the total mass of the fiber processing agent of the present invention that also contains the water (component (B)). Alternatively, it may be 1.5 to 4.5% by mass. From the viewpoint of the stability of the dispersion, it is preferable that the content of the aromatic sulfonate is not too high. In addition, from the viewpoint of improving the antistatic performance immediately after the fiber processing (before washing), it is preferable that the content of the aromatic sulfonate is not too small.

Further, the mass of the aromatic sulfonate is, for example, 50% by mass or more, 60% by mass or more, or 70% by mass or more with respect to the mass of the nonionic surfactant having the aromatic ring (component (C)). may be 200% by mass or less, 160% by mass or less, or 140% by mass or less. From the viewpoint of the stability of the dispersion, it is preferable that the content of the aromatic sulfonate is not too high. In addition, from the viewpoint of improving the antistatic performance immediately after the fiber processing (before washing), it is preferable that the content of the aromatic sulfonate is not too small.

[2. Manufacturing method of textile processing chemical]
The method for producing the textile processing chemical of the present invention is not particularly limited, but for example, all components are mixed, and all components other than the water (component (B)) are dispersed in the water (component (B)). Let it be. Specifically, for example, it can be performed as follows.

First, the branched polyester resin (component (A)) and the aromatic ring-containing nonionic surfactant (component (C)) are mixed and dissolved while heating. The heating temperature is not particularly limited, but may be, for example, 80° C. or higher, or 100° C. or higher, or 180° C. or lower, or 160° C. or lower. The heating time is also not particularly limited, but may be, for example, 10 minutes or longer, or 20 minutes or longer, and may be 2 hours or shorter, or 1.5 hours or shorter.

On the other hand, the water (component (B)) is heated to prepare hot water. The temperature of the hot water is not particularly limited, but may be, for example, 40° C. or higher, or 80° C. or higher, or 100° C. or lower, or 95° C. or lower. Then, a solution of the branched polyester resin (component (A)) and the aromatic ring-containing nonionic surfactant (component (C)) is added to the hot water, and stirred if necessary. to disperse. At this time, if necessary, the optional components (for example, aromatic sulfonate, etc.) may be added. The aqueous dispersion thus obtained can be cooled to room temperature by standing to cool as it is to produce the textile processing agent of the present invention.

[3. Method of using fiber processing chemicals]
The method of using the textile processing chemical of the present invention is not particularly limited, but for example, a textile product may be immersed in the textile processing chemical of the present invention or its water-diluted solution, and then dried. Moreover, after the immersion, the textile product may be squeezed before being dried, or may be heated during the immersion, if necessary. By processing the textile product in this way, it is possible to impart a suitable function (for example, antistatic performance) to the textile product. Examples of the textile product include, but are not limited to, cloth, clothes, carpet, and non-woven fabric. The type of the fiber is also not particularly limited, but it may be either natural fiber or artificial fiber, and examples thereof include polyester fiber and a blended product of polyester fiber and other fiber. As described above, the fiber processing agent of the present invention may be used as it is, or may be used as a water-diluted solution. When used as a water dilution, the mass of the fiber processing agent of the present invention may be, for example, 1% by mass or more, 2% by mass or more, or 3% by mass or more relative to the water dilution, and may be 20% by mass. % or less, 15 mass % or less, or 10 mass % or less.

The use of the textile processing chemical of the present invention is not particularly limited, but it can be used, for example, as a durable antistatic agent for textiles, a water absorbing agent, and the like.

Next, examples of the present invention will be described. However, the present invention is not limited to the following examples.

[Synthesis Examples 1 to 5]
A polyester resin was synthesized (manufactured) as follows. The polyester resins of Synthesis Examples 2, 3, 4 and 5 below are branched polyester resins obtained by copolymerizing the monomers (i) to (iii), and are the components ( It corresponds to A). On the other hand, Synthesis Example 1 below is a linear polyester resin in which a polyol having 3 or more hydroxyl groups (monomer (iii)) is not copolymerized.

(Synthesis example 1)
60 g of dimethyl terephthalate, 90 g of ethylene glycol, and 0.3 g of zinc acetate as a catalyst were placed in a reactor, and transesterification was carried out at 180° C. for 1 hour. At this time, methanol produced by the transesterification reaction was distilled at around 140°C. After the transesterification reaction, 240 g of polyethylene glycol (Mw 3,000) and 2.7 g of ADEKA STAB AO-330 (trade name of ADEKA Co., Ltd.) as an antioxidant were added to the reaction vessel, and the temperature was again raised to 180°C. After that, the pressure was reduced. Subsequently, the temperature was raised and the pressure was reduced, and the condensation reaction was carried out at 240 to 250° C. and 10 torr (about 1.3×10 ³ Pa) or less for 3 hours to obtain the intended polyester resin. The weight average molecular weight (Mw) of this polyester resin was 25,000.

(Synthesis example 2)
The same operation as in Synthesis Example 1 was performed except that 238.4 g of polyethylene glycol (Mw 3,000) and 0.6 g of pentaerythritol were used instead of 240 g of polyethylene glycol (Mw 3,000) to obtain the desired branched A type polyester resin was obtained. The weight average molecular weight (Mw) of this polyester resin was 25,000.

(Synthesis Example 3)
The same operation as in Synthesis Example 1 was performed except that 238.7 g of polyethylene glycol (Mw 3,000) and 0.3 g of glycerin were used in place of 240 g of polyethylene glycol (Mw 3,000) to obtain the desired branched type. A polyester resin was obtained. The weight average molecular weight (Mw) of this polyester resin was 25,000.

(Synthesis Example 4)
The same operation as in Synthesis Example 2 was carried out except that 50 g of dimethyl terephthalate and 10 g of dimethyl isophthalate were used instead of 60 g of dimethyl terephthalate to obtain the intended branched polyester resin. The weight average molecular weight (Mw) of this polyester resin was 25,000.

(Synthesis Example 5)
The same operation as in Synthesis Example 2 was performed, and 0.6 g of tartaric acid was mixed after the reaction to obtain the target branched polyester resin. The weight average molecular weight (Mw) of this polyester resin was 25,000.

[Examples and Comparative Examples]
Textile processing chemicals of Examples 1 to 6 and Comparative Examples 1 to 3 were produced as follows.

(Example 1)
3 g of the polyester resin (component (A)) obtained in Synthesis Example 2 and 3 g of EO (ethylene oxide) 10 mol adduct of bisphenol A (component (C)) were mixed at 100 to 120° C. and dissolved. . The dissolved material was added to 94 g of warm water (component (B)) at 90° C., and then gradually cooled to room temperature to obtain an aqueous dispersion of polyester resin (processing agent for fibers).

(Example 2)
An aqueous dispersion of a polyester resin (fiber processing agent) was obtained in the same manner as in Example 1, except that 3 g of sodium meta-xylene sulfonate (aromatic sulfonate) was added to the warm water.

(Example 3)
Aqueous dispersion of polyester resin (processing chemical for fibers) was prepared in the same manner as in Example 1, except that 16 mol of EO adduct of tristyrenated phenol was used as component (C) instead of 10 mol of EO adduct of bisphenol A. got

(Example 4)
An aqueous dispersion of a polyester resin (fiber processing agent) was obtained in the same manner as in Example 2, except that the polyester resin obtained in Synthesis Example 3 was used as the component (A).

(Example 5)
An aqueous dispersion of a polyester resin (fiber processing chemical) was obtained in the same manner as in Example 2, except that the polyester resin obtained in Synthesis Example 4 was used as the component (A).

(Example 6)
As component (A), the polyester resin obtained in Synthesis Example 5 was used, and di-long-chain alkyl (12 to 18 carbon atoms) dimethylammonium chloride was used in place of sodium meta-xylene sulfonate (aromatic sulfonate). An aqueous dispersion of a polyester resin (fiber processing chemical) was obtained in the same manner as in Example 2, except that 0.5 g was used.

(Comparative example 1)
An aqueous dispersion of a polyester resin (fiber processing chemical) was obtained in the same manner as in Example 1, except that 3 g of the polyester resin obtained in Synthesis Example 1 was used instead of the polyester resin obtained in Synthesis Example 2. .

(Comparative example 2)
An aqueous dispersion of a polyester resin (fiber processing chemical) was obtained in the same manner as in Example 1, except that the 10 mol EO adduct of bisphenol A (component (C)) was not added.

(Comparative Example 3)
Aqueous dispersion of polyester resin (fiber processing chemical) in the same manner as in Example 1 except that 3 g of 10 mol adduct of lauryl alcohol EO was used instead of 10 mol EO adduct of bisphenol A (component (C)). got

[Performance evaluation]
The performance of the fiber finishing chemicals of Examples 1-6 and Comparative Examples 1-3 was evaluated (tested) by the following methods.

[Dispersibility in water]
Aqueous dispersions (5% by mass aqueous dispersions) obtained by diluting the fiber processing chemicals of Examples 1 to 6 and Comparative Examples 1 to 3 with water 20 times (mass ratio), respectively, were applied to an 80 mesh filter cloth. and the dispersibility was visually evaluated based on the presence or absence of residue. The evaluation criteria were evaluated by ◯, Δ or × as follows.

○: no residue △: little residue ×: much residue

[Fiber processing method]
A polyester double picket cloth was used as a sample (textile product). The cloth was immersed in an aqueous dispersion (5% by mass aqueous dispersion) obtained by diluting each of the fiber processing chemicals of Examples 1 to 6 and Comparative Examples 1 to 3 with water 20 times (mass ratio). . Thereafter, the cloth was squeezed with a mangle at a squeeze rate of 70%, and further dried at 130° C. for 2 minutes using a tenter. As described above, the cloth (textile product) was processed with the textile processing chemical.

[Washing test]
The fabrics (textile products) treated with the textile processing chemicals of Examples 1 to 6 and Comparative Examples 1 to 3 were subjected to a washing test using the following washing machine and detergent based on JIS L 0217 103 method. gone.

Washing machine: Fully automatic washing machine Detergent: Phosphorus-free top (product name of Lion Corporation)

[Antistatic performance]
JIS L 1094 charging property test method before washing (no washing) and after 5 washings of the fabrics (textile products) treated with the textile processing chemicals of Examples 1 to 6 and Comparative Examples 1 to 3, respectively. Antistatic performance was measured by triboelectric voltage measurement method and half-life measurement method according to .

Table 1 below shows the performance of each of the fiber finishing chemicals of Examples 1 to 6 and Comparative Examples 1 to 3 evaluated as described above, together with the composition of each fiber finishing chemical.

As shown in Table 1, all of the fiber processing agents of Examples 1 to 6 had good dispersibility in water. Then, according to the fiber processing agents of Examples 1 to 6, as a result of processing the cloth (fiber product), antistatic performance was imparted. Furthermore, the fabrics treated with the textile finishing agents of Examples 1-6 did not lose their antistatic properties even after five washes. That is, it was confirmed that the textile processing chemicals of Examples 1 to 6 function as durable antistatic agents that are also excellent in washing durability.

On the other hand, none of the fiber processing agents of Comparative Examples 1 to 3 had good dispersibility in water. Specifically, in Comparative Example 1 using the linear polyester resin of Synthesis Example 1, even if 10 moles of EO adduct of bisphenol A (nonionic surfactant having an aromatic ring, component (C)) was used, Dispersibility in water was not good. On the other hand, in Comparative Examples 2 and 3, the branched polyester resin of Synthesis Example 2 was used, but no nonionic surfactant was added (Comparative Example 2), or lauryl As a result of using EO 10 mol adduct of alcohol (nonionic surfactant having no aromatic ring) (Comparative Example 3), dispersibility in water was not good. For this reason, in Comparative Examples 1 to 3, the textile processing chemical did not adhere to the cloth, and the antistatic performance and washing durability could not be evaluated. In Comparative Examples 2 and 3, even when the branched polyester resin of Synthesis Example 2 was changed to the branched polyester resin of Synthesis Example 3, the same results were obtained.

Claims (11)

including the following components (A) to (C),
Component (A) below is a copolymer obtained by polymerizing at least the following monomers (i) to (iii),
The following component (C) is one selected from the group consisting of an alkylene oxide adduct of bisphenol A, an alkylene oxide adduct of styrenated phenol, an alkylene oxide adduct of β-naphthol, and an alkylene oxide adduct of benzyl ether. or two or more types of textile processing agents.

(A) branched polyester resin (B) water (C) nonionic surfactant having an aromatic ring

(i) at least one of a divalent aromatic carboxylic acid and a derivative thereof (ii) a diol (iii) a polyol having 3 or more hydroxyl groups 2. The textile processing agent according to claim 1, wherein in said monomer (i), said divalent aromatic carboxylic acid is at least one of terephthalic acid and isophthalic acid. 3. The textile processing chemical according to claim 1, wherein said diol in said monomer (ii) is at least one of ethylene glycol and polyethylene glycol. 4. The textile processing chemical according to any one of claims 1 to 3, further comprising an aromatic sulfonate. 5. The textile processing chemical according to claim 4, wherein the aromatic sulfonate has a mass of 50% by mass or more and 200% by mass or less with respect to the mass of the component (C). 6. The textile processing chemical according to any one of claims 1 to 5, further comprising a cationic surfactant. In the component (A) branched polyester resin,
The amount of the monomer (i) used is 5% by mass or more and 50% by mass or less of the total copolymerization component,
The amount of the monomer (ii) used is 50% by mass or more and 94% by mass or less of the total copolymerization component,
7. The fiber processing chemical according to any one of claims 1 to 6, wherein the monomer (iii) is used in an amount of 0.05% by mass or more and 1% by mass or less of the total copolymer components. 8. Any one of claims 1 to 7, wherein the content of the water (component (B)) is 200% by mass or more and 2500% by mass or less with respect to the mass of all components other than the water (component (B)). The fiber processing agent according to item 1. 9. The content of the component (C) is 15% by mass or more and 80% by mass or less with respect to the mass of all components other than the water (component (B)). A textile processing agent as described. The fiber processing chemical according to any one of claims 1 to 9, wherein the content of component (C) is 30 to 300% by mass relative to the mass of the branched polyester resin (component (A)). . 6. The processing for fibers according to claim 4 or 5 , wherein the mass of the aromatic sulfonate is 10% by mass or more and 50% by mass or less with respect to the mass of all components other than the water (component (B)). drug.