Baohe practical printing technology series, Zeng Dilai modern packaging design. According to the inquiry of coffee wrapping paper, the reference materials of coffee wrapping paper can refer to books related to packaging design, such as Baohe Practical Printing Technology Series and Zeng Dilai Modern Packaging Design. Jinyinhe Practical Printing Technology Series starts with the characteristics of flexographic printing and printing, and introduces in detail the characteristics, consumables, machinery, process requirements, common faults and solutions of each process before, during and after flexographic printing.