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Dyeing process of nylon fiber

A nylon fiber and process technology, applied in the field of nylon fiber dyeing process, can solve the problems of poor color development or dye depth, poor dyeing effect, low dyeing fastness, etc., and achieves less pollution, superior dyeing effect, and dyeing effect. Good results

Inactive Publication Date: 2015-06-17
袁英英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the nature of its own fiber, nylon fiber has fast dyeing speed, poor level dyeing, poor color rendering or dyeing depth, and low dyeing fastness.
Take a single type of dye and its dyeing effect is very poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of dyeing process of nylon fiber, comprises the following steps:

[0038] (1) Pretreatment: Pretreatment of nylon fibers, specifically: use urea 1g / L, phosphorus-free neutral deoiling spirit TF-104M 4.5 g / L, sodium dodecylbenzenesulfonate 1 g / L, 60% hydrogen peroxide 2 g / L, oxidative desizing agent OS 0.8 g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up, the heating rate is 2.5°C / min, when the temperature After rising to 90°C, keep at this temperature for 30-40min, and then the temperature of the water bath is lowered at a rate of 1.5°C / min. When the temperature drops to 60°C, discharge the treated waste water, and then re-inject clean water to rinse at room temperature until the lotion is neutral, and finally dry;

[0039] (2) Pre-setting: Pre-setting the nylon fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 160°C, the speed is 20m / min, and the overfeed is...

Embodiment 2

[0052] A kind of dyeing process of nylon fiber, comprises the following steps:

[0053] (1) Pretreatment: Pretreatment of nylon fibers, specifically: urea 1.2g / L, phosphorus-free neutral deoiling spirit TF-104M 5 g / L, sodium dodecylbenzenesulfonate 1.2 g / L , 60% hydrogen peroxide 2.5 g / L, oxidative desizing agent OS 1g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up, the heating rate is 2.5°C / min, when the temperature After rising to 90°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 60°C, discharge the treated wastewater, and then re-inject clean water to rinse at room temperature until washed. The liquid is neutral, and finally dried;

[0054] (2) Pre-setting: Pre-setting the nylon fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 165°C, the speed is 25m / min, and the over...

Embodiment 3

[0067] A kind of dyeing process of nylon fiber, comprises the following steps:

[0068] (1) Pretreatment: Pretreatment of nylon fibers, specifically: use urea 1.5g / L, phosphorus-free neutral degreasing spirit TF-104M 5.5 g / L, sodium dodecylbenzenesulfonate 1.5 g / L , 60% hydrogen peroxide 3 g / L, oxidative desizing agent OS 1.2 g / L, treated in a 30°C water bath for 2-3 min, the bath ratio was 20:1, and then heated up in the water bath at a rate of 2.5°C / min. After the temperature rises to 90°C, it is kept at this temperature for 40 minutes, and then the temperature of the water bath is lowered at a rate of 1.5°C / min. When the temperature drops to 60°C, the treated wastewater is discharged, and then re-injected with clean water and rinsed at room temperature until The lotion is neutral and finally dried;

[0069] (2) Pre-setting: Pre-setting the nylon fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 170°C, the speed is 30m / min, and ...

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Abstract

The invention provides a dyeing process of nylon fiber. The dyeing process comprises the following steps: pretreatment, presetting, dyeing soaping, color fixing, after finishing, drying, setting, calendering and winding. The dyeing process provided by the invention has the advantages that in the dyeing procedure, disperse dyes and acidic dyes are used for carrying out dyeing according to the own property of the nylon fiber, so that the dyeing effect is improved; the soaping and color-fixing processes are added, so that the dyeing firmness is good; in the color fixing process, environment-friendly formaldehyde-free TCD-R is adopted, and the fiber is dried in a step-by-step manner after color fixation, so that the firmness of the fiber is greatly improved; the after-finishing process is added, so that the color firmness and softness of the fabrics are improved and increased, the roughness of the fabrics is reduced, and further the fabrics are fluffy and elastic.

Description

technical field [0001] The invention relates to a dyeing process of nylon fibers. Background technique [0002] Fibers are divided into chemical fibers and natural fibers. Chemical fibers are fibers with textile properties that are made from natural polymers or artificially synthesized polymers 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] Nylon fiber, scientifically named polyamide fiber, is a kind of chemical fiber, because of its excellent wear resistance, cold resistance, breathability and aging resistance. Therefore, it is widely used in the textile field. Dyeing is an important treatment process of chemical fiber. Various dyes are u...

Claims

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Application Information

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IPC IPC(8): D06P3/26D06P3/24D06P1/653D06P5/10D06P5/04D06P5/08D06M16/00D06M13/46D06L1/14D06L3/02D06M101/34D06L4/12D06L4/13
Inventor 顾晓平
Owner 袁英英
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