Textile raw material staining method with stable staining
A dyeing method and technology of raw materials, applied in the field of printing and dyeing, can solve the problems affecting the fullness and color fastness of finished fabrics, and the effect of fabric printing and dyeing is not ideal, so as to improve the fullness and color fastness, improve the color fastness, and stabilize the color and luster. Effect
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Embodiment 1
[0017] Example 1. A method for dyeing textile raw materials with stable dyeing, comprising the steps of:
[0018] Step 1: Add dyeing agent and water into the dyeing vat, stir evenly, raise the temperature to 55°C at a heating rate of 3°C, keep it for 1.5h, add carbonic acid to adjust the pH of the dyeing solution to 5;
[0019] Step 2: Soak the textile raw material in the dyeing vat for 1.5 hours, then raise the temperature at a rate of 2°C / min to 93°C and keep it for 2.5h; the bath ratio of the textile raw material is 1:18;
[0020] Step 3: drying, drying the soaked textile raw materials at 85°C;
[0021] Step 4: Rinse, take out the dried textile raw material and soak it in clean water for 35 minutes, and add rinse agent;
[0022] Step 5: dry, take out the rinsed textile raw materials and dry naturally; the dyeing agent is made of the following raw materials in parts by weight: 8 parts of diphenyl ether tetra-acid dianhydride, 5 parts of polypropylene glycol, 18 parts of mi...
Embodiment 2
[0023] Example 2. A method for dyeing textile raw materials with stable dyeing, comprising the steps of:
[0024] Step 1: Add dyeing agent and water into the dyeing vat, stir evenly, raise the temperature to 60°C at a heating rate of 4°C, keep it for 1.5h, add carbonic acid to adjust the pH of the dyeing solution to 5;
[0025] Step 2: Soak the textile raw material in the dyeing vat for 3.5 hours, then raise the temperature at a rate of 3°C / min to 96°C and keep it for 2.5h; the liquor ratio of the textile raw material is 1:18;
[0026] Step 3: drying, drying the soaked textile raw materials at 90°C;
[0027] Step 4: Rinse, take out the dried textile raw material and soak it in clean water for 55 minutes, and add rinse agent;
[0028] Step 5: dry, take out the rinsed textile raw materials and dry naturally; the dyeing agent is made of the following raw materials in parts by weight: 10 parts of diphenyl ether tetra-acid dianhydride, 2 parts of polypropylene glycol, 20 parts of...
Embodiment 3
[0029] Example 3. A method for dyeing textile raw materials with stable dyeing, comprising the steps of:
[0030] Step 1: Add dyeing agent and water into the dyeing vat, stir evenly, raise the temperature to 57°C at a heating rate of 3.5°C, keep it for 1.5h, add carbonic acid to adjust the pH of the dyeing solution to 5;
[0031] Step 2: Soak the textile raw material in the dyeing vat for 2.5 hours, then raise the temperature at a rate of 2.5°C / min, raise the temperature to 95°C and keep it for 2.5h; the bath ratio of the textile raw material is 1:18;
[0032] Step 3: drying, drying the soaked textile raw materials at 87°C;
[0033] Step 4: Rinse, take out the dried textile raw material and soak it in clean water for 45 minutes, and add rinse agent;
[0034] Step 5: dry, take out the rinsed textile raw materials and dry naturally;
[0035] The dyeing agent is made of the following raw materials in parts by weight: 9 parts of diphenyl ether tetra-acid dianhydride, 4 parts of...
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