公开(公告)号：US06261733B1

公开(公告)日：2001-07-17

申请号：US09562945

申请日：2000-05-03

申请人： Paul Coppens ,  Ludo Vervloet ,  Paul Callant

发明人： Paul Coppens ,  Ludo Vervloet ,  Paul Callant

IPC分类号： G03C806

CPC分类号： G03F7/07 ,  G03C8/06 ,  G03C8/44

摘要： According to the present invention, there is provided a silver salt diffusion transfer material, comprising on a hydrophilic surface of a support in the order given (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) a top layer containing gelatin, said silver halide emulsion being spectrally sensitized with a dye with a sensitizing maximum between 380 and 430 nm, characterized in that said top layer comprises a compound I and/or a compound II

摘要翻译： 根据本发明，提供了一种银盐扩散转移材料，其包含在载体的亲水表面上，其顺序为（i）含有物理显影核的图像接收层，（ii）含有卤化银的感光层 所述乳液与所述图像接受层呈水可渗透关系，和（iii）含有明胶的顶层，所述卤化银乳剂用380至430nm之间的感光最大值的染料进行光谱增感，其特征在于所述顶层包含化合物 Iand /或化合物II

公开(公告)号：US5811216A

公开(公告)日：1998-09-22

申请号：US885956

申请日：1997-06-30

申请人： Paul Coppens ,  Ludo Vervloet

发明人： Paul Coppens ,  Ludo Vervloet

IPC分类号： G03F7/07 ,  G03C8/06 ,  G03C8/52

CPC分类号： G03F7/07

摘要： The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) an intermediate layer and (iii) a photosensitive layer containing one or more silver halide emulsions being in water permeable relationship with said image receiving layer, characterized in that said intermediate layer comprises at least 0.08 mmole/m.sup.2 of a bromide salt.

摘要翻译： 本发明提供了一种成像元件，其特征在于，以支撑体的亲水表面（i）包含物理显影核的图像接收层，（ii）中间层和（iii）含有一种或多种卤化银 与所述图像接收层处于水可渗透关系的乳液，其特征在于所述中间层包含至少0.08mmole / m 2的溴化物盐。

公开(公告)号：US06544719B2

公开(公告)日：2003-04-08

申请号：US10174249

申请日：2002-06-18

申请人： Paul Coppens ,  Ludo Vervloet

发明人： Paul Coppens ,  Ludo Vervloet

IPC分类号： G03F736

CPC分类号： B41C1/1033 ,  G03C1/74 ,  Y10S430/136

摘要： A cost efficient method of making a lithographic printing plate precursor is disclosed, the method comprising the steps of coating a silver halide emulsion layer on a hydrophilic base which is provided with physical development nuclei; simultaneously with the preceding step, coating on the emulsion layer a solution that induces silver salt diffusion transfer reversal development of the silver halide; allowing diffusion of complexed silver ions to the physical development nuclei, thereby forming silver metal that is deposited on the hydrophilic base; a wash-off step wherein the emulsion layer is removed from the silver metal. The material thus obtained can be exposed image-wise in heat-mode, e.g. by means of an infrared laser, thereby ablating the silver metal and revealing the hydrophilic base at exposed areas. Immediately after exposure, it can be used as a lithographic printing plate without the need for a wet processing step.

摘要翻译： 公开了制备平版印刷版前体的成本有效的方法，该方法包括以下步骤：在设置有物理显影核的亲水基底上涂覆卤化银乳剂层;与前述步骤同时，在乳剂层上涂布溶液 其引起卤化银的银盐扩散转移反转发展;允许络合的银离子扩散到物理显影核，从而形成沉积在亲水基底上的银金属;洗去步骤，其中将乳剂层从 如此获得的材料可以以加热模式例如图像曝光 通过红外激光，从而消除银金属并在暴露的区域露出亲水基底。 暴露后立即可以将其用作平版印刷版，而不需要湿法处理步骤。

公开(公告)号：US06284426B1

公开(公告)日：2001-09-04

申请号：US08635792

申请日：1996-04-22

申请人： Paul Coppens ,  Ludo Vervloet

发明人： Paul Coppens ,  Ludo Vervloet

IPC分类号： G03F707

CPC分类号： G03C8/365 ,  G03C5/305 ,  G03F7/07 ,  G03F7/32

摘要： The present invention provides an alkaline processing solution comprising at least one silver halide solvent other than sulfite, characterized in that said alkaline processing solution further contains aluminium ions in an amount of at least 0.3 g/l. There is further provided a method for making a lithographic printing plate according to the DTR-process using an aqueous alkaline processing solution in the presence of at least one developing agent and at least one silver halide solvent, characterized in that said alkaline processing solution contains aluminium ions in an amount of at least 0.3 g/l.

摘要翻译： 本发明提供一种包含至少一种除亚硫酸盐以外的卤化银溶剂的碱性处理溶液，其特征在于，所述碱性处理溶液还含有至少0.3g / l量的铝离子。 还提供了一种在至少一种显影剂和至少一种卤化银溶剂的存在下，使用含水碱性处理溶液根据DTR方法制备平版印刷版的方法，其特征在于所述碱性处理溶液含有铝 离子的量至少为0.3g / l。

公开(公告)号：US6010818A

公开(公告)日：2000-01-04

申请号：US81572

申请日：1998-05-19

申请人： Paul Coppens ,  Ludo Vervloet

发明人： Paul Coppens ,  Ludo Vervloet

IPC分类号： G03F7/07 ,  G03C8/06 ,  G03C8/28

CPC分类号： G03F7/07

摘要： The present invention provides a method for making an offset printing plate according to the silver salt diffusion transfer process comprising the steps of:image-wise exposing an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei and (ii) a photosensitive layer comprising a photosensitive silver halide emulsion said photosensitive layer being in water permeable relationship with said image receiving layer,applying an aqueous alkaline solution to the imaging element in the presence of (a) developing agent(s) and (a) silver halide solvent(s) to form a silver image in said image receiving layer,treating the imaging element with a first lithographic finisher in order to remove the layer(s) on top of the image receiving layer, thereby exposing the imaged surface of the support by uncovering said silver image formed in said image receiving layer,treating said exposed imaged surface of the support with a second lithographic finisher to enhance the water-receptivity of the non-image areas and to make the image areas oleophilic ink-receptive,wherein both lithographic finishers include a hydrophobizing agent, a surface-active agent and a hydrophilic film-forming compound.

摘要翻译： 本发明提供了一种根据银盐扩散转移方法制造胶版印刷版的方法，包括以下步骤：以成像元件成像曝光，所述成像元件按照在支撑体的亲水表面上给出的顺序包括（i）图像接收 含有物理发育核的层和（ii）包含光敏卤化银乳剂的感光层，所述感光层与所述图像接收层处于水可渗透的关系，在（a）显影剂存在下向成像元件施加碱性水溶液 （a）卤化银溶剂以在所述图像接收层中形成银图像，用第一平版印刷整理器处理成像元件以去除图像接收层顶部的层， 从而通过露出形成在所述图像接收层中的所述银图像来曝光所述支撑体的成像表面，处理所述曝光的成像表面 支持第二平版印刷装置，以增强非图像区域的吸水性，并使图像区域具有亲油性的油墨接受性，其中平版印刷装订机包括疏水化剂，表面活性剂和亲水成膜化合物 。