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1.发明授权Thermal transfer imaging system based on the heat transfer of a reducing agent for reducing a silver source to metallic silver 失效基于用于将银源还原成金属银的还原剂的热传递的热转印成像系统
公开(公告)号：US5547809A
公开(公告)日：1996-08-20
申请号：US426817
申请日：1995-04-21
申请人： Geert Defieuw , Wilhelmus Janssens , Luc Vanmaele , Jean-Marie Dewanckele , Herman Uytterhoeven
发明人： Geert Defieuw , Wilhelmus Janssens , Luc Vanmaele , Jean-Marie Dewanckele , Herman Uytterhoeven
CPC分类号： G03C1/4989
摘要： The present invention provides a printing process using a donor element and a receiving element. The donor element comprises on a support a donor layer comprising a binder and a thermotransferable strong reducing agent capable of reducing a silver source to metallic silver upon heating.The donor element is image-wise heated while being in contact with an image receiving material comprising a thermoreducible silver source and a weak reducing agent, only being capable of reducing a silver source to metallic silver in the presence of metallic silver formed by said strong reducing agent. Image density is increased and stability of the reductor donor element can be improved.
摘要翻译： 本发明提供使用施主元件和接收元件的印刷方法。 供体元件在载体上包含供体层，其包含粘合剂和可热转移的强还原剂，其能够在加热时将银源还原成金属银。 供体元件在与包含可热还原银源和弱还原剂的图像接收材料接触的同时进行成像加热，仅在由所述强还原形成的金属银存在下才能将银源还原成金属银 代理商 图像密度增加，并且可以提高减电体施主元件的稳定性。
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2.发明授权Thermal transfer printing process using a mixture of reducing agents for image-wise reducing a silver source 失效使用还原剂的混合物进行热转印印刷工艺，用于成像地还原银源
公开(公告)号：US5627008A
公开(公告)日：1997-05-06
申请号：US618399
申请日：1996-03-19
CPC分类号： G03C1/4989 , Y10S430/165
摘要： The present invention provides a donor for use in thermal transfer printing. The donor element comprises on a support a donor layer comprising a binder and a mixture of at least two thermotransferable reducing agents capable of reducing a silver source to metallic silver upon heating. The donor element is image-wise heated while being in contact with an image receiving material comprising a thermoreducible silver source. By using a mixture of reducing agents crystallization is reduced and the obtained images exhibit an increased density and a more neutral grey hue.
摘要翻译： 本发明提供一种用于热转印的供体。 供体元件在支撑体上包含施主层，该施主层包含粘合剂和至少两种能够在加热时将银源还原成金属银的可热转移还原剂的混合物。 供体元件在与包含可热还原银源的图像接收材料接触的同时加热成像。 通过使用还原剂的混合物，结晶减少，并且所获得的图像显示出增加的密度和更中性的灰色色调。
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公开(公告)号：US5589317A
公开(公告)日：1996-12-31
申请号：US400337
申请日：1995-03-08
申请人： Geert Defieuw , Wilhelmus Janssens , Herman Uytterhoeven , Bart Horsten , Jean-Marie Dewanckele , Jan Van den Bogaert
发明人： Geert Defieuw , Wilhelmus Janssens , Herman Uytterhoeven , Bart Horsten , Jean-Marie Dewanckele , Jan Van den Bogaert
CPC分类号： B41M5/38235 , G03C1/4989 , G03C8/4013 , Y10S430/166
摘要： The present invention provides a method for reproducing continuous tone images by means of a thermal head. The method involves the image-wise heat transfer of a reducing agent from a donor element to a receiving layer of a receiving element. The receiving element contains a thermoreducible silver source such as e.g. silver behenate. The process of the present invention provides high density images with multiple intermediate density levels.
摘要翻译： 本发明提供一种通过热敏头再现连续色调图像的方法。 该方法涉及还原剂从施主元件到接收元件的接收层的成像方式的热传递。 接收元件含有可热还原的银源，例如。 银山灰 本发明的方法提供具有多个中等密度水平的高密度图像。
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公开(公告)号：US5858913A
公开(公告)日：1999-01-12
申请号：US543224
申请日：1995-10-13
CPC分类号： G03C1/4989 , B41M5/32 , G03C1/49845 , G03C8/4013
摘要： Receiving element for use according to transfer printing, comprising on a support a receiving layer comprising a silver source, capable of being reduced by means of heat in the presence of a reducing agent, a binder and a stabilizer selected from the group of benzotriazoles, heterocyclic mercaptanes, sulphinic acids, 1,3,4-triazo-indolizines, 1,3-dinitroaryl compounds, 1,2,3-triazoles, phthalic acids and phthalic acid derivatives.The receiving element provides images with higher stability at elevated temperatures and upon exposure to light.
摘要翻译： 用于根据转印印刷使用的接收元件，其包括在载体上，包含银源的接收层，其能够在还原剂存在下通过热量还原，粘合剂和稳定剂选自苯并三唑，杂环 硫醇，亚磺酸，1,3,4-三唑 - 中氮茚，1,3-二硝基芳基化合物，1,2,3-三唑，邻苯二甲酸和邻苯二甲酸衍生物。 接收元件在升高的温度和曝光时提供更高稳定性的图像。
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5.发明授权New toning agents for thermographic and photothermographic materials and process 失效用于热成像和光热成像材料和工艺的新调色剂
公开(公告)号：US5599647A
公开(公告)日：1997-02-04
申请号：US666974
申请日：1996-06-20
CPC分类号： G03C1/49845 , Y10S430/165 , Y10S430/166
摘要： Toning agents are provided for use in thermographic and photothermographic materials, either on their own or in combination with at least one other toning agent, with improved compatibility with hydrophobic media as shown by reduced crystallization and reduced diffusion through the material, which properties enabling an improved imaging performance to be achieved and in particular a more neutral image tone after storage.
摘要翻译： 提供了用于热成像和光热成像材料的调色剂，其本身或与至少一种其它调色剂组合使用，具有改善的与疏水性介质的相容性，如通过减少的结晶和减少的通过材料的扩散所显示的， 成像性能要实现，特别是储存后更中立的图像色调。
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公开(公告)号：US5622803A
公开(公告)日：1997-04-22
申请号：US356236
申请日：1994-12-14
CPC分类号： G03G9/08759 , G03G9/0823 , G03G9/08797 , G03G9/09741 , G03G9/0975 , G03G9/09758
摘要： A dry toner powder the toner particles of which are triboelectrically negatively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain:(1) at least one triboelectrically negatively chargeable thermoplastic resin serving as binder having a volume resistivity of at least 10.sup.13 .OMEGA.-cm, and(2) at least one resistivity lowering substance being an onium compound having a volume resistivity lower than the volume resistivity of said binder, and said toner particles are free from non-resinous charge-controlling agent(s) providing negative triboelectric chargeability,wherein said substance(s) (2) is (are) capable of lowering the volume resistivity of said binder by a factor of at least 3.3 when present in said binder in a concentration of 5% by weight relative to the weight of said binder, andwherein said toner powder containing toner particles including a mixture of said ingredients (1) and (2) under triboelectric charging conditions is capable of obtaining an absolute median (q/d) charge/diameter value (x) lower than 10 fC/10 .mu.m but not lower than 1 fC/10 .mu.m, and said toner powder under the same triboelectric charging conditions but free from said substance(s) (2) then has an absolute median q/d value (x) at least 50% higher than when said substance(s) (2) is (are) present, and wherein the distribution of the charge/diameter values of the individual toner particles is characterized by a coefficient of variation .nu..ltoreq.0.33.
摘要翻译： PCT No.PCT / EP94 / 01310 Sec。 371日期1994年12月14日第 102（e）日期1994年12月14日PCT 1994年4月25日PCT PCT。 WO94 / 27191 PCT出版物 日期1994年11月24日一种其调色剂颗粒为摩擦带电带电并适于显影静电荷图案的干燥调色剂粉末，其中所述调色剂颗粒包含：（1）至少一种用作粘合剂的摩擦带电性带负电荷的热塑性树脂， 体积电阻率为至少1013欧姆 - 厘米，和（2）至少一种电阻率降低物质是体积电阻率低于所述粘合剂的体积电阻率的鎓化合物，并且所述调色剂颗粒不含非树脂电荷 - 提供负摩擦带电性的控制剂，其中所述物质（2）当以5％的浓度存在于所述粘合剂中时能够将所述粘合剂的体积电阻率降低至少3.3倍， ，并且其中所述调色剂粉末含有包含所述成分（1）和（2）的混合物的调色剂颗粒在摩擦电 充电条件能够获得低于10fC /10μm但不低于1fC /10μm的绝对中值（q / d）电荷/直径值（x），并且所述调色剂粉末在相同的摩擦带电条件 但没有所述物质（2）的绝对中值q / d值（x）比所述物质（2）存在时高出至少50％，并且其中 单个调色剂颗粒的电荷/直径值的特征在于变异系数nu <0.33。
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公开(公告)号：US5449595A
公开(公告)日：1995-09-12
申请号：US267410
申请日：1994-06-29
IPC分类号： G03C1/295 , C07D487/04 , G03C1/485 , G03C5/50
CPC分类号： C07D487/04 , G03C1/48538 , G03C1/48561 , Y10S430/141
摘要： The present invention relates to a method for making direct-positive photographic images by developing light-sensitive materials in the presence of development nucleators which do not cause loss of sensitivity during exposure or unevenness of development. More specifically the invention relates to the formation of direct-positive images having a high maximum density and high exposure latitude and to photographic materials for use in said formation, which is accomplished by a method for making direct-positive images comprising:image-wise exposing a photographic light-sensitive silver halide material comprising a support and a layer of an internal latent image-type silver halide emulsion, the pAg of which has been adjusted to a pAg-value between 9.0 and 10.5 inclusive before coating, anddeveloping said exposed photographic silver halide material in a surface developer in the presence of a development nucleator with a group promoting adsorption to silver halide.It has been found that in a particular embodiment of this invention a development-nucleating amount of a hydrazine compound with a 7-hydroxy-s-triazolo-[1,5-a]-pyrimidine group as group promoting adsorption to silver halide is very useful.
摘要翻译： 本发明涉及通过在显影成核剂的存在下开发感光材料来制造直接正性照相图像的方法，其不会在曝光或显影不均匀期间引起敏感性的损失。 更具体地，本发明涉及形成具有高最大密度和高曝光宽容度的直接正像，以及用于所述地层中的照相材料，其通过用于制造直接正像的方法来实现，包括：图像曝光 一种照相感光卤化银材料，其包含载体和一层内部潜像型卤化银乳剂，其pAg已被调节至涂覆前的9.0和10.5之间的pAg值，并显影所述曝光的照相 卤化银材料在显影成核剂存在下在表面显影剂中具有促进对卤化银吸附的基团。 已经发现，在本发明的一个具体实施方案中，显影成核量的具有7-羟基-s-三唑并 - [1,5-a] - 嘧啶基的肼化合物作为促进对卤化银吸附的基团是非常 有用。
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公开(公告)号：US5362620A
公开(公告)日：1994-11-08
申请号：US140474
申请日：1993-10-25
摘要： The present invention discloses a photographic material comprising on a support a photosensitive layer containing a mixture of silver halide emulsions at least one of which is spectrally sensitized and at least one of which is not spectrally sensitized characterized in that the surface of the silver halide particles of the silver halide emulsion not being spectrally sensitized is loaded with a stabilizer having a mercapto group or the tautomeric thione group thereof such that the surface covered by one molecule of stabilizer is between 10 .ANG..sup.2 and 70 .ANG..sup.2. The loss of speed due to migration of the spectral sensitizer from the sensitized emulsion to the non sensitized emulsion is reduced and can even be inhibited.
摘要翻译： 本发明公开了一种照相材料，其在载体上包含含有卤化银乳剂的混合物的感光层，所述卤化银乳剂的至少一种是光谱增感的，其中至少一种不受光谱增感，其特征在于，卤化银颗粒的表面 没有光谱敏化的卤化银乳剂装载有具有巯基或其互变异构硫酮基团的稳定剂，使得被一分子稳定剂覆盖的表面在10埃至2埃到7埃之间。由于迁移而导致的速度损失 的光敏剂从致敏乳液到非致敏乳液的降低，甚至可以被抑制。
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9.发明授权
公开(公告)号：US5283156A
公开(公告)日：1994-02-01
申请号：US986072
申请日：1992-12-04
摘要： The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of image-wise exposing an imaging element comprising on a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei and developing said imaging element in the presence of developing agent(s) and silver halide solvent(s) using an alkaline processing liquid characterized in that said development is carried out in the presence of a regulator according to one of the formulas as specified in the claims. The present invention further provides an imaging element and alkaline processing liquid for use in said method.
摘要翻译： 本发明提供了一种根据银盐扩散转移方法制备平版印刷版的方法，包括以下步骤：将包含在载体上的成像元件成像曝光，所述感光层包含卤化银乳剂和包含物理 显影核和在显影剂和卤化银溶剂的存在下使用碱性处理液显影所述成像元件，其特征在于所述显影在根据指定的一种式中的调节剂存在下进行 在权利要求中。 本发明还提供了一种用于所述方法的成像元件和碱性处理液体。
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10.发明授权
公开(公告)号：US5665515A
公开(公告)日：1997-09-09
申请号：US544662
申请日：1995-10-18
CPC分类号： G03F7/066
摘要： The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process using a photographic material comprising on a support a silver halide emulsion layer and a layer containing physical development nuclei comprising the steps of:image-wise exposing said photographic material;developing a thus obtained image-wise exposed photographic material by guiding said image-wise exposed photographic material through an alkaline processing liquid comprising a hydrophobizing agent, in 15s or less andsubsequently guiding a thus obtained developed photographic material through a stabilizing liquid;characterized in that said stabilizing liquid comprises a compound having a mercapto-group having a pK.sub.a of 4.5 or less.
摘要翻译： 本发明提供根据银盐扩散转移方法制备平版印刷版的方法，该方法使用包含载体上的卤化银乳剂层和含有物理显影核的层的照相材料，该方法包括以下步骤：将所述 照相材料; 通过引导所述成像曝光的照相材料通过包含疏水化剂的碱性处理液在15秒或更短时间内，然后引导如此获得的显影的照相材料通过稳定液体，从而显影如此获得的图像曝光的照相材料; 其特征在于，所述稳定液体包含具有4.5K以下的pKa的巯基的化合物。
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