Inkjet printing method

Abstract

The invention provides an inkjet printing method, comprising the following steps: process the surface of a printed material by adopting an atmosphere low-temperature glow plasma; carry out inkjet printing on the processed printed material. The temperature of an electric discharging gas is close to the room temperature, wherein, an electric discharging plasma contains a great amount of active materials which can etch the surface of the printed material, clean organic pollutants and activate material surface, thereby increasing the specific surface area of the material, enhancing the surface activity and cleaning the surface, an ink droplet is easy to spread, by adopting an surface processing method of the printed material before the inkjet printing, plasma electric discharging treatment is carried out to the printed material to be printed in the inkjet printing method, the surface characteristics of the printed material to be printed is changed, therefore, the ink droplet is easy to spread when the inkjet printing is carried out on the processed printed material, and the temperature of an electric discharging gas is close to the room temperature, therefore, the temperature of printed material surface is even.

Description

technical field [0001] The invention relates to the field of printers, in particular to an inkjet printing method. Background technique [0002] Inkjet printing is considered as a non-contact, pressure-free, and plateless digital printing method, which has incomparable advantages over traditional printing. With the continuous development of the printing field, especially the development of digital printing, inkjet printing has been used in digital proofing, short-run fast printing, and digital variable printing combined with traditional printing. Many experts in the industry believe that inkjet printing is no longer a supplement to traditional printing, but is expected to become another mainstream printing method after offset printing, gravure printing, flexo printing, and screen printing. [0003] However, inkjet printing is a non-pressure printing method in which text and images are obtained by computer-controlled ink droplets ejected from the nozzle on the substrate. Onc...

AI Technical Summary

Problems solved by technology

[0009] The present invention aims to provide an inkjet printing method, which can solve the problem that the coating method in the prior art has complicated process and raw materials, which leads to high cost and side effects; the cost of the UV ink method is relatively high; Due to the fact that the heat distribution of the traditional inkjet printing method cannot change with the density of ink droplets, that is, the image part with denser ink droplets needs more heat to dry, and the blank part with sparser ink droplets needs less heat to dry. The heat provided by the device is evenly distributed on the surface of the substrate. When the drying degree of the image part with relatively dense ink droplets is satisfied, the blank part will be curled due to excessive dehydration caused by overheating. At the same time, the drying of the image part with dense ink droplets is not complete

Images