公开(公告)号：US20040103801A1

公开(公告)日：2004-06-03

申请号：US10609732

申请日：2003-06-30

Applicant: Kodak Polychrome Graphics, LLC

Inventor： Nicki R. Miller ,  Barbara Nussel ,  Jianbing Huang

IPC: B41F001/00 ,  B41L001/00 ,  B41F001/18 ,  B41F007/00 ,  B41N003/00 ,  B41M005/00 ,  G03F007/24 ,  G03F007/38 ,  G03F007/027 ,  G03F007/038

CPC classification number: B41C1/1041 ,  Y10S430/145 ,  Y10S430/146 ,  Y10S430/165

Abstract: A direct-to-press imaging method comprises: (a) applying an imageable coating to a printing cylinder, wherein the imageable coating comprises a composition such as a thermally switchable polymer which changes affinity for a printing fluid upon exposure to imaging radiation such as infrared radiation delivered imagewise via a laser, and the imageable coating is substantially insoluble in the printing fluid; (b) imagewise exposing the imageable coating to actinic radiation to obtain an imaged coating; (c) printing a plurality of copies of an image from the imaged coating; and (d) reapplying the imageable coating as desired by repeating steps (a) through (c) at least once without substantially removing the prior imaged coating before reapplying the imageable coating.

Abstract translation: 直接成像成像方法包括：（a）将可成像涂层施加到印刷滚筒，其中可成像涂层包括诸如可热切换聚合物的组合物，其在暴露于诸如红外线的成像辐射时改变对印刷液体的亲和​​性 通过激光成像的辐射辐射，可成像的涂层基本上不溶于印刷液体; （b）将可成像的涂层成像曝光于光化辐射以获得成像的涂层; （c）从成像的涂层印刷多张图像的副本; 和（d）通过重复步骤（a）至（c）至少一次，根据需要重新施加可成像涂层，而在重新施加可成像涂层之前基本上不去除现有的成像涂层。