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How to solve the problem of color fading during paper bag printing

by:SWIFT     2021-04-13
Due to the different uses of making portable paper bags, the requirements for paper bags are also different. Some will need to be processed in multiple colors. Improper handling of this printing process will cause various problems, which will greatly reduce the overall effect of the paper bag. The following editor has sorted out several common problems and corresponding solutions.

First of all, we most often encounter the problem of color fading or incomplete printing. On the front page, we can choose to do a surface treatment, such as laminating, oiling, UV, etc., because there is a layer on the surface of the paper bag that is equivalent to a protective film, so it will greatly reduce the probability of color fading. Among them, the kraft paper bag has better absorption performance of natural ink, and generally does not suffer from color fading. But sometimes there will be problems of incomplete coloring, especially yellow kraft paper bags with a heavier background, which requires us to overprint many times, but we need to pay attention to each printing. If it is not allowed, it is easy to have ghosting effects. , It would be better to deal with the blank part.
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