Polyamide copolymer for nylon fabric printing

A fabric printing and polyamide technology, which is applied in the field of textile printing and dyeing, can solve the problems that acid dyes cannot be combined, printed fabrics have many floating colors, and do not have thermal migration, so as to improve the dyeing rate and fixation rate, and it is not easy to stain Phenomenon, good printing effect

Active Publication Date: 2018-02-09
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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  • Polyamide copolymer for nylon fabric printing

Examples

Experimental program
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Effect test

Synthetic example

[0049] 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.

[0050] 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

[0054] 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;

[0055] 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;

[0056] 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 ;

[0057] 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

[0059] 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;

[0060] 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;

[0061] 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 ;

[0062] 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.

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Abstract

The invention discloses polyamide copolymer for nylon fabric printing. The polyamide copolymer is prepared from N-hydroxymethyl acrylamide, vinylphosphonic acid dimethyl, ammonium persulfate, SP-80, sodium dodecyl sulfate and water which are subjected to emulsion seed polymerization method. Firstly, fabric is processed through polyamide copolymer, and then printing paste comprising a synthetic thickening agent, prepolymer and acid dye is printed. A method has the advantages that the task of the process flowing printing is simple, the dye fixation rate is high, the white ground is small in staining, the dyeing strength is excellent, colored wastewater is hardly charged, processing equipment belongs to conventional equipment, and the method belongs to an energy-saving and emission-reducing printing processing technology.

Description

[0001] The present invention is a divisional application with the application number: 201610246621.7, the application date: 2016.04.19, and the invention name: "A Polyamide Copolymer-Based Nylon Fabric Printing Method". The content of the present invention is the content of the application Polyamide copolymer and application part division. technical field [0002] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a polyamide copolymer for nylon fabric printing, which is used in a low water consumption, energy-saving and emission-reducing printing process of nylon fabric. Background technique [0003] 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 o...

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