The hottest paperless heat transfer printing techn

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New technology of paperless heat transfer printing

it is reported that the special metal foil can first print the pattern like paper, and then transfer the pattern to the fabric, which can be reused after heat transfer, basically without loss. Replacing paper with metal foil can avoid the environmental pollution caused by papermaking and waste paper recycling, and reduce the production cost by more than 15%. It has a very good industrial application prospect

the research group also solved the worldwide problem that heat transfer printing is only applicable to polyester. They used non-toxic and biodegradable bridging agent to bridge silk, pure cotton and polyester cotton fabrics in advance, and realized the heat transfer printing of these fabrics, which has passed the pilot test and identification. 10. According to the situation, the main indicators of cooling oil printing are achieved, but in fact this is impossible or beyond the national standard. According to preliminary statistics, these three kinds of fabrics account for more than 60% of printed clothing fabrics and bedding. Therefore, it has a certain foundation to broaden the application range of heat transfer printing process

heat transfer printing is a new printing process developed in the 1960s, which is considered to be the most advanced after reactive dyes in the textile industry Soft and tough: an important invention with high elongation at break and a revolution in printing technology. Compared with the traditional process, which hopes that the above sharing can bring help to you, this process saves time by 2/5, saves plant and manpower by 1/3, saves water by 4/5, and reduces the defective rate by 2/3. Its advantages include accurate chromatic registration, clear and exquisite patterns, and strong flexibility. It can be produced in large quantities or in small quantities. It can also print hand-painted, photographic, traditional Chinese painting and other artistic styles, as well as local printing

at present, the heat transfer printing process still has three shortcomings: first, because natural fibers and other hydrophilic fibers have no affinity with the dyes used in heat transfer printing, they can only be printed on polyester fabrics at present, which limits the scope of application; Second, using paper as the substrate of heat transfer printing does not fundamentally solve the environmental problems. Because the water consumption and pollution caused by papermaking and waste paper recycling are still very serious; Third, the plate making cost is expensive. The cost of each set of plates (including the plate base) is 3000 ~ 5000 yuan, which can not meet the development needs of personalization, small batch and multi variety. It is these three problems that restrict the application scope of heat transfer printing process and affect its further development. If these three problems can be solved, heat transfer printing can not only expand the scope of application, but also become a real clean printing and dyeing process. Therefore, heat transfer printing has become an international research hotspot

Beijing Institute of fashion began the "Application Research of heat transfer printing technology" in 1996. In the early stage, with the support of the former China Textile Federation, a breakthrough in technological research was made. In the later stage, the engineering and industrialization research was supported by the special funds of the National 863 program. The paperless heat transfer printing process eliminates the three links of water consumption and water pollution sources of traditional printing and dyeing processes, namely, fixation, soaping and washing, It eliminates the problems of indirect water consumption and water pollution caused by paper consumption in the existing paper heat transfer printing process, and also widens the application range of heat transfer process. Once the process is realized, it has outstanding significance in environmental protection

source: keyin

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