DEVELOPING MIXTURE, AND PREPARATION OF LITHOGRAPHIC PRINTING PLATES WITH THIS DEVELOPER
    1.
    发明申请
    DEVELOPING MIXTURE, AND PREPARATION OF LITHOGRAPHIC PRINTING PLATES WITH THIS DEVELOPER 审中-公开
    开发混合物,以及与该开发商的平版印刷机的制备

    公开(公告)号:WO2004051373A3

    公开(公告)日:2004-09-02

    申请号:PCT/US0338260

    申请日:2003-12-01

    Abstract: Processes for imaging and developing imageable elements useful as lithographic printing plate precursors either thermally or with ultraviolet radiation that use the same developer are disclosed. The imageable elements comprise a top layer and an underlayer. The top layer contains a phenolic polymer and a material that has either the o-benzoquinonediazide functionality or the o-diazonaphthoquinone functionality. The developer is a 20:80 to 80:20 mixture of (1) an aqueous alkaline developer that has a pH greater than 11 and contains about 2 wt% to about 8 wt% of an alkali metal silicate, and (2) a solvent based developer that contains about 0.5 wt% to about 15 wt% of an organic solvent or mixture of organic solvents.

    Abstract translation: 公开了用于成像和显影用作平版印刷版前体的可成像元件的方法,其可以使用与使用相同显影剂的热辐射或紫外线辐射。 可成像元件包括顶层和底层。 顶层含有酚类聚合物和具有邻苯醌二叠氮化物官能团或邻重氮萘醌功能的材料。 显影剂是(1)pH大于11且含有约2重量%至约8重量%碱金属硅酸盐的水性碱性显影剂的20:80至80:20的混合物,和(2)溶剂 其含有约0.5wt%至约15wt%的有机溶剂或有机溶剂的混合物。

    THERMAL LITHOGRAPHIC PRINTING PLATE
    2.
    发明申请
    THERMAL LITHOGRAPHIC PRINTING PLATE 审中-公开
    热平面印刷板

    公开(公告)号:WO9967097A3

    公开(公告)日:2000-04-27

    申请号:PCT/US9912689

    申请日:1999-06-08

    Abstract: A thermal lithographic printing plate, which can be imaged by thermal energy typically by imagewise exposure with an infrared emitting laser, a thermal printing head, etc., is made up of a hydrophilic substrate, and a composite layer structure composed of two layer coatings. Preferably, the first layer of the composite is composed of an aqueous developable polymer mixture containing a photothermal conversion material which is contiguous to the hydrophilic substrate. The second layer of the composite is composed of one or more non-aqueous soluble polymers which are soluble or dispersible in a solvent which does not dissolve the first layer. The plate is exposed with an infrared laser or a thermal print head, and upon aqueous development of the imaged plate, the exposed portions are removed exposing hydrophilic substrate surfaces receptive to conventional aqueous fountain solutions. The unexposed portions contain the ink-receptive image areas. Alternatively, the composite layer may be free of photothermal conversion material when thermal imaging is carried out using a thermal printing head.

    Abstract translation: 可以通过热能成像通过用红外发射激光成像曝光,热打印头等来成像的热平版印刷版由亲水基材和由两层涂层组成的复合层结构构成。 优选地,复合材料的第一层由包含与亲水基底邻接的光热转换材料的水性可显影聚合物混合物组成。 复合材料的第二层由一种或多种可溶于或不溶于不溶于第一层的溶剂中的非水溶性聚合物组成。 该板用红外激光或热打印头曝光,并且在成像板的水性显影时,去除曝光部分,暴露接受常规水性喷泉溶液的亲水底物表面。 未曝光部分包含吸墨图像区域。 或者,当使用热敏打印头进行热成像时,复合层可以不含光热转换材料。

    ELEMENTO DE FORMACION TERMICA DE IMAGENES Y PRECURSOR DE PLACA LITOGRAFICA.

    公开(公告)号:ES2253895T3

    公开(公告)日:2006-06-01

    申请号:ES99928429

    申请日:1999-06-08

    Abstract: Un elemento de formación térmica de imágenes que funciona como positivo, que comprende: (A) un sustrato y (B) una estructura laminar compuesta sensible térmicamente, que tiene una superficie interior contigua al sustrato y una superficie exterior, comprendiendo la estructura laminar compuesta: (a) una primera capa que tiene la superficie interior, comprendiendo la primera capa un primer material polimérico y un material de conversión fototérmica, siendo el primer material polimérico soluble o dispersable en una solución acuosa, y (b) una segunda capa que tiene la superficie exterior, comprendiendo la segunda capa un segundo material polimérico, siendo la segunda capa insoluble en la solución acuosa, en el que primero se aplica la primera capa, que contiene el material de conversión fototérmica, y posteriormente se aplica la segunda capa, en el que, tras calentar la estructura laminar compuesta, la estructura laminar compuesta queda provista de porciones calentadas y porciones complementarias no calentadas, y en el que las porciones calentadas tienen una velocidad incrementada de separación en la solución acuosa.

    PREPARATION OF LITHOGRAPHIC PRINTING PLATES

    公开(公告)号:AU2003293236A1

    公开(公告)日:2004-06-23

    申请号:AU2003293236

    申请日:2003-12-01

    Abstract: Processes for imaging and developing imageable elements useful as lithographic printing plate precursors either thermally or with ultraviolet radiation that use the same developer are disclosed. The imageable elements comprise a top layer and an underlayer. The top layer contains a phenolic polymer and a material that has either the o-benzoquinonediazide functionality or the o-diazonaphthoquinone functionality. The developer is a 20:80 to 80:20 mixture of (1) an aqueous alkaline developer that has a pH greater than 11 and contains about 2 wt % to about 8 wt % of an alkali metal silicate, and (2) a solvent based developer that contains about 0.5 wt % to about 15 wt % of an organic solvent or mixture of organic solvents.

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