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Polyester dyeing process

A process and polyester technology, applied in the field of polyester dyeing process, can solve the problems of poor dyeability of polyester fibers, cumbersome, and increase the burden of sewage treatment, and achieve the effect of saving energy consumption, saving energy and production costs, and saving work content

Pending Publication Date: 2021-12-17
福建信泰印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dyeability of polyester fiber is poor, especially in terms of color fastness, a series of post-treatment procedures are required. The traditional dyeing process needs to cool down and drain the liquid after dyeing, then add water to heat up, and then add post-finishing chemical assistants. Insulation treatment with the agent, and cooling and draining and cleaning again, which not only brings more tedious work to the factory workers, but also causes a large energy consumption of electricity, steam and water, and increases the burden of sewage treatment

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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Effect test

Embodiment 1

[0031] Noodle type: warp knitted jacquard sandwich jacquard mesh;

[0032] Fabric specification: 250g / m 2

[0033] Yarn Composition: 100% Polyester

[0034] Fabric color: black;

[0035] Fabric dyeing process:

[0036] First, pre-treat the fabric. The process is as follows: put the fabric in the dye vat and add water, then heat up to 80°C at 2°C / L, add pre-treatment additives in the water and continue to heat up to 110°C, then treat for 10 minutes, then Drainage; the former assistant auxiliary agent includes refining agent 0.6g / L, sodium hydroxide 2.5g / L, sodium carbonate 2.5g / L, sodium hydrosulfite 1.2g / L, degreasing agent 1.2g / L; pretreatment ends Afterwards, the temperature is lowered and the liquid is drained, and then the dyeing process is carried out;

[0037] Add clear water to the dyeing vat, the bath ratio is 1:6, then add leveling agent 1.1g / L, glacial acetic acid 1.1g / L, add 5% disperse dye (owf) after the dyeing vat runs at room temperature for 10 minutes, and...

Embodiment 2

[0039] Surface type: weft-knitted double-sided fabric;

[0040] Fabric specification: 200g / m 2

[0041] Yarn composition: 100% polyester;

[0042] Fabric color: gray;

[0043] Fabric dyeing process:

[0044] First, pre-treat the fabric. The process is as follows: put the fabric in the dye vat and add water, then raise the temperature to 85°C at 2°C / L, add pre-treatment additives in the water and continue to heat up to 110°C, then treat for 10 minutes, then Drainage; the former assistant auxiliary agent includes refining agent 0.8g / L, sodium hydroxide 3g / L, sodium carbonate 2.5g / L, hydrosulfite 1.5g / L, degreasing agent 1.5g / L; Cool down and drain, and then carry out the dyeing process;

[0045]Add clear water to the dyeing vat, the bath ratio is 1:8, then add leveling agent 1.3g / L, glacial acetic acid 1.0g / L, add 4% (owf) disperse dye after the dyeing vat runs at room temperature for 10 minutes, and add 4% (owf) of disperse dye at 1°C / L Raise the temperature to 130°C and ...

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Abstract

The invention relates to the technical field of textile dyeing and finishing, in particular to a polyester dyeing process. The polyester dyeing process comprises the following steps that cloth and clear water are added into a dye vat according to a bath ratio of 1: 5-1: 10, then a leveling agent and a weak acid reagent are added, the dye vat is operated at normal temperature for 5-10 minutes, then dye is added, heating is achieved to 130-135 DEG C at the speed of 1-1.5 DEG C / min, the temperature is kept for 35-45 minutes, then cooling is achieved to 75-85 DEG C at the speed of 1.5-2 DEG C / min. Part of fabric is taken out, sample cutting and color matching are carried out, then a strong alkali reagent and a reducing agent are added into the dye vat, heat preservation is carried out for 25-35 minutes, and then liquid drainage is carried out; and finally, the fabric is washed and shaped. According to the polyester dyeing process, the production process, the energy consumption and the production cost are reduced; and the polyester dyeing process reduces the discharge of sewage, not only reduces the burden of factory sewage treatment, but also is more environment-friendly.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a polyester dyeing process. Background technique [0002] Polyester shoe material fabric is a kind of chemical fiber fabric that is widely used in daily life. The biggest advantage is that it has good wrinkle resistance and shape retention, so it is suitable for outerwear, various bags and outdoor products. It also accounts for a relatively large proportion of shoe materials, so the competition in the market is becoming more and more fierce. Manufacturers face competition not only in terms of quality, but also in terms of price. [0003] The shoe material fabric produced by polyester has the characteristics of high strength, good elasticity, good heat resistance, good water absorption, good wear resistance, good light resistance, and good corrosion resistance. The strength is 2.6-5.7CN / dtex, and the high-strength fiber is 5.6-8.0CN / dtex. Due to its low hyg...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/653D06P1/673D06P3/54
CPCD06P1/16D06P1/6533D06P1/6735D06P3/54
Inventor 许金升谢贵华周行志朱艳丽胡文广
Owner 福建信泰印染有限公司
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