Points to note when overprinting and overprinting layout
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In general, try to minimize the number of overprints and overprints. The more the overprinting and overprinting times, the more severe the corrugated box's compressive strength drops and the scrap rate increases.
In the case of overprint layout, this problem is generally solved by gravure, and the gravure of the corrugated box is determined according to the accuracy of the printing apparatus.
In order to ensure the benchmarking during layout and printing, a registration line is generally prepared for the overprinting portion, and the registration line is usually arranged at the four corners outside the layout, which is in the shape of a cross or a letter.
The design should consider the printing color sequence of the overprint: if the overprint color is more, the dark outline should be printed first when the dark outline is used as the overprint rule; the inner edge of the outline of the image should be pressed with the darkest cover to eliminate the outline hair. At the mouth, the dark color must be overprinted. But sometimes this dark color is a set of color rules. In this case, you can first print the dark part, and finally the dark outline.
For the overlay layout design, the arrangement of the printing color sequence should be considered. The overlay layout design is only suitable for the dark overprint of the ink hiding power on the light color, which is generally black overprinting, and other colors are very prone to color change after overprinting. Can not meet the requirements of customers.