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A cotton knitted fabric and process technology, applied in the field of cotton knitted fabric dyeing process, can solve the problems of low probability of one-time dyeing success, large waste of cooling water, high coal consumption, etc., to improve the probability of one-time dyeing success, reduce The effect of electricity consumption and capital cost reduction
Active Publication Date: 2016-04-06
JIHUA 3543 KNITTING CLOTHING
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[0017] Therefore, in addition to the low probability of one-time dyeing success, this traditional dyeing process also has disadvantages such as long time, waste of cooling water, high power consumption and coal consumption.
Method used
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
[0035] The dyeing process of this embodiment is all suitable for light, medium and dark dyes.
[0036] The technological process of the present embodiment is as follows:
[0037] 1. At room temperature, add water to the dyeing machine. It takes 3 minutes to add water. The amount of water added is controlled according to the amount of pre-treated cotton knitted fabric in the dyeing machine and the predetermined bath ratio;
[0038] 2. Raise the temperature to the first set temperature of 35°C, and maintain the temperature, add the dyeing accelerator sodium sulfate, the first soda ash and leveling agent to the dyeing machine, add the dyeing accelerator, the first soda ash and leveling agent The time of using the agent is 3 minutes, and the dyeing machine runs for 15 minutes after adding;
[0039] 3. Add the reactive dyes to the dyeing machine after using clear water as the chemical material. It takes 10 minutes to add the melted reactive dyes to the dyeing machine, and then the...
Embodiment 2
[0056] The dyeing process of the present embodiment is all suitable for reactive dyes such as reactive bright yellow, reactive fruit green and reactive emerald blue.
[0057] 1. At room temperature, add water to the dyeing machine. It takes 5 minutes to add water. The amount of water added is controlled according to the amount of pre-treated cotton knitted fabric in the dyeing machine and the predetermined bath ratio;
[0058] 2. Raise the temperature to the first set temperature of 40°C, and maintain the temperature, add the dyeing accelerator salt, the first substitute alkali and leveling agent into the dyeing machine, add the dyeing accelerator, the first substitute alkali and leveling agent The time of using the agent is 5 minutes, and the dyeing machine runs for 20 minutes after adding;
[0059] 3. Add the reactive dye to the dyeing machine after using clear water as the chemical material. The time to add the melted reactive dye to the dyeing machine is 25 minutes, and th...
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 discloses a dyeing process for cotton knitted fabric. The dyeing process mainly aims to improve the one-time success probability of dyeing. The dyeing process at least comprises the steps that dyeing accelerating agents, first sodium carbonate or substitution alkali and levelling agents are added to a dyeing machine; reactive dyes and second sodium carbonate or substitution alkali are added to the dyeing machine in the mode of dissolving materials with clear water; the dyeing machine is heated to a second set temperature, and the second set temperature is kept for 25 to 65 minutes. Before the dyes are added, the dyeing accelerating agents of anhydrous sodium sulphate and the sodium carbonate or the substitution alkali for fixing colors are added, the mode of dissolving the materials with the clear water is adopted twice to add the dyes and the second sodium carbonate or substitution alkali for subsection heating, the general character and the specific characters of the reactive dyes are comprehensively considered, such as proaporphine, temperature types and salt types, the dye yield and levelling property of the process are improved, the number of the adopted dyes is reduced, dyeing defects are overcome, the color phase is stable, the number of the steps is small, the operation is simple and easy to control, the procedure time is short, and the one-time success probability of dyeing is comprehensively improved.
Description
technical field [0001] The invention relates to a dyeing process of cotton knitted fabrics. Background technique [0002] With global warming, rivers are drying up, lakes are drying up, and the ozone layer is being continuously destroyed, the earth where human beings live is increasingly threatened. Low-carbon, energy-saving production, and emission reduction have become the consensus of sustainable development of the global economy. [0003] my country is a traditional textile and garment processing country, but not a powerful country. The printing and dyeing industry in the textile and garment industry ranks third in my country's high-pollution industries. Among the many knitting printing and dyeing enterprises in our country, the probability of one-time dyeing success can reach 70%. If the dyeing is unsuccessful once, it needs to be added or slightly repaired, the production cost is 120%, the production efficiency is 80%, and the profit rate is 45%. The production cost ...
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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Application Information
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