A kind of dark non-ironing and washable pure cotton knitted fabric and its production method and application

Abstract

The invention provides a dark color non-ironing and washable pure cotton knitted fabric and its production method and application. The method comprises making the yarn successively undergo weaving, scouring, enzyme washing, dyeing, liquid ammonia finishing, and resin setting to obtain knitted fabrics. Fabrics; liquid ammonia finishing is to make knitted fabrics dyed and dried in open width sequentially through the drying unit, brushing unit, ammonia soaking unit, drying cylinder ammonia removal unit, and steaming unit, and then drop the cloth; the liquid ammonia finishing process wears The cloth route is that the knitted fabric enters the cloth drying unit through the cloth guide roller, and then passes through the edge roller, and the cloth guide roller enters the felt cylinder of the drying cylinder of the cloth drying unit; after exiting the cylinder, it enters the brush unit through the cloth guide roller; The rollers and cloth guide rollers enter the cloth guide rollers of the liquid ammonia dipping tank of the ammonia soaking unit, and then pass through the first padding roller and the second padding roller; the knitted fabric enters the drying cylinder sequentially through the corresponding edge rollers and cloth guide rollers In several drying cylinders set continuously in the ammonia removal unit; the knitted fabric enters the blanket cylinder of the steam box of the steaming unit through the edge roller and cloth guide roller, and then falls off.

Description

technical field [0001] The invention relates to a dark-colored non-iron and washable pure cotton knitted fabric, a preparation method and application thereof, and belongs to the technical field of knitting dyeing and finishing. Background technique [0002] For pure cotton fabrics, in order to obtain darker colors, especially black and dark blue, it is generally obtained by increasing the amount of reactive dyes, but when the amount of dyes reaches a certain level, the density of reactive dyes on the surface of the fabric increases. It is prone to fading and fading, which makes the difference between the dark cloth after wearing and the original dark cloth obvious. In addition, due to the action of mechanical force during taking and washing, the seams and protruding bones of pure cotton dark clothes are greatly increased, resulting in increased cloth hairiness and local whitening of protruding bones, showing a relatively high appearance. The obvious whitening damage and the...

AI Technical Summary

Problems solved by technology

[0002] For pure cotton fabrics, if you want to get a darker color, especially black and dark blue, it is generally obtained by increasing the amount of reactive dyes, but after the amount of dyes reaches a certain level, the density of reactive dyes on the surface of the fabric increases. Easy to fade and fade, which makes the dark cloth after wearing obviously different from the original dark cloth

In addition, due to the mechanical force during wearing and washing, the seams and prominent bones of pure cotton dark clothes are greatly increased, resulting in increased hairiness on the cloth surface and local whitening of the prominent bones, showing a more delicate appearance. Obvious whitening damage, obvious washing old feeling, seriously affect the overall appearance of the clothes, and reduce the grade of black cotton fabrics

[0003] In view of the above problems, resin finishing methods are usually adopted in the industry, or resin finishing combined with enzyme washing or singeing; resin finishing can improve the color washability and wrinkle resistance of knitted fabrics by cross-linking with cellulose. It is improved for medium and light colors, but for dark colors, it is necessary to use a high amount of resin to improve the whitening phenomenon after washing, but the increase in the amount of resin will cause a serious decline in fabric strength. Therefore, it is difficult to balance the strength and strength of black fabrics. color washability

[0004] In addition, Chinese patent CN101744370A discloses a method for manufacturing a black shirt made of cotton, wherein the method uses a combination of sulfur dyes and reactive dyes to obtain a washable black color, but the disadvantage is that the black color is dim. The color change after pre-washing is large, the cost is high, and in the long-term wearing process, sulfur dyes are brittle and cause serious loss of fabric strength

[0005] In summary, there is currently no method that can effectively improve the washability of dark knitted fabrics. Therefore, it has become an urgent need in this field to provide a new type of dark non-ironing and washable pure cotton knitted fabric and its production method and application. Technical issues resolved

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