Digital inkjet printing, transfer printing

In addition, the flat screen printing also needs a certain production preparation cycle, because the screen printing process of flat screen printing is similar to rotary screen printing, but the screen used for flat screen printing is not a nickel mesh but a polyester mesh. Including stretching, gluing, exposure, development, curing and other processes.

Digital inkjet printing

Digital inkjet printing is through the input device such as a scanner or a digital camera, enters the desired pattern into a computer, edits and processes by the electronic color separation system, and then the computer controls the ink jet system to directly inject ink made of printing dye or paint onto the fabric. The process of forming a pattern is similar to that of a color printer used in an office. Currently, fabric printing inks can be made from reactive dyes, acid dyes, disperse dyes, or paints, respectively. After ink-jet printing, the fabrics must be dried, steamed (or cured), and dried, like traditional printing processes. Color, washing and other follow-up process.

The greatest advantages of this printing method are flexible production, no need for plate making or network production, short production preparation time, good pattern reproducibility, high precision, unrestricted number of sets of colors, clean environment, and realizable diversity in printing production. Personalization, to meet the market demand for small batches, multiple varieties, fast delivery. In addition, the energy consumption of this printing method is low, and the emission of industrial pollutants is much lower than the traditional printing methods. Therefore, it can be said that it is the development direction of the textile printing industry. This type of printing has become very popular in advanced countries and regions such as Europe and Japan, and the proportion of printed fabrics produced by digital inkjet printers is comparable to rotary screen printing.

Domestic printing and dyeing plants are also very interested in this new technology. They are all introducing equipment for production. However, at present, China's digital ink jet printing technology is still not very mature in terms of technology, but it has fallen behind the development level in Europe as a whole and has not formed scale. In 2011, the proportion of digital inkjet printed fabrics in printed fabric production was approximately 1%. The existing problems are low output and high processing cost. Digital ink jet printers and special fabric printing inks mainly rely on imports, which limits the application of this new technology. However, in the future, this new technology will be more widely used in China and will partially replace the existing rotary screen printing and flat screen printing.

Transfer printing

At present, transfer printing is mostly used for pure polyester fabrics. It is a principle that disperse dyes can be used to automatically transfer to polyester fabrics at a certain temperature. It cannot be used directly in common pure cotton fabrics. Can transfer printing.) Before printing fabrics, the sublimation dyes should be printed on special transfer paper in a similar manner to the printing method. Then the printed transfer paper with polyester fabrics is pressed through the hot press with a flat web at a high temperature. Under the effect of pressure, the disperse dyes on the transfer paper will be transferred to the polyester fabric to complete the printing process. There is no need for post-treatment such as steaming, baking, and water washing as in conventional printing methods, and there is almost no pollution problem. This type of printing method is also suitable for printing the type of fabric and the pattern is also very limited, and because of the high cost of the transfer paper, the printing cost is relatively high. Therefore, the proportion of calico produced by this printing method is still very small.