| 摘要 |
PROBLEM TO BE SOLVED: To provide a regenerative system plate making and printing method on a printing machine. SOLUTION: (A) A photosensitive plate material comprising a positive photosensitive composition is supplied and applied from a plate material supplying mechanism (4) on a support (3) fixed on a plate cylinder (21) to form a photosensitive planographic printing plate. (B) The photosensitive planographic printing plate is imagewise exposed with an exposure mechanism (5) and (C) a processing agent for plate making is supplied from a processing agent supplying mechanism onto the imagewise exposed photosensitive planographic printing plate, a physical impetus is give if necessary and an image is formed. (D) Printing ink and dampening water are supplied from an ink supplier (6) and a dampening device (7) to the surface of the image on the photosensitive planographic printing plate, the plate cylinder (21), a blanket cylinder (22) and a platen (23) are rotated under contact and printing paper is supplied between the blanket cylinder (22) and the platen (23) to carry out printing, and (E) the image area on the support (3) is removed with plate material removing mechanisms (81)-(85) to regenerate the support. |
