| 摘要 |
A directly imageable planographic printing plate precursor (P1) has at least a heat sensitive layer (L1) on a substrate. (L1) Contains a light-to-heat conversion material, a binder polymer and either a cross-linked structure (a) or a composition comprising an organic compound containing at least one metal containing organic compound (b) and an active hydrogen group containing compound (c). A directly imageable planographic printing plate precursor (P1) has at least a heat sensitive layer (L1) on a substrate. (L1) Contains a light-to-heat conversion material, a binder polymer and either a cross-linked structure (a) or a composition comprising an organic compound containing at least one metal containing organic compound (b) and an active hydrogen group containing compound (c). The composition is capable of reacting under the influence of laser irradiation to form (a). The binder polymer is vinyl polymer, unvulcanized rubber, peroxide, polyester, polyurethane or polyamide. An independent claim is included for preparation of planographic printing plates involving exposing (P1), developing and dyeing the image region on the planographic printing plates using a dye liquid. |
