It’s true: the black generated by the inkjet printer often leaves some pixels open. But the film is not of poor quality, on the contrary silk screen printing.
We know that the print quality of ink jet plotters It could not be compared with that of old systems, such as the photocomposer.
In fact, the plotter’s printing allows the pixels to be seen and that is a technical limit that is impossible to overcome.
In any case, the resolution and black level They are more than sufficient for screen and pad printing reproduction, and the ink jet system is already the one that is universally adopted.
There are precise parameters to calibrate the Inkjet printers and obtain the covering black.