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Method for dyeing seaweed fiber with polycarboxylic acid dye

A seaweed fiber and polycarboxylic acid technology, applied in the field of fiber dyeing, can solve the problems of large loss of strength, low coloring rate, and few types of dyes, etc., and achieve the effect of bright color, uniform color and mild conditions

Active Publication Date: 2020-08-11
SHANDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the dyeing process, there are still defects such as low coloring rate, few types of dyes, large loss of strength and complicated dyeing process.

Method used

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  • Method for dyeing seaweed fiber with polycarboxylic acid dye
  • Method for dyeing seaweed fiber with polycarboxylic acid dye
  • Method for dyeing seaweed fiber with polycarboxylic acid dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for dyeing seaweed fibers with polycarboxylic acid dyes is to use metal ions as connectors, and form complex bonds with metal ions and seaweed fibers and polycarboxylic acid dyes to realize the effect of polycarboxylic acid dyes on seaweed fibers. Stained. The structural formula of the polycarboxylic acid dye DY-1 is:

[0034]

[0035] where: n 1 =10-15, n 2 =10-15, n=80-100.

[0036] The method of described polycarboxylic acid dye dyeing seaweed fiber is as follows:

[0037] Dissolve 0.5g of the polycarboxylic acid dye in 400g of water, add 1% hydrochloric acid solution to adjust the pH value to 4.5, then add 0.3g of tin sulfate, mix well to obtain a dye solution; then add 30g of seaweed fiber to the dye solution at 60°C After dyeing, take out the seaweed fiber and soak it in 4‰ neutral soap solution at 95°C for 10 minutes. Finally, wash the seaweed fiber fully and dry it in the air.

Embodiment 2

[0039] The method for dyeing seaweed fibers with polycarboxylic acid dyes is to use metal ions as connectors, and form complex bonds with metal ions and seaweed fibers and polycarboxylic acid dyes to realize the effect of polycarboxylic acid dyes on seaweed fibers. Stained. The structural formula of the polycarboxylic acid dye DY-2 is:

[0040]

[0041] where: n 1 =5-8, n 2 =5-8, n=100-150.

[0042] The method of described polycarboxylic acid dye dyeing seaweed fiber is as follows:

[0043] Dissolve 1.5g of the polycarboxylic acid dye in 600g of water, add 1% ammonia solution to adjust the pH value to 6.5, then add 1g of chromium sulfate, mix well to obtain a dye solution; then add 30g of seaweed fiber to the dye solution at 70°C Dyeing for 40 minutes. After dyeing, take out the seaweed fiber, soak it in 2‰ neutral soap solution at 90°C for 15 minutes, and finally wash the seaweed fiber fully and dry it in the air.

Embodiment 3

[0045] The method for dyeing seaweed fibers with polycarboxylic acid dyes is to use metal ions as connectors, and form complex bonds with metal ions and seaweed fibers and polycarboxylic acid dyes to realize the effect of polycarboxylic acid dyes on seaweed fibers. Stained. The structural formula of the polycarboxylic acid dye DY-3 is:

[0046]

[0047] where: n 1 =20-25, n 2 =20-25, n=400-500.

[0048] The method of described polycarboxylic acid dye dyeing seaweed fiber is as follows:

[0049] Dissolve 2g of the polycarboxylic acid dye in 500g of water, add 1% ammonia solution to adjust the pH to 7.0, then add 1.2g of copper chloride, mix well to obtain a dye solution; then add 30g of seaweed fiber to the dye solution at 80°C Dyeing for 50 minutes, after the dyeing, take out the seaweed fiber, soak it in 4‰ neutral soap solution and boil it at 92°C for 14 minutes, and finally wash the seaweed fiber fully and dry it in the air.

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Abstract

The invention belongs to the technical field of fiber dyeing, and in particular relates to a method for dyeing seaweed fiber with a polycarboxylic acid dye. The method for dyeing seaweed fibers with polycarboxylic acid dyes uses metal ions as connectors to form complex bonds with metal ions, seaweed fibers and polycarboxylic acid dyes, so as to realize the uptake of polycarboxylic acid dyes on seaweed fibers. Dyeing, the specific steps are dissolving polycarboxylic acid dyes in water, adjusting the pH value, adding inorganic metal salts to obtain a dye solution; then adding seaweed fibers to the dye solution for dyeing, soaping, washing, and drying. The seaweed fiber dyed by the invention has uniform color and bright color, which can fully meet the requirements of seaweed fiber dyeing and processing. In addition, the dyeing process of the present invention has the characteristics of simplicity, convenience, mild conditions and the use of traditional dyeing equipment, and is very suitable for industrial application.

Description

technical field [0001] The invention belongs to the technical field of fiber dyeing, and in particular relates to a method for dyeing seaweed fiber with a polycarboxylic acid dye. Background technique [0002] Seaweed fiber is a new type of biodegradable synthetic fiber, which is prepared by extracting sodium alginate from natural seaweed, after purification and processing, and then by wet spinning process. This type of fiber not only has the characteristics of moisture absorption, softness, heat preservation and biocompatibility of traditional natural fibers, but also has excellent flame retardancy, antistatic and antibacterial properties, so it has a wide range of industrial application prospects. [0003] Since the invention of seaweed fiber in 1944, although there have been a lot of research and industrial development at home and abroad, its main use is still concentrated in the non-textile and clothing field of medical dressings, masks and other products, and it cannot ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/36D06P1/673D06P3/64
CPCD06P1/36D06P1/67341D06P3/64
Inventor 黄昊飞李赵义孙亮姜兆辉傅忠君李玉超夏延致纪全
Owner SHANDONG UNIV OF TECH
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