All Fastness Problem & Solve :
Problem : Light Fastness not ok.
Solve :
1. 5 to6 g/litter Hydrogen per oxide will be used at Cotton Scouring.
2. 2%-4% UV absorbing agent/Light fastness improver(Trade Name: Dyapol KUV, Supplier:
Yorkshire) will be added with leveling agent for cotton fabric, polyester fabric or Cotton Polyester
blended fabric.
Problem: Color fastness to wash, water, perspiration, Saliva not ok.
Solve:
1. Double reduction with Caustic & Hydrous = 2g/l& 2g/l.(900 C X 20 Min) For Polyester fabric.
2. Double soaping with soda ash Soaping= 3g/l Soda ash= 1g/l(800C X 20 Min) For Cotton fabric.
Fixing 3-4 g/l.
3. For Cotton Polyester blended fabric Normal Hot > P.Part dyeing > Cotton Scouring > Double
Reduction >N.wash>Acid wash(if need)> Enzyme(if need)>C.Part dyeing > Double soaping with soda ash> Fixing 3-4 g/l.
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