In the process of practical application of digital printing, there are still many problems such as product quality to be improved. From the current technical level, there are five technical difficulties in digital printing.
1.the color method is not scientific
The traditional printing process uses color blocks to adjust the color color by color, while the digital printing uses the color separation principle to mix colors, so the color can only be adjusted on the computer.
At present, the color masters engaged in the digital printing industry are using PS software for coloring, while the PS coloring is mainly for the ink and paper of the printing industry, and its parameters are not scientific enough for textiles.
2.The coating system is not perfect
Mainly additives and coating equipment must fully meet the requirements of digital printing. However, there is a lack of special equipment in terms of coating uniformity, on-demand sizing, speed, and weft control; the additives are also lacking in personalization
3.The color is not high enough
If the digital printing is three colors mainly composed of dark green, cyan, brown, etc., then the color needs to be mixed with three or four inks of yellow, cyan, magenta, and black.When the three colors of yellow, cyan, and magenta are mixed, a certain gray scale is generated, resulting in poor color vividness.
The color of the digital printing is mostly three colors. It needs three or four inks of yellow, cyan, magenta and black to be mixed out. A certain gray scale will appear, and the digital printing effect of the t-shirt after printing is The vividness is poor.
4.Drop size cannot be adjusted by pattern
Nowadays, digital printing machines sold on the market can basically adjust the size of ink droplets automatically. However, this adjustment is completely the whole ink droplet adjustment, that is, when the ink droplet 10PL is adjusted, all the nozzles are supplied at 10PL; when the ink droplet 50PL is adjusted, all the nozzle ink droplets are large and all can only be 50PL.
Therefore, the digital printing machine can not automatically change the size of the inkjet volume according to different parts of the pattern, and thus can not simultaneously spray different sizes of lines in the same pattern, so that The beauty of the flower pattern is greatly reduced.
