Pigments are the solid colored powder available in both organic as well as inorganic form and mainly find usage in changing of color. As these are unaffected physically/chemically by substrate in which these are mixed, some industry sectors these find use in include chemical compounding industries, ink, plastics, textile, agriculture and other areas.

An acid dye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics. Some acid dyes are used as food colorants, and some can also be used to stain organelles in the medical field. 

An acid dye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics.