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    • 9. 发明申请
    • PROCESSING OF LITHOGRAPHIC PRINTING PLATES WITH HYDROPHILIC POLYMER IN FINISHER SOLUTION
    • 在完成溶液中加工具有疏水性聚合物的平版印刷板
    • WO2009065849A1
    • 2009-05-28
    • PCT/EP2008/065817
    • 2008-11-19
    • EASTMAN KODAK COMPANYSTREHMEL, BerndSIMPSON, ChristopherPIESTERT, OliverBAUMANN, Harald
    • STREHMEL, BerndSIMPSON, ChristopherPIESTERT, OliverBAUMANN, Harald
    • B41N3/08G03F7/40
    • B41N3/08G03F7/40
    • Process for the production of a lithographic printing plate, comprising (a) providing a lithographic printing plate precursor comprising (i) a substrate; (ii) a radiation-sensitive coating comprising one or more layers and (iii) optionally an oxygen-impermeable overcoat; (b) image-wise exposing the lithographic printing plate precursor to radiation of a wavelength to which the radiation-sensitive coating is sensitive; (c) optionally subjecting the image-wise exposed precursor to a preheat treatment and/or rinsing with water; (d) removing the non-image areas from the image-wise exposed precursor by means of an alkaline developer solution; (e) optionally subjecting the imaged precursor obtained in step (d) to rinsing with water; (f) treating the imaged lithographic printing plate obtained in step (d) or (e) with a finisher solution; and (g) optionally subjecting the finisher treated plate obtained in step (f) to at least one further process step selected from rinsing with water, drying and baking; characterized in that the finisher solution comprises 0.01 to 15 wt.%, based on the total weight of the finisher, of a hydrophilic polymer comprising: (ml) primary, secondary and/or tertiary amino groups, and (m2) acid groups selected from -COOH, -SO 3 H, -PO 2 H 2 and PO 3 H 2 , and (m3) optionally alkylene oxide units -(CHR 1 -CH 2 -O) P -, wherein each R 1 independently represents H or -CH 3 and p is an integer from 1 to 50.
    • 制备平版印刷版的方法,包括(a)提供平版印刷版原版,其包含(i)基底; (ii)包含一层或多层的辐射敏感涂层和(iii)任选的不透氧外涂层; (b)将平版印刷版前体成像曝光于对辐射敏感涂层敏感的波长的辐射; (c)任选地使成像曝光的前体经受预热处理和/或用水冲洗; (d)通过碱性显影剂溶液从图像曝光的前体中除去非图像区域; (e)任选地使步骤(d)中获得的成像前体用水冲洗; (f)用整理剂溶液处理步骤(d)或(e)中获得的成像平版印刷版; 和(g)任选地将步骤(f)中获得的整理剂处理的板处理至少一个选自用水漂洗,干燥和烘烤的其它工艺步骤; 其特征在于,整理剂溶液包含基于整理剂总重量的0.01至15重量%的亲水性聚合物,其包含:(ml)伯,仲和/或叔氨基,和(m2)选自 -COOH,-SO 3 H,-P 2 H 2,PO 3 H 2,(m 3)任选地是环氧烷单元 - (CHR 1 -CH 2 -O)P - ,其中每个R 1独立地表示H或-CH 3,p是1至50的整数。