What is dyeing process?

What is dyeing process?

Dyeing is the process of dyeing yarns, woven and knitted fabrics with dyes.  
In the dyeing process, various  dyeing auxiliary agents such as dispersant and levelling agent for levelling, reducing agent and soaping agent for washing unfixed dyes to improve dyeing fastness, fixing agent for cotton and nylon dyeing, etc.  
The type of dye, dye auxiliaries or methods of improving colour fastness vary from fibre to fibre.