Method for dyeing high-performance fiber with liquid membrane in seconds

A high-performance fiber and liquid film technology, which is applied in the field of textile printing and dyeing, can solve the problems of weak interface fastness, easy peeling off of color paste film, and difficulty in dyeing bright colors of high-performance fabrics, etc., to achieve increased roughness and increased porosity Effect

Active Publication Date: 2020-08-18
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The downside is that high temperature conditions can destroy the dye structure, thus making it difficult to dye bright colors on high performance fabrics
Its shortcoming is that the

Method used

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  • Method for dyeing high-performance fiber with liquid membrane in seconds
  • Method for dyeing high-performance fiber with liquid membrane in seconds
  • Method for dyeing high-performance fiber with liquid membrane in seconds

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0037] Example 1

[0038] A method for dyeing high-performance fibers with liquid membrane in seconds, including the following steps:

[0039] S1. Pre-treatment of high-performance fiber: soak the high-performance meta-aramid fiber in 96% N,N-dimethylacetamide (DMAc), 3% LiCl, and 3% pigment. Red 101 colored nano-particles in the dye solution for 75 seconds, then take it out, blot dry with filter paper, and control the liquid carrying rate of the treated high-performance fiber to 100%;

[0040] S2. High-temperature oil bath dyeing: Put the high-performance fiber pretreated in step S1 in methyl silicone oil at 200℃, take it out after high-temperature treatment for 15s, cool it, and wash it with ethanol, detergent, and water in turn, and then use it Ultrasonic washing with 50% ethanol aqueous solution for 10 minutes, and finally washing with running water, and then drying at 80°C to obtain meta-aramid with liquid film second dyeing.

[0041] figure 1 This is the scanning electron micro...

Example Embodiment

[0042] Example 2-3

[0043] Example 2-3 provides a method for dyeing high-performance fibers with liquid membrane in seconds. Compared with Example 1, the difference is that the mass ratio of each component in the dyeing solution in step S1 is changed, except for the above difference , Other operations are the same, so I won’t repeat them here; the specific experimental conditions and test results are shown in the table below.

[0044]

[0045] Comparing the results of Examples 1 to 3, it can be seen that changing the amount ratio of each component in the dye liquor during the pretreatment of high-performance fibers will have a significant impact on the dyeing depth of the high-performance fibers. Comparative Examples 1-2 and Example 3 As a result, it can be seen that the present invention realizes the rapid dyeing of high-performance fibers through the action of high-temperature and high-pressure steam in the process of high-temperature oil bath treatment and cooperation with LiCl...

Example Embodiment

[0046] Example 4-10

[0047] Examples 4-10 provide a method for dyeing high-performance fibers with liquid film in seconds. Compared with Example 1, the difference is that the high-temperature oil bath treatment temperature and frying time in step S2 are changed. In addition to the above differences, other The operations are the same, so I won't repeat them here; the specific experimental conditions and test results are shown in the following table.

[0048] Example Temperature(℃) Time(s) K / S value 41501510.5 51651513.2 6250159.8 7260157.5 820015.6 92003010.3 102003510.6

[0049] Comparing the results of Example 1 and Examples 4-7, it can be seen that as the high-temperature oil bath treatment temperature in step S2 increases, the dyeing depth of the high-performance fiber first increases and then decreases.

[0050] Comparing the results of Example 1 and Examples 8-10, it can be seen that with the extension of the high-temperature oil bath treatment time in step S2, the dyeing d...

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Abstract

The invention discloses a method for dyeing a high-performance fiber with a liquid membrane in seconds. Firstly, the high-performance fiber is immersed in a dye solution configured by N,N-dimethylacetamide, LiCl and colored nanoparticles; a pretreated high-performance fiber is subjected to a high-temperature oil bath treatment; through the smaller molecular structures of N,N-dimethylacetamide andthe strong electronegativity of the amide carbonyl group, the fiber surface roughness and porosity in the high-performance fiber can be effectively increased, and more colored particles can be easilyabsorbed; at the same time, the high-temperature and high-pressure steam in an oil bath dyeing process can produce a certain internal and external pressure difference in pores of the high-performancefiber surface; and the interaction of N,N-dimethylacetamide and LiCl further inhaled into the inner layer of high-performance fiber, so as to realize fast dyeing of high-performance fiber. The printing and dyeing efficiency and fixing rate of the high-performance fiber are effectively improved, and the application of the high-performance fiber is easily expanded.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a method for quickly dyeing high-performance fibers with a liquid film. Background technique [0002] With the development of social economy, the application of high-performance fibers has become more and more extensive. Due to its special structure and performance, it has excellent properties that conventional fibers do not have, so it is widely used in aerospace, protective However, the poor dyeability of high-performance fibers has seriously affected its application development. Therefore, it is of great significance to improve the dyeing performance of high-performance fibers. [0003] Common high-performance fibers mainly include meta-aramid fiber, para-aramid fiber, polyimide fiber and polyarylate fiber. So far, many scholars at home and abroad have done a lot of research on the dyeing methods of the above-mentioned high-performance fibers, such as pla...

Claims

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Application Information

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IPC IPC(8): D06P1/673D06P5/20D06P1/92D06P3/04D06P3/02D06P3/52
CPCD06P1/67358D06P5/2066D06P1/928D06P3/04D06P3/02D06P3/52D06P2001/906
Inventor 徐卫林夏良君盛丹付专周思婕张春华王运利
Owner WUHAN TEXTILE UNIV
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