| 摘要 |
PURPOSE: To reduce the rate at which inferior product quality arises due to dull cutting blades by stacking a plurality of photosensitive planographic plates having a photosensitive layer formed over their metal support, and cutting the stacked photosensitive planographic plates with a cutting blade having a specific coefficient of friction. CONSTITUTION: When a plurality of photosensitive planographic plates 7 having a metal support and stacked are placed on a stand 5, the plates 7 stacked are made to abut to a back stopper 3 and aligned, and a cutting blade 1 is lowered in the vertical direction relative to the stand 5 by a cutting-blade drive to cut all the planographic plates 7 at a time. The plates 7 stacked are held from above by a stopper 2 that can be moved vertically via a spring 23, to ensure a stable cutting operation. In such a cutting method, the flank 12 of the cutting blade 1 is made to have a coefficient of friction of 0.3 or less, and for that purpose the flank 11 of the cutting blade 1 facing a product 71 is coated with wax, fatty-acid wax, or the like as necessary. |
