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Fabric pre-treating method for digital ink-jet printing of dispersed dye

A digital inkjet, disperse dye technology, applied in dyeing, fiber processing, textiles and papermaking, etc., can solve the problem that the edges of inkjet printing patterns are not sharp enough, inkjet printing ink droplets cannot be quickly absorbed by fabrics, and the edges of ink droplets are mutually exclusive. Penetration and other problems, to achieve the effect of bright colors, clear details, and soft touch

Inactive Publication Date: 2010-05-19
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent ZL200510040110.1 introduces a fabric pretreatment method for inkjet printing with water-based pigment inks. The pretreatment liquid of this method is an aqueous solution of thickener and cationic additives, which can improve the vivid color of inkjet printing patterns to a certain extent. degree and color depth, but because it does not contain porous materials, the ink droplets of inkjet printing cannot be quickly absorbed by the fabric, and the edge of the ink droplets still penetrates each other, resulting in the edge of the inkjet printing pattern not being sharp enough

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

[0028] The hydrophobicity of polyester fabric is strong, and the ink-jet printing phenomenon of direct water-based disperse dye ink is serious. The present invention adopts the following method to pretreat the polyester fabric.

[0029] Pretreatment agent composition:

[0030] Polyvinyl alcohol (polymerization degree 2000) 4%

[0031] SiO 2 Nanoparticles 3%

[0032] Surfactant 1292 1.5%

[0033] Water 91.5%

[0034] Pretreatment process: the fabric is padded (two dipping and two padding), with a liquid rate of 70%, and then dried at 80°C.

[0035] Pretreatment effect: on a wide-format inkjet printing machine equipped with Epson nozzles, cloth feeding and receiving devices, water-based disperse dye inks are used to directly inkjet print pretreated polyester fabrics, and the printed fabrics are heated by infrared. Sublimation at 180°C for 1.5min. The inkjet printing pattern has clear outline, bright color, high color fastness and soft hand feeling.

Embodiment 2

[0037] Polyester-cotton blended fabric (70 / 30) has poor absorption performance on water-based disperse dye ink, and the direct inkjet printing has a large degree of bleeding. The following pretreatment agents are used for pretreatment before inkjet printing.

[0038] Pretreatment agent composition:

[0039] Polyethylene glycol (molecular weight 20000) 5%

[0040] SiO 2 Nanoparticles 2%

[0041] Ethoxyalkyl Sodium Sulfate (AES) 2%

[0042] Water 93%

[0043] Pretreatment process: The fabric is impregnated with a liquid retention rate of 80%, and then dried at 80°C.

[0044] Pretreatment effect: On a wide-format inkjet printing machine equipped with an Epson nozzle and a cloth feeding and receiving device, water-based disperse dye ink is used for direct inkjet printing, and the printed fabric is sublimated at 190°C for 1min by electric heating. After the fabric is ink-jet printed with water-based disperse dye ink, the outline of the pattern is clear, the printing precision ...

Embodiment 3

[0046] Polyester fabrics have poor absorption performance on weak solvent-based disperse dye inks, and direct inkjet printing has serious bleeding.

[0047] Pretreatment agent composition:

[0048] Sodium Alginate 1.5%

[0049] SiO 2 Nanoparticles 4%

[0050] Surfactant 1292 1%

[0051] Water 93.5%

[0052] Pretreatment process: the fabric is coated with a weight gain of 70%, and then dried at 60°C.

[0053] Pretreatment effect: On a wide-format inkjet printing machine equipped with Xaar XJ128 nozzles, cloth feeding and receiving devices, direct inkjet printing is performed with eco-solvent disperse dye inks, and the printed fabric is sublimated at 190°C by oil heating 0.5min. After the fabric is ink-jet printed with eco-solvent disperse dye ink, the outline of the pattern is clear, the details are clear, the color is bright, the color fastness is high, and the hand feels soft.

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Abstract

The invention relates to a fabric pre-treating method for digital ink-jet printing of a dispersed dye, which comprises the following steps of: (1) uniformly mixing 1 to 5 percent of water-soluble organic polymer, 2 to 3 percent of porous inorganic nano particle, 0.1 to 2 percent of surfactant and water to form a pre-treating agent; and (2) dipping, padding and coating a fabric dyed by a dispersed dye or sparing the pre-treating agent on the fabric dyed by the dispersed dye, wherein the fabric carrying liquid rate is 50 to 90 percent, drying the fabric, and heating the fabric at 180 to 220 DEG C for 0.5 to 20 minutes. The method of the invention is simple, low in cost and suitable for industrial production; the direct ink-jet printing of the fabric with the pre-treating agent has the advantages of uniform color, inhibited penetration phenomenon, high printing precision, sharp boundaries of patterns, clear detail and bright color; and the fabric offers a soft hand feel and has very good washing, friction and color fastness to light.

Description

technical field [0001] The invention belongs to the field of fabric pretreatment for digital inkjet printing, in particular to a fabric pretreatment method for digital inkjet printing of disperse dyes. Background technique [0002] Since the invention of rotary screen printing in the 1960s, there has been no breakthrough in textile printing technology, and a production cycle still takes 4 to 16 weeks. At present, the world's printing market share continues to increase. Printing puts forward the requirements of on-demand design and manufacture and timely delivery, while traditional printing technology is obviously not suitable for the rapid and multi-variety production requirements of textiles. From the perspective of the popular cycle and quantity of textiles, there is less and less time left for textile production, which requires a new generation of printing technology. The emergence of digital inkjet printing technology is in response to this new market demand, and has d...

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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IPC IPC(8): D06M15/333D06M11/79D06M13/256D06M15/53D06M13/262D06M15/13D06M15/09D06M15/03D06M13/368D06M15/356D06P5/30D06P1/16
Inventor 王夏琴李文彬
Owner DONGHUA UNIV
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