Question:
good afternoon mam my name is anubhav, my question is preparation and properties of commenly used dyes, detergents, explosives, paints and varnishes. please help me mam. This id the topic of PCS mains exam.
Answer:
Properties-
1. It must have a suitable colour.
2. It must be fixed itself or capable of being fixed to fabric from the solution.
3. When fixed, it must be fast resistant to the action of light, water, soaps and detergents.
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