When using color prints as originals, what issues need attention

The use of color prints as originals is only used in special cases where the original manuscript for producing the color prints does not exist, because the color prints have been copied once, resulting in the loss of part of the layers. 2. The copy again must be more deviating from the color of the first manuscript. Tones and sharpness; In addition, the color print itself is an image formed by the interlacing of the dots, and after the color separation and screening, an unattractive moiré is easily generated, which affects the copy quality. Therefore, when such an original is used, measures should be taken to prevent the occurrence of moiré in the prepress production. For the over-molded packaging prints as originals, due to creases on the original, corresponding measures must be taken to deal with the crease marks. For the bleeding part that has been die-cut, measures should be taken to make up, or the enlarged image of the original document should be enlarged to give the bleeding site.