Advantages of slitter in cotton knitwear

In the dyeing and finishing process of cotton and its blended knitted fabric, mercerizing process is a very important link. How to choose the appropriate mercerizing method directly affects the product quality and the consumption of dyestuffs and chemicals, and also plays an important role in improving the wearability of products and reducing the cost.
Why should cotton and its blended knitted fabrics be mercerized?
The development, quality improvement and grade upgrading of some cotton and its blended knitted fabrics need mercerizing treatment and reasonable selection of mercerizing methods. Slitting machine
For example, there are obvious differences between mercerized and non mercerized knitted outerwear fabrics such as T-shirts, button up shirts, jackets and skirts made of cotton and their blends. From the appearance, the mercerized products present a texture similar to cotton but not cotton, like silk and non silk. The hand feel is soft and comfortable, the color is full and the luster is attractive. It shows a kind of unique beauty and has a unique style. The mercerized products of the slitting machine give people a general feeling that the products are of high grade. If we use mercerized products as fabric, plus new styles and fashionable colors, the price of a T-shirt can reach hundreds of yuan in China and hundreds of US dollars in foreign high-end markets. This is several times higher than the average product.
The dyeing or printing of cotton knitwear mostly adopts reactive process. After mercerizing, the physical and chemical changes of cotton fiber occur, which can greatly increase the color yield of reactive dyes and save 20-30% of dyestuffs and chemicals. Mercerization must be used in the production of medium dark color products, especially black, dark blue, dark green, coffee, etc., to produce high-quality products.
After mercerization, the moisture absorption and elasticity of knitted fabric increase obviously, so it is the first choice for sportswear such as vest and sportswear.
With the improvement of people''s living standards, there are new multi-layer and diverse requirements for the internal quality of knitted underwear. To meet these needs, a variety of finishing is an important means, and mercerizing is one of its feasible means.
One is that mercerizing of cotton knitted fabric is carried out under the condition of uncooked and bleached green body. It takes a long time for high concentration caustic soda to permeate the green body.
When rolling, it is not conducive to the alkali penetration of the cylinder, which is not conducive to the formation of alkali marks.
Third, air interference is not conducive to the penetration of alkali. The slitting woven fabric is blown into a cylinder before entering each rolling point, and then enters into the rolling point, which can prevent the crease and crease, but it is not conducive to the penetration of alkali, so it needs a process of air exhaust. The above three aspects which are unfavorable to alkali penetration can be compensated and adjusted in loose pile to achieve high quality mercerizing.

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