What is the process of mercerizing process? Why mercerizing process?
What is the process of mercerization process? Why mercerizing process?
Mercerization:
A process in which cotton products (yarns, fabrics) are treated with concentrated caustic soda solution under tension, and then washed away under tension.
Alkali shrinkage:
The process of cotton products being treated with concentrated caustic soda solution in a relaxed state to shrink the yarn or fabric at will, and then washing away the caustic soda, is also called tension-free mercerization.
Mercerization:
A process in which cotton products (yarns, fabrics) are treated with concentrated caustic soda solution under tension, and then washed away under tension.
Alkali shrinkage:
The process of cotton products being treated with concentrated caustic soda solution in a relaxed state to shrink the yarn or fabric at will, and then washing away the caustic soda, is also called tension-free mercerization.
Mercerizing process:
Classification by process:
1. Bleach first and then silk:
The mercerizing effect is good and the waste alkali is cleaner, but the whiteness is poor and it is easy to stain, so it is suitable for Colored fabrics, especially heavy fabrics.
2. Silk first and then bleach:
The whiteness is good, but the gloss is poor. The fabric is easily damaged during bleaching. It is suitable for bleached cloth and printed cloth.
3. Mercerization after dyeing:
Suitable for varieties that are easy to scratch or difficult to level dye (after mercerization, the fabric feels harder and dyes faster) in order to improve the surface effect and dye fastness of the fabric when dyeing dark colors. For certain varieties with high gloss requirements, post-dye mercerization can also be used. (PS: Post-mercerization is selective for dyes)
4. Semi-mercerization before dyeing and conventional mercerization after dyeing:
In order to improve the adsorption and chemical reactivity of the dye.
Why mercerization
1. Gloss and brightness are improved after mercerization;
2. Adsorption capacity, chemical reaction The ability is enhanced, and the dye content is increased;
3. The shrinkage, dimensional stability, and fabric flatness are improved;
4. The mechanical properties of clothing such as strength and extensibility are changed.
Keywords:
Mercerizing process Mercerizing process flow
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