1. Polyester cheese dyeing process
1.1 production materials and equipment
Polyester 100D network yarn, dyes, glacial acetic acid, leveling agent, reducing cleaning agent, antistatic agent, ry-1180v high temperature and high pressure dyeing prototype
1.2 technological process, conditions and prescription:
Raw yarn entering the mill - loosing - chamfering - cage filling - entering the dyeing vat - pretreatment (desizing, scouring and bleaching in one, treatment at 100 ℃ for 20 min, Soaping agent 1g / L degreasing) - washing - adding dissolved dyes and auxiliaries into the dyeing tank in turn - adding yarn for dyeing (1 ℃ / 1min), heating up to 70 ℃ for leveling for 10min - (1 ℃ / 1min) heating up to 100 ℃ for leveling for 10min - (1 ℃ / min) heating up to 130 ℃ for 45-60min - high temperature drainage - washing water - reduction cleaning (100 ℃ for 30min), For dark color, wash water - acetic acid neutralization - wash water (with antistatic agent) - dehydration - drying.
Dyeing prescription (by weight of fabric)
Disperse dye (o.w.f.) x
Glacial acetic acid 1.2g/l
Leveling agent 1.2g/l
Reduction cleaning prescription
Glacial acetic acid 1.5g/l
Reducing detergent 1.5g/l
The prescription of antistatic agent is 1.0g/l
