| 摘要 |
Apparatus for and a method of cutting out self-adhesive labels (14) pre-printed on label stock (14) laminated with a release sheet (12) includes a plurality of cutting heads (21) each of which is controlled by a computer storing a digitised representation of the required label shape. Each cutting head (21) is supplied with a laser beam (25) and serves to focus and deflect that beam onto the web (10) of label stock. The power of the laser beam is controlled so that the beam cuts through only the label stock (11) and not the release sheet (12) with which that stock is laminated. Each cutting head (21) is configured to cover only a part of the overall width of the label stock so that there will be only small variations in the path length of the laser beam from the cutting head (21) to the label stock (11), so allowing good control of the focus and cutting power of the beam. |
