JP2660983B2 - Antistatic and water-repellent processing methods for synthetic fiber structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing static electricity and water repellency of a synthetic fiber structure.

[0002]

2. Description of the Related Art Although synthetic fibers are hydrophobic, few of them are so strong that they exhibit a water-repellent function. Things can be mentioned. Therefore, usually, an organic compound having a perfluoroalkyl group as a main component is applied to a synthetic fiber structure, and water repellency is imparted by heat treatment. However, synthetic fiber structures, especially these water-repellent products, generally have a property of easily accumulating static electricity, and are liable to cause various phenomena such as clinging of clothes, adsorption of dust, spark discharge, and the like, which are obstacles to use. There are many. In addition, sometimes it is charged with a high voltage, giving the wearer discomfort.

[0003] In order to eliminate such drawbacks, conventionally, a fluorine-based water repellent is repelled with a cationic antistatic agent, an anionic antistatic agent, a nonionic antistatic agent, an organic amine salt, an inorganic salt, or the like. A method in combination with a water processing agent is usually performed. However, for example, in the case of a cationic antistatic agent, low-temperature treatment shows a good antistatic effect, but does not provide washing durability water repellency. On the other hand, there is a disadvantage that the antistatic function is lost in the high-temperature treatment. Anionic antistatic agents, organic amine salts and inorganic salts are not preferred because they also lower the initial performance of water repellency and the washing durability. In addition, since the nonionic antistatic agent has low antistatic ability, it must be used in a large amount in order to obtain sufficient antistatic properties, and the water-repellent washing durability is significantly reduced. Because of the above problems, it is very difficult to impart antistatic performance while maintaining the washing durability of water repellency, and there has been no satisfactory treatment method.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for imparting antistatic performance and water repellency having washing durability to a synthetic fiber structure.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for preventing static electricity and water-repellent a synthetic fiber structure.
After applying a treatment liquid containing a fluorine-based water repellent, a quaternary ammonium salt-based antistatic agent having a hydroxyl group and a blocked isocyanate to a synthetic fiber structure, the synthetic fiber structure is heated. Achieved by antistatic and water repellent methods.

Hereinafter, the present invention will be described in detail.

In the present invention, the synthetic fiber structure is defined as polyethylene terephthalate, polybutylene terephthalate, polyoxyethoxybenzoate, polyethylene naphthalate, cyclohexane dimethylene terephthalate, and these polyesters further containing isophthalic acid, adipic acid, sulfo acid as an additional component. Polyester obtained by copolymerizing a dicarboxylic acid component such as isophthalic acid and a diol component such as propylene glycol, butylene glycol, cyclohexanedimethanol and diethylene glycol;
-Yarns, knits, woven fabrics and non-woven fabrics containing synthetic fibers such as nylon, 6,6-nylon, aromatic nylon, polypropylene, polyacrylonitrile, etc.

[0008] The fluorine-based water repellent used in the present invention itself is known. Those having a perfluoroalkyl group as a main component are preferred. The water repellent is applied in an amount of 0.3 to 1.5% by weight, preferably 0.5 to 1% by weight, based on the synthetic fiber structure.

The quaternary ammonium salt-based antistatic agent having a hydroxyl group used in the present invention is represented by the following chemical formula 1
Those represented by the general formula (1) shown below are preferred.

[0010]

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In the formula, R ₁ , R ₂ and R ₃ are an alkyl group having 1 to 5 carbon atoms, and R ₄ is —CH ₂ —, —C
H ₂ CH ₂ —, —CH ₂ CH ₂ CH ₂ —, —CH ₂ CH
₂ OCH ₂ CH (OH) CH ₂ OH and R ₅ is C
1, CH ₃ SO ₄ or CH ₃ CH ₂ SO ₄ .

Such a quaternary ammonium salt-based antistatic agent having a hydroxyl group is used in an amount of 10 to 80 with respect to the fluorine-based water repellent.
% By weight, particularly preferably 20 to 60% by weight.

[0013] The blocked isocyanates used in the present invention are known per se. Those that do not alienate water repellency,
For example, those obtained by blocking tolylene diisocyanate, diphenylmethane, or 4,4′-diisocyanate with an oxime-based blocking agent are preferable. Such a blocked isocyanate is used in an amount of 10 to 200% by weight, especially 2% by weight, based on the quaternary ammonium salt-based antistatic agent having a hydroxyl group.
It is preferable to use 0 to 150% by weight.

A bath containing a fluorine-based water repellent, a quaternary ammonium salt-based antistatic agent having a hydroxyl group, and a blocked isocyanate is applied to a synthetic fiber structure by an appropriate method such as a dipping method, a padding method, or a spray method. Will be applied. Next, drying is preferably performed at 80 to 130 ° C. for 20 minutes.
Perform for seconds to 5 minutes. Next, heat treatment is performed. The heat treatment is preferably performed at 120 to 200 ° C. for 20 seconds to 5 minutes.

[0015]

The quaternary ammonium salt-based antistatic agent having a hydroxyl group has a hydroxyl group cross-linked by a blocked isocyanate as a cross-linking agent, and becomes insoluble in water, so that sufficient washing durability can be obtained. Further, since the blocked isocyanate does not alienate the water repellency, sufficient water repellency is maintained.

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

[0017]

【Example】

Example 1 Warp (polyethylene terephthalate filament 75 denier / filament number 36 / twisting number 200) and weft (fibrillated conjugate fiber composed of 6 nylon and polyethylene terephthalate 50 denier / filament number 25/3, twisting number 110) were used. Twill weaving machine (density;
115 x 77 bottles / inch) 18% benzyl alcohol
Emulsion (emulsifier: Nikka Kagaku Sunmall BK20)
Conc. (Using 1.8%) at a squeezing ratio of 50%, and then wound up and left for 10 minutes while rotating idle. After completing fibrillation in this way,
Hot water washing was performed to remove benzyl alcohol.

Then, after heat setting at 190 ° C. for 30 seconds, raising is carried out with a sanding napping machine (240 mesh), and subsequently, using a jet dyeing machine, at a temperature of 130 ° C. (pressure 3. 5 kg / cm ² ), bath ratio 1:
Staining was performed at 10 for 60 minutes.

<Dyeing Prescription> Kayaron Polyester Yellow 4GE (Disperse Dye, Nippon Kayaku Co., Ltd.): 1% by weight (based on fabric weight) Kayaron Polyester N Blue TKSF (Disperse Dye, Nippon Kayaku Co., Ltd.): 0. 03% by weight (based on fabric weight) Nikka San Salt RM300 (nonionic, anionic activator, manufactured by Nichika Chemical Co., Ltd.): 1 cc / l (dyeing bath) Linkat (phosphorus-free organic acid, manufactured by Fuso Chemical Co., Ltd.): 0.2
cc / l (for dyeing bath)

Next, a processing solution having the following prescription is padded at a squeezing rate of 50%, dried at a temperature of 100 ° C. for 1 minute, and then subjected to a heat treatment at a temperature of 120 ° C. for 1 minute. The product of Example 1 is obtained.

<Finishing Formula> Asahigard AG925 (fluorine-based water repellent, manufactured by Meisei Chemical Co., Ltd., active ingredient: 20% by weight): 5% by weight (to solution) Meikanate MF (block isocyanate, manufactured by Meisei Chemical Co., Ltd., effective Component 30% by weight): 0.5% by weight (for solution) (A) represented by the following formula (A) (quaternary ammonium salt-based antistatic agent having a hydroxyl group): 0.5% by weight (for solution)

[0022]

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Comparative Example 1 A product of Comparative Example 1 was obtained in the same manner as in Example 1, except that only the fluorine-based water repellent was used as the finish formulation.

Comparative Example 2 Comparative Example 2 was carried out in the same manner as in Example 1 except that (B) represented by the following chemical formula 3 was used instead of (A) represented by the chemical formula 2 in Example 1. Got the product.

[0025]

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Table 1 shows the water repellency and the triboelectric voltage of the products obtained in Example 1, Comparative Example 1 and Comparative Example 2. The washing resistance is JIS L-0217 103 method, and the water repellency is J
ISL-1092 (spray method), friction band voltage is JIS
It was measured by the L-1094B method.

[0027]

[Table 1]

As is clear from Table 1, it can be seen that the products obtained in the examples show good antistatic property and water repellency even after washing three times.

[0029]

As described in detail above, the present invention achieves both a high level of antistatic performance and excellent water repellency with excellent washing resistance. In view of the fact that one of the water performances was sacrificed, the effect of the present invention is remarkable. The obtained fiber structure is very useful for casual applications such as blousons, sports applications, and the like.

Claims (1)

(57) [Claims] 1. A method for preventing static electricity and water repellency of a synthetic fiber structure, comprising treating a treating solution containing a fluorine-based water repellent, a quaternary ammonium salt-based antistatic agent having a hydroxyl group, and a blocked isocyanate with a synthetic fiber. A method for preventing static electricity and water repellency of a synthetic fiber structure, comprising applying heat to the structure after applying it to the structure.