| 摘要 |
<p>A method of forming a scored line (31) on a sheet (30) of scorable material comprising the step of passing the sheet (30) through the nip of a pair of contra-rotating rolls (5, 20), characterised in that one of the rolls (5, 20) has a hard surface and the other of the rolls (5, 20) has a resilient surface (11) and in that one of the rolls (5, 20) has at least one scoring element (17) extending over its surface.</p> |
