Lithographic printing plate precursor and method of producing lithographic printing plate

    公开(公告)号:US11458757B2

    公开(公告)日:2022-10-04

    申请号:US16802499

    申请日:2020-02-26

    IPC分类号: B41N1/14 G03F7/027 G03F7/11

    摘要: A lithographic printing plate precursor includes an image recording layer on a support, in which the lithographic printing plate precursor has projections which are discontinuously formed on a surface of an outermost layer on a side where the image recording layer is provided, and a melting point of each projection is in a range of 70° C. to 150° C.
    A method of producing a lithographic printing plate includes a step of image-wise exposing the lithographic printing plate precursor to form an exposed portion and an unexposed portion, and a step of supplying at least one of printing ink or dampening water to remove the unexposed portion.