Convex plate printing process knowledge

Convex plate printing process knowledge

http://www.cutcnccam.com/article-show-2011121385548.shtml

Color printing operation according to the presentation of the different printing processes are divided into direct dye printing and resist printing two categories. Direct dye printing, by definition, is in the designated areas stained with the dye directly to a variety of color patterns. Direct dye printing itself is divided into various forms, which first appeared in the direct dye printing method known as "letterpress."

Embossed with the stamp of the same principle, that is required prior to carving patterns printed on a printing plate, then brush on the dye in the printing plate, then printing plate coated with dye printed fabric flat surface covered in to form the desired color patterns.

Letterpress operation can be repeated in the same fabric printed out the same repetitive patterns or patterns of more than products. In addition, the use of multi-block printing plates, but also enables multi-step chromatography, which produced a very complex color patterns.

However, the letterpress has its drawbacks. The use of overlay techniques, although a number of complex patterns can be printed, but after all, need multi-block printing plate multi-step operation, working error rate is high. In addition, the amount of dye applied, and according to the intensity of the cover is difficult to precisely control, which is difficult to ensure uniform quality of printed products. Thus, in the traditional direct dye printing, based on the Han Dynasty when the resist printing technology.
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