(1) Similarities 1. Dyeing with dye, The color fixation principle is similar. 2. The physical and chemical properties of the chemical additives used are similar. 3. The same type of fiber can...
(1) Similarities
1. Dyeing with dye, The color fixation principle is similar.
2. The physical and chemical properties of the chemical additives used are similar.
3. The same type of fiber can have the same dye fastness if dyed and printed with the same dye.
(2) Differences
1. No or added dyeing solution A small amount of thickening paste, and more thickening paste for printing paste.
2. Dyeing solution, the dye is easy to dissolve , without adding co-solvent. For printing paste, add more co-solvent.
3. When dyeing, the dye penetrates and diffuses fully. When printing, the dye is not easy to diffuse and penetrate, and must be steamed or baked
4. Dyeing and printing may have special requirements for the same type of dyes
5. Dyeing rarely uses two different types of dyes to match colors. Printing often uses different types of dyes
6. Printed cloth has particularly strict requirements on the weft and skew of semi-finished products.
7. Printing covers defects in gray fabrics Better than dyeing.
8. Dyeing and printing semi-finished products The pre-processing requirements are different. (Such as whiteness, hair effect)
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