dye

dyes are some chemist for add colour to fibric or yarn
dyes cauld be divided into classes by dyer according to their ability to dye various fibres. here are the classification of dyes.
1. for cellulosic there are direct, reactive, vat, sulphur, azo
2. for protein there are acid, reactive, mordan, complek logam
3. for cellulose acetates there is disperse
4. for nylon are disperse, acid, mordan, reactive
5. acrylic are basic
6. poliester is disperse
each of dyes have different fastness properties, hue, britness