Different Dyes and Textile Fibres

 Reactive Dye: Applicable for cotton, linen, viscose, wool, silk. The dyestuff forms a chemical Link with the fibre. It has very good fastness properties. 

Disperse Dye: Applicable to polyester, nylon, acetate. It is water insoluble; applied' from dispersions; diffuse into the fibre at high temperature. It has also good fastness properties. 

Vat Dye: Applicable for cotton, linen, viscose. The insoluble dyestuff is made soluble in a reducing vat so that it can diffuse into the fibre. After diffusion is complete, it is then re-oxidized into it's insoluble form. It has high fastness to washing, chlorine, boiling, light, weather, rubbing and perspiration. 

Direct Dye: Applicable for cotton, linen, viscose, silk. Simple diffusion into the fiber, from aqueous solution. It has relatively poor fastness properties to light, washing, and perspiration. These fastness properties can be improved by after treatment. 

Basic Dye: It is suitable for acrylic fibres (other fibres by mordanting). It reacts with acidic groups or mordants (a chemical which can react or complex with a chromophore to form an insoluble color) in the fibre. It has good fastness properties on acrylic fibres.

Acid Dye: Applicable for wool, silk, nylon. Applied from an acidic dyebath. The fastness properties of this dye-stuff depend on the fibre type.

There are also some other dyestuffs such as sulfur, azoic, metal complex, chrome dyes etc