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    • 6. 发明授权
    • PS plate and method for processing same
    • PS板及其加工方法
    • US5464724A
    • 1995-11-07
    • US91358
    • 1993-07-15
    • Keiji AkiyamaNoriaki WatanabeHisashi HottaTadao ToyamaNobuyuki Nishimiya
    • Keiji AkiyamaNoriaki WatanabeHisashi HottaTadao ToyamaNobuyuki Nishimiya
    • G03F7/00B41N1/08B41N3/03G03F7/09G03F7/11G03F7/30G03F7/32G03C1/77
    • B41N1/083B41N3/03
    • A PS plate comprises an aluminum substrate having anodized layers on both sides, a photosensitive layer on one side of the substrate and a coating layer of a metal oxide obtained by hydrolyzing and polycondensing an organic or inorganic metal compound on the side of the substrate opposite to that carrying the photosensitive layer. The PS plate is processed by a method comprising the steps of imagewise exposing it to light and then developing the imagewise exposed plate with an alkali aqueous solution containing an alkali metal silicate and having a pH of not less than 12. The PS plate and the method for processing the same permit substantial reduction of the amount of a replenisher for development to be supplemented and ensure a stable processing of the plate over a long time period without accompanying formation of insolubles in a developer. The PS plates never cause adhesion and peeling off of the photosensitive layers even when they are put in stacks. Moreover, the PS plate does not suffer from a problem of contamination of the back face due to adhesion of lipophilic substances such as a developing ink.
    • PS板包括铝基板,其两侧具有阳极化层,在基板的一侧上的感光层和金属氧化物的涂层,所述金属氧化物通过将有机或无机金属化合物水解和缩聚在与基板相对的一侧上的有机或无机金属化合物 携带感光层。 PS板通过包括以下步骤的方法进行处理:将成像曝光到光,然后用含有碱金属硅酸盐的碱性水溶液显影成像曝光的平板,并且pH值不小于12.P板和方法 为了加工相同的许可证,可显着减少用于补充的补充剂的量,并确保板在长时间内的稳定加工,而不伴随在显影剂中形成不溶物。 即使将它们放入堆叠中,PS板也不会引起感光层的粘附和剥离。 此外,PS板不会由于诸如显影油墨等亲油性物质的粘附而遭受背面污染的问题。