What is Pigment Dyeing?
by : Rahul Sharma
PIGMENT DYEING:
Pigment dyeing is not really "dyeing" in it's truest from because the pigments stick on the febric with the help of binders. Pigments are insoluble in water. They exist in the from of finely ground molecules, milled for garment dyeing purposes into a paste. When anionic dispersing agents are added, a slightly negative charge is present, thus the foundation for pigment dyeing is born.
When positively charged cationic pre-treat is added to the fiber a magnetic bond is formed. The process is complete when a cationic binder is added to "lock" the pigment into place. In pigment dyeing no actual chemical reaction takes place between the dye and the fabric.
