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High-temperature environmentally-friendly chemical fiber dyeing technology

A chemical fiber, high temperature technology, applied in the field of high temperature and environmentally friendly chemical fiber dyeing process, can solve the problems of poor dyeing stability, reproducibility and uniformity, fiber wrinkle damage, poor environmental protection performance, etc., to achieve dyeing reproducibility And the effect of good stability, mild treatment environment and avoiding damage

Inactive Publication Date: 2017-09-15
ZHANGJIAGANG JINYI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dyeing is an important process in chemical fiber processing. There are two types of dyeing: high-temperature dyeing and low-temperature dyeing. Generally, the dyeing rate of high-temperature dyeing is relatively high, but there are still many defects in the high-temperature dyeing process. It is easy to damage the fiber wrinkle and reduce the elasticity, and the stability, reproducibility and uniformity of dyeing are not good
At present, acid dyes and metal complex dyes are usually used for dyeing in the dyeing process. The application performance of acid dyes and metal complex dyes is poor in wet fastness, and their environmental performance is also poor, which limits their use. It is bound to be eliminated by the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high temperature and environment-friendly chemical fiber dyeing process, comprising the following steps:

[0034] (1) Pretreatment: Pretreatment of chemical fiber filaments, specifically with penetrating agent JFC 4g / L, chelating diffusion agent sodium lignosulfonate 41.5g / L, urea 1g / L, sodium dodecylbenzenesulfonate 1.5 g / L, 60% hydrogen peroxide 14g / L, hydrogen peroxide stabilizer 5g / L, treat in a water bath at 30°C for 2min, the bath ratio is 20:1, then heat up in the water bath, the heating rate is 1°C / min, when the temperature rises to 70 After ℃, keep at this temperature for 40 minutes, and then the temperature of the water bath is lowered at a rate of 1.5 ℃ / min. When the temperature drops to 40 ℃, discharge the treated wastewater, re-inject clean water and rinse at room temperature for 10 minutes;

[0035] (2) Presetting: the chemical fiber filaments are preformed through a presetting machine. During the presetting process, the setting temperature is 160°C, the...

Embodiment 2

[0047] A high temperature and environment-friendly chemical fiber dyeing process, comprising the following steps:

[0048] (1) Pretreatment: Pretreatment of chemical fiber filaments, specifically with penetrating agent JFC 4-6g / L, chelating diffusion agent sodium lignosulfonate 1.5g / L, urea 1.5g / L, dodecylbenzene Sodium sulfonate 1g / L, 60% hydrogen peroxide 14g / L, hydrogen peroxide stabilizer 6g / L, treated in a water bath at 30°C for 3 minutes, the bath ratio is 20:1, the water bath is then heated up, the heating rate is 1°C / min, when the temperature After rising to 70°C, keep at this temperature for 40 minutes, and then lower the temperature of the water bath at a rate of 1.5°C / min. When the temperature drops to 40°C, discharge the treated wastewater, re-inject clean water and rinse at room temperature for 10 minutes;

[0049] (2) Presetting: the chemical fiber filaments are preformed through a presetting machine. During the presetting process, the setting temperature is 170°...

Embodiment 3

[0061] A high temperature and environment-friendly chemical fiber dyeing process, comprising the following steps:

[0062] (1) Pretreatment: Pretreatment of chemical fiber filaments, specifically with penetrating agent JFC5g / L, chelating diffusion agent sodium lignosulfonate 1.25g / L, urea 1.25g / L, sodium dodecylbenzenesulfonate 1.25g / L, 60% hydrogen peroxide 12g / L, hydrogen peroxide stabilizer 5.5g / L, treated in a 30°C water bath for 2.5min, the bath ratio is 20:1, the water bath is then heated up, the heating rate is 1°C / min, when the temperature After rising to 75°C, keep it at this temperature for 35 minutes, and then lower the temperature of the water bath at a rate of 1.5°C / min. When the temperature drops to 40°C, discharge the treated wastewater, re-inject clean water and rinse at room temperature for 10 minutes;

[0063] (2) Presetting: the chemical fiber filaments are preformed by a presetting machine. During the presetting process, the setting temperature is 165°C, th...

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Abstract

The invention relates to a high-temperature environmentally-friendly chemical dyeing technology. The technology comprises preprocessing, pre-setting, dyeing, water washing, soaping, dye fixation, softening, drying, setting and winding. A stepped heating dyeing method is adopted, and the heating and cooling rates and the dyeing time are strictly controlled, so dyeing of a fiber fabric has high fastness, the dyeing is uniform, and the dyeing has good stability; an anti-dyeing salt S is added in the dyeing process, so the destroy of potential aldehyde groups in cellulose molecules in chemical fiber filaments to a dye is greatly improved, thereby a dyed product has pure color light, the color difference of dyeing is avoided, and the reappearance and the stability of the dyeing are good. Chemical fiber filaments finally produced in the invention have the advantages of uniform dyeing, stability, strong recurrence, elasticity, softness and high dyeing fastness.

Description

【Technical field】 [0001] The invention relates to the field of chemical fibers, in particular to a high-temperature and environment-friendly chemical fiber dyeing process. 【Background technique】 [0002] Chemical fibers are fibers with textile properties that are made from natural polymer compounds or artificially synthesized polymer compounds through the processes of preparing spinning dope, spinning and post-treatment. It has the advantages of light resistance, wear resistance, easy washing and drying, no mildew and no moths. Widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation wires, medical sutures, tire cords and parachutes, etc. [0003] Dyeing is an important process in chemical fiber processing. There are two types of dyeing: high-temperature dyeing and low-temperature dyeing. Generally, the dyeing rate of high-temperature dyeing is relatively high, but there are still many defects in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/653D06P1/607D06P1/62D06P5/02D06P5/10D06P5/06D06P5/04D06P5/08D06M16/00D06L4/12D06L4/13D06L4/15
CPCD06P1/38D06L4/12D06L4/13D06L4/15D06M16/003D06P1/607D06P1/628D06P1/6533D06P5/02D06P5/04D06P5/06D06P5/08D06P5/10
Inventor 徐汉兴李协智
Owner ZHANGJIAGANG JINYI CHEM FIBER
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