CN102995444B - A kind of processing method of cotton knitted fabric imitating silk style - Google Patents

Abstract

The invention discloses a method for processing cotton knitted fabrics to achieve the silk-like effect. The method comprises the following steps of: S1. scouring and bleaching the cotton knitted fabrics; S2. carrying out mercerizing treatment on the cotton knitted fabrics, wherein the concentration of caustic soda in a mercerizing solution is 240-300g/L; S3. carrying out silk-like pretreatment on the mercerized cotton knitted fabrics by a silk-like pretreatment agent HD30, wherein the treatment temperature is within 60-68 DEG C, the time is 40-60 minutes, the pH value is 5.5-6.0, and the silk-like pretreatment agent HD30 comprises 70% of high-enriched modifying enzyme, 28% of consolidated dispersing agent and 2% of fiber strength protective agent; S4. placing the dyed cotton knitted fabrics into a solution containing a silk-like afterfinish auxiliary WS 22 for padding finishing, wherein the pick-up rate is 5%, the setting temperature is 150-155 DEG C, the machine speed is 20-30m/min, and the silk-like afterfinish auxiliary WS 22 comprises 25% of high-enriched aldehyde-free resin, 5% of wet rubbing fastness booster, 2% of fiber strength protective agent, and 68% of amino silicon oil; and S5. setting the cotton knitted fabrics. The cotton knitted fabrics processed by the method provided by the invention has extremely obvious silk-like effect, also has excellent elasticity, and obvious anti-wrinkle, anti-wrinkle and non-ironing effects.

Description

A kind of processing method of cotton knitted fabric imitating silk style

technical field

The invention belongs to the field of textile science and technology, and relates to a method for processing cotton knitted fabrics with simulated silk style.

Background technique

Real silk has the inherent qualities of soft and elegant, smooth, plump, elegant and soft luster, strong drape, and comfortable wearing, but it also has poor color fastness, low output, expensive price, complex processing technology, high shrinkage rate, and poor elasticity. It is easy to wrinkle, poor light fastness, easy to yellow, easy to scratch, harsh washing conditions and other shortcomings. Cotton fiber has extensive resources, low price, good hygroscopicity, soft hand feeling, convenient processing technology, soft luster, and natural beauty. Its fabric structure is diverse, comfortable to wear, bright and rich in color, and its color fastness is higher than real Advantages of silk fabrics, etc. However, compared with real silk, it lacks the performance of smoothness, elegance and strong drape. There are many finishing techniques for cotton knitted fabrics, such as mercerizing finishing, softening finishing, anti-wrinkle finishing, anti-pilling finishing, etc. The purpose is to improve a certain wearing performance of knitted fabrics through certain processing. There is a lack of a systematic process or method to greatly improve the style and wearability of cotton knitted fabrics.

In order to improve the quality of cotton fabric products and clothing and increase the market competitiveness of enterprises, various domestic and foreign enterprises have cooperated with colleges and universities and scientific research institutes to conduct extensive exploration and research on cotton fabric imitation silk. Some research results show that finishing The finished fabric is close to the style effect of real silk fabric to a certain extent, but its preconditions are relatively strict, the applicable area is narrow, and the imitation silk is only processed from the finishing means (working fluid formula, finishing process conditions, etc.), and the process is complicated. It does not conform to the energy-saving and emission-reduction guidelines advocated by the current state, lacks research on the impact on the color fastness and vividness of finished fabrics, and lacks research on further improving other properties of fabrics (such as elasticity and wrinkle resistance). Such as: Patent Publication No. CN101195951A Cotton fiber and blended fabric imitation silk finishing processing method, its limited condition requirement is more harsh: require processing object to be high-count yarn fabric, and imitation silk method mainly is through repeatedly padding and baking by after-finishing means Baking, the process is lengthy, consumes a lot of energy, and there is a lack of research on the effects of finishing on color fastness, color change, and color brightness.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art, and provide a method for processing cotton knitted fabrics with a simple process and good effect of imitating silk.

In order to achieve the purpose of the above invention, the present invention adopts the following technical solution: a method for processing cotton knitted fabrics with simulated silk style, comprising the following steps:

S1, boiled and bleached cotton knitted fabric;

S2, carry out mercerizing treatment to cotton knitted fabric, wherein the caustic soda concentration of mercerizing solution is 240-

300 g/l;

S3, using the simulated silk pretreatment agent HD30 solution to imitate the cotton knitted fabric after mercerizing

Pre-treatment of real silk, the treatment temperature is between 60-68 ℃, the time is 40-60 minutes, the pre-treatment of imitation silk

Reasoning agent HD30 solution pH value is 5.5-6.0; Described artificial silk pretreatment agent HD30 solution presses

The weight ratio is composed of the following components: modified enzyme 69-71% at a concentration of 45±1%, dispersant 27-

29%, fiber strength protective agent 2-2.5%;

S4, put the cotton knitted fabric into the WS22 solution of the finishing auxiliary agent after imitation silk for padding and finishing

The WS22 solution is composed of the following components by weight ratio: 48 ± 1 % formaldehyde-free resin 24-26%, wet rubbing fastness improving agent 5-5.5%, fiber strength protection agent 2-2.5%, amino silicone oil 67-69%;

S5, stereotyped cotton knitted fabric.

The luster of the cotton knitted fabric processed by the above-mentioned process method is significantly improved, reaching the brightness and luster of silk fabric; the silky feeling is obvious, and the processed cotton knitted fabric has the silky sound that silk products have; softness, drapability, The elegant feeling and the smoothness of human skin touch are outstanding; it has fully reached the style characteristics of silk fabrics; at the same time, some properties are better than silk fabrics, such as wrinkle resistance, color brightness and color fastness.

The preferred solution of the present invention: first dye the mercerized cotton yarn or embryo yarn, and then weave it into a knitted fabric.

The preferred solution of the present invention: after step S3, the knitted fabric is dyed, and then step S4 is performed.

The preferred solution of the present invention: the dyeing step uses reactive dyes to make the finished fabric have strong color fastness.

A preferred solution of the present invention: the cotton knitted fabric in step S1 is a knitted fabric woven from mercerized cotton yarn or embryo yarn.

The preferred solution of the present invention: in the step S3, the pretreatment agent HD30 of artificial silk accounts for 2%-5% of the cotton knitted fabric.

The preferred solution of the present invention: in step S4, the concentration of the silk finishing auxiliary agent WS22 is 140-160 g/L.

The preferred solution of the present invention: after step S5, use a shrinking machine or a calender to further process the shaped cotton knitted fabric.

The beneficial effect of the present invention is that the application range is wide, and the existing cotton knitted fabrics can be processed by this method to achieve the style of imitating silk. There is no special equipment requirement, and the existing domestic textile and printing and dyeing equipment can be properly combined to meet the processing requirements, and the processed cotton knitted fabric has an extremely remarkable effect of imitating silk, and at the same time endows the fabric with excellent elasticity. Anti-wrinkle, anti-shrink, non-ironing effect is obvious.

Description of drawings

Fig. 1 is a process flow diagram of embodiment 1 of the present invention;

Fig. 2 is process flow diagram of embodiment 2 of the present invention;

Detailed ways

Example 1

The general dyeing and finishing process of cotton knitted fabrics is relatively long, and the processing process that has a greater impact on the imitation silk style with anti-wrinkle, anti-shrinkage, and non-ironing effects is not a certain process (such as imitation silk finishing), nor is it all Dyeing and finishing process, but the impact of several key processes. The invention puts forward requirements for the arrangement sequence of key processes, process parameters, etc., so as to ensure the completion of the simulated silk style. Specific steps are as follows:

1) Choose knitted fabrics woven from mercerized cotton yarn or embryo yarn;

2) Scouring and bleaching of cotton knitted fabrics;

3) Perform mercerizing treatment on knitted fabrics; the caustic soda concentration of the mercerizing treatment solution is required to be between 240-300 g/L (about 26 Baume);

4) Use the imitation silk pretreatment agent HD30 solution to carry out imitation silk pretreatment on the knitted fabric. The treatment temperature is between 60°C and 68°C, and the time is 40 to 60 minutes. The pH value of the imitation silk pretreatment agent HD30 solution is 5.5 to 5.5 6.0, the dosage is 2%-5% relative to the weight of the fabric;

The artificial silk pretreatment agent HD30 solution is composed of the following components by weight ratio: 69-71% modified enzyme with a concentration of 45±1%, 27-29% dispersant, and 2-2.5% fiber strength protection agent;

5) When dyeing, reactive dyes are used to make the fabric have strong color fastness in the finished product;

6) Select WS22 solution of imitation silk post-finishing auxiliary agent to pad and finish the fabric. The concentration of the finishing solution is 140-160 g/L; 20-30m/min;

Silk finishing auxiliary agent WS22 solution is composed of the following components by weight ratio: 48±1% formaldehyde-free resin 24-26%, wet rubbing fastness improving agent 5-5.5%, fiber strength protection agent 2-2.5%, Amino silicone oil 67-69%;

7) After finalizing the finished product, choose a pre-shrinking machine or a calender for processing.

Example 2

The difference between embodiment 2 and embodiment 1 is that the mercerized cotton yarn or embryo yarn is dyed first, then knitted into knitwear, and then other steps are performed.

Claims (8)

1. A processing method of cotton knitted fabric simulation silk style, comprising the following steps: S1, boiled and bleached cotton knitted fabric; S2, carry out mercerizing treatment to cotton knitted fabric, wherein the caustic soda concentration of mercerizing solution is 240- 300 g/l; S3, using the simulated silk pretreatment agent HD30 solution to imitate the cotton knitted fabric after mercerizing Silk pretreatment, the treatment temperature is between 60-68°C, the time is 40-60 minutes, and the pH value of the artificial silk pretreatment agent HD30 solution is 5.5-6.0; the artificial silk pretreatment agent HD30 solution is composed of the following components by weight: Composition: Modified enzyme 69-71% with a concentration of 45±1%, dispersant 27-29%, fiber strength protectant 2-2.5%; S4, put the cotton knitted fabric into the WS22 solution of imitation silk post-finishing auxiliary agent for padding and finishing, the excess rate is 70-85%, the setting temperature is between 150-155°C, and the machine speed is 20-30 m/min; Silk finishing auxiliary agent WS22 solution is composed of the following components by weight ratio: 48±1% formaldehyde-free resin 24-26%, wet rubbing fastness improving agent 5-5.5%, fiber strength protection agent 2-2.5%, Amino silicone oil 67-69%; S5, stereotyped cotton knitted fabric. 2. the processing method of cotton knitted fabric imitating silk style as claimed in claim 1, is characterized in that, cotton yarn or embryo yarn dyeing after mercerizing are earlier woven into knitted fabric. 3. The method for processing cotton knitted fabrics with simulated silk style as claimed in claim 1, characterized in that, after step S3, the knitted fabrics are dyed, and then step S4 is performed. 4. The processing method of cotton knitted fabric imitating silk style according to claim 2, characterized in that reactive dyes are used in the dyeing step. 5 . The method for processing cotton knitted fabrics simulating silk style according to claim 1 , characterized in that, in step S1 , the cotton knitted fabrics are knitted fabrics woven from mercerized cotton yarns or embryo yarns. 6 . 6. The method for processing cotton knitted fabrics with simulated silk style as claimed in claim 1, characterized in that, in step S3, the proportion of the simulated silk pretreatment agent HD30 solution in the cotton knitted fabrics is 2%-5%. 7. The method for processing cotton knitted fabrics with imitation silk style as claimed in claim 1, characterized in that, in step S4, the concentration of the auxiliary agent WS22 for imitation silk finishing is 140-160 g/L. 8. The method for processing cotton knitted fabrics with imitation silk style as claimed in claim 1, characterized in that, after step S5, the finalized cotton knitted fabrics are further treated with a shrinking machine or a calender.