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Heat transfer digital printing method for natural fibers and regenerated cellulose fibers

A technology of regenerated cellulose and natural fibers, applied in the field of textile printing, can solve the problems of protein fiber embrittlement, complex process, high investment, etc., and achieve the effect of good product performance, high resolution, and investment saving

Inactive Publication Date: 2014-02-19
沈翰宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the disadvantages of this printing method is that it uses alkaline dipping solution, which is not suitable for printing protein fibers, and it is easy to cause embrittlement of protein fibers; the other is that it uses high-pressure special equipment and self-made ink, which is complex in process and high in investment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of natural fiber and regenerated cellulose fiber thermal transfer digital printing method, carry out according to the following steps:

[0042] (1) Preparation of coating glue:

[0043] 7% alginate, 1.5% defoamer and 91.5% water are prepared by weight. Pour the water into the mixer, then slowly pour in the seaweed gel, stir at the mixer speed of 600 rpm for 5 minutes, add the defoamer, then adjust the speed to 1600 rpm and stir for 25 minutes, and adjust the viscosity at about 3000 centipoise , put it aside for 2 hours after the preparation is complete.

[0044] (2) Apply printing coating glue

[0045]Use the coating machine to coat the prepared coating glue and the PET film with a width of 1.6 meters. The coating should be uniform and the thickness should be about 15 μm.

[0046] (3) Film printing

[0047] Put the coated PET film on the digital photo machine, and print the designed pattern with reactive dye ink.

[0048] (4) Preparation of printing paste

...

Embodiment 2

[0058] Other operations are the same as embodiment 1, the difference is:

[0059] (5) Upper printing paste

[0060] Soak the cashmere scarf to be printed in the printing paste, take it out after it is wet, and dry it with a dehydrator. The moisture content is 75%, and then spread it on the moving plate of the thermal transfer printing machine.

[0061] The dye in this embodiment can transfer more than 95%, the resolution of the printing pattern is high, the layers of the pattern are clear, and the photo effect is achieved. There is very little floating color in the washing process, the color fastness of the printing reaches above grade 4, and the printing effect completely reaches the imported The level of digital printing machines.

Embodiment 3

[0063] Other operations are the same as embodiment 1, the difference is:

[0064] (5) Upper printing paste

[0065] Dip the cashmere scarf to be printed in the printing paste, take it out of the paddle after it is wet, and dry it with a moisture content of 75%, and then lay it on the moving plate of the heat transfer printing machine.

[0066] The dye in this embodiment can transfer more than 95%, the resolution of the printing pattern is high, the layers of the pattern are clear, and the photo effect is achieved. There is very little floating color in the washing process, the color fastness of the printing reaches above grade 4, and the printing effect completely reaches the imported The level of digital printing machines.

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PUM

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Abstract

The invention relates to a printing method for textiles, in particular to a heat transfer digital printing method for natural fibers and regenerated cellulose fibers. The heat transfer digital printing method comprises the following steps of: spreading and printing a film or a composite film which is subjected to coating treatment and textiles subjected to sizing by using an ironing press at the temperature of between 40 and 100 DEG C for 30 to 90 seconds; stripping the film or the composite film; and drying the textiles subjected to printing, and ageing for color fixing. By the heat transfer digital printing method, the problem that a digital printing machine and a computer photogravure press cannot perform jet printing on the film directly is solved, and the obtained printing textiles have the characteristics of high resolution ratio of printing patterns and distinct gradation of flower types and can achieve a photo effect; and a process is easy to operate and low in production cost.

Description

technical field [0001] The invention relates to a textile printing method, in particular to a thermal transfer digital printing method for natural fiber and regenerated cellulose fiber textiles. Background technique [0002] Traditional printing methods will generate a lot of waste water and waste gas, seriously polluting the environment, and the production process requires a lot of steam and heat energy, and energy consumption is increasing day by day. In order to protect the environment and reduce energy consumption, many countries are researching new printing processes that do not use water or use less water, which leads to the sublimation heat transfer printing process. The initial heat transfer printing can only be printed on chemical fiber textiles, and cannot be applied to natural fibers and Regenerated cellulose fiber thermal transfer printing, along with the improvement of the printing process, a method for cold transfer printing on natural fiber fabrics appears, bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/26D06P1/38D06P1/39D06P3/10D06P3/06D06P3/66
Inventor 沈翰宇
Owner 沈翰宇
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