1.PE coating: that is, the base paper (white paper) is coated with a coating machine on the PE film. The paper that is copied on one side is called single-sided PE coated paper, and the paper coated on both sides is called double-sided PE coated paper.
2. Slitting: Use a slitting machine to cut the coated paper into rectangular pieces of paper (used for the wall of the paper cup) and web paper (used for the bottom of the paper cup).
3. Printing: use offset printing machine or gravure printing machine to print various patterns on rectangular paper sheets.