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A kind of nylon fabric printing method based on polyamide copolymer

A polyamide copolymer and fabric printing technology, applied in the field of textile printing and dyeing, can solve the problems that acid dyes cannot be combined, have no thermal migration, and reduce the brightness of color, so as to improve the dyeing rate and the fixing rate, and it is not easy to stain. Color phenomenon, the effect of less dye floating color

Active Publication Date: 2018-03-09
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the synthetic thickener, acid dye, functional prepolymer and water are mixed to make a printing paste, then the printing of the nylon fabric is completed on a circular screen or screen printing machine, and then it is completed on a stenter heat setting machine. Fixation of acid dyes to fibers. It was found that the dyeing rate of acid dyes to fibers is extremely low, and the surface of the fibers is almost all unfixed floating dyes. This is because acid dyes do not have heat in hot dry air. Migration, and the fixation of acid dyes and nylon is based on the interaction of van der Waals force, hydrogen bonds and ionic bonds. Because the amino groups on nylon are relatively small, the degree of ionic bonding between acid dyes and amino groups is limited. Many acid dyes cannot form a firm bond with the fiber, and the printed fabric has more floating colors, so it still needs to be washed with soap and water to remove the unfixed acid dye on the fiber surface
Therefore, the acid dye decomposed on the fiber during soaping will contaminate the unprinted white area in the soaping solution, and it will also contaminate the printed area, resulting in a decrease in the whiteness of the white background, or a decrease in the vividness of the color

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of nylon fabric printing method based on polyamide copolymer

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example

[0048] Mix 7.0g of N-methylolacrylamide, 20.0g of dimethyl vinylphosphonate, 1.2g of SP-80, 1.5g of sodium dodecylsulfonate and 60.3g of water, and stir well to form 90.0g of emulsion; 1.0g ammonium persulfate was dissolved in 9.0g water at room temperature, and fully stirred into 10.0g ammonium persulfate solution; half 45.0 g of the emulsion quality and half 5.0 g of the quality of ammonium persulfate solution were added to the reaction device of the three-necked flask, While heating and stirring, the temperature was raised to 70°C. When the temperature reaches 70°C, under stirring, slowly add the remaining emulsion and ammonium persulfate solution dropwise at the same time, and the dropping time is 120min. After the dropwise addition was completed, the stirring was continued for 120 min to obtain a polyamide copolymer A.

[0049] Mix 9.0g of N-methylolacrylamide, 16.0g of dimethyl vinylphosphonate, 1.5g of SP-80, 1.5g of sodium dodecylsulfonate and 62.0g of water, and stir...

Embodiment 1

[0053] 1) Add 2.0 g of polyamide copolymer A to 98.0 g of water, stir evenly to obtain solution A, then pad the nylon fabric with solution A, control the rolling rate to 85%, and place it on the drying equipment after padding is completed Drying, the drying temperature is 105°C;

[0054] 2) Mix 1.5g of H90 synthetic thickener, 0.6g of weak acid orange GS, 1.0g of acrylate prepolymer A and 96.9g of water, and fully stir until it becomes a slurry to prepare an orange phase printing paste;

[0055] 3) On the screen printing equipment, print the nylon fabric with the orange phase printing paste, after drying, and then steam it on the steamer equipment, the temperature is 100°C, the humidity is 100%, and the time is 15 minutes ;

[0056] 4) Wash the above steamed nylon fabric in a washing machine at a temperature of 50° C. for 15 minutes; then dry it in a conventional drying equipment to obtain an orange phase printed nylon fabric.

Embodiment 2

[0058] 1) Take 5.0 g of polyamide copolymer B, add 95.0 g of water, stir evenly to obtain solution B, then pad the nylon fabric with solution B, control the rolling rate to 85%, and place it on the drying equipment after padding is completed Drying, the drying temperature is 115°C;

[0059] 2) Mix 2.0g of PTF-A synthetic thickener, 2.5g of acid red 315, 1.5g of acrylate prepolymer B and 94.0g of water, and fully stir until it becomes a slurry to prepare a red phase printing paste;

[0060] 3) On the screen printing equipment, print the nylon fabric with the red phase printing paste, after drying, and then steam it on the steamer equipment, the temperature is 110°C, the humidity is 90%, and the time is 18 minutes ;

[0061] 4) Wash the above steamed nylon fabric in a washing machine at a temperature of 60° C. for 10 minutes; then dry it in a conventional drying equipment to obtain a red phase printed nylon fabric.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a nylon fabric printing method based on a polyamide copolymer, which includes the processes of fabric pretreatment, fabric printing, fabric steaming and water washing. , prepolymers, and acid dyes are printing pastes. The advantage of this method is that the task of washing after printing is lighter, the dye fixing rate is high, the staining on the white background is less, the color fastness is excellent, there is almost no discharge of colored wastewater, and the processing equipment is conventional equipment, which is an energy-saving method. Emission-reducing printing processing technology.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a printing method based on polyamide copolymer nylon fabric, which is used for the low water consumption, energy-saving and emission-reducing printing process of nylon fabric. Background technique [0002] Acid dyes are a class of dyes containing water-soluble groups, most of which are sulfonic acid groups, which can directly dye protein fibers and polyamide fibers under acidic, weakly acidic or neutral conditions. They are used for protein fibers and polyamide fibers. Dyeing and printing of polyamide fibers. Acid dyes are often used in the printing of nylon fabrics. Generally, acid dyes, raw paste, urea, ammonium sulfate, etc. are mixed with water to prepare a color paste with a certain viscosity. Then the color paste is printed on the fabric, and the dyeing and fixing of the fiber by the acid dye is completed by steaming, and then soaping and mu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/39D06P1/52D06P3/24D06P1/44C08F220/18C08F220/44C08F220/58C08F220/06C08F226/10C08F222/14C08F222/16C08F230/02
CPCD06P1/39D06P1/445D06P1/525D06P1/5257D06P1/5278D06P3/001D06P3/241C08F220/18C08F220/58C08F230/02C08F220/1804C08F220/06C08F222/102C08F222/103C08F220/44C08F226/10C08F220/1802C08F226/02
Inventor 薛珺予朱亚伟
Owner SUZHOU UNIV
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