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公开(公告)号：US5362602A
公开(公告)日：1994-11-08
申请号：US155222
申请日：1993-11-22
申请人： Paul J. Coppens , Joan T. Vermeersch , Luc H. Leenders , Ludovicus H. Vervloet , Eric M. Hoes , Eddie R. Daems
发明人： Paul J. Coppens , Joan T. Vermeersch , Luc H. Leenders , Ludovicus H. Vervloet , Eric M. Hoes , Eddie R. Daems
CPC分类号： G03F7/07 , Y10S430/151
摘要： Method for making lithographic aluminum offset printing plates according to the DTR-process by photo-exposing a photosensitive monosheet layer assemblage comprising a hydrophilic aluminum foil, an intermediate layer comprising hydrophobic polymer beads prepared by polymerization of ethylenically unsaturated monomer(s) and having an average diameter not lower than 0.2 .mu.m, and a silver halide emulsion layer, applying an aqueous alkaline solution to the photo-exposed silver halide emulsion layer in the presence of a developing agent and a silver halide solvent to form a silver image and to allow unreduced silver halide or complexes formed thereof to diffuse image-wise from the developed silver halide emulsion layer to said aluminum foil to produce thereon a silver image, and separating said emulsion layer and said intermediate layer from the imaged aluminum foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.
摘要翻译： 根据DTR方法制造平版印刷铝胶印版的方法，通过光敏曝光包含亲水性铝箔的感光单层组合物，包含通过烯键式不饱和单体的聚合制备并具有平均值的疏水聚合物珠粒的中间层 直径不小于0.2μm，以及卤化银乳剂层，在显影剂和卤化银溶剂的存在下，将曝光后的卤化银乳剂层施加碱性水溶液以形成银图像并允许未还原 卤化银或其形成的络合物从成像的卤化银乳剂层向所述铝箔成像扩散以在其上产生银图像，并将所述乳剂层和所述中间层与成像的铝箔分离。 本发明还涉及用于制造这种印版的感光单片层组合件。
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2.发明授权
公开(公告)号：US5402725A
公开(公告)日：1995-04-04
申请号：US889077
申请日：1992-05-20
摘要： This invention provides a lithographic base comprising a support provided with a hardened hydrophilic layer wherein the hardened hydrophilic layer comprises a dextran or pullulan modified with a group containing amine or amide functions having at least one free hydrogen.
摘要翻译： 本发明提供一种平版印刷基底，其包括具有硬化的亲水层的载体，其中硬化的亲水层包含用含有至少一个游离氢的胺或酰胺官能团改性的葡聚糖或支链淀粉。
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公开(公告)号：US5273858A
公开(公告)日：1993-12-28
申请号：US783244
申请日：1991-10-28
申请人： Paul J. Coppens , Joan T. Vermeersch , Luc H. Leenders , Ludovicus H. Vervloet , Eric M. Hoes , Eddie R. Daems
发明人： Paul J. Coppens , Joan T. Vermeersch , Luc H. Leenders , Ludovicus H. Vervloet , Eric M. Hoes , Eddie R. Daems
CPC分类号： G03F7/07 , Y10S430/151
摘要： Method for making lithographic aluminum offset printing plates according to the DTR-process by photo-exposing a photosensitive monosheet layer assemblage comprising a hydrophilic aluminum foil, an intermediate layer comprising hydrophobic polymer beads prepared by polymerization of ethylenically unsaturated monomer(s) and having an average diameter not lower than 0.2 .mu.m, and a silver halide emulsion layer, applying an aqueous alkaline solution to the photo-exposed silver halide emulsion layer in the presence of a developing agent and a silver halide solvent to form a silver image and to allow unreduced silver halide or complexes formed thereof to diffuse imagewise from the developed silver halide emulsion layer to said aluminum foil to produce thereon a silver image, and separating said emulsion layer and said intermediate layer from the imaged aluminum foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.
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4.发明授权
公开(公告)号：US4970133A
公开(公告)日：1990-11-13
申请号：US256970
申请日：1988-10-13
IPC分类号： B41N1/08 , C08K3/34 , C08K5/00 , C08K5/22 , C08K5/5419 , C08K13/02 , C08L29/04 , C08L33/04 , C08L33/08 , C08L101/00 , C09D129/04 , G03F7/00 , G03F7/016 , G03F7/075
CPC分类号： G03F7/016
摘要： Presensitized imaging element comprising a support and a light-sensitive hyrophilic layer thereon, said light-sensitive hydrophilic layer containing in homogeneously distributed state throughout the entire layer a hydrophilic (co)polymer or (co)polymer mixture, a tetraalkyl orthosilicate crosslinking agent in an amount of at least 0.2 parts by weight per part by weight of hydrophilic (co)polymer or (co)polymer mixture and a low-molecular weight diazonium salt and preferably also (a) substance(s) that increase(s) the mechanical strength and the porosity of the layer, by means of which a lithographic printing plate can be produced by imagewise exposing said imaging element to an ultraviolet radiation source, subsequently bringing it in the presence of an aqueous liquid in contact with a receptor element comprising a receiving layer containing a polyionic mordant for the diazonium salt and separating it from the receiving layer to leave the residual non-exposed diazonium salt on the receiving layer.
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公开(公告)号：US5270354A
公开(公告)日：1993-12-14
申请号：US783350
申请日：1991-10-28
IPC分类号： C08J3/05 , C08J3/12 , C08J3/215 , G03C1/005 , G03C1/04 , G03C1/835 , G03F7/027 , G03F7/038 , C08J3/02 , C08K3/20 , C08L23/00
摘要： Method of making aqueous dispersions of hydrophobic polymer particles loaded with at least one hydrophobic compound, comprising the consecutive steps of dissolving said at least one hydrophobic compound in a water-immiscible organic solvent medium, dispersing the solution obtained in water or in an aqueous medium to form a dispersed phase having an average droplet size lower than 5 .mu.m, mixing the resulting dispersion with a dispersion of hydrophobic polymer particles in water or in an aqueous medium, said hydrophobic polymer particles being swellable in said water-immiscible solvent medium and having an average particle diameter ranging from 0.02 to 5.0 .mu.m, stirring the mixture obtained to allow said hydrophobic compound to associate with said hydrophobic polymer particles, and removing said water-immiscible organic solvent medium by evaporation.
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公开(公告)号：US4879209A
公开(公告)日：1989-11-07
申请号：US133080
申请日：1987-12-15
摘要： The present invention provides a method of hardening a proteinaceous layer of a photographic silver halide element by incorporating a modified dextran in said proteinaceous layer, said modified dextran being the reaction product of dextran and an alkyl haloformate, a substituted alkyl haloformate, an aryl haloformate, or a substituted aryl haloformate. The invention also provides a photographic element comprising a said reaction product in at least one proteinaceous silver halide emulsion layer and/or in another proteinaceous layer coated thereon.
摘要翻译： 本发明提供了一种通过在所述蛋白质层中引入修饰的葡聚糖来硬化照相卤化银元素的蛋白质层的方法，所述修饰的葡聚糖是葡聚糖和卤代甲酸烷基酯的反应产物，卤代甲酸取代的烷基酯，卤代甲酸芳基酯， 或卤代甲酰基取代的芳基。 本发明还提供一种照相元件，其包含在至少一种蛋白质卤化银乳剂层中和/或在其上涂覆的另一种蛋白质层中的所述反应产物。
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公开(公告)号：US4820613A
公开(公告)日：1989-04-11
申请号：US79081
申请日：1987-07-29
摘要： The present invention provides a method of hardening a proteinaceous surface layer of a photographic silver halide element by incorporating a dextran derivative in said proteinaceous surface layer, said dextran derivative being the reaction product of dextran and an epihalohydrin. The invention also provides a photographic element comprising at least one silver halide emulsion layer and at least one proteinaceous surface layer comprising the reaction product of dextran and an epihalohydrin.
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公开(公告)号：US5254434A
公开(公告)日：1993-10-19
申请号：US783243
申请日：1991-10-28
摘要： Method of forming thermal transfer dye images comprising exposing a recording element comprising at least one layer of an organic photochemical imaging composition comprising a heat-diffusible dye (precursor) monomer, said layer being permeable to said dye (precursor) monomer, to an image-wise distribution of actinic radiation to create a change in its permeability corresponding to said image-wise distribution of actinic radiation, wherein said change in permeability is brought about by the radiation-induced polymerization or crosslinking reaction of said organic photochemical imaging composition combined with a concurrent copolymerization or crosslinking reaction of said heat-diffusible dye (precursor) monomer, bringing said recording element in contact with an image-receiving element, overall heating at least one of said contacting elements to cause diffusion of the heat-diffusible dye (precursor) monomer from the areas having unchanged permeability and transfer to said image-receiving element, causing in the case of said dye precursor monomer reaction of said transferred dye precursor monomer with a reagent present in said recording element, in said image-receiving element, or in a fluid medium applied to said image-receiving element, to convert said transferred dye precursor monomer into a dye. The invention also provides a recording element for use according to this method.
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公开(公告)号：US5409799A
公开(公告)日：1995-04-25
申请号：US897936
申请日：1992-06-15
摘要： According to the present invention a method is provided for obtaining an image comprising the steps of:information-wise exposing an imaging element comprising on a support a photosensitive layer containing a photopolymerizable composition and a base layer located between said support and said photosensitive layer and wherein said base layer is contiguous to said photosensitive layer and comprises a polymer containing polymerizable ethylenically unsaturated groups andtransferring upon heating the non-hardened or insufficiently hardened parts of said photosensitive layer to an image receiving material. When the image receiving material contains a hydrophilic surface a lithographic printing plate can be obtained.
摘要翻译： 根据本发明，提供了一种用于获得图像的方法，包括以下步骤：将包含在载体上的成像元件信息地曝光，所述成像元件包含位于所述载体和所述感光层之间的含有可光聚合组合物的感光层和其中， 所述基底层与所述感光层邻接并且包括含有可聚合的烯键式不饱和基团的聚合物，并且将所述感光层的未硬化或不充分硬化的部分加热转印到图像接收材料上。 当图像接收材料含有亲水性表面时，可以获得平版印刷版。
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公开(公告)号：US5151405A
公开(公告)日：1992-09-29
申请号：US658584
申请日：1991-02-21
CPC分类号： B41M5/395 , Y10S428/913 , Y10S428/914 , Y10T428/31786 , Y10T428/31971
摘要： Dye-donor element for use in thermal dye sublimation transfer methods, said element comprising a support having thereon a dye/binder layer comprising a dye carried by at least one modified dextran binder.
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