Multiple choice

Which kind of dyes are produced during the process of dyeing?

  1. Ingrain Dyes

  2. Vat Dyes

  3. Acid dyes

  4. Basic dyes

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

They are produced in the fibre itself during dyeing. For example, a cloth is soaked in an alkaline solution of b - naphthol and dipped in a diazonium salt solution. Azodye is produced on the fibre due to coupling.