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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 paint relies on the adhesive to adhere the pigment particles to the surface of the fiber in the fabric, the interface fastness is weak, and the color paste film is easy to fall off

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
Effect test

Embodiment 1

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

[0039] S1, pretreatment of high-performance fibers: soak meta-aramid high-performance fibers in N, N-dimethylacetamide (DMAc), 3% LiCl, and 3% pigments by mass ratio: 96% Red 101 colored nano-particles in the dye solution for 75s, then take it out, dry it with filter paper, and control the liquid-carrying rate of the high-performance fiber after treatment to 100%;

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

[0041] figure 1 It is the scann...

Embodiment 2-3

[0043] Embodiment 2-3 provides a method for dyeing high-performance fibers in seconds with a liquid film. Compared with Embodiment 1, the difference is that the mass ratio of each component in the dyeing solution described in step S1 is changed, except for the above differences , other operations are the same, and will not be repeated here; the specific experimental conditions, parameters 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 dosage ratio of each component in the dyeing solution in the pretreatment process of high-performance fibers will have a significant impact on the dyeing depth of high-performance fibers. Comparing Examples 1-2 and Example 3 The results show that the present invention achieves 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 cooperates with Li...

Embodiment 4-10

[0047] Embodiment 4-10 provides a method for liquid film instant dyeing of high-performance fibers. Compared with Embodiment 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 and will not be repeated here; the specific experimental conditions, parameters and test results are shown in the table below.

[0048] Example temperature(℃) time(s) K / S value 4 150 15 10.5 5 165 15 13.2 6 250 15 9.8 7 260 15 7.5 8 200 1 5.6 9 200 30 10.3 10 200 35 10.6

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

[0050] Comparing the results of Example 1 and Examples 8-10, it can be seen that with ...

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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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