| 摘要 |
<p>Blanket for rotary printing machine, for example for offset machine, provided with a perforation device, characterized in that said blanket (10) is provided with at least one groove (11) opening to its printing face (10a) and in the bottom of which there is housed a bar or strip (12) made of a hard and non-compressible material, said bar having an upper face (12a) against which are in pressure contact the perforating or cutting elements (15d) of the perforating rules (15) fixed to the printing cylinder (5) or pressure cylinder, or margin cylinder of the machine, during the printing process. The invention also relates to the perforation method using the blanket hereabove defined, in association with at least one perforating rule (15) fixed to the printing cylinder of the machine.</p> |
