Staining method for aramid fiber

A kind of technology of aramid fiber and dyeing method, applied in the direction of dyeing method, fiber type, fiber treatment, etc., can solve the problems of poor dyeing effect, low dyeing rate of disperse dyes, etc., achieve enhanced washability, enhanced dyeing effect and efficiency , pure color effect

Active Publication Date: 2015-06-10
SUZHOU ZHILVE INTELLECTUAL PROPERTY OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dyeing is an important treatment process for chemical fibers. Aramid fiber is usually dyed with disperse dyes. However, due to the nature of aramid fiber itself, the dyeing rate of disperse dyes is low and the dyeing effect is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of dyeing method of aramid fiber, comprises the following steps:

[0037] (1) Pretreatment: Pretreatment of aramid fibers, specifically: use urea 1g / L, phosphorus-free neutral deoiling spirit TF-104M 4.5 g / L, sodium dodecylbenzenesulfonate 1 g / L L, 60% hydrogen peroxide 2 g / L, treated in 30°C water bath for 2-3 min, the bath ratio is 20:1, the water bath is then heated up at a rate of 2°C / min, when the temperature rises to 90°C, Keep at high temperature for 30 minutes, then lower the temperature of the water bath at a rate of 1°C / min. When the temperature drops to 60°C, discharge the treated wastewater, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0038] (2) Pre-setting: Pre-setting the aramid 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 5%;

[0039] (3) Dyeing: Dyeing the aramid fiber after the pre-...

Embodiment 2

[0050] A kind of dyeing method of aramid fiber, comprises the following steps:

[0051] (1) Pretreatment: Pretreatment of aramid fibers, specifically: urea 1.2g / L, phosphorus-free neutral deoiling spirit TF-104M 5 g / L, sodium dodecylbenzenesulfonate 1.2 g / L L, 60% hydrogen peroxide 2.5 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 at a rate of 2.5°C / min, when the temperature rises to 90°C, the Keep at high temperature for 35 minutes, 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 waste water, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0052] (2) Pre-setting: Pre-setting the aramid fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 165°C, the speed is 25m / min, and the overfeed is 8%;

[0053] (3) Dyeing: Dyeing the aramid fiber...

Embodiment 3

[0064] A kind of dyeing method of aramid fiber, comprises the following steps:

[0065] (1) Pretreatment: Pretreatment of aramid fiber, specifically: urea 1.5g / L, phosphorus-free neutral degreasing spirit TF-104M 5.5 g / L, sodium dodecylbenzenesulfonate 1.5 g / L L, 60% hydrogen peroxide 3 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 at a rate of 3°C / min, when the temperature rises to 90°C, Keep at high temperature for 40 minutes, then lower the temperature of the water bath at a rate of 2°C / min. When the temperature drops to 60°C, discharge the treated waste water, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0066] (2) Pre-setting: Pre-setting the aramid fiber through a pre-setting machine. During the pre-setting process, the setting temperature is 170°C, the speed is 30m / min, and the overfeed is 10%;

[0067] (3) Dyeing: Dyeing the aramid fiber after...

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PUM

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Abstract

The invention provides a staining method for aramid fiber. The staining method comprises the steps of preprocessing, preshaping, staining, reduction clearing, color fixing, soft processing, drying, shaping, calendaring and rolling. According to the staining method, DEET is added in to serve as a dye carrier, and the staining effect and efficiency are improved; meanwhile, substitute alkali is adopted to replace a conventional soda substance, and not only is the usage amount decreased, but also the color fixing effect is enhanced to enable the washability of the aramid fiber is further enhanced; the reduction clearing and color fixing processes are added, and therefore the staining fastness is good; green and environmental-friendly non-formaldehyde TCD-R is adopted in the color fixing process, the fiber is dried step by step after color fixing, and therefore the firmness of the fiber is greatly improved; the soft processing process is added, the color fastness and softness of fabric are improved, the roughness of the fabric is reduced, and therefore the fabric is fluffy and rich in elasticity.

Description

technical field [0001] The invention relates to the field of chemical fibers, in particular to a method for dyeing aramid fibers. 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] Aramid fiber [mainly divided into para-aramid (MPIA) and meta-aramid (PPTA)] has the advantages of high strength and high modulus, high temperature resistance, excellent chemical resistance and flame retardancy, and is widely used in fire protection and aerospace and other fields. Dyeing is an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/673D06P3/26D06P5/10D06P5/08D06M16/00D06M13/46D06M13/432D06M13/256D06M11/50D06L1/16D06B3/04D06B15/00D02J1/22D02J13/00D06B3/10D06C7/02D06M101/36
Inventor 陈志清
Owner SUZHOU ZHILVE INTELLECTUAL PROPERTY OPERATION CO LTD
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