Textile static printing

Textile electrostatic printing is similar to inkjet printing, and it is also a kind of digital printing technology. It uses the printing principle of electrostatic copier or laser printer to realize advanced textile printing technology. At present, the technology is still at the research and experimental stage in the world and there are no reports of actual application. Electrostatic printing has higher printing speeds than ink jet printing technology that has been used in the production of small batches of textiles. From the point of view of current paper printing speeds, high-speed laser printers have higher printing speeds than ink-jet printers at similar printing densities, and thus have great potential for digital textile printing. One of the keys to achieving the electrostatic printing of textile crystals is to develop a suitable printing toner. Judging from the current foreign research trends, there are mainly two types of pigments (adhesive type) and dye type. In the 1980s, the Georgia Institute of Technology in the United States began researching the method of fabric printing using the principle of electrostatic copying, and received funding from the US Department of Energy.

They use commercial photocopiers and laser printers as printing test equipment, mainly for printing toners. According to published research, they mainly develop adhesive toners. This type of toner has a good adaptability and can be used in various fabrics or blended fabrics, but there are still major problems in the color fastness and feel of printed fabrics. Japan is also conducting related research. In May 2003, the Kyoto Dyeing Research Institute discussed the results of Ding Cheng's research and development of electrostatic printing in the past few years. In 2004, the Textile Technology Center of the Kyoto Institute of Industrial Science and Technology launched the electrostatic printing that can directly print on fabrics using electrostatic printing principles. prototype. The prototype they produced was 3-color, and the printing speed was 5-10m/min.

Since the key technology of this research involves multiple disciplines and is a comprehensive high-end technology research, international research on this technology is quite confidential. In the electrostatic printing, the toner is magnetically attracted from the ink cartridge to the magnetic roller on the side of the cartridge, and then absorbed by the surface of the cartridge with the electrostatic latent image. Then, the toner is transferred to the fabric to form a pattern, and finally is fixed on the fiber by heating or other methods. Printing process. Taking into account the printing fastness and fabric handfeel, this study mainly used the materials commonly used in textile crystal printing processing, explored the preparation method of dye-based electrostatic printing toner, and tested the toner's printing and coloring properties.

Source: China Washing & Dyeing Industry Information Center