Nylon fiber and protein powder overdyeing method

A technology of nylon fiber and protein powder, which is applied in the field of textile printing and dyeing, can solve the problems of nylon fiber being easily dyed, achieve excellent adsorption performance, avoid excessive concentration, and improve dyeing efficiency

Active Publication Date: 2021-02-23
WUHAN TEXTILE UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But above-mentioned staining method mostly adopts chemical reagent method to solve the problem
Therefore, in order to solve the problem of easily dyed flowers in the dyeing process of difficult-to-dyed high-performance nylon fibers, it is necessary to provide a nylon fiber dyeing method that has high dyeing efficiency and can improve the phenomenon of fiber dyeing.

Method used

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  • Nylon fiber and protein powder overdyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a kind of overdyeing method of high-strength nylon 66 fiber and wool powder:

[0045] S1, preparation of dye solution: according to a predetermined ratio, add insoluble vat blue BC to distilled water, and stir, then add sodium hydroxide and thiourea dioxide in sequence to obtain a leuco solution; heat the leuco solution to 90 ℃, stirring at a speed of 250r / min for 15 minutes, adding glacial acetic acid to adjust the pH value to 5-6 to obtain a leuco acid solution; finally adding carrier ethylene glycol phenyl ether to the leuco acid solution, and stirring to prepare Obtain vat dyeing liquor; In described vat dyeing liquor, the concentration of described vat blue BC is 10g / L, and the concentration of described sodium hydroxide is 10g / L, and the concentration of described thiourea dioxide is 10g / L, so The concentration of said ethylene glycol phenyl ether is 70g / L;

[0046] S2, over-dyeing: first put a predetermined proportion of wool powder into...

Embodiment 2

[0049] This embodiment provides a kind of overdyeing method of high-strength nylon 66 fiber and wool powder:

[0050] S1, preparation of dye solution: add insoluble vat blue BC to distilled water according to a predetermined ratio, and stir, then add sodium hydroxide and thiourea dioxide in sequence to obtain a leuco solution; heat the leuco solution to 40 ℃, stirring at a speed of 150r / min for 5 minutes, adding glacial acetic acid to adjust the pH value to 5-6 to obtain a leuco acid solution; finally adding carrier ethylene glycol phenyl ether to the leuco acid solution, and stirring to prepare Obtain vat dyeing liquor; In described vat dyeing liquor, the concentration of described vat blue BC is 4g / L, and the concentration of described sodium hydroxide is 4g / L, and the concentration of described thiourea dioxide is 4g / L, so The concentration of said ethylene glycol phenyl ether is 30g / L;

[0051] S2, over-dyeing: first put a predetermined proportion of wool powder into the ...

Embodiment 3

[0054] This embodiment provides a kind of overdyeing method of high-strength nylon 66 fiber and wool powder:

[0055] S1, preparation of dye solution: according to a predetermined ratio, add insoluble vat blue BC to distilled water, and stir, then add sodium hydroxide and thiourea dioxide in turn to obtain a leuco solution; heat the leuco solution to 60 ℃, stirring at a speed of 200r / min for 10 minutes, adding glacial acetic acid to adjust the pH value to 5-6 to obtain a leuco acid solution; finally adding carrier ethylene glycol phenyl ether to the leuco acid solution, and stirring to prepare Obtain vat dyeing liquor; In described vat dyeing liquor, the concentration of described vat blue BC is 6g / L, and the concentration of described sodium hydroxide is 6g / L, and the concentration of described thiourea dioxide is 6g / L, so The concentration of said ethylene glycol phenyl ether is 40g / L;

[0056] S2, over-dyeing: first put a predetermined proportion of wool powder into the va...

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Abstract

The invention provides a nylon fiber and protein powder overdyeing method. The method comprises the following steps: sequentially adding vat dye, sodium hydroxide, thiourea dioxide, glacial acetic acid and a carrier according to a preset concentration to prepare vat dye liquor; then adding a mixture of nylon fibers and protein powder into the dye liquor for an overdyeing process to finish respective dyeing of the nylon fibers and the protein powder; and finally, washing the dyed protein powder and nylon fibers in circulating water, cleaning flooding and separating to respectively obtain dyed nylon fibers and dyed protein powder. According to the overdyeing method, the dyeing efficiency of the nylon fibers difficult to dye can be remarkably improved, the uneven dyeing phenomenon of the nylon fibers is effectively improved through the excellent adsorption performance and the gradual release effect of the protein powder on vat dyes while the protein powder is overdyed, and the dyed nylonfibers and protein powder have excellent light fastness.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a method for overdyeing nylon fiber and protein powder. Background technique [0002] Nylon fiber has the advantages of high breaking strength, good fatigue resistance, and good wear resistance. It is the second largest synthetic fiber in output after polyester. It is widely used in textiles, clothing, automobile industry and other fields. Nylon dyeing is easy to dye due to the molecular structure of the fiber, resulting in a high rate of defective products. [0003] Vat dyes have excellent properties such as bright color, complete chromatogram, and good color fastness, among which the color fastness to sunlight and water washing are particularly prominent, and are often used in the dyeing of protein fibers and cotton in polyester-cotton blended fabrics. Overdyeing of components. Among them, the vat dye leuco dyeing method is to turn the vat dye into the sod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/24D06P1/22D06P1/46D06P1/651D06P1/649
CPCD06P3/243D06P1/221D06P1/46D06P1/65131D06P1/6495
Inventor 曹根阳夏泓蕙王运利陈欣盛丹潘恒郭维琪
Owner WUHAN TEXTILE UNIV
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