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Dyeing technology of chemical fibers

A chemical fiber and process technology, applied in the field of chemical fiber dyeing process, can solve the problems of low dye uptake, more waste water, poor uniformity, etc., and achieve the effects of reducing treatment costs, reducing costs, and reducing consumption.

Inactive Publication Date: 2017-08-18
马鞍山市永运家纺有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dyeing is an important treatment process of chemical fiber. At present, the dyeing process of chemical fiber has the problems of low dyeing rate, poor dyeing stability, reproducibility, uniformity and low dye utilization rate. At the same time, the dyeing process consumes a lot of energy, Many problems such as waste water generation

Method used

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  • Dyeing technology of chemical fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of chemical fiber dyeing process, comprises the following steps:

[0031] (1) Pretreatment: Add chemical fiber, D8-808 degreaser, urea, 30% H to the dyeing machine 2 o 2 , sodium lauryl alcohol polyoxyethylene ether sulfate, ethylene glycol monobutyl ether, 122 defoamer and EDTA tetrasodium salt, heat up to 100°C and keep stirring for 1 hour, then cool down to 45°C, discharge the waste solution, and then Add water, stir and wash twice, then discharge;

[0032] (2) Purification treatment: add 10% sodium hydroxide solution to the system, heat up to 90°C and stir for 40 minutes, drain the waste liquid, add water to wash until the discharged waste liquid is neutral;

[0033] (3) Pre-setting: the pre-treated chemical fiber is pre-formed in low-temperature water, the temperature is controlled at 155 ° C, and the overfeed is 25%;

[0034] (4) Dyeing: Add softened clear water, sodium sulfate, fatty alcohol polyoxyethylene ether, penetrant JFC, disperse dyes in the dye...

Embodiment 2

[0040] A kind of chemical fiber dyeing process, comprises the following steps:

[0041] (1) Pretreatment: Add chemical fiber, D8-808 degreaser, urea, 35% H to the dyeing machine 2 o 2 , sodium lauryl alcohol polyoxyethylene ether sulfate, ethylene glycol monobutyl ether, 122 defoamer and EDTA tetrasodium salt, heat up to 110°C and keep stirring for 1 hour, then cool down to 45°C, discharge the waste solution, and then Add water, stir and wash twice, then discharge;

[0042] (2) Purification treatment: add 10% sodium hydroxide solution to the system, heat up to 95°C and stir for 20 minutes, drain the waste liquid, add water to wash until the discharged waste liquid is neutral;

[0043] (3) Pre-setting: Pre-setting the pre-treated chemical fiber in low-temperature water, controlling the temperature at 160°C, and overfeeding by 20%;

[0044](4) Dyeing: add softened clear water, sodium sulfate, fatty alcohol polyoxyethylene ether, penetrant JFC, disperse dyes in the dyeing mach...

Embodiment 3

[0050] A kind of chemical fiber dyeing process, comprises the following steps:

[0051] (1) Pretreatment: Add chemical fiber, D8-808 degreaser, urea, 25% H to the dyeing machine 2 o 2 , sodium lauryl alcohol polyoxyethylene ether sulfate, ethylene glycol monobutyl ether, 122 defoamer and EDTA tetrasodium salt, heat up to 90°C and keep stirring for 1 hour, then cool down to 45°C, discharge the waste solution, and then Add water, stir and wash twice, then discharge;

[0052] (2) Purification treatment: add 10% sodium hydroxide solution to the system, heat up to 80°C and stir for 40 minutes, drain the waste liquid, add water to wash until the discharged waste liquid is neutral;

[0053] (3) Pre-forming: the pre-treated chemical fiber is pre-formed in low-temperature water, the temperature is controlled at 150°C, and the overfeed is 30%;

[0054] (4) Dyeing: Add softened clear water, sodium sulfate, fatty alcohol polyoxyethylene ether, penetrant JFC, disperse dyes in the dyeing...

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Abstract

The invention provides a dyeing technology of chemical fibers and relates to the field of dyeing of chemical fibers. A dyed chemical fiber product can be obtained through steps of pretreatment, purification treatment, presetting, dyeing, reduction and soaping, fixation and smooth setting. Oil solutions, stained oil dirt, dust, pigments and the like added in chemical fiber spinning and weaving processes are removed during pretreatment, the purification treatment is added to the technology, staged heating is adopted in the dyeing process, a leveling agent and a penetrating agent are added, a fixation foam liquid is sprayed for fixation, so that the dye utilization rate in the production process is high, the produced chemical fibers have full color, high color fastness and good uniformity, meanwhile, energy consumption is low, and little wastewater is produced.

Description

technical field [0001] The invention relates to the field of chemical fiber dyeing, in particular to a chemical fiber dyeing process. Background technique [0002] Synthetic fiber is a chemical fiber made by artificially synthesized linear polymer with suitable molecular weight and solubility (or meltability) through spinning and post-processing. Such polymers with fiber-forming properties are usually referred to as fiber-forming polymers. Compared with natural fibers and man-made fibers, the raw materials of synthetic fibers are made by artificial synthesis methods, and the production is not restricted by natural conditions. In addition to the general superior properties of chemical fibers, such as high strength, light weight, easy washing and quick drying, good elasticity, and no fear of mould, different types of synthetic fibers have certain unique properties. At present, it is widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, rop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/44D06P1/649D06P1/673D06P1/613D06P1/651D06P1/642D06P5/08
CPCD06P1/16D06P1/445D06P1/6133D06P1/642D06P1/6497D06P1/65131D06P1/673D06P1/6735D06P5/08
Inventor 卫必兵
Owner 马鞍山市永运家纺有限公司
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