A kind of worsted machine washable cashmere knitted product and its preparation process
A preparation process and cashmere technology, applied in textiles and papermaking, knitting, weft knitting and other directions, can solve the problems of good uniformity, low felt shrinkage, and good slippery feeling.
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Embodiment 1
[0023] A preparation process for machine-washable cashmere knitted products, comprising the following steps:
[0024] (1) Wash the cashmere with an average length of 45cm and an average fineness of 15μm, and then use a combined cashmere carding machine to card the washed cashmere 6 times in a single pass to obtain a carding length of 39~45mm and a roughness percentage. Cashmere fibers with an impurity content of less than 0.15% and less than 0.2%;
[0025] (2) Add the dye to the chemical tank, add water and stir evenly, adjust the pH to meet the process requirements, raise the temperature to 30°C and transport it to the dyeing vat, add cashmere fiber, and after running for 10 minutes, raise the temperature by 1°C every 1.0min, and control the dyeing temperature to 80°C , the holding time is 65 minutes, after rinsing, it is neutralized with acetic acid, when the pH is around 6, it is drained, and then the cashmere fiber is dehydrated and dried;
[0026] (3) Feed the dyed loose...
Embodiment 2
[0033] A preparation process for machine-washable cashmere knitted products, comprising the following steps:
[0034] (1) Wash the cashmere with an average length of 45cm and an average fineness of 15μm, and then use a combined cashmere carding machine to card the washed cashmere 6 times in a single pass to obtain a carding length of 39~45mm and a roughness percentage. Cashmere fibers with an impurity content of less than 0.15% and less than 0.2%;
[0035] (2) Add the dye into the chemical tank, add water and stir evenly, adjust the pH to meet the process requirements, then raise the temperature to 30°C and transport it to the dyeing vat, add cashmere fiber, after running for 10 minutes, raise the temperature by 1°C every 1.0min, and control the dyeing temperature to 90°C , the holding time is 100min, then add ammonia water for alkali treatment, rinse with acetic acid to neutralize, drain when the pH is around 6, then dehydrate and dry the cashmere fiber;
[0036] (3) Feed th...
Embodiment 3
[0043]A preparation process for machine-washable cashmere knitted products, comprising the following steps:
[0044] (1) Wash the cashmere with an average length of 45cm and an average fineness of 15μm, and then use a combined cashmere carding machine to card the washed cashmere 6 times in a single pass to obtain a carding length of 39~45mm and a roughness percentage. Cashmere fibers with an impurity content of less than 0.15% and less than 0.2%;
[0045] (2) Add the dye to the chemical tank, add water and stir evenly, adjust the pH to meet the process requirements, raise the temperature to 30°C and transport it to the dyeing vat, add cashmere fiber, after running for 10 minutes, raise the temperature by 1°C every 1.0min, and control the dyeing temperature to 100°C , the holding time is 80 minutes, then add ammonia water for alkali treatment, rinse and neutralize with acetic acid, drain when the pH is around 6, then dehydrate and dry the cashmere fiber;
[0046] (3) Feed the ...
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