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Theory of dying

Theory of dying: 
The procedure by which dye tufts enters into the textile goods……. (4 steps)
1. Dye particle come to the fabric surface from dye bath.
2. Fabric/textile materials absorbed the dye molecule from the outer surface.
3. Migration of dye molecules to everywhere of the fiber molecules.
4. Anchoring or fixing the dye molecules to the fiber molecules by forming hydrogen on covalent bond.
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