Digital ink jet fabric-treating process

A treatment process, digital inkjet technology, applied in textiles, papermaking, dyeing, etc., can solve the problems of easy photooxidation, troublesome operation, poor light fastness, etc., and achieve the effect of bright colors, good washing, and clear patterns

Inactive Publication Date: 2005-12-14
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of dye inks are: (1) Not universal, different fibers need to use different dye inks, such as cellulose fibers need to use reactive dye inks, protein fibers use acid dye inks, polyester fibers use disperse dye inks, etc. etc., and the nozzles and pipelines need to be cleaned when replacing the ink, which is troublesome to operate
(2) The light fastness of the printed pattern is poor, because inkjet printing is a non-contact printing method, most of the dyes stay on the surface of the fabric and exist in a molecular state, which is easily oxidized by light
Therefore, dye ink not only has complicated process, wastes water resources and energy, but also has a certain degree of environmental pollution.
These shortcomings of dye inks limit the advantages of textile digital inkjet printing technology and seriously hinder the development and application of this technology
[0004] Pigment ink is versatile and can print on any fabric in principle. However, in practical applications, some fabrics have poor water absorption and water holding properties, and the printed pattern is easy to bleed and the coloring is not bright enough. Therefore, it needs to be certain. processing to meet the requirements of inkjet printing

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Because cotton and wool fabrics have good water holding capacity and the patterns are not easy to permeate, inkjet printing can be carried out directly. It should be noted when printing, because this kind of fabric has poor light reflection ability, the color brightness should be adjusted in terms of image processing. To improve the vividness and color depth of the pattern, you can use the following treatment solution formula for treatment:

[0018] Cationic dye fixing agent 1%

[0019] Water 99%

[0020] Process flow: the fabric is dried after two dips and two rolls (with a reduction rate of 70%), and then inkjet printing is performed. After the printing is finished, the finished product is baked at 150°C for 3 minutes.

Embodiment 2

[0022] Polyester fabric has poor water absorption, and direct water-based pigment ink inkjet printing is prone to bleeding. The following treatment solutions can be used for treatment:

[0023] Polyvinyl alcohol 1%

[0024] Polyethylene glycol 0.2%

[0025] Cetyl trimethyl ammonium chloride 0.3%

[0026] Water 98.5%

[0027] Process flow: the fabric is dried after two dips and two rolls (50% surplus rate), inkjet printing, and then heat-set at 180°C for 30 seconds to obtain the finished product.

[0028] Because polyester has good light reflectivity, the pattern generally does not require special treatment. After the fabric is digitally inkjet printed, it can be rolled with a blanket-type thermal transfer machine at 150°C for 1 minute to get a better hand feeling.

Embodiment 3

[0030] Although the water absorption of silk fabric is good, its water holding capacity is poor, so it can be treated with the following treatment liquid:

[0031] Polyacrylic acid thickener 2%

[0032] Water 98%

[0033] Technological process: the fabric is dried after coating, inkjet printing, and then baked at 130°C for 3 minutes to obtain the finished product.

[0034] The smoothness of silk fabric is better, so the image in inkjet printing is generally focused on highlighting layering. After the digital inkjet printing is finished, it can also be rolled with a blanket-type heat transfer machine at 110°C for 1 min to get a better hand feeling.

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 present invention is digital ink jet fabric treating process, and belongs to the field of textile science and technology. The fabric pre-treating process for digital ink jetting and printing with water thinned pigment ink is suitable for fabric of cotton, hemp, silk, Dacron, polyester and cotton blend, acrylic fiber, etc.; and the treated fabric may be ink jetting printed with water thinned pigment ink in one digital ink jetting printer. After printing and proper heat treatment, may be produced printed product with clear pattern, bright color, and high fastness to resist water washing, friction and sunlight.

Description

Technical field [0001] A processing technology for digital inkjet printing fabrics belongs to the field of textile science and technology. Background technique [0002] Digital inkjet printing technology is a brand new textile printing technology, which has developed rapidly in recent years and has been applied in practice. Compared with traditional printing technology, this technology does not require plate making, is simple to operate, has the advantages of high printing precision, no dye waste, no pollution, etc. [0003] Digital inkjet printing inks are mainly divided into two categories, namely, dye type and pigment type. Dye-based inks are divided into three types: disperse dyes, acid dyes and reactive dyes. Currently, dye-based inks are mainly used in textile inkjet printing. The main disadvantages of dye inks are: (1) Not universal, different fibers need to use different dye inks, such as cellulose fibers need to use reactive dye inks, protein fibers use acid dye inks, po...

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): D06P5/30
Inventor 房宽峻田安丽
Owner JIANGNAN UNIV
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