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    • 9. 发明授权
    • Process for preparing a lithographic printing plate with a thiourea
wetting solution
    • 用硫脲润湿溶液制备平版印刷版的方法
    • US4177072A
    • 1979-12-04
    • US912150
    • 1978-06-02
    • Yoshihiro OnoShigeo HaradaYuzo MizobuchiTomoaki Ikeda
    • Yoshihiro OnoShigeo HaradaYuzo MizobuchiTomoaki Ikeda
    • B41N3/08G03C1/705G03F7/004G03F7/02G03C5/24
    • B41N3/08G03C1/705G03F7/0044
    • A process for preparing a lithographic printing plate, which has excellent printability, durability and stability, which comprisingimagewise irradiating a lithographic printing plate material comprising a support having thereon a light-sensitive layer comprising, as essential components, (a) an inorganic material and (b) at least one member selected from the group consisting of a metal and a metal compound, both of which are in contact with each other and which, upon irradiation with electromagnetic radiation, react with each other forming a mutually diffused state and as a result, a difference in the hydrophilic property or in the oleophilic property occurs between the areas irradiated with the electromagnetic radiation and the non-irradiated areas, with electromagnetic radiation, andthen wetting the light-sensitive layer thereof with wetting solution containing (i) at least one compound selected from the group consisting of thiourea and a thiourea derivative and (ii) as an acid component, at least one compound selected from the group consisting of an inorganic acid, an acidic inorganic salt, and an organic acid.
    • 一种制备平版印刷版的方法,其具有优异的可印刷性,耐久性和稳定性,其包括成像照射平版印刷版材料,所述平版印刷版材料包含其上具有光敏层的载体,所述载体包含作为必要组分的(a)无机材料和 (b)选自金属和金属化合物中的至少一种,两者彼此接触并且在电磁辐射照射时彼此反应形成相互扩散的状态,并且作为 结果,在用电磁辐射照射的电磁辐射区域和未照射区域之间发生亲水性或亲油性的差异,然后用润湿溶液润湿其感光层,所述润湿溶液含有(i) 选自硫脲和硫脲衍生物的至少一种化合物和(ii)作为酸性的 选自由无机酸,酸性无机盐和有机酸组成的组中的至少一种化合物。