Question

write a short note on anti wrinkle fibre for class 8​

Answer 1

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Required answer-:

Wrinkle resistant treatments have been used since 1929, when cotton fabrics were treated with a solution of urea and formaldehyde. The chemical treatment stiffened the fabric, thus making it wrinkle-resistant. Starting in the 1940s, a series of urea-formaldehyde derivatives were introduced.

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Answer 2

Answer:

Wrinkle resistant treatments have been used since 1929, when cotton fabrics were treated with a solution of urea and formaldehyde. The chemical treatment stiffened the fabric, thus making it wrinkle-resistant. Starting in the 1940s, a series of urea-formaldehyde derivatives were introduced.