JP2583814B2 - Electrostatic water-repellent processing method for fabric containing synthetic fiber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic and water repellent method for fabrics, and more particularly to a method for imparting antistatic durability and durable water repellency to a fabric containing synthetic fibers.

[0002]

2. Description of the Related Art Conventionally, when imparting antistatic properties and durable water repellency to a cloth containing synthetic fibers, a normal durable water repellent finish is used by using synthetic fibers containing a polymer component having an antistatic effect. In addition, a cationic or anionic antistatic agent or the like was used as an antistatic agent in the water-repellent finishing bath.

[0003] However, in the former method, the antistatic effect becomes insufficient because the fluoropolymer covers the fiber surface by the water-repellent finish. Further, the latter method has a drawback that the water repellency becomes poor depending on the kind of the antistatic agent, and the durability of the antistatic property is insufficient.

Japanese Patent Publication No. 55550/1990 discloses a method in which a treatment liquid containing a cationic antistatic agent, an anionic antistatic agent and a fluorine-based water repellent in one bath is applied to a synthetic fiber structure. A method for obtaining the property and durability and water repellency is described, but there are cases where sufficient performance cannot be obtained in terms of the antistatic durability.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a method of producing a fabric having both excellent antistatic durability and durable water repellency. Is what you do.

[0006]

That is, the present invention provides a treatment for treating a fabric containing synthetic fibers by adding an antistatic agent having a quaternary ammonium ion group, a zirconium salt of an organic acid and a fluorine-based water repellent to one bath. After the application of the liquid, the method is subjected to a heat treatment.

In the present invention, the fabric containing synthetic fibers includes polyethylene terephthalate, polybutylene terephthalate, polyoxyethoxy benzoate, polyethylene naphthalate, cyclohexane dimethylene terephthalate, and polyesters further containing isophthalic acid, adipic acid, Polyester obtained by copolymerizing a dicarboxylic acid component such as sulfoisophthalic acid and a diol component such as propylene glycol, butylene glycol, cyclohexane dimethanol and diethylene glycol;
-Refers to woven, knitted and non-woven fabrics containing synthetic fibers such as nylon, 6,6-nylon, aromatic nylon, polypropylene, polyacrylonitrile and the like. The content of the synthetic fiber is preferably 50% or more.

The antistatic agent having a quaternary ammonium ion group used in the method of the present invention is not particularly limited.
Preferably, a cationic antistatic agent described in JP-B-2-55550 can be used. The cationic antistatic agent is shown in Chemical formula 1.

[0009]

Embedded image Wherein R is an alkyl group having 8 to 18 carbon atoms, R ′ and R ″ are each an alkyl group having 1 to 3 carbon atoms, and R ′ ″ is —CH ₃ , -CH ₂ CH
₃ is a -CH ₂ CH ₂ OH, or benzyl group, X is C
1, CH ₃ SO ₄ or CH ₃ CH ₂ SO ₄ . Examples of the cationic antistatic agent include substances shown in Chemical formula 2.

[0010]

Embedded image Further, the cationic antistatic agent described in JP-B-2-52028 can also be preferably used. What is the cationic antistatic agent

[0011]

Embedded image (Wherein R is hydrogen or a methyl or ethyl group, R ₁ is C
F ₃ or CF ₂ H, fluorine-containing monomer 5-80 parts by weight indicated by n is an integer of 1 to 10), and of 4

[0012]

Embedded image (Wherein, R is hydrogen or a methyl group, R ₁ and R ₂ are each an alkyl group having 1 to 3 carbon atoms, and R ₃ is —CH ₃ , —C ₂
H ₅ , —CH ₂ CH ₂ OH or a benzyl group, and X is C
1, Br, I, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ ,

[0013]

Embedded image Or

[0014]

Embedded image It is. ) Is a copolymer made from 95 to 20 parts by weight of a quaternary ammonium salt monomer. Incidentally, a cationic antistatic agent described in JP-A-1-280078 can also be used. The cationic antistatic agent is shown in Chemical formula 7.

[0015]

Embedded image (Wherein, R, R ₁ and R ₂ are an alkyl group having 1 to 18 carbon atoms, —CH ₂ CH ₂ OH, —CH ₂ CH ₂ C
H ₂ OH, or

[0016]

Embedded image And R ₃ is —CH ₃ , —CH ₂ CH ₃ , —CH ₂ C
_{H 2 OH, -CH 2 CH 2} CH 2 OH,

[0017]

Embedded image Or

[0018]

Embedded image Wherein at least one of R, R ₁ , R ₂ , and R ₃ has an OH group, and X is Br, I, Cl, CH ₃
SO ₄ or CH ₃ CH ₂ SO ₄ . In the method of the present invention, the antistatic agent having a quaternary ammonium ion group is used in an amount of from 0.1 to 0.1% based on a fabric containing synthetic fibers.
It is applied in an amount of 1% by weight, preferably 0.2-0.75% by weight.

The zirconium salt of an organic acid includes
Examples include zirconium formate and zirconium acetate. In the present invention, the zirconium salt means not only a normal salt thereof but also, for example, ZrO (CH ₃ COO) ₂ formed by decomposition of Zr (CH ₃ COO) ₄ in air. With a zirconium salt of hydrochloric acid or sulfuric acid, durability of antistatic property cannot be obtained. The zirconium salt of the organic acid is applied in an amount of 5 to 100% by weight, preferably 20 to 50% by weight, based on the antistatic agent having a quaternary ammonium ion group.

The fluorine-based water repellent used in the present invention is known. Those having a perfluoroalkyl group as a main component are preferred. The water repellent is applied in an amount of from 0.3 to 1% by weight, preferably from 0.5 to 0.75% by weight, based on the fabric containing the synthetic fibers.

Outside of the above range, the antistatic properties, durability and durability of water repellency are likely to decrease. Further, an antistatic agent having a quaternary ammonium ion group, a zirconium salt of an organic acid, and a fluorine-based water repellent are included in one bath. Preferably, an aqueous bath is used.

In the present invention, an aminoplast resin may be further contained in the treatment bath in order to improve the durability and water repellency.
Suitable aminoplast resins include, for example, dimethylol dihydroxyethylene urea, triazone formaldehyde, urea formaldehyde, ethylene urea formaldehyde, and other N-methylol compounds and N-methylol ether compounds used together with an amino salt or a metal salt as a curing catalyst. Can be. The aminoplast resin is preferably added in an amount of 0.05 to 0.5% by weight based on the fabric containing the synthetic fibers.

The bath containing the antistatic agent having a quaternary ammonium ion group, a zirconium salt of an organic acid and a fluorine-based water repellent, preferably an aminoplast resin, may be formed by a suitable method such as immersion drawing or spraying. Is applied to the fabric. Next, preferably one drying
Perform at 00-120 ° C for 2-5 minutes. Subsequently, a heat treatment is performed. The heat treatment is preferably performed at 120 to 170 ° C. for 3 hours.
Perform for 0 seconds to 3 minutes.

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

[0025]

EXAMPLES scouring in a conventional manner, preset, dyed, washed with hot water, washed with water, dehydrated and dried warp 70 denier / 36 filament weft 70 denier / 36 filament, basis weight 90 g / m ² of 6-nylon 100% nylon A treatment liquid having the following composition was padded on a yarn cloth, squeezed with a pickup of 50%, dried at 120 ° C. for 2 minutes, and then heat-treated at 170 ° C. for 30 seconds.

<Treatment liquid composition> Asahigard LS-317 (fluorine water repellent): 5% Sumitex resin M-3 (melamine resin): 0.3
% Accelerator ACX (Organic amine salt): 0.3% antistatic agent _{[(C 2 H 5) 4} N + · C 2 H 5 S
O ₄ ⁻ ]: 0.5% zirconium acetate [ZrO (CH ₃ COO) ₂ ): 0.
The water repellency, charged voltage and friction fastness of the fabric to which the treatment liquid was applied were as shown in Table 1, and the fabric was excellent in antistatic property and water repellency, and also excellent in friction fastness. Was.

[0027]

COMPARATIVE EXAMPLE The same procedure as in Example was carried out except that a treating solution having the following composition and containing no zirconium salt of an organic acid was used.

<Treatment liquid composition> Asahigard LS-317 (fluorine water repellent): 5% Sumitex resin M-3 (melamine resin): 0.3
% Accelerator ACX (Organic amine salt): 0.3% antistatic agent _{[(C 2 H 5) 4} N + · C 2 H 5 S
O ₄ ⁻ ]: 0.5% The water repellency, charged voltage and rub fastness of the fabric to which the treatment liquid was applied are as shown in Table 1, and the water repellency durability and rub fastness were good. However, the charged voltage after washing was as poor as 2,000 V, and the antistatic durability was inferior to the fabric produced by the method of the present invention.

The test methods used in the examples and comparative examples are as follows.

Washing resistance: JIS L-0217-103 Water repellency: JIS L-1092 (spray method) Charge potential: Measured by Kyoto University rotary static tester Friction fastness: JIS L-849

[0031]

[Table 1]

[0032]

As described above, by using the method of the present invention, it is possible to impart antistatic durability and durable water repellency to a fabric containing synthetic fibers.

Claims (1)

(57) [Claims] 1. A treatment solution containing an antistatic agent having a quaternary ammonium ion group, a zirconium salt of an organic acid and a fluorine-based water repellent in one bath is applied to a fabric containing synthetic fibers, followed by heat treatment. An anti-static and water-repellent processing method for a fabric containing synthetic fibers.