Scouring of Polyester/Cotton Blends Goods

torsional rigidity, frictional properties) and chemical properties (thermal properties, density, resistance to chemical agents) of these two fibers have led to treat this blend within proper conditions. Cotton has very good resistance to alkalis but the action of aqueous alkalis may lead an adverse impact on polyester. It should not be pressure kier boiled in the presence of alkalis, as these conditions favor an accelerated attack on the fiber.

Typical Scouring Recipe Polyester/Cotton Blend Goods:

Wetting agent…………………………………..= 0.5-1.0 g/l
Sequesterant …………………………………..= 1.0-2.0 g/l
Detergent…………………………………………= 1.0-2.0 g/l
Caustic soda 36°Be……………………………..= 1.0-3.0 g/l
Soda ash…………………………………………….= 1.0-4.0 g/l
Temperature…………………………………….= 90-100°C
Time………………………………………………….= 30-60 min
pH…………………………………………………….= 10.5+/-0.5
M:L…………………………………………………...= 1:10

Scouring Procedure:
Set the with substrate at room temperature with wetting agent, detergent, sequestering agents, and alkalis.
Raise the temperature to 95-100°C @1-3°/min
Run the bath for 30-60 min
Cool down the bath temperature to 60-70°C and drop
Rinse twice with hot (around 60°C) and cool water.

Search Post

Label :