JPH0967768A - Processing of cellulose-based fiber-containing fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impart electrostatic property, water absorbing property, antifouling property and shape stability to a fabric by applying a specific resin liquid to a cellulosic fiber-containing fabric, subjecting the fabric to low-temperature plasma treatment, sewing the treated fabric and further subjecting the sewn product to vapor phase treatment with formaldehyde. SOLUTION: A cellulose-based fiber-containing fabric such as plain weave fabric comprising a polyester-cotton blend is subjected to scorching; bleaching and marcelizaton treatment, and then a treating agent in which a polyethylene glycol-based resin is blended with a water-soluble polyester resin is applied to the fabric by padding method and the fabric is heated and dried and subjected to low-temperature plasma treatment in nonpolymerizable gas such as air. The treated fabric is sewn to afford a product such as dress shirt and the product is subjected to vapor phase treatment with formaldehyde.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing method using a cellulosic fiber-containing cloth for imparting anti-static property, water absorbency, antifouling property, and shape-retaining property with wash durability to the sewn product. is there.

[0002]

2. Description of the Related Art In general, synthetic fibers are superior in strength, dimensional stability, and wrinkle resistance to cellulosic fibers, but are inferior in water absorption, antistatic property, and antifouling property. There is.
Cellulose fibers are excellent in water absorption, antistatic property and antifouling property, but inferior in strength, dimensional stability and wrinkle resistance. Most of the form-stabilizing treatments on the market today are mixed products of cellulosic fibers and synthetic fibers, and in terms of performance, sufficient performance is obtained in terms of strength, dimensional stability, and wrinkle resistance. Durable water absorption, antistatic property,
The antifouling performance was inferior and no satisfactory performance was obtained.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation as described above, and uses a cellulosic fiber-containing fabric for a sewn product having water-absorption property and antistatic property with washing durability. The purpose is to obtain a processing method that imparts antifouling properties and shape retention properties.

[0004]

The present invention attains the above object and has the following constitution. That is, according to the present invention, a treatment liquid containing a polyethylene glycol resin and a water-soluble polyester resin is applied to a cellulosic fiber-containing cloth, dried, and then treated with a low-temperature plasma of a non-polymerizable gas,
Next, a gist is a method of processing a cellulosic fiber-containing cloth, which is characterized by performing a vapor phase processing with formaldehyde after sewing a sewn product.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is described in detail below.
The term “cellulosic fiber-containing cloth” as used in the present invention means a woven fabric, a knitted fabric, a non-woven fabric, etc. made of one or a mixture of natural cellulose fibers such as cotton and hemp, and regenerated cellulose fibers such as rayon and polynosic. Synthetic fibers such as fibers, nylon fibers, polyacrylonitrile fibers, and vinylon fibers may be mixed in an amount of less than 50%.

In the method of the present invention, first, a treatment liquid containing a polyethylene glycol resin and a water-soluble polyester resin is applied to the above-mentioned cloth and dried.

The polyethylene glycol resin referred to herein is an ethylene glycol unit,-(CH ₂ CH ₂
O) _n − in the molecular chain.
Can be represented by the general formulas [A], [B] and [C].

[0008]

Embedded image

Specific examples include polyethylene glycol, polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, and alkylphenoxy polyethylene glycol acrylate. The water-soluble polyester resin used in the present invention refers to a copolymer of terephthalic acid or sulfoisophthalic acid and polyalkylene glycol. Specific commercially available products include SR-1000 (product of Takamatsu Yushi Co., Ltd.), Permarin MR-100 (product of Sanyo Chemical Industry Co., Ltd.), Nicepol PR-86 (product of Nika Chemical Industry Co., Ltd.) and the like. You can

The amount of resin adhered to the cellulosic fiber-containing cloth is 0.5 in the case of polyethylene glycol resin.
.About.5.0% by weight is suitable, and in the case of a water-soluble polyester resin, 0.5.about.5.0% by weight is also suitable.

As the method of applying the treatment liquid containing the polyethylene glycol resin and the water-soluble polyester resin, the method used in the ordinary post-processing method of fibers can be applied as it is, and the target fiber cloth Depending on the form,
The treatment liquid is impregnated by an exhaustion method using a cheese dyeing machine, an overmeier, a jet dyeing machine, or a padding method using a padder. Generally, the padding method is the most advantageous in terms of work efficiency and cost.

After applying the treatment liquid, the temperature is 0.5 at 110 to 180 ° C.
Dry by heat treatment for ~ 2 minutes.

In the present invention, next, a low-temperature plasma treatment with a non-polymerizable gas is performed in order to cause the polyethylene glycol resin and the water-soluble polyester resin to adhere to the cellulosic fiber-containing cloth.

In order to perform the low temperature plasma treatment, a known apparatus, for example, "Journal of Textile Machinery Society", Vol. 38, No. 4
The following apparatus described on page 188 of (1985) can be used. This device is equipped with a pair of electrodes for discharge in a vacuum container that can maintain low pressure, can introduce a specific gas at a predetermined flow rate, and evacuates the container with an attached vacuum pump.
It is a device that has a structure and performance capable of maintaining a constant pressure. When a voltage is applied to the electrodes in this device, a glow discharge occurs, and the introduced gas becomes a low-temperature plasma state. Most commonly, high frequency power of 13.56 MHz is applied according to the regulations of the Radio Law. The low temperature plasma treatment can be performed by passing the cloth to be treated at a desired speed in the low temperature plasma atmosphere formed between the electrodes.

Specifically, first, the cloth to be treated is housed in a vacuum container and exhausted by a vacuum pump to reduce the internal pressure.
Adjust from 0.01 to 1 Torr. Then, a predetermined gas is introduced to adjust the pressure to 0.1 to 5 Torr, preferably 0.5 to 2 Torr. As the non-polymerizable gas used at this time, various gases such as oxygen, nitrogen, argon, helium, ammonia and air can be used. Normally, oxygen and air are desirable. When high frequency power is applied to the electrodes in the container with a predetermined gas introduced and adjusted to 0.1 to 1.0 Torr, the introduced gas becomes a low temperature plasma state. High frequency power is 0.1 to 1.0
A suitable value is about W / cm ² (electrode unit area). The low-temperature plasma treatment can be performed by passing the cloth stored in advance in the low-temperature plasma atmosphere. Processing time is usually several seconds to 300 seconds, preferably 3 seconds.
0 to 180 seconds.

Appropriate sewn products such as dress shirts, polo shirts and pants are sewn using the fabric after the low temperature plasma treatment. Sewing may be performed by a usual method.

Next, the obtained sewn product is subjected to vapor phase processing with so-called formaldehyde gas, which adsorbs formaldehyde gas and heat-treats it to crosslink it.

First, the moisture content of the fiber is adjusted to be uniform. At this time, if the moisture content of the product is 1% or less, the formaldehyde gas used in the next step will not be sufficiently adsorbed on the product, and if it is 50% or more, the product may become brittle due to the acid catalyst. Be careful. In addition, formaldehyde gas will not be adsorbed uniformly if moisture is not evenly distributed in the product. Any means may be used to uniformly control the water content, but it is usually preferable to leave the sewn product in a constant temperature and constant humidity chamber for 24 hours or more.

After adjusting the moisture content, formaldehyde gas is adsorbed to the sewn product and heat-treated to crosslink it. However, in the gas phase processing with this formaldehyde, there is a closed reaction chamber in which the formaldehyde gas is introduced. A vapor phase processing apparatus having a blowing device for feeding in, a heating device for reaction, and a fixing device for a workpiece can be used, and the vapor phase processing device manufactured by ATP (American Textile Processing Co.) 5-117958) may be used.

The formaldehyde gas concentration in this vapor phase processing apparatus is preferably in the range of 1 to 20%, and if it is 1% or less, the crosslinking reaction will be insufficient and the effect will not be improved even if it is used in 20% or more. They tend to be uneconomical.

The catalyst used in the crosslinking reaction is preferably a catalyst solution or a liquefied catalyst which is vaporized and adsorbed on the fiber product. Regarding the type of catalyst, when vaporizing, a volatile acid with a low boiling point, such as hydrogen chloride, is desirable. Regarding the catalyst concentration, when treating with gas, it is 0.1-
The range of 3.0% is desirable. If the gas concentration is less than 0.1%, the crosslinking reaction will be insufficient, and even if it is used at more than 3.0%,
The effect tends not to improve any further.

After adsorbing the formaldehyde gas, the sewn product is subsequently heat treated to crosslink the formaldehyde. This heat treatment is performed at a temperature in the range of 100 to 180 ° C. for 0.5 to 10 minutes. The crosslinking reaction can be completed by carrying out. The present invention has the above configuration.

[0023]

[Function] When the polyethylene glycol resin and the water-soluble polyester resin are applied to the cellulose fiber-containing cloth and subjected to the low temperature plasma treatment of the non-polymerizable gas, the polyethylene glycol resin and the water-soluble resin applied to the cellulose fiber-containing cloth The polyester resin is plasma polymerized, and the fiber surface and resin surface are chemically modified and etched to provide water absorption, antistatic property, and antifouling property with washing durability. When fabrics in this state are sewn and subjected to vapor phase processing with formaldehyde in the form of sewn products,
Because the presence of cross-linking reaction between cellulose and polyethylene glycol resin and formalin increases the presence of long-chain cross-linking reaction in addition to normal short-chain cross-linking reaction, the moisture wrinkle resistance and strength retention are improved. ， The sewn product will have a balanced shape retention.

[0024]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples. The measurement and evaluation of the samples in the Examples was carried out after finishing processing and home washing (JIS L-0217, 103).
Method) The sample after 30 times was subjected to the following method. (1) Easy care property: AATCC-124 (2) Anti-shrinkage property: JIS L-1096 (3) Anti-wrinkle property: JIS L-1096

(4) Antifouling property (a) Stain removal property 0.2 ml of heavy fuel oil B was dropped on the sample and left for 20 hours, and the remaining state of the home-washed product was classified by a gray scale for contamination. 5 (good) to 1 (poor) (b) Anti-redeposition property B heavy oil 0.5 g / liter, nonionic surfactant 1 g /
A sample was put into a recontamination liquid for B heavy oil consisting of 1 liter, stirred at 90 ° C. for 5 hours in a bath ratio of 1:50, and then graded with a gray scale for contamination. 5 (good) to 1 (bad)

(5) Water absorption: JIS L-
1096 (dripping method) (6) Antistatic property: JIS L-1094 (B
Method)

Example 1 Plain woven fabric of 50% polyester / 50% cotton (warp 50
Count yarn, weft yarn 50 count single yarn; warp density 144 / inch, weft density 77 / inch) are subjected to scouring, bleaching and mercerizing treatment in the usual manner, and then immersed in a treatment liquid of the following formulation 1 and picked up. After padding at 60%, 110
It was dried at ° C.

Formulation 1 Permarin MR-100 4.0% (Water-soluble polyester resin, Sanyo Kasei Co., Ltd.) Polyethylene glycol 4.0% (Molecular weight 600, Kishida Kasei Co., Ltd.) PORON MF-5 3.0% ( Silicone texture modifier, Shin-Etsu Chemical Co., Ltd.) Leperon OPC 1.0% (Polyolefin texture modifier, Satoda Kako Co., Ltd.)

Next, low temperature plasma treatment was performed under the following low temperature plasma treatment condition 1. Low-temperature plasma treatment conditions 1 Gas type: Oxygen gas flow rate: 5 liters / minute Trueness: 1.0 Torr High frequency output: 0.5 W / cm ² Treatment time: 1 minute

Here, after sewn in the shape of a dress shirt using this cloth, the moisture content is adjusted to 8.0% by leaving it in an environment room at a temperature of 20 ° C. and 65% RH, and then, Using a gas-phase processing apparatus (see Japanese Patent Laid-Open No. 5-117958) having a pressure-sealed reaction chamber, a means for supplying formaldehyde gas by a nozzle, and a heating means for the chamber, gas-phase processing is performed under the following gas-phase processing condition 1. It was

Vapor phase processing conditions 1 Formaldehyde gas concentration: 7.0% Sulfurous acid gas concentration: 2.0% Ammonia gas concentration: 0.5%

For comparison with the present invention, a dress shirt for comparison (Comparative Example 1) was prepared in exactly the same manner as this Example except that the low temperature plasma treatment step and the vapor phase processing step were omitted in this Example 1. Obtained. For comparison with the present invention, a dress shirt for comparison (Comparative Example 2) was obtained in the same manner as in Example 1 except that only the vapor phase processing step was omitted in Example 1. Further, for comparison with the present invention, a dress shirt for comparison (Comparative Example 3) was obtained in the same manner as in this Example except that only the low temperature plasma treatment step was omitted in the present Example 1.

The performances of the present invention and comparative dress shirts were measured and evaluated, and the results are shown together in Table 1.

[0034]

[Table 1]

As is clear from Table 1, the dress shirt according to the method of the present invention has a water-absorbing property with washing durability, an antistatic property,
It can be seen that it has antifouling properties and shape retention.

Example 2 In the above Example 1, the fabric to be processed was a knitted fabric of 50% cotton / 50% nylon (smooth, 40-neck alignment, unit weight 22).
0 g / m ² ), the dress shirt is replaced with a polo shirt for sewing, and the method of the present invention, Comparative Example 4, Comparative Example 5, and Comparative Example 6 are respectively performed in the same manner as in Example 1.
Got a polo shirt.

The performances of the present invention and the polo shirt for comparison were measured and evaluated, and the results are shown in Table 2 together.

[0038]

[Table 2]

As is clear from Table 2, the polo shirt produced by the method of the present invention has water absorption, antistatic property, antifouling property, and shape retention property which are durable to washing.

[0040]

According to the method of the present invention, a sewn product of a cellulosic fiber-containing cloth has a water-absorbing property, an antistatic property, and a wash-durability which are durable to washing.
Antifouling property and morphological stability can be imparted.

Claims (1)

[Claims] 1. A treatment liquid containing a polyethylene glycol-based resin and a water-soluble polyester resin is applied to a cellulosic fiber-containing cloth, dried, and then treated with a low-temperature plasma of a non-polymerizable gas, and then a sewn product is sewn, A method for processing a cellulosic fiber-containing cloth, which comprises subjecting a vapor phase processing to formaldehyde.