Quality enhancement of images printed on colored paper in litho offset printing

الملخص EN

The study has been to find a solution to the problem of printing on colored paper.

due to repeat the problem of differing quality of the printed image on the white paper from colored paper to reach a solution to that problem has been conducting experiments in order to reduce the effect of the color of paper as the infrastructure layer of the printed image and by reducing the transparency of the ink.

was a positive outcome for the quality of the printed image on colored paper .

the results were better when you increase the added opaque white ink to regular inks but with the large increase resulted negative results in terms of the value of the pigment within the ink may say, thus affecting the color density.

he also has been the experience of another direction in order to avoid these negative result and that by printing opaque white color as the infrastructure layer of the printed image was obtained good results.