Printless printing technology is one of the development directions of printing at home and abroad

Since the 1980s and 1990s, on the basis of previous carpet jet printing technology, fabric jet printing technology has made new progress in the improvement of its key components (nozzle) structure and the manufacture of supporting color materials. Thus entered a period of vigorous development of digital jet printing technology.

Normally, "printing template" must be available for printing to print the required pattern, so the printing template can be said to be a necessary element for printing a certain pattern. With the development of printing technology over the years, the printing templates used in different printing methods are different. For example, the printing template for manual wood printing is a printing wooden template; the printing plate is a carved paper version; the roller printing is It is a printing roller; when screen printing, it is a flat screen printing screen frame or a printing round screen. The various printing methods mentioned above belong to the version printing technology. The process of manufacturing printing stencils used in different printing methods is usually called a plate-making process (sometimes also called engraving process by roller printing etc., and also called screen-making process when screen printing). Plate-making workers are required to have certain skills in operation, and it is time-consuming, laborious and time-consuming. Even with modern roller printing and screen printing, the plate-making technology has been improved several times (for example, roller printing has been developed from initial hand engraving to reduced engraving, and then photographic engraving, electronic engraving, wax spray flower cylinders, etc. have been developed; Has developed laser screen, wax spray and inkjet screen, etc.), its technical requirements are still relatively high, and the process and operation are more complicated, because it is easier to cause defects and defects in plate making. Affect the quality of printed products. Therefore, domestic and foreign countries have begun to attach importance to the research and development of printing technology without printing templates, that is, without printing.

The development of computer technology and its popularization and application in the 20th century has been very rapid, which has created good conditions for the research and development of printing technology without plates. The general working process is: using computer technology to read in the original of the pattern (scanning input), or input the pattern information stored in the storage element of the digital photo of the pattern, process the input information according to the method adopted, and color it through the special equipment The agent is used directly (without "printing template") to form the required patterns on the fabric, which is the so-called digital printing technology. Using this technology can not only save the plate making process, but also eliminate the pulping process, greatly simplifying the printing process.

Printless printing technology can simplify the printing process and is one of the development directions of printing technology at home and abroad. Since the 1980s and 1990s, digital jet printing technology has entered a period of development, while digital electrostatic printing technology has emerged. Digital jet printing technology has the characteristics of quick response, instant production and supply. The printing effect is good and it is beneficial to environmental protection. However, there are disadvantages that the production rate is too slow or the cost is too high, which affects its large-scale promotion and application in production. Digital electrostatic printing technology has been found to have the characteristics of jet printing technology through the current prototype test, and can largely improve the latter's two main shortcomings, it is estimated that there is a promising future.

2. Features

1) The printing process is greatly simplified: the two major processes of plate-making and pulping can be omitted, a lot of equipment is saved, and a lot of manpower, materials and costs are saved.

2) Excellent printing effect: the printed product is exquisite and close to the simulation effect; only a limited number of basic colors and special colors are required to print 16.7 million colors in theory. It is suitable for producing high-end, exquisite, high-priced, fashionable and personalized products.

3) The products that are urgently needed in the market can be supplied in time: suitable for small batches, multiple varieties and rapid production.

4) It is beneficial to environmental protection and energy saving: because of the need to feed materials (color materials) during printing, almost no waste and waste materials are generated, and the burden of wastewater discharge and wastewater treatment during processing is greatly reduced; water consumption and energy consumption are minimal.

5) It can make the connection between production, supply and marketing and the market close: it is suitable to combine with the current rapid development of information network technology, which is conducive to the development of information transmission, design, marketing, ordering, customization and production.