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    • 89. 发明授权
    • Printing plate material and production and regenerating methods thereof
    • 印版材料及其生产和再生方法
    • US06851364B1
    • 2005-02-08
    • US09646876
    • 2000-02-07
    • Yasuharu Suda
    • Yasuharu Suda
    • B41C1/10B41N1/00B41N1/14
    • B41C1/1041B41N1/006
    • A printing plate material which can be adapted to digitization of the printing process and recycled and a method for renewing it. As the printing plate material, there can be used one which includes a substrate on the surface of which a coat layer containing a titanium oxide photocatalyst and at least one member selected from salts or oxides of Fe2+, Ni2+, Mn2+, Cr3+, and Cu2+ is formed. In an initial state of the printing plate as prepared, it is adjusted to a state where the surface of the coat layer is hydrophobic. This surface is irradiated with ultraviolet rays to convert a part of the surface to a hydrophilic surface. This conversion is performed based on digital data corresponding to an image to be printed. In this case, the hydrophobic portion is used as a printing image portion and the hydrophilic portion is used as a non-printing image portion. After completion of the printing, the compound is applied again to change the surface of the coat layer into the initial state of the printing plate as prepared, in which the surface of the coat layer exhibits hydrophobicity again.
    • 可适用于打印过程数字化并再循环的印版材料及其更新方法。 作为印刷版材料,可以使用其表面上具有含有氧化钛光催化剂的涂层和选自Fe 2+,Ni 2+等的盐或氧化物中的至少一种的基板, ,Mn 2+,Cr 3+和Cu 2+。 在制备的印版的初始状态下,将其调整到涂层的表面是疏水性的状态。 用紫外线照射该表面以将表面的一部分转化为亲水表面。 基于与要打印的图像对应的数字数据进行该转换。 在这种情况下,疏水部分用作打印图像部分,并且亲水部分用作非打印图像部分。 印刷完成后,再次施加化合物,将涂层的表面改变成印刷版的初始状态,其中涂层的表面再次呈现疏水性。