Science, asked by alifsheikh114, 3 months ago

why need to do pretreatment before dyeing of textile?

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Answered by Anonymous

3

Answer:

For using of cotton fabric we have design and colored with different processes. Pretreatment is a process for prior fabric dyeing which involves scouring and bleaching. ... These chemicals not only remove the impurities, but also attack the cellulose, leading to a reduction in strength, fabric weight loss [6,7].

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