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Bath dyeing and color fixing method of polyamide fabric

A nylon and fabric technology, applied in the field of nylon fabric one-bath dyeing-fixing, can solve the problems of inability to solve the problem of phenolic yellowing of white or light-colored nylon fabrics, the inability to solve the three-step process, the large amount of raw water used, and the like. Achieve the effect of saving washing water and time, saving energy and time, and small color difference

Pending Publication Date: 2020-02-07
PACIFIC (PANYU) TEXTILES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the fabric dyeing process generally adopts a three-step process of dyeing, washing, and color fixing. This process uses a large amount of raw material water and produces a lot of waste water, so the production cost is relatively high.
CN 103114469A discloses a production process of nylon-cotton acid dyeing in the same bath, using nylon-cotton interwoven gray cloth to carry out the steps of distributing, cold stacking, continuous unrolling, cylinder unwinding, dyeing, color fixing, spreading, shaping, inspection and packaging , but the same-bath dyeing in this method refers to the reactive dyeing of nylon and cotton fibers at one time, rather than simultaneous dyeing and color fixation, which cannot solve the problem of simplifying the three-step process
[0004] CN 103147304A discloses a high-density nylon fabric production process, including the following steps: unwinding, seaming → pre-desizing treatment → pre-setting → dyeing → color fixing → dehydration → opening width → post-finishing → calendering → inspection, code cloth , packaging, the production process is to add anti-yellowing agent and pH regulator in the pre-setting process for anti-yellowing treatment, and then dyeing, which cannot solve the problem of phenol yellowing of white or light-colored nylon fabrics, and there is no problem after dyeing. It shows that color fixation is carried out directly in the dyeing solution, which consumes a lot of water and results in high cost

Method used

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  • Bath dyeing and color fixing method of polyamide fabric

Examples

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Comparison scheme
Effect test

Embodiment 1

[0055] The present embodiment provides a kind of nylon fabric one-bath dyeing-fixation method, the process flow chart of described method is as follows figure 1 shown, including the following steps:

[0056] (1) After soaking the nylon fabric to be dyed at 40°C, the dyeing solution is added thereto. The composition of the dyeing solution includes acid dyes and auxiliary agents. The acid dye is added to the nylon fabric to be dyed at a uniform rate in a linear manner, and the addition time is controlled as 8min, the auxiliary agent is added at one time, and then the temperature is raised to 100℃ at a rate of 1.0℃ / min for 20min;

[0057] Among them, the amount of acid dye in the dyeing solution is 0.13% of the nylon fabric weight, respectively, the amount of acid yellow dye accounts for 0.1%, the amount of acid red dye accounts for 0.03%, and the amount of acid blue dye accounts for 0.01%; 2.5g / L, respectively softening agent concentration 1g / L in the bath, acid leveling agent ...

Embodiment 2

[0062] Present embodiment provides a kind of nylon fabric one-bath dyeing-fixation method, described method comprises the following steps:

[0063] (1) After the nylon fabric to be dyed is soaked at 50°C, the dyeing solution is added thereto. The composition of the dyeing solution includes acid dyes and auxiliary agents. The acid dye is added to the nylon fabric to be dyed at a uniform rate in a linear manner, and the addition time is controlled as For 20 minutes, the auxiliary agent is added at one time, and then the temperature is raised to 100°C at a rate of 1.5°C / min for dyeing for 25 minutes;

[0064] Among them, the amount of acid dye in the dyeing solution is 2.17% of the weight of the nylon fabric, and the amount of acid yellow dye accounts for 0.22%, the amount of acid red dye accounts for 0.45%, and the amount of acid blue dye accounts for 1.5%; the concentration of auxiliary agents in the dyeing solution 2.5g / L, respectively softening agent concentration 1g / L in the...

Embodiment 3

[0069] Present embodiment provides a kind of nylon fabric one-bath dyeing-fixation method, described method comprises the following steps:

[0070] (1) After the nylon fabric to be dyed is soaked at 60°C, the dyeing solution is added thereto. The composition of the dyeing solution includes acid dyes and auxiliary agents. The acid dye is added to the nylon fabric to be dyed at a uniform rate in a linear manner, and the addition time is controlled as For 40 minutes, the auxiliary agent is added at one time, and then the temperature is raised to 100°C at a rate of 1.5°C / min for dyeing for 30 minutes;

[0071] Among them, the amount of acid dye in the dyeing solution is 6.3% of the weight of the nylon fabric, the amount of acid yellow dye accounts for 0.8%, the amount of acid red dye accounts for 0.5%, the amount of acid blue dye accounts for 1.0%, and the amount of acid black dye accounts for 4.0%. The concentration of auxiliary agent in the dyeing liquor is 1.5g / L, respectively ...

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Abstract

The invention provides a bath dyeing and color fixing method of a polyamide fabric. The method includes the steps: adding staining fluid into the polyamide fabric to be dyed, heating mixture at constant speed to reach the temperature of 80-100 DEG C to dry the polyamide fabric to be dyed; cooling the mixture to reach the temperature of 50-75 DEG C after dyeing to fix a color, and adding a color fixing agent in the color fixing process to obtain the dyed polyamide fabric. The staining fluid comprises acid dyes and additives. According to the method, dyeing and color fixing in the dyeing processof the fabric are synchronously implemented, operation processes are simplified, dyeing energy consumption is reduced, dyeing time is saved, knitted fabric can be uniformly dyed by a dyeing and colorfixing process in the method, fastness effects are good, color difference is less, and colors are stable.

Description

technical field [0001] The invention belongs to the technical field of lay-up printing and dyeing, and relates to a one-bath dyeing-fixing method for nylon fabrics. Background technique [0002] With the increasingly severe environmental problems, countries are paying more and more attention to environmental protection, so the requirements for green production, energy saving and consumption reduction of production enterprises are also increasing. For the highly polluting printing and dyeing industry, energy saving and emission reduction are the consistent pursuit, and water, electricity, and steam have always been the most important energy elements. By improving the production process, the consumption of raw materials and energy can be reduced, thereby reducing sewage Emissions are an important way. [0003] At present, the fabric dyeing process generally adopts a three-step process of dyeing, washing, and color fixing. This process uses a large amount of raw material water...

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): D06P1/39D06P1/44D06P3/24D06P5/02
CPCD06P1/39D06P1/445D06P3/241D06P5/02
Inventor 王思捷张贵邓昱万俊彪李成炳李江露皮建兵康小战王美佳
Owner PACIFIC (PANYU) TEXTILES LTD