Knitted fabric dyeing process capable of reducing water consumption

A technology of knitted fabrics and crafts, applied in dyeing, textiles and papermaking, fiber treatment, etc., can solve the problems of poor overall effect, large space occupation, and long erasing time, and achieve good fabric feel, fast erasing time, and reduced The effect of water consumption

Inactive Publication Date: 2020-04-07
嘉兴晨得利时装股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The dyeing and finishing process of knitted fabrics used by existing enterprises or factories is relatively simple, and in the process of slightly lower temperature, the phenomenon of embossing on the surface after extrusion or folding will occur, which takes a long time to eliminate; and at this temperature The fabrics woven and shaped in the slightly lower process need to be stacked for two to three days, which consumes a lot of time, takes up a lot of space, and the overall effect is not good

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A knitted fabric dyeing process for reducing water consumption, the specific steps are as follows:

[0019] S1. Pretreatment: Raise the temperature of the first bath to 70°C, then add the fabric, use an aqueous solution containing 0.6g of glacial acetic acid per liter to neutralize the gray cloth to a pH value of 6 at a temperature of 20°C, and then add 80 part of pretreatment solution, and keep warm for 1h, then discharge the first bath, add the second bath; the pretreatment solution includes polyphenol oxidase 1.5g / L, phytase 0.5g / L, silk fibroin 1g / L, 2.8g / L Trimethylglycine;

[0020] S2. Dyeing: the bath ratio is 1:8, the dyeing temperature is 40°C, the dye weight concentration is 6%, the initial bath liquid pH is 6.5, the dyeing assistant is 90g / L, and the color fixing time is 2h;

[0021] S3. Dehydration and drying: use a dehydrator for dehydration, and the drying temperature is 120°C;

[0022] S4. Post-treatment: first add water to the reactor, then add finishi...

Embodiment 2

[0027] A knitted fabric dyeing process for reducing water consumption, the specific steps are as follows:

[0028] S1. Pretreatment: Raise the temperature of the first bath to 80°C, then add the fabric, use an aqueous solution containing 0.7g of glacial acetic acid per liter to neutralize the gray cloth to a pH value of 6.5 at a temperature of 23°C, and then add 90 Parts of pretreatment solution, and keep warm for 1.5h, then discharge the first bath, add the second bath; the pretreatment solution includes polyphenol oxidase 2g / L, phytase 0.8g / L, silk fibroin 1g / L, 3g / L Trimethylglycine;

[0029] S2. Dyeing: the bath ratio is 1:9, the dyeing temperature is 43°C, the dye weight concentration is 7%, the initial bath liquid pH is 7, the dyeing assistant is 95g / L, and the fixation time is 2.5h;

[0030] S3. Dehydration and drying: use a dehydrator for dehydration, and the drying temperature is 123°C;

[0031] S4. Post-treatment: first add water to the reactor, then add finishing ...

Embodiment 3

[0036] A knitted fabric dyeing process for reducing water consumption, the specific steps are as follows:

[0037] S1. Pretreatment: Raise the temperature of the first bath to 90°C, then add the fabric, use an aqueous solution containing 0.8g of glacial acetic acid per liter to neutralize the gray cloth to a pH value of 7 at a temperature of 25°C, and then add 100 part of pretreatment solution, and keep warm for 2h, then discharge the first bath, add the second bath; the pretreatment solution includes polyphenol oxidase 1.7g / L, phytase 0.7g / L, silk fibroin 1g / L, 2.9g / L Trimethylglycine;

[0038] S2. Dyeing: the liquor ratio is 1:10, the dyeing temperature is 45°C, the dye weight concentration is 8%, the initial bath liquid pH is 7.5, the dyeing aid is 100g / L, and the color fixing time is 3h;

[0039] S3. Dehydration and drying: use a dehydrator for dehydration, and the drying temperature is 125°C;

[0040] S4. Post-treatment: first add water to the reactor, then add finishin...

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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PUM

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Abstract

The invention discloses a knitted fabric dyeing process capable of reducing water consumption. The dyeing process comprises the following specific steps of S1, pretreating, namely raising the temperature of first bath lotion to 70-90 DEG C, adding fabric, neutralizing gray fabric to a pH value of 6-7 at 20-25 DEG C by using an aqueous solution containing 0.6 g to 0.8 g of glacial acetic acid per liter, adding 80-100 parts of pretreatment solutions and keeping warm for 1-2 hours, wherein the pretreatment solutions comprise 1.5-2 g / L of polyphenol oxidase, 0.5-0.8 g / L of phytase, 1 g / L of silk fibroin and 2.8-3 g / L of trimethyl glycine; S2, dyeing, wherein a bath ratio is 1: 8-10, the dyeing temperature is 40-45 DEG C, the dye weight concentration is 6-8%, the initial bath lotion pH is 6.5-7.5, a dyeing auxiliary is 90-100 g / L, and the fixation time is 2-3 hours; S3, dehydrating and drying, wherein a finishing agent is prepared by citric acid and beta-cycldextrin; and S5, carrying out tenter heat setting, inspection and packaging. According to the fabric dyeing process, the production efficiency is improved, the energy consumption and the water consumption are reduced, and a manufactured product is good in quality.

Description

technical field [0001] The invention relates to the technical field of knitting printing and dyeing, more specifically, it relates to a knitting fabric dyeing process which reduces water consumption. Background technique [0002] The dyeing and finishing process of knitted fabrics used by existing enterprises or factories is relatively simple, and in the process of slightly lower temperature, the phenomenon of embossing on the surface after extrusion or folding will occur, which takes a long time to eliminate; and at this temperature The fabrics woven and shaped in the slightly lower process need to be stacked for two to three days, which consumes a lot of time, takes up a lot of space, and the overall effect is not good. Accordingly, the present invention proposes a knitted fabric dyeing process that reduces water consumption. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provi...

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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IPC IPC(8): D06P1/46D06P1/647D06P1/38D06P1/653D06M13/207D06M15/03
CPCD06M13/207D06M15/03D06P1/38D06P1/46D06P1/647D06P1/6533
Inventor 陈林忠
Owner 嘉兴晨得利时装股份有限公司
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