KR930008699B1 - Manufacturing method for textile softening and silk touch - Google Patents

Abstract

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Description

Flexible and silk touch processing method of cotton, hemp knit fabric

1 is a process diagram of the present invention.

2 is a schematic diagram of a silicon processing process of the present invention.

* Explanation of symbols for main parts of the drawings

1: Immersion tank 2: Pickup roller

3: brush roller 4: expansion device

5: pintail 6: heating device

7: Floating device 8: Calender (competitive)

The present invention relates to a flexible and silk touch processing method of cotton or hemp or cotton hemp knit fabric.

The present invention also provides a special silicone composition for the soft and silk touch processing of cotton, man-made fabrics.

The present invention provides a new method of soft and silk touch processing of cotton, man-made fabrics, characterized in that it comprises a special silicon treatment process and an enzyme treatment process.

In recent years, the demand for thin knit products has increased rapidly due to the improvement of costume culture, especially the expansion of sports culture. Especially, the soft, silky touch and elastic knit products are mostly made in the textile developed countries such as Italy, France and Japan. It is imported.

The conventional processing methods of the knitted fabric of cotton or hemp fiber in advanced countries are as follows:

Conventional foil knit fabric knitted with a circular knitting machine has a lot of hair on the back and the surface, so as to remove the hair as much as the surface must be burned with a gas fire. This is called gas moss (GAS SINGEING). Until now, the general method of processing has been the gas moss process.

After this process, it is treated with sodium hydroxide (NaOH) solution in mercerizing process and then moved to refining and bleaching process to chlorine bleach using sodium chlorite (NaClO ₂ ).

Next, proceed to reactive dyeing immediately (without enzyme treatment), go through dehydration and drying, treat it with a conventional silicone softener, and then harden to complete the final dyeing process. However, this method is expensive and lacks sufficient elasticity of the fibers. In addition, a typical processing method known to be indirectly related to the present invention includes a Chintz finish method used in the United States and Japan. Chinze processing is to increase the flexibility by treating the denim (denim), a thick material such as jeans. However, this method has not been applied to thin knit fabrics.

In addition, such a chin processing has a limitation that, firstly, the object must be a post-fabric and a deeply dyed fabric, and thus cannot be used for other fabrics, especially knits.

Applying such chins to the knitted fabrics of the paper cloth forcibly may cause discoloration, deterioration in dyeing and decrease in strength, and a slight increase in flexibility, but may be attached to the back side or lack drapeness, and after washing Recovering is reduced and durability deteriorates upon two to three washes.

Thus, it is true that until now there has been no satisfactory processing method for knitted products.

Another prior art discloses a softening agent and a method for treating acrylic fiber described in Korean Patent Publication No. 88-2280.

The method described in the above publication is a method of processing an acrylic fiber raw material using a specific silicone resin, an emulsifier and the like to make a fiber having a soft touch such as fur of an animal. However, such a softening agent or treatment method is basically different from the softening agent of cotton or hemp, and is not applicable to cotton and mantle fabrics.

The present invention solves the above-mentioned deficiencies of the prior art and at the same time provides a new processing method for a cotton, man-made fabric that is flexible and has a touch of silk.

The present invention is a softening and silk fabric of a knitted fabric consisting of a mercurizing process, a bleaching process, an enzyme treatment process, any dyeing process, a silicon treatment process and a polishing process, characterized by a combination of an enzyme treatment process and a silicon treatment process. It relates to a touch treatment processing method.

The present invention also provides a special silicone treatment agent composition.

The method of the present invention will be described step by step according to FIG.

1 shows the process of the present invention step by step as a process diagram.

The fabric used in the present invention is a knit fabric. Knits are either cotton or hemp fibers or thin foil (one sided) to thick (duplex) knits made from cotton and hemp mixed fibers.

Mercerizing process: Mercerizing process is the process of crystallizing knitted fabric by treating with sodium hydroxide solution.

The concentration of sodium hydroxide used in the present invention is 20 to 35 Beffl, and the temperature is usually 16-20 ° C. The treatment time is 10 to 30 minutes.

Outside the range of each of the above conditions, the effect of the present process is reduced or side effects are generated.

In this process, 2% of a penetrant may be added if necessary.

Bleaching process: Mercerized knit fabric is then bleached. Bleaching is used sodium chlorite, the concentration of sodium chlorite is 2 to 6%, the pH at the time of bleaching is adjusted to 3 to 5 with oxalic acid or glacial acetic acid, the bleaching time is suitable for 50 minutes to 60 minutes.

Chlorine remaining in bleaching is treated with hypo (sodium thiosulfate) to complete the bleaching process.

Enzyme Treatment Process: Enzyme treatment process is one of the important core process of the present invention.

The bleached knit fabric is enzymatically treated in a jet enzymatic bath.

The enzyme used is cellulase, and the amount used is 0.5 to 2.0% by weight based on the knit fabric. The treatment conditions were 60 minutes at 50 ° C., and the liquid ratio was 5 to 15.

A typical enzyme treatment process is to put the fabric into the enzyme processor at room temperature, and then add cellulase, adjust the pH to 5.0 by adding glacial acetic acid or oxalic acid, and then raise the temperature to 50 ° C. over 20 minutes, process 60 minutes at 50 ° C., and cool. Just do it.

Enzymatic treatment results in a weight loss of 4 to 6%. If the weight loss is less than 4%, the desired flexibility is insufficient. Conversely, if the weight loss is 6% or more, the strength of the knit fabric is reduced.

In order to prevent the action of the enzyme, dyeing is carried out immediately, or sodium carbonate is added to control the alkali, and then the process proceeds to the next step.

Dyeing process: The dyeing process is not an essential process of the present invention but is usually carried out.

As the dye, a vinylsulfone dye is used, and a dyeing method of a normal reactive dye is performed. The dyeing method of the present invention is characterized by no dye loss after dyeing after enzyme treatment.

The dyed knit fabric is dehydrated and dried in conventional manner.

Silicon treatment process: As a silicone treatment, the fabric is endowed with flexibility and elasticity. As the silicone used, special silicone prepared according to the present invention is used.

The special silicone of the present invention is 100 parts by weight of amino-modified silicone of the following general formula (I), 5 to 20 parts by weight of carboxy-modified silicone of the following general formula (II), preferably 10 to 15 parts by weight and the following general formula (III) ) Is a composition composed of 5 to 30 parts by weight, preferably 10 to 2 parts by weight of the polyurethane resin.

Wherein R is CH ₃ , or OCH ₃ , n and m are each 1 to 4, x and y are each 1 to 5,

Wherein R is CH ₂ COOH, x and y are each from 1 to 5,

Wherein R 'is each an ethylene, propylene, butylene or phenylene group, n is an integer of 1 to 10 or less, which may be a liquid compound depending on the type of R and R', and X is a terminal isocyanate group Or masked isocyanate groups.

Silicone treatment absorbs 0.2 to 3% of the special silicone into the fabric. The treatment method is carried out by drying a special silicone as an aqueous solution and absorbing it through a dryer after drying, at a drying temperature of 70 to 100 ° C, and a curing temperature of 100 to 160 ° C.

The silicon processing process is explained with reference to FIG. Pass the knitted fabric through the silicon immersion tank (1) containing the special silicone emulsion and adjust the tension in the pickup roller (2), then pass through the brush roller (3), pass through the expansion device (4), and then pintail In combination with (5), it enters into the heating apparatus 6, heats and hardens, separates from the floating apparatus 7, and passes through a calender (composite) 8.

Polishing Process: The polishing process of the present invention is carried out with a calendar. This process, commonly referred to as COMPIT, is homogenized with the gloss of the foil.

The effect of the present invention is as follows.

(A) The surface of the cotton and mantle that is possible by the enzyme treatment and the silicone treatment according to the present invention, as well as the back surface, has a draped silky texture.

(B) By the method of the present invention, the quality of the product is improved, so that the quality of life and income can be improved and the sport can be produced and supplied with high-quality knitted products that can cope with the increase of the class. It is also an alternative to expensive knit goods imported from developed countries.

(C) According to the present invention, by applying it to men and women's foil apparel, elasticity characteristics: there is a change in temperament, such as made of elastic yarn, flexibility: it can be smooth, softness: it is a comprehensive feeling including a soft feeling and slippery feeling A feeling is obtained and can be used for thin knits for women.

(D) The product according to the present invention eliminates stinging when worn, since fine hairs have been removed from the front and back surfaces.

(E) The product according to the present invention improves washing resistance, that is, durability with special silicone, so that the ordinary product is reduced in durability when washed two or three times, but is improved to ten or more times.

(F) When the method of the present invention is used, the back surface and the surface do not adhere at the same time even if the gas copying step is omitted. Therefore, it is possible to create demand as a material for women's dresses made of knitwear which has been impossible until now.

(G) The knitted fabric treated by the method of the present invention does not need to be subjected to a separate antistatic treatment.

Example 1

200 kg of cotton knit fabric (60 males) of foil knitted with a circular knitting machine is passed for 18 to 20 minutes in a mercerizing machine maintained at a concentration of 28Beffl of sodium hydroxide solution and 18 ° C.

Subsequently, the resultant was washed in a washing bath, and then bleached in boiling water for 60 minutes in an aqueous solution of 1 kg of sodium chlorite and bleach bath maintained at pH 3.5 with oxalic acid, followed by dechlorination with hypo (sodium thiosulfate) and washing again to complete the bleaching process.

The bleached cotton and knitted fabrics are finished with cellulase (enzyme concentration of Denmark, manufactured by Novo 1.5%, temperature 50 ° C., pH: 5.0, treatment time 60 minutes, bath ratio 1: 8).

After the enzyme treatment, dyeing with vinyl sulfone type dye, dehydration and drying process in the usual manner, and then enters the silicon treatment process. The dyed cotton knit fabric is immersed in an emulsion solution made of 2 kg amino modified silicone, 200 g of carboxy modified silicone and 200 g of urethane resin in an emulsion solution made of sodium octyl phosphate ester salt, heated and cured at 100 ° C. for 2 minutes and at 160 ° C. for 3 minutes. Make a product by hanging on a glossy roll.

The test results obtained were as follows. The test method is Korea Yarn Textile Testing and Inspection Corporation.

Example 2

The method was carried out in the same manner as in Example 1, using a thick cotton knit (30 male both sides).

the results are as follow.

Comparative Example 1

A product which was carried out by the method of Example 1 but did not undergo enzyme treatment was used.

The test results are as follows.

Claims (5)

A method of softening a knit fabric, the method of softening and silk touch processing of a knitted fabric, comprising an enzyme treatment step and a silicon treatment step. A softening and silk touch processing method of cotton, man-made fabrics, comprising mercerizing process, bleaching process, enzyme treatment process, arbitrary dyeing process, silicon treatment process and gloss process. The method of claim 2, wherein the special silicone used in the silicon treatment step is 100 parts by weight of amino-modified silicone of formula (I), 5 to 20 parts by weight of carboxy-modified silicone of formula (II) and the following formula (III) Process method, characterized in that the composition consisting of 5 to 30 parts by weight of the polyurethane resin. Wherein R is CH ₃ , or OCH ₃ , n is m 1 to 4, x and y are 1 to 5, respectively Wherein R is CH ₂ COOH, x and y are each from 1 to 5, Wherein R and R 'are each an ethylene, propylene, butylene or phenylene group, n is an integer of 1 to 10 or less which may be a liquid compound depending on the type of R and R', X is a terminal isocyanate group, Or masked isocyanate groups. 3. The processing method according to claim 2, wherein the enzymatic treatment step uses cellulase 0.5 to 2.0% by weight based on the original fabric, 30 to 60 minutes at a temperature of 40 to 50 ° C, and a bath ratio of 5 to 15. 100 parts by weight of amino-modified silicone of formula (I), 5 to 20 parts by weight of carboxy-modified silicone of formula (II), and 5 to 30 parts by weight of polyurethane resin of formula (III) Knit fabric soft and silk touch composition. Wherein R is CH ₃ , or OCH ₃ , n and m are each 1 to 4, x and y are each 1 to 5, Wherein R is CH ₂ COOH, x and y are each from 1 to 5, Wherein R and R 'are each an ethylene, propylene, butylene or phenylene group, n is an integer of 1 to 10 or less which may be a liquid compound depending on the type of R and R', X is a terminal isocyanate group, Or masked isocyanate groups.