Although digital printing, inkjet has a market share of about 5%. However, the development of inkjet printing is more or less constrained by some factors. At present, the following factors affect the quality of inkjet printing.
1. Color conversion
How to accurately convert the light source system's color (R, G, B) into inkjet or printed system (C, M, Y, K) is a very complicated knowledge, but only by accurately converting the color can we obtain Really high quality effect. Therefore, accurate color conversion technology is an important key to the quality of inkjet printing.
2. Resolution
In black and white ink-jet printers, the higher the resolution, the finer the resolution and the finer scale points, and the better the print quality. But for color ink jet printers, the resolution refers to how many ink dots can be printed in a width of 1 inch, regardless of whether the ink dots overlap.
3. Levels
The current ink jet printing technology can precisely control the ink droplet color scale, and the control of the color ink from the same position does not spray to spray one drop until it sprays 16 drops.
4. Print head control
The dots of ink are ejected onto the paper through nozzles. In general, the nozzle and the print head are made together, so the technology of the print head itself is very important, and the left and right print heads are the inkjet technology and the cantilever gears of the printing presses. Drive belt precision.
5. Ink
Inkjet printing inks are special inks of moderate viscosity, and should be non-toxic, stable, non-clogging, moisture-retaining, good jetting properties, and non-corrosive to the metal components of the head. At present, ink-jet inks are mostly dye-based inks, and the ink of the ink-jet printer must also have enough surface tension to prevent the ink from spattering when ejected. In addition, the ink must be fast-drying to prevent haziness on the paper. Therefore, the ink itself is also one of the factors that affect the print quality.
6. Substrate materials
Inkjet printing paper requires paper with a smooth surface and a certain degree of sizing. The ink sprayed is evaporated and dried. The dots of ink are circular, and the printed letters are clear and the graphics are beautiful. Color inkjet printing paper, preferably with a very thin layer of transparent coating on the surface, can quickly absorb ink, but also to avoid light scattering, in order to get the ideal print.