Method for dyeing polypropylene fibers with sulfydryl-containing anthraquinone type disperse dye

A mercapto-anthraquinone type, polypropylene fiber technology, applied in the direction of dyeing, textiles and papermaking, can solve the problems of low dye uptake, poor color fastness, etc., and achieve high dye uptake, good fastness performance, good The effect of the application foreground

Pending Publication Date: 2022-01-04
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the study of polypropylene fiber dyeing, there are still problems such as low dye uptake and poor color fastness. Therefore, a kind of dyeing effect that can show high dye uptake and high color fastness on polypropylene fibers is better. Dyeing method has become an urgent problem in the dyeing industry

Method used

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  • Method for dyeing polypropylene fibers with sulfydryl-containing anthraquinone type disperse dye
  • Method for dyeing polypropylene fibers with sulfydryl-containing anthraquinone type disperse dye
  • Method for dyeing polypropylene fibers with sulfydryl-containing anthraquinone type disperse dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 1g of mercapto-anthraquinone-type disperse dye, 1g of dispersant NNO, 60g of zirconium beads (0.8mm in diameter), and 10mL of water, and put them into a sand mill for 8 hours of sanding. After the sanding, filter through a fine nylon filter cloth to collect the dye Dilute the dispersion liquid in a 100mL volumetric flask to obtain a dye paste; pipette the dye paste according to the 2% chroma requirement, add a buffer solution of sodium acetate and ammonia water (pH value is 5) at a bath ratio of 1:30, and then transfer Add 1g of polypropylene fabric to be dyed into the dyeing cup, put it into a high-temperature and high-pressure dyeing machine, raise the temperature to 60°C at a rate of 2°C / min, then raise the temperature to 120°C at a rate of 1°C / min, keep it warm for 30 minutes and then drop to At room temperature, take out the dyed cloth swatch. Put the dyed polypropylene fabric into 13mL hydrogen peroxide-ammonia solution (the volume ratio of hydrogen peroxide ...

Embodiment 2

[0040] Take 1g of mercaptoanthraquinone-type disperse dye, 2g of dispersant NNO, 50g of zirconium beads (0.7mm in diameter), and 10mL of water, and put them into a sand mill for 6 hours of sanding. After the sanding, filter through a fine nylon filter cloth to collect the dye The dispersion liquid was fixed in a 100mL volumetric flask to obtain the dye paste; the dye paste was pipetted according to the 1% chroma requirement, and the buffer solution of sodium acetate and ammonia water (pH value was 5) was added according to the bath ratio of 1:20, and then transferred Add 0.5g of polypropylene fabric to be dyed into the dyeing cup, put it into a high-temperature and high-pressure dyeing machine, raise the temperature to 65°C at a rate of 2°C / min, then raise the temperature to 110°C at a rate of 1°C / min, and keep it warm for 30 minutes Cool down to room temperature and take out the dyed swatch. Put the dyed polypropylene fabric into 7mL hydrogen peroxide-ammonia solution (the vo...

Embodiment 3

[0043] Take 1g of mercaptoanthraquinone-type disperse dye, 2g of dispersant NNO, 50g of zirconium beads (0.7mm in diameter), and 30mL of water, and put them into a sand mill for 6 hours of sanding. After the sanding, filter through a fine nylon filter cloth to collect the dye The dispersion liquid was fixed in a 100mL volumetric flask to obtain a dye paste; 2% chroma required to pipette the dye paste, add a buffer solution of sodium acetate and ammonia water (pH value was 6) at a bath ratio of 1:40, and then transfer to Add 1g of polypropylene fabric to be dyed into the dyeing cup, put it into a high-temperature and high-pressure dyeing machine, raise the temperature to 70°C at a rate of 2°C / min, then raise the temperature to 130°C at a rate of 1°C / min, keep it warm for 30 minutes, and then cool it down to room temperature , take out the dyed cloth sample. Put the dyed polypropylene fabric into 13mL hydrogen peroxide-ammonia solution (the volume ratio of hydrogen peroxide and ...

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Abstract

The invention relates to the technical field of disperse dyes, in particular to a method for dyeing polypropylene fibers with sulfydryl-containing anthraquinone type disperse dyes. The method comprises the following steps of firstly, dyeing a polypropylene fabric by using the sulfydryl-containing anthraquinone type disperse dyes, then putting the dyed polypropylene fabric into an oxidation color fixing agent for color fixation, and forming disulfide bonds among the sulfydryl-containing anthraquinone type disperse dyes, so that the purposes of coloring the polypropylene fiber by using micromolecular dyes and fixing the color by macromolecular dyes are achieved. The sulfydryl-containing anthraquinone type disperse dyes disclosed by the invention are better in dark color effect, good in fastness performance, relatively small in dosage in the dyeing process, high in dye uptake and less in generated dye wastewater, can effectively solve the industrial problem of high COD and BOD of wastewater in the manufacturing and printing and dyeing processes of traditional disperse dyes, and have a good application prospect.

Description

technical field [0001] The invention relates to the technical field of disperse dyes, in particular to a method for dyeing polypropylene fibers with mercapto-anthraquinone-type disperse dyes. Background technique [0002] Polypropylene is a fully saturated hydrocarbon polymer with no polar or active groups in its molecular chain. Polypropylene fiber is a kind of fiber that can have good elasticity, high strength and toughness under heavy load. It also has the characteristics of light texture, wear resistance, strong coverage and excellent heat insulation performance, which makes it widely used. In carpets, decorative fabrics, medical and other fields. Due to the high degree of crystallization of polypropylene fibers, the higher the degree of crystallization, the lower the probability of dye molecules diffusing from outside to inside, resulting in their very strong hydrophobicity and chemical stability, so it is difficult to promote the dyeing of polypropylene fibers. dyein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/79D06P1/20D06P5/02
CPCD06P3/794D06P1/20D06P5/02
Inventor 黄昊飞孟华杰李富强刘笑言尹磊荆泽昊张文淑张琪李春红张彩云郭敏李玉超左村村王晶王鸣
Owner SHANDONG UNIV OF TECH
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