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High-performance fiber, yarn or fabric assisted by dopamine dyeing and its preparation method

A high-performance fiber and auxiliary dyeing technology, which is applied in the field of textile fiber dyeing, can solve the problems of single color of high-performance fiber and difficulty in dyeing, and achieve the effects of high color fastness, strong processing universality, and pollution reduction

Active Publication Date: 2021-10-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-performance fiber, yarn or fabric assisted by dopamine dyeing and its preparation method in view of the defects of single color and difficult dyeing of the current high-performance fiber

Method used

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  • High-performance fiber, yarn or fabric assisted by dopamine dyeing and its preparation method

Examples

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Effect test

Embodiment 1

[0028] A dopamine-assisted dyed glass fiber yarn is obtained by dyeing the glass fiber yarn through a dopamine Tris solution treatment bath for modification.

[0029] The preparation method of described glass fiber yarn, concrete steps are as follows:

[0030] The glass fiber yarn was washed three times through an acetone pretreatment bath to remove surface impurities, and then dried at room temperature (25°C) for 1 h; a Tris-HCl (Tris-HCl) buffer solution with a concentration of 10 mM was prepared, Adjust the pH value to 8.5, add dopamine hydrochloride, stir to dissolve, and prepare a Tris solution treatment bath of 1.2g / L dopamine; treat the glass fiber yarn with a solid-to-liquid ratio of 1:2 and place it in a Tris solution of dopamine at 30°C bath, treated for 30 minutes, washed in 3 water baths, and dried at 60°C for 20 minutes; prepared a rhodamine B fluorescent dye dyeing bath with a concentration of 1% (owf), and a color-fixing agent Na 2 CO 3 The total dosage is 15g...

Embodiment 2

[0033] A dopamine-aided para-aramid fiber fabric is obtained by dyeing the para-aramid fiber fabric through a dopamine Tris solution treatment bath for modification.

[0034] The preparation method of the para-aramid fiber fabric assisted by dopamine dyeing, the specific steps are as follows:

[0035] The para-aramid fiber fabric was pre-cleaned with an acetone bath, washed twice to remove surface impurities, and then dried at room temperature (25°C) for 30 minutes; the concentration was prepared as 7mM Tris-HCl buffer solution, adjust the pH value to 10, add dopamine hydrochloride, stir and dissolve, and prepare a Tris solution treatment bath of 0.8g / L dopamine; In the Tris solution treatment bath, it was treated for 8 minutes, washed with water three times, and dried at 70°C for 15 minutes; the reactive brilliant red X-3B reactive dye dyeing bath with a concentration of 1% (owf) was prepared, and the one-bath two-step method was used for dipping. Para-aramid fiber fabric, t...

Embodiment 3

[0038] The invention relates to an ultra-high molecular weight polyethylene (UHMWPE) multifilament assisted by dopamine dyeing, which is obtained by modifying the surface of the UHMWPE multifilament with polydopamine and then dyeing it.

[0039] The preparation method of the UHMWPE multifilament assisted dyeing of dopamine is characterized in that, comprises the following steps:

[0040] The UHMWPE multifilament was pre-cleaned in an acetone bath, washed twice, and dried at 50°C for 10 minutes; a buffer solution with a concentration of 15mM Tris-HCl was prepared, the pH value was adjusted to 9, and dopamine hydrochloride was added , stir and dissolve, and prepare a Tris solution treatment bath of 1.8g / L dopamine; put the UHMWPE multifilament in the Tris solution treatment bath of dopamine at 40°C with a solid-to-liquid ratio of 1:5, treat for 60min, wash with water three times, and Dry at 60°C for 15 minutes; prepare a reactive dyeing bath of reactive brilliant red X-3B reacti...

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Abstract

The invention mainly aims at the defects of single color and difficult dyeing of the current high-performance fibers, and provides a dopamine-assisted dyeing high-performance fiber, yarn or fabric and a preparation method thereof. The method includes: placing the cleaned high-performance fibers, yarns or fabrics in a dopamine-containing Tris solution treatment bath, washing and drying after 5-120 minutes of treatment, and then performing dyeing treatment to obtain dopamine-assisted dyeing high-performance fibers , yarn or fabric. The method has the advantages of simple process, safety and high efficiency, and can significantly improve the dyeing performance of the fiber without damaging the mechanical properties of the fiber body, has strong universality to dyes, and can promote the development of colored high-performance fiber products.

Description

technical field [0001] The invention belongs to the technical field of textile fiber dyeing, in particular to a high-performance fiber, yarn or fabric assisted by dopamine dyeing and a preparation method thereof. Background technique [0002] High-performance fibers have excellent properties that are incomparable to natural fibers and synthetic fibers. They are used as reinforcing materials to combine with resins to make composite materials. They have the characteristics of high strength and high modulus, light weight, corrosion resistance, and easy processing. They have been widely used in aerospace. , marine, transportation, communications, construction, sports equipment, military applications and other fields. However, due to its compact molecular structure, high degree of crystallinity and orientation, and few surface active groups, it is very difficult to dye high-performance fibers. The need is also becoming more urgent. [0003] At present, there are two main types ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/44D06P1/52
CPCD06P1/445D06P1/5264
Inventor 蒋秋冉范伟思张宇宸陈露刘万双邱夷平
Owner DONGHUA UNIV
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