It have 3 elements for printing:
1. Paper: There have many types of paper, generally divided into coated paper, non-coated paper.
Coated paper generally refers to coated paper (light copper) and matt powder (bright copper),
mostly used for color printing. Non-coated paper generally refers to offset paper and newsprint,
mostly used for stationery, envelopes and newspaper printing.
2. Color: General prints are imprinted with four colors of yellow, magenta, cyan and black, also can print spot color.
3. Postpress: Such as hot stamping, embossing, etc, it helps improve print products' grade.
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