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    • 5. 发明授权
    • Process for producing negative and positive original images on a bilevel
printing plate utilizing non-silver halide layer and silver halide
overlayer
    • 在使用非卤化银层和卤化银覆盖层的双层印版上产生负和正的原始图像的方法
    • US5330875A
    • 1994-07-19
    • US57592
    • 1993-05-05
    • Michael W. AdelmanRobert W. HallmanSuck-Ju HongKen-Ichi ShimazuBurton H. Waxman
    • Michael W. AdelmanRobert W. HallmanSuck-Ju HongKen-Ichi ShimazuBurton H. Waxman
    • G03F7/095G03F7/30
    • G03F7/0952
    • A lithographic printing plate precursor and process for its utilization have been discovered through which negative and positive original images can be printably reproduced on the plate precursor in substantially fewer development steps. The precursor plate is exposed sequentially to either the negative or positive original with the resultant image subsequently developable in a single process or step. The process is achieved by using a precursor plate having two coatings of significantly different photographic sensitivity to light, i.e., speed as characterized by "camera speed" or "contact speed" and imagewise exposing the originals in sequence to alternative speeds. The contact speed coating may be negative-working or positive working while the camera speed coating is negative-working. The camera speed coating is developed followed by exposure of the contact speed coating. Images produced at camera speed are removed and non-image bearing portions of the contact speed coating are removed. The remaining image areas corresponding to the negative and positive originals are treated to provide positive printable images.
    • 已经发现了平版印刷版前体及其应用的方法,通过该平版印刷版前体及其正在使用的原始图像能够以显着更少的显影步骤在印版前体上可印刷再现。 前体板依次暴露于负片或正版原件,随后所得图像可在单一工艺或步骤中显影。 该方法通过使用具有对光的感光敏感度显着不同的两个涂层的前体板来实现,即,以“相机速度”或“接触速度”为特征的速度,并将原稿成像地曝光到替代速度。 接触速度涂层可能是负作用或正向工作,而相机速度涂层是负作用的。 开发相机速度涂层,然后曝光接触速度涂层。 去除以相机速度产生的图像,并且去除接触速度涂层的非图像承载部分。 处理与正和负的原稿对应的剩余图像区域以提供可打印的图像。
    • 10. 发明授权
    • Image-forming composite with film
    • 成像复合材料与薄膜
    • US4564589A
    • 1986-01-14
    • US577536
    • 1984-02-06
    • Robert W. HallmanEugene L. LanglaisPatrick G. Warner
    • Robert W. HallmanEugene L. LanglaisPatrick G. Warner
    • G03F1/56G03C1/82
    • G03F1/56Y10S430/146
    • An image-forming composite image member and subtractive photo process employing that composite, in which composite, a spectrally reflective light-blocking layer, a secondary thin optically functional layer and a subtractive photosensitive layer are carried on a base in an association, in which the reflective layer and the secondary layer cooperate after imagewise exposure and development to define an image member in which the secondary layer and reflector layer may provide a guide to orientation of the composite and may provide a unique polarity-reversing ability to display both a negative and a positive image. In a preferred form, the reflective and secondary layers provide superior uniform light-blocking with a minimum combined thickness, and also cooperate in the photo process during the development to insure rapid and complete clearing of areas with at most minimal mechanical action under portions of the photosensitive layer which are soluble after imagewise exposure and have been removed in development.
    • 使用该复合物的图像形成复合图像构件和减去光学处理,其中复合材料,光谱反射阻挡层,次级光学功能层和减去感光层在基底上携带,其中 反射层和次层在成像曝光和显影之后配合以限定图像构件,其中次级层和反射层可以为复合材料的取向提供引导,并且可以提供独特的极性反转能力以显示阴性和 积极的形象。 在优选形式中,反射层和次级层提供了具有最小组合厚度的优异的均匀光阻,并且还在显影过程中在照相过程中配合以确保快速和完全地清除具有最小机械作用的区域 感光层,其在成像曝光后可溶,并在显影中被除去。