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Sublimation fabric printing
发布日期:2012/3/13 点击率:1387

Sublimation fabric printing
Dye-sublimation transfer printing in the 1930s and 1970s, popular in Europe and the United States, Japan and other countries and regions, from the historical data, the special course of its development. Neither like optimists predicted, amazing share of textile printing is not as pessimists said, development is slow, even stagnant, waned. Sublimation technology development in China is relatively quickly a wide range of applications. In addition, due to less investment, non-polluting, conserve resources, outstanding printing results and other characteristics, attracted the attention of the relevant government departments. At present, the dye-sublimation transfer printing process has been included in China's State Economic and Trade Commission, key industries, clean production technology-oriented (the first) and No. 45 among prospects for the application in China is very optimistic.

    
First, the process principle and characteristics of

    
The dye-sublimation transfer printing is a printing special printing dye printing on transfer paper, and through the heating / pressure, to transfer the dye to the fabric of technology. Specifically, it is based on disperse dye sublimation properties, select the sublimation temperature range of 180 ~ 240 ℃ disperse dyes, mixed with the slurry made of the color ink, depending on the pattern / pattern requirements. Printing methods, color ink printing to transfer paper. Will be printed with a pattern, the pattern transfer paper and fabric in close contact with the handle on the transfer printing machine in the 200 ~ 230 ℃ 10 ~ 30s, after diffusion into the fabric inside the coloring purposes. Plus dye-sublimation process to dye directional diffusion tend to pollutants under the floor side of the dye-sublimation transfer ink imported from South Korea and Italy, expensive) introduction of digital dye-sublimation transfer printing technology and printing technology applications more and more widely. To sum up, the dye-sublimation transfer technology has the following four characteristics:

    
A printing effect. Using fine fabric pattern printed dye-sublimation transfer printing technology, colorful, rich layers of clear, high art, stereoscopic, is the other method of printing is difficult to do. And the publication of photography and painting style pattern.

    
Two. Printed materials, soft, long service life. Sublimation of the most important feature of the dye can spread to the polyester fibers, the feel of printed materials is very soft and comfortable, and basically not feel the ink existence of. Furthermore, since the ink is already dry in the transfer process, the image of life and clothing as long as life itself, does not appear printed graphics wear beautiful fabric.

    
3. The process is simple. Equipment investment in less rate flexibility genuine. Sublimation once printed a multi-chromatic patterns without having to spend, and can be printed live within a short period of time according to the personalized needs of customers.

    
4. Save resources on the environment-friendly. With the traditional fabric printing, dye-sublimation transfer printing without steaming, washing and other processing, saving vast amounts of water, but no sewage disposal, conserve resources and protect the environment.

    
Two quality impact factors

    
(A) ink

    
Sublimation ink is the key material for sublimation transfer technology of disperse dyes, binders, solvents and a small amount of additives. The dye should have good sublimation metastatic and permeability. And reach a certain fastness, the molecular weight of 23O ~ 380, the sublimation temperature of 180 ℃ ~ 240 ℃ commonly used transfer printing dyes are anthraquinone dyes, azo dyes and cationic dyes. Connection material with the dye affinity is small, easy to release the dye gases, and suitable printability, preservation, and thermal transfer adaptability, commonly used to connect materials of low viscosity ethyl cellulose, ethyl cellulose ethyl diameter hormone (of EHEC), long oil-modified alkyd resin. A common solvent turpentine, terpineol, high boiling point alkyl, aryl alkanes, fibrinolytic agents.

    
(B) temperature and time

    
Sublimation technology to control the temperature within the range of 180 ℃ ~ 230 ℃, time is about 10 ~ 30s, keeping in mind the reasonable distribution of temperature and time.

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