Several important factors affecting the quality of inkjet printing
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Although in terms of digital printing, inkjet has a market share of about 5%. However, inkjet printing is more or less restricted by some factors in the development. At present, the following factors affect the quality of inkjet printing.
1. Ink
Ink for inkjet printing is a special ink with moderate viscosity. It should have non-toxic, stable, non-clogging nozzles, moisture retention, good jetting properties, and non-corrosive properties to metal parts of the nozzle. At present, inkjet inks are mostly dye-based inks, and inks of inkjet printers must also have sufficient surface tension to prevent ink from being sputtered out during ejection. In addition, the ink must be fast-drying to prevent smearing on the paper, so the ink itself is one of the factors that affect the printing quality.
2. Substrate material
For inkjet printing paper, paper with a smooth surface and a certain degree of sizing is required. The ink sprayed on the paper evaporates and dries, the ink dots are round, the printed characters are clear, and the graphics are beautiful. Color inkjet printing paper, preferably with a very thin transparent coating on the surface, can absorb ink quickly and avoid scattering of light in order to obtain the desired print.
3. Color conversion
How to accurately convert the color (R, G, B) of the light source system into an inkjet or printing system (C, M, Y, K) is a very complicated knowledge, but only by accurately converting the color can the Real high quality results. Therefore, accurate color conversion technology is an important key to the quality of inkjet printing.
4. Resolution
In the case of a black-and-white inkjet printer, the higher the resolution, the finer the resolution and the color point, and the better the print quality. For color inkjet printers, however, resolution refers to how many ink dots can be printed over a width of 1 inch, regardless of whether the ink dots overlap.
5. Levels
Current inkjet printing technology can precisely control the ink droplet level, and control the color ink from the same position to not spray 1 drop until 16 drops.
6. Print head control
The ink dots are sprayed onto the paper through the nozzle. Generally, the nozzle and the printing head are made together, so the technology of the printing head itself is very important, and the left and right printing heads are the inkjet technology and the cantilever gear of the printing machine. The precision of the drive belt.