Process for dyeing and finishing cuprammonuium fabric
A cupro fiber and process technology, applied in the field of fiber fabric processing technology, can solve the problems of easy swelling, hard and brittle fabrics, scratches on the fabric surface, etc., and achieve the effect of complete treatment
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Embodiment l
[0045] The first step: pretreatment process
[0046] 1. Desizing process:
[0047] Put the cupro ammonia fiber in the normal temperature winding machine, start to heat up at room temperature, raise the temperature to 40°C, add desizing enzyme 2 g / L and run for 10 minutes, add penetrant 1g / L, heat up to 80°C and run for 20 minutes to reach Bath ratio is 1:20;
[0048] 2. bleaching process
[0049] Drain the remaining desizing aid and water in the packaging machine. The first step: add soda ash to adjust the pH value to 11, and stir for 20 minutes until uniform; the second step: add 30% hydrogen peroxide 6g / L. Raise the temperature to 40°C, stir for 10 minutes, the third step: add stabilizer 2 g / L, stir for 5 minutes until uniform; the fourth step: add detergent 1 g / L, stir for 10 minutes, liquor ratio 1:20;
[0050] 3. Enzyme washing and polishing process by air machine
[0051] Add cellulase 1g / L, run for 5 minutes; adjust the pH value to 4.5 with buffer ac...
Embodiment 2
[0067] The first step: pretreatment process
[0068] 1. Desizing process:
[0069] Put the cupro ammonia fiber in the normal temperature winding machine, start to heat up at room temperature, raise the temperature to 40°C, add desizing enzyme 3 g / L and run for 10 minutes, add penetrant 2 g / L, heat up to 80°C and run for 20 minutes, Reach a bath ratio of 1:20;
[0070] 2. bleaching process
[0071] Drain the remaining desizing aid and water in the packaging machine. The first step: add soda ash to adjust the pH value to 11, and stir for 20 minutes until uniform; the second step: add 30% hydrogen peroxide 6 g / L. Heat up to 40 ° C, stirring l0min; the third step. Add stabilizer 4g / L, stir for 5min until uniform; the fourth step. Add detergent 2g / L, stir for 10min, liquor ratio 1:20;
[0072] 3. Enzyme washing and polishing process by air machine
[0073] Add 1 g / L cellulase and run for 5 minutes; adjust the pH value to 5 with buffer acid, run fo...
Embodiment 3
[0090] Pretreatment process
[0091] 1. Desizing process
[0092] Put the cupro ammonia fiber in the normal temperature winding machine, start to heat up at room temperature, raise the temperature to 40°C, add desizing enzyme 3 g / L and run for 10 minutes, add penetrant 2 g / L, heat up to 80°C and run for 20 minutes, Reach a bath ratio of 1:20;
[0093] 2. bleaching process
[0094] Drain the remaining desizing aid and water in the packaging machine. The first step: add soda ash to adjust the pH value to 10.5, and stir for 20 minutes until uniform; the second step: add 30% hydrogen peroxide 5 g / L, and heat up to 40 ℃, stir for 10min; Step 3: Add stabilizer 3g / L, stir for 5min until uniform; Step 4: Add detergent 2g / L, stir for 10min, liquor ratio 1:20;
[0095] 3. Enzyme washing and polishing by air machine
[0096] Add 1 g / L cellulase and run for 5 minutes; adjust the pH value to 4.8 with buffer acid, run for 5 minutes, control the heating tem...
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