One-bath dyeing technology for polyester-cotton blended fabric by natural vegetable dye
A technology of natural plant dyes and polyester-cotton blending, applied in the textile field, can solve problems such as application restrictions, environmental pollution, and corrosion of equipment, and achieve the effects of reducing energy consumption, waste water, and waste water discharge
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Embodiment 1
[0036] A kind of one-bath dyeing process of natural vegetable dyestuff to polyester-cotton blended fabric, comprises the following steps:
[0037] A. Freeze the polyester-cotton blended fabric at minus 50°C for 3.5 hours, then carry out vacuum reheating under a vacuum of -0.2MPa to return the polyester-cotton blended fabric to normal temperature, and the vacuum rewarming time is controlled at 1.2h ;
[0038] B. Put the rewarmed polyester-cotton blended fabric into the one-bath treatment solution with a bath ratio of 1:15, then raise the temperature to 100°C at a rate of 2.5°C / min and keep it warm for 30 minutes;
[0039] C. After the heat preservation is over, take out the fabric, rinse with sodium silicate solution for 3 minutes, soap, wash and dry.
[0040] The one-bath method treatment liquid of described step B comprises the composition of following percentage by weight:
[0041] Natural Vegetable Dyes 5%
Embodiment 2
[0055] A kind of one-bath dyeing process of natural vegetable dyestuff to polyester-cotton blended fabric, comprises the following steps:
[0056] A. Freeze the polyester-cotton blended fabric at minus 45°C for 5 hours, and then carry out vacuum rewarming under a vacuum of -0.2MPa to return the polyester-cotton blended fabric to normal temperature, and the vacuum rewarming time is controlled at 1 hour;
[0057] B. Put the rewarmed polyester-cotton blended fabric into the one-bath treatment solution with a bath ratio of 1:20, then raise the temperature to 100°C at a rate of 2°C / min and keep it warm for 30 minutes;
[0058] C. After the heat preservation is over, take out the fabric, rinse with sodium silicate solution for 2 minutes, soap, wash and dry.
[0059] The one-bath method treatment liquid of described step B comprises the composition of following percentage by weight:
[0060] Natural Vegetable Dyes 2%
[0061] Surfactant 4%
[0063]...
Embodiment 3
[0074] A kind of one-bath dyeing process of natural vegetable dyestuff to polyester-cotton blended fabric, comprises the following steps:
[0075] A. Freeze the polyester-cotton blended fabric at minus 60°C for 3 hours, and then carry out vacuum rewarming under a vacuum of -0.2MPa to return the polyester-cotton blended fabric to normal temperature, and the vacuum rewarming time is controlled at 1.5h;
[0076] B. Put the rewarmed polyester-cotton blended fabric into the one-bath treatment solution with a bath ratio of 1:10, then raise the temperature to 100°C at a rate of 3°C / min and keep it warm for 20 minutes;
[0077] C. After the heat preservation is over, take out the fabric, rinse with sodium silicate solution for 3.5 minutes, soap, wash and dry.
[0078] The one-bath method treatment liquid of described step B comprises the composition of following percentage by weight:
[0079] Natural Vegetable Dyes 8%
[0080] Surfactant 2%
[0082] S...
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