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Method for improving dyeing performance of aramid fiber cloth

A technology for the dyeing performance of aramid fiber cloth, applied in the direction of dyeing method, fiber type, fiber treatment, etc., can solve the problems such as difficult dyeing of aramid fiber cloth, achieve enhanced binding fastness, simple process, and increase dye uptake rate Effect

Pending Publication Date: 2021-06-15
THE QUARTERMASTER RES INST OF THE GENERAL LOGISTICS DEPT OF THE CPLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the dyeing performance of aramid fiber cloth, which combines plasma modification and resin modification, and enhances the bonding between aramid fiber and resin by introducing polar groups and rough surfaces through plasma treatment. The interface bonding strength overcomes the defects such as difficult dyeing of aramid fiber cloth in the prior art

Method used

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  • Method for improving dyeing performance of aramid fiber cloth
  • Method for improving dyeing performance of aramid fiber cloth
  • Method for improving dyeing performance of aramid fiber cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1, the dyeing property improvement of aramid fiber cloth

[0061] S1: Arrange the aramid fiber 1313 fiber in the oxygen plasma treatment apparatus, adjust the plasma treatment power to 300W, and the treatment time is 20 minutes to obtain the aramid fiber cloth after oxygen plasma treatment, and its scanning electron microscope photo is as follows figure 1 shown.

[0062] S2: Weigh the resin (polyurethane) and additives according to the mass ratio of 20:4, and then disperse them in the solvent DMF (N,N-dimethylformamide) (the amount is 8ml / g polyurethane), at 1000r / min Disperse at a high speed for 10 minutes to obtain a resin slurry, and scrape the resin slurry on the plasma-modified aramid cloth with a scraping method, and the dosage is 6g / m 2 , to obtain the final modified aramid fabric, and its scanning electron microscope photos are as follows figure 2 shown.

[0063] Among them, the additives include flame retardant, dispersant, defoamer, leveling age...

Embodiment 2

[0067] Embodiment 2, the dyeing performance improvement of aramid fiber cloth

[0068] The steps are the same as in Example 1, except that the polyurethane used in the resin modification treatment is replaced with epoxy resin (LANXESS S10 series resin).

Embodiment 3

[0069] Embodiment 3, dyeing of aramid fiber cloth

[0070] Aramid 1313 fiber cloth without any treatment, aramid 1313 fiber cloth treated with oxygen plasma in Example 1 (step S1), aramid 1313 fiber cloth modified in Example 1 and modified in Example 2 The final aramid 1313 fiber cloth is dyed, and the dyeing steps are as follows:

[0071] S1: Weigh 30 parts of deionized water, and add high-temperature disperse leveling agent (HT424 leveling agent from Huashen Company) at a concentration of 1g / L, stir evenly, add a small amount of acetic acid to adjust the pH value to about 5, and then Weigh 1.5 parts of quality disperse dyes (as shown in Table 1) and add therein, and stir evenly to obtain a dye solution for exhaust dyeing.

[0072] S2: Weigh 2 parts of the modified and unmodified aramid fabrics with a balance, immerse all the aramid fabrics in the dye solution prepared in S1 at room temperature, raise the temperature until the dye solution boils, and keep it for 90 minutes, ...

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Abstract

The invention discloses a method for improving the dyeing performance of aramid fiber cloth. The method for improving the dyeing performance of the aramid fiber cloth comprises the following steps of S1, carrying out plasma treatment on the aramid fiber cloth; and S2, blade-coating the aramid fiber cloth modified in the step S1 with resin slurry to improve the dyeing performance of the aramid fiber cloth, wherein the plasma treatment is oxygen plasma treatment or nitrogen plasma treatment. The method is suitable for dyeing modification of domestic para-aramid and meta-aramid fiber cloth (aramid fiber 1313 and aramid fiber 1414) and foreign imported aramid fiber cloth, and the dyed aramid fiber cloth can be applied to manufacturing of military camouflage protection, weapon covering cloth, special fabrics and clothes. According to the method for improving the dyeing performance of the aramid fiber cloth, the flame-retardant and high-strength performance of the aramid fiber cloth can be kept, the dye-uptake rate of the aramid fiber cloth is greatly increased, and the binding strength between dye and the aramid fiber cloth and the soaping resistance of the dyed cloth are enhanced.

Description

technical field [0001] The invention relates to a method for improving the dyeing performance of aramid fiber cloth, belonging to the technical field of fiber material preparation. Background technique [0002] Aromatic polyamide fiber (aramid for short) is a synthetic organic high-performance fiber with low density, high mechanical strength, high chemical stability, and excellent properties such as heat resistance, flame retardancy, and insulation, making it widely used It is used in aerospace, fire protection, high-strength ropes, national defense and military materials, and some special clothing fields. From a structural point of view, the aramid molecular chain contains a large number of aromatic rings and amide bonds, so its molecular chain shows strong rigidity and a large hydrogen bond force between molecules, which makes the aramid fiber structure tight and the surface Smooth, with high crystallinity and glass transition temperature, these properties also lead to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/12D06N3/00D06M10/00D06P3/24D06M101/36
CPCD06N3/14D06N3/142D06N3/12D06N3/0059D06N3/0088D06N3/0015D06M10/00D06P3/24D06N2209/1685D06M2101/36
Inventor 郭亚飞梁高勇郝新敏王焰方军
Owner THE QUARTERMASTER RES INST OF THE GENERAL LOGISTICS DEPT OF THE CPLA
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