| 摘要 |
The invention concerns a punch form for die-cutting of packaging material ( 5 ), comprising cutting knives ( 2 ) and/or scoring rules, the punch form ( 1 ) is at least partly dressed with sheet material ( 4 ) which is arranged in the punch form ( 1 ) so that crack reducing of the packaging material ( 5 ) is achieved at lease in connection to the cutting knives ( 2 ) and/or scoring rules. The friction and the adhesion between the sheet material ( 4 ) and the packaging material ( 5 ) is so low that a relative sliding can occur between the sheet material ( 4 ) and the packaging material ( 5 ) during the die-cutting course, which includes a combined ejecting and cleaning course. |
