Engraving printing technique for polyacrylonitrile knitted fabric

A printing process and knitted fabric technology, which is applied in the processing of textile materials, textiles and papermaking, liquid/gas/steam textile material processing, etc. It can solve the problems of unstable process and inability to form large-scale production, and achieve bright colors and high quality. excellent effect

Inactive Publication Date: 2008-06-04
上海和晓印花有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cationic engraving process of polypropylene knitted fabric is still in the laboratory stage, and the process is extremely unstable and cannot be mass-produced.

Method used

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  • Engraving printing technique for polyacrylonitrile knitted fabric
  • Engraving printing technique for polyacrylonitrile knitted fabric
  • Engraving printing technique for polyacrylonitrile knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Fabric name: acrylic jersey.

[0058] Specifications: 80% acrylic fiber, 20% wool, 210g / m2 2 , door width 155cm.

[0059] Screen number: 5366×5 flat screen printing machine printing, mesh 1000 mesh.

[0060] Requirements: Dye the coffee base color on the polypropylene eye fabric first, and then engrave and print purple, autumn fragrance, deep red and deep yellow flowers on the coffee base color cloth.

[0061] crafting process:

[0062] ●Preparation - net making; adjust the color engraving paste; generally choose 1000 mesh for flat screen printing;

[0063] Dyeing the base color - use cationic dyes to dye the base color of the fabric, after dyeing, dehydration, opening, drying, setting and edge trimming;

[0064] Engraving printing—Using the slurry containing stannous chloride and stannous chloride-resistant cationic dyes that can destroy the chromophoric group of the base color dye, engraving printing on the fabric that has been dyed with the base color in sequence...

Embodiment 2

[0083] Example of engraving and printing paste formula: see Table 2

[0084] Table 2 (kg)

[0085]

[0086]

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Abstract

The invention relates to an embossing printing technique for polyacrylonitrile knitted fabrics. The flow of the invention is that: firstly, cationic dyes are adopted for dyeing background color of the fabrics; secondly, acid resistant and reducing agent resistant pastes and reducing agent resistant cationic dyes are adopted for preparing color pastes which are then used for embossing and printing the fabrics; thirdly, evaporation and color development are performed; fourthly, water scrubbing is performed; fifthly, after-finishing is performed, wherein, compositions of the color pastes by weight percent are that: acid resistant and SnCl2 resistant pastes of 55 to 75 percent; SnCl2 resistant cationic dyes are added into mixture according to depth of color lights; acetic acids with a concentration of 49 percent is the same with the cationic dyes; urea of 2 to 5 percent; oxalic acids of 2.0 to 2.5 percent; reducing agents SnCl2 of 6 to 10 percent; anti-reducing agents of 0.5 to 10 percent; water is added into the mixture to 100 percent. The invention has the advantages that: by adoption of the printing technique and the printing pastes, the polyacrylonitrile embossing printing knitted fabrics with high quality and bright colors can be obtained on the production line.

Description

technical field [0001] The invention relates to a textile printing process, in particular to an engraving printing process for polypropylene knitted fabrics. Background technique [0002] Polyacrylic fabrics are mainly used for blankets, decorative fabrics, clothing and outdoor products (such as tents, swimsuits, etc.), and can also be used to make carbon fibers for artificial fur. At present, the printing of acrylic knitted fabrics is usually limited to direct printing, that is, patterns of different colors are directly printed on white knitted acrylic fabrics. However, most direct printing is difficult to have satisfactory permeability, and white and uneven colors are often left on the reverse side of the printed fabric, and white will be revealed after the front is pulled apart, so its grade is difficult to improve. [0003] Using engraved printing on polypropylene knitted fabrics can completely solve the above defects. The engraving printing of polypropylene knitted fa...

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): D06P1/00D06P5/02D06B1/00D06B7/00
Inventor 顾定华钱灏卢广晓
Owner 上海和晓印花有限公司
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