One-bath production process of polyester-cotton blended yarn
A technology of polyester-cotton blending and production process, which is applied in the direction of enzyme/microbe biochemical treatment, dyeing method, biochemical fiber treatment, etc. It can solve the problems of high yarn damage and high consumption, and achieve short process and high efficiency. Effect
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Embodiment 1
[0028] The yarn specification is 45 polyester-cotton yarns with a polyester-cotton blend ratio of 65:35, and the dyeing method is cheese dyeing. The specific steps are:
[0029] (1) The process of pretreatment and dyeing of polyester components is as follows: hoist polyester-cotton blended yarn cheese into normal temperature water with a liquor ratio of 1:6.9, and add high-efficiency penetrating detergent RW 0.5 into the master tank after heating up to 40°C g / L, add scouring enzyme SOFT 0.5% owf after circulation for 5 minutes and keep it in circulation for 5 minutes; heat up to 60℃ at a heating rate of 2.5℃ / min and keep for 20min; after that, add dispersant RDT-35 2g / L, AB acid 2g / L to adjust the pH to 4.2; add disperse dyes Blue SE-RPD 0.12%, Red SE-RPD 0.11%, Yellow SE-RPD 0.14% to the master tank, heat up to 130°C for 30min, and then Cool down to 60°C;
[0030] (2) The process of dyeing cotton components is as follows: add 2g / L soda ash and 20g / L sodium sulfate to the ma...
Embodiment 2
[0035] The yarn specification is 45 polyester-cotton yarns with a polyester-cotton blend ratio of 65:35, and the dyeing method is beam dyeing. The specific steps are:
[0036](1) The process of pretreatment and dyeing of polyester components is as follows: hang polyester-cotton blended yarn into the warp beam, put it into normal temperature water, the bath ratio is 1:7.5, and add high-efficiency penetrating detergent RW 0.5 into the main tank after heating up to 40°C g / L, add scouring enzyme SOFT0.5% owf after 5min circulation and maintain 5min circulation; heat up to 60℃ at a heating rate of 2.5℃ / min and keep for 20min; add 2g of dispersant RDT-35 into the main tank / L, AB acid 2g / L to adjust the pH to 4.2; add disperse dyes Navy Blue S-WF 1.47%, Red S-WF 0.083%, Yellow S-WF 0.065% to the main tank, heat up to 135 ° C for 50 minutes, Cool down to 60°C after finishing;
[0037] (2) The process of dyeing cotton components is as follows: add 2g / L soda ash and 80g / L sodium sulfa...
Embodiment 3
[0043] The yarn specification is 45 polyester-cotton yarns with a polyester-cotton blend ratio of 40:60, and the dyeing method is warp beam dyeing. The specific steps are:
[0044] (1) The process of pretreatment and dyeing polyester components is as follows: hang polyester-cotton blended yarn into warp beam, put it into normal temperature water, the bath ratio is 1:10.5, and add 1g of high-efficiency penetrating detergent RW into the main tank after heating up to 40°C / L, keep in circulation for 5min, then add scouring enzyme SOFT1%owf and keep in circulation for 5 minutes; raise the temperature to 60℃ at a heating rate of 2℃ / min, and keep for 30min; AB acid 2g / L to adjust the pH to 4.2; add disperse dyes Black SWF 300% 2.0%, Red S-WF 0.1%, Yellow S-WF 0.8% to the main tank, and heat up to 80°C at a heating rate of 2°C / min. Keep it for 10 minutes, then raise the temperature at 1°C / min to 135°C for 40 minutes, then cool down to 60°C;
[0045] (2) The process of dyeing cotton ...
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