| 摘要 |
PROBLEM TO BE SOLVED: To provide an anti-staining sheet, with which nearly all poor marking due to the transferring of the scumming on a marking roll is eliminated, no scratching onto a product film develops and which can be used durably, and a mark printing method using the sheet. SOLUTION: In this mark printing method, the anti-staining sheet made by laminating tetrafluoreoethylene sheets on both sides of a polyethylene terephthalate sheet is pinched between contact faces of the mark roll carrying a printing plate and a conveying roll for conveying a plastic film, i.e., between the plastic film and the mark roll. In this case, a printing site and its vicinity of the polyethylene terephthalate sheet are cut out.
|
