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A wool, low temperature technology, applied in dyeing, textile and paper making, etc., can solve the problems affecting the fiber feel, luster, vividness, dye uptake rate, reduction of color fixing rate, damage to the scale structure on the surface of wool fiber, etc. Reduced wool fibre damage, shorter dyeing times and lower dye usage
Active Publication Date: 2020-06-16
JIANGSU DANMAO TEXTILE
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However, it can be known from dyeing thermodynamics that under the same dye dosage and process conditions, the dyeing rate and fixation rate of the dye will decrease as the temperature rises.
This kind of long-term high-temperature boiling dyeing not only consumes a lot ...
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0029] Wool Raw Material Indicators:
[0030] 70s Australian wool strips;
[0031] Selection and dosage of dyes and auxiliaries:
[0032] Reactive dyes for wool Black ARC, concentration 2.5% (owf); Navy blue ARC-B01, concentration 0.5% (owf);
[0033] Main auxiliary parameters:
[0034] The concentration of formic acid is 2%; the dosage of Yuanming powder is 2% (owf); the dosage of hydrogen peroxide is 15% (owf); the MTG enzyme is 5% (owf).
[0035] A low-temperature and weak-damage dyeing process for wool, such as figure 1 As shown, proceed according to the following process steps:
[0036] (1) Pre-treatment: Put the wool ball into the washing machine, add 2% (owf) washing liquid and adjust the pH to 7.5, and keep the water temperature at 55°C for 10 minutes. After washing, dry the wool quickly, and put it into the dyeing vat for water to keep the water circulation system running normally;
[0037] (2) Hydrogen peroxide-formic acid oxidation pretreatment: heat up ...
Embodiment 2
[0048] Wool Raw Material Indicators:
[0049] 70s Australian preshrunk wool strips
[0050] Selection and dosage of dyes and auxiliaries:
[0051] Reactive dyes for wool Black ARC, concentration 2.5% (owf); Navy blue ARC-B01, concentration 0.5% (owf);
[0052] Main auxiliary parameters:
[0053] The concentration of formic acid is 2%; the dosage of Yuanming powder is 2% (owf); the dosage of hydrogen peroxide is 15% (owf); the MTG enzyme is 5% (owf).
[0054] A low-temperature and weak-damage dyeing process for wool, such as figure 1 As shown, proceed according to the following process steps:
[0055](1) Pre-treatment: Put the wool ball into the washing machine, add 2% (owf) washing liquid and adjust the pH to 7.5, and keep the water temperature at 55°C for 10 minutes. After washing, dry the wool quickly, and put it into the dyeing vat for water to keep the water circulation system running normally;
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to the field of textile technology, and provides a low-temperature weak-damage wool dyeing process. The low-temperature weak-damage wool dyeing process comprises the following steps of (1) carrying out pretreatment; (2) performing hydrogen peroxide-formic acid oxidation pretreatment; (3) carrying out dyeing; (4) performing pressure relief; (5) carrying out alkali color fixingtreatment; (6) carrying out soaping; (7) carrying out water washing; and (8) performing repairing treatment, and taking out of a cylinder. The process has the beneficial effects that (1) through a triple swelling synergistic effect of the formic acid-hydrogen peroxide oxidization system, dyeing under pressure and glutamine transaminase repairing, low-temperature dyeing can be realized and the damage to the wool fibers is reduced, the dyeing can be performed at the dyeing temperature of 75-80 DEG C, the dyeing time is shortened by 30-35%, and the problem of yellowing caused by long-term boiling dyeing of wools at a high temperature can be avoided; and 2) through the process, the dye uptake and the dyeing fastness are both improved by 5-6% compared with those in the conventional dyeing method, the fiber strength, breaking elongation, and the moisture regain rate are all improved in a relatively high degree, the use amount of dye is highly reduced, and the enterprise production cost is lowered.
Description
technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a low-temperature weak-damage dyeing process for wool. Background technique [0002] Wool fiber, in the traditional dyeing process, there is a hydrophobic dense scale layer on its surface that hinders the adsorption, penetration and diffusion of wool dye molecules into the fiber, especially for dyes with low affinity, the concentration of residual dye is high, and sewage treatment It is difficult, so wool dyeing must be completed under high temperature conditions for a long time, and co-bath dyeing with multi-component auxiliaries. However, it can be known from dyeing thermodynamics that under the same dye dosage and process conditions, the dyeing rate and fixation rate of the dye will decrease as the temperature rises. This kind of long-term high-temperature boiling dyeing not only consumes a lot of energy and has a mediocre dyeing effect, but also greatly ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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