JP2003049365A - Cloth containing modified polyester fiber and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cloth containing a polyester fiber and having stainproofness and antistaticity with excellent wash resistance and provide a method for the production of the cloth. SOLUTION: The cloth is produced by immersing a cloth containing a polyester fiber in an aqueous solution containing N-methylol acrylamide, squeezing and drying the immersed cloth, subjecting the cloth to a low-temperature plasma treatment with a non-polymerizable gas, immersing the treated cloth in an aqueous solution containing a hydrophilic resin and an acidic catalyst or a latently acidic catalyst and squeezing, drying and heat-treating the product.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention improves anti-soil redeposition properties to prevent redeposition of oily soil components during washing and stain removability, and further minimizes static electricity generated during wearing and undressing. The present invention relates to a polyester-based fiber-containing fabric that can be manufactured.

[0002]

2. Description of the Related Art At present, many techniques have been disclosed as processing methods for imparting antifouling properties and antistatic properties to polyester fibers. Japanese Patent Publication No. 53-47437 proposes a method of exhausting and adsorbing a hydrophilic resin such as a water-soluble polyester resin or polyethylene glycol at a high temperature. However, in this method, since it is fixed to the polyester fiber using a dyeing machine, it is impossible to process in a dyeing factory that does not have a batch type dyeing machine such as a jet dyeing machine and an airflow dyeing machine. Also, there is a problem that the anti-fouling property and anti-static washing durability do not have sufficient performance in practical use. Japanese Patent Publication No. 51-2559 proposes a method of continuously processing by the pad steam method. However, even with this method, the washing durability of antifouling property and antistatic property is sufficient in practical use. There is a problem not. Japanese Patent Application Laid-Open No. 59-106568 proposes a technique in which a cationic or nonionic antistatic agent is applied to polyester fibers and then low-temperature plasma treatment is performed, but only the antistatic property is improved and the antifouling property is improved. There is a problem in that the improvement of

Japanese Unexamined Patent Publication (Kokai) No. 62-162079 proposes a technique of applying a low temperature plasma treatment after applying a polyethylene glycol-based resin. However, even with this method, antifouling property and antistatic washing durability are practically used. However, there is a problem in that it does not have sufficient performance. Patent No. 29441
In Japanese Patent Laid-Open No. 67, a method is proposed in which a treatment liquid containing a polyethylene glycol-based resin and a water-soluble polyethylene glycol-based resin is applied, followed by drying and low-temperature plasma treatment. According to this method, Japanese Patent Publication No. 53-47437, Japanese Patent Publication No. 51-2559, and Japanese Patent Laid-Open No. 62-162079.
Compared with the publication, a considerable improvement in anti-fouling property and anti-static washing durability is recognized, but consumers are demanding further improvement. Japanese Patent Laid-Open No. 05-28
Japanese Patent No. 7671 proposes a method of applying a mixture of polyethylene glycol and colloidal silica to a polyester fiber structure, drying the mixture, and then performing low-temperature plasma treatment. This method only improves the mechanical properties of the fabric, but does not improve the antifouling and antistatic properties. Japanese Patent Application Laid-Open No. 07-30070 proposes a technique of graft-polymerizing collagen on the surface of polyester, but this method improves antistatic property but does not have sufficient antifouling property. There's a problem.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is a polyester fiber-containing cloth having excellent anti-fouling property and antistatic property, which is excellent in washing durability, and its production. It is intended to provide a method.

[0005]

The present invention solves the above-mentioned problems and has the following structure. That is, the present invention relates to "a modified polyester fiber-containing cloth in which a polyester fiber and a hydrophilic compound are fixed to each other via N-methylol acrylamide", and "a polyester fiber to N-methylol acrylamide". Production of a modified polyester fiber-containing fabric characterized in that it is impregnated with an aqueous solution containing it and dried, then subjected to low-temperature plasma treatment with a non-polymerizable gas, and further impregnated with an aqueous solution containing a hydrophilic compound, followed by drying and heat treatment. "Method" is the gist.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.
In the modified polyester fiber-containing cloth of the present invention, the polyester fiber and the hydrophilic compound are fixed to each other via N-methylol acrylamide. The polyester fiber used in the present invention is a fiber containing polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, etc. as a main component, and any polyester fiber used for fiber may be used. In addition, the above polyester fibers obtained by copolymerizing a third component such as sodium sulfoisophthalate or an EO adduct of bisphenol A, and fine particles of an inorganic or organic compound such as titanium oxide or a colored pigment are kneaded. You may use the one. The form of the polyester fiber-containing fabric of the present invention may be any of woven fabric, knitted fabric, and non-woven fabric containing 10 to 100% of polyester fiber, and as other fibers, polyamide type, acrylic type, cotton, hemp, rayon,
High wet modulus rayon, polynosic, cupra, solvent spun cellulose, acetate, wool, silk, etc.
It may be mixed with any fibers that are present.

The hydrophilic compound used in the present invention has a plurality of functional groups capable of reacting with the methylol group in N-methylolacrylamide, such as a hydroxyl group and an amino group, and reacts with the methylol group. By this, even if one part of the functional group such as a hydroxyl group or an amino group becomes hydrophobic, the other amino group,
It means one having a hydrophilic group such as a carboxyl group, a hydroxyl group or a polyoxyethylene group. Specific examples include polyalkylene glycols such as polyethylene glycol and polypropylene glycol, and a molecular weight of 500 obtained by the condensation reaction of dicarboxylic acid and polyalkylene glycol.
~ 10,000 hydrophilic polyester resins, chitosan,
Examples thereof include polysaccharides such as hyaluronic acid, cellulose and carboxymethyl cellulose, hydrophilic vinyl polymers such as polyacrylamide and polyvinyl alcohol, glycidyl ethers having a polyalkylene glycol group, other amino acids and proteins.

When a hydrophilic compound is fixed to a polyester fiber, antifouling property and antistatic property can be imparted, but among the above specific examples, a compound having a polyalkylene glycol is preferable, and more preferable. It is desirable to use a hydrophilic polyester resin having a molecular weight of 500 to 10,000 obtained by the condensation reaction of dicarboxylic acid and polyalkylene glycol.

The N-methylolacrylamide used in the present invention is a vinyl monomer having an N-methylol group as shown in the following chemical structural formula.

In the present invention, first, a polyester fiber-containing cloth is added with N-methylol acrylamide in an amount of 0.5-2.
It is impregnated with an aqueous solution containing 0% by mass, squeezed, and dried.

Next, in order to fix and react the N-methylol acrylamide with the polyester fiber, a treatment with a low temperature plasma of a non-polymerizable gas is carried out. The gas used for the low-temperature plasma treatment may be any non-polymerizable gas such as air, oxygen, nitrogen, and argon, which does not cause plasma polymerization, but it is usually air or oxygen in consideration of economy. To generate low-temperature plasma, the container containing the polyester fiber-containing cloth was depressurized with a vacuum pump, and a pressure of 13.
After adjusting the pressure to 3 to 266 Pa, electric energy is applied to cause glow discharge. At this time, the electric energy source is DC voltage, AC voltage (1KH
z-3000 MHz) may be applied, but 13.56 MHz is generally used in view of stability of plasma generation, uniformity, regulation of the Radio Law, and the like. Output is 0.1-1
The low temperature plasma treatment is performed at 0 w / cm ² and the treatment time is 10 to 240 seconds.

Next, the polyester fiber-containing cloth to which N-methylolacrylamide is fixed contains 0.5 to 20% by mass of the hydrophilic resin compound and at least one acidic catalyst or at least one latent acidic catalyst. The catalyst is 0.
It is impregnated with an aqueous solution containing 05 to 10% by mass, squeezed, dried, and heat-treated at 140 to 200 ° C. for 20 to 300 seconds to chemically react the methylol group of N-methylol acrylamide with a hydrophilic compound to form a polyester system. A hydrophilic compound is fixed to the fiber. The acidic catalyst used here refers to an organic or inorganic acid such as hydrochloric acid, sulfuric acid, citric acid, lactic acid, phosphoric acid or the like, and the latent acidic catalyst refers to a metal salt such as magnesium chloride, silver nitrate or aluminum oxide. The present invention has the above configuration.

[0013]

According to the present invention, the polyester fiber is impregnated with an aqueous solution containing N-methylolacrylamide, dried and then subjected to a low temperature plasma treatment with a non-polymerizable gas.
When impregnated with a hydrophilic compound-containing aqueous solution, dried, and heat-treated, it is not clear why the polyester fiber can be imparted with excellent stain resistance and antistatic property in washing durability, but its mechanism is not clear. I think as follows. First, N-
When methylol acrylamide is applied to a polyester fiber-containing cloth and then treated with low temperature plasma of a non-polymerizable gas, N-methylol acrylamide is graft-polymerized and fixed on the polyester fiber surface by the low temperature plasma treatment. When a hydrophilic compound is added to this, the methylol group possessed by the graft-polymerized N-methylolacrylamide is chemically bonded to the hydroxyl group, amino group, etc. in the hydrophilic compound in the presence of an acidic catalyst or a latent acidic catalyst. . As a result, since the hydrophilic compound is fixed to the polyester fiber via N-methylol acrylamide, it is considered that antifouling property and antistatic property excellent in washing durability can be imparted.

[0014]

[Examples] Next, specific examples will be described.
The measurement and evaluation of the performance of the cloth in the examples were performed by the following methods. In addition, all evaluations were done after processing and 100 times of home washing (JIS L-02171
03 method). 1. Antifouling property 1-1. Dirt removing property 0.2 ml of heavy fuel oil B was dropped on the sample and left for 20 hours.
Do home laundry. The residual state of the stain after washing was classified by the gray scale for contamination (5th grade (good) to 1st grade (bad)). 1-2. Anti-recontamination property B heavy oil 0.5g / liter, nonionic surfactant 1g / l The sample was put into the heavy oil recontamination liquid, and the bath ratio was 1:50.
After stirring at 80 ° C for 30 minutes, thoroughly wash with water, and after drying, classify by gray scale for contamination (5th grade (good) ~
It was grade 1 (poor). 2. Friction electrification voltage According to JIS L-1094 A method, temperature 20 ° C, humidity 4
It was measured at 0% RH.

Example 1 84 dte of 100% polyester for both warp and weft
x, 48 filament yarn, warp density 120 /
A plain woven fabric having a weft density of 2.54 cm and 90 wefts / 2.54 cm was woven and refined by a usual method. This woven fabric was dipped in an aqueous solution containing 5% by mass of N-methylolacrylamide based on the mass of the fiber, padded with a pickup of 60%, and dried. Next, low temperature plasma treatment was performed under the following low temperature plasma treatment condition 1. In addition, nice pole PR-86
(Nikaka Chemical Co., Ltd., polyester polyether resin) 3 mass% and Sumitex Resin X-80 (Sumitomo Chemical Co., Ltd., metal salt catalyst) 1 mass% are dipped in an aqueous solution and picked up 80 %, Squeezed, dried, and then heat-treated for 170 seconds for 60 seconds to obtain a work cloth of the present invention.

Low-temperature plasma treatment condition 1 Gas type: Air Vacuum degree: 133 Pa High frequency: 13.56 MHz Output: 1 W / cm ² Treatment time: 1 minute

Comparative Example 1 Comparative Example 1 was obtained by the same process as in Example 1 except that the same scouring fabric as in Example was used and the low temperature plasma treatment was not carried out.

COMPARATIVE EXAMPLE 2 Example 1 was used, except that the same woven fabric as in Example was used and the treatment with N-methylolacrylamide was not carried out.
Comparative Example 2 was obtained by the same steps as above.

Comparative Example 3 Using the same woven fabric as in Example 1, 30% at 130 ° C. in an aqueous solution of 3% by mass of Nicepol PR-86 (Nippon Kagaku Kogyo KK, polyester polyether resin). After exhaustion and adsorption treatment for a minute, a woven fabric of Comparative Example 3 was obtained.

Comparative Example 4 The same woven fabric as in Example 1 was used.
2% by weight of polyethylene glycol diacrylate having a polyethylene glycol unit of 00 and 0.5% by weight of ammonium persulfate are immersed in the solution, padded with a squeezing rate of 80%, and steamed at 105 ° C. for 5 minutes,
After washing with water and drying, low temperature plasma treatment was performed under low temperature plasma treatment condition 1 to obtain a woven fabric of Comparative Example 4.

Comparative Example 5 Using the same woven fabric as in Example 1, 4% by mass of Permarin MR-100 (manufactured by Sanyo Chemical Industry Co., Ltd., water-soluble polyester resin), polyethylene glycol (manufactured by Kishida Chemical Co., Ltd., molecular weight) (600) An aqueous solution containing 4% by mass was padded at a squeezing rate of 80%, dried, and then subjected to low temperature plasma treatment under low temperature plasma treatment condition 1 to obtain a woven fabric of Comparative Example 5.

Comparative Example 6 Further, as Comparative Example 6, the same scouring dough as in Example 1 was used.

[0023]

[Table 1]

As is clear from Table 1, the woven fabric of Example 1 has excellent antifouling properties and antistatic properties and excellent washing durability, and Comparative Examples 1 to 5 have poor washing durability. It was I know that there is.

[0025]

Industrial Applicability According to the present invention, it is possible to provide a polyester fiber-containing cloth having excellent wash durability and antifouling properties and an antistatic function.

Claims (2)

[Claims] 1. A polyester fiber and a hydrophilic compound are N
-A modified polyester fiber-containing fabric which is fixed via methylol acrylamide. 2. A method of impregnating a polyester fiber with an N-methylolacrylamide-containing aqueous solution and drying it, then performing low-temperature plasma treatment of a non-polymerizable gas, further impregnating it with a hydrophilic compound-containing aqueous solution, and performing drying and heat treatment. A method for producing a modified polyester fiber-containing cloth according to claim 1.