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1.发明授权
公开(公告)号：US5278024A
公开(公告)日：1994-01-11
申请号：US998445
申请日：1992-12-30
CPC分类号： G03C1/49854 , G03C8/4033 , G03C8/4066
摘要： A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising:(a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.
摘要翻译： 一种用于无溶剂染料热阳性成像扩散转移方法的光热复合结构，包括：（a）图像接收元件，其包含玻璃化转变温度在20度至200度范围内的聚合物可染色图像接收层 以及（b）可剥离地粘附到所述图像接收元件，可成像的光热敏成像元件在其至少一个层中包含粘合剂，银源材料，催化接近所述银源材料的感光卤化银，以及 甲an染料
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2.发明授权
公开(公告)号：US5493327A
公开(公告)日：1996-02-20
申请号：US72155
申请日：1993-06-04
CPC分类号： G03C1/49854 , G03C1/49881
摘要： Method and apparatus for producing image reproducing materials, especially newspaper printing plates or proofs having a predetermined image. A photothermographic material having a polymeric base supporting at least one photosensitive layer, capable of being developed by heat, is exposed to radiation at a first wavelength modulated in accordance with the predetermined image to produce a latent image representing the predetermined image in the photothermographic material. The photosensitive layer contains an antihalation colorant in an amount greater than 0.02 percent by weight. The antihalation colorant is active to radiation in the first wavelength and is transparent to radiation at a second wavelength. The photothermographic material is heated to develop the latent image in the photothermographic material. The image reproducing material is imaged with radiation at the second wavelength using the photothermographic material as a mask.
摘要翻译： 用于制造图像再现材料的方法和装置，特别是具有预定图像的报纸印版或校样。 具有支撑至少一个能够通过热量显影的感光层的聚合物基底的光热敏成像材料暴露于根据预定图像调制的第一波长的辐射，以产生表示光热敏成像材料中的预定图像的潜像。 感光层含有大于0.02重量％的防光晕着色剂。 防晕色素对第一波长的辐射有活性，对第二波长的辐射是透明的。 光热敏成像材料被加热以在光热敏成像材料中显影。 使用光热敏成像材料作为掩模，以第二波长的辐射成像图像再现材料。
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公开(公告)号：US5415975A
公开(公告)日：1995-05-16
申请号：US248358
申请日：1994-05-24
申请人： Richard C. Cotner
发明人： Richard C. Cotner
IPC分类号： G03C1/06
CPC分类号： G03C1/067
摘要： A silver halide photographic emulsion comprising a hydrophilic colloid binder, negative-acting silver halide grains, a hydrazine, and a contrast-promoting amount of a compound selected from the group consisting of 3-indazolinones, 4(3H)-pyrimidones, urazoles, 2-pyrazolin-5-ones, and 3-pyrazolin-5-ones.
摘要翻译： 包含亲水胶体粘合剂，负性卤化银颗粒，肼和对比度促进量的选自3-吲唑啉酮，4（3H） - 嘧啶酮，咔唑，2 - 吡唑啉-5-酮和3-吡唑啉-5-酮。
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公开(公告)号：US5264321A
公开(公告)日：1993-11-23
申请号：US913806
申请日：1992-07-16
CPC分类号： G03C8/4046
摘要： Various photothermographic elements are provided containing a transparent substrate; image receiving layers; dry silver layers; interlayers; and a translucent or opacifying layer. The translucent or opacifying layer can occupy a variety of positions in the photothermographic element relative to the dry silver layers. The translucent or opacifying layers serve to help produce a reflection print upon exposure of the photothermographic element to actinic light and subsequent heating of the exposed element for image development and dye transfer.
摘要翻译： 提供了含有透明基板的各种光热敏成像元件; 图像接收层; 干银层; 中间层 和半透明或不透明层。 半透明或不透明层可以相对于干银层占据光热敏成像元件中的各种位置。 半透明或不透明层用于在将光热敏成像元件暴露于光化光并随后加热暴露的元素用于图像显影和染料转移时帮助产生反射印刷。
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5.发明授权Photothermographic elements with novel layer structures, each of which contains a thermally-diffusible oxidizable leuco dye and process for producing a color image from leuco dye 失效具有新颖层结构的光热敏成像元件，其中每一种都含有可热扩散的可氧化的无色染料和用于从无色染料产生彩色图像的方法
公开(公告)号：US5364733A
公开(公告)日：1994-11-15
申请号：US94620
申请日：1993-07-20
CPC分类号： G03C8/4046
摘要： A photothermographic element containing a transparent substrate having one major surface thereof containing the following layers sequentially coated thereon: an image-receiving layer; an opacifying layer; a first dry silver layer; an interlayer containing thermoplastic polymer; a second dry silver layer; an interlayer containing thermoplastic polymer; and a third dry silver layer, wherein the first, second, and third dry silver layers each contain a light-insensitive, reducible silver source; light-sensitive silver halide, and as a reducing agent for the light-insensitive, reducible silver source, a material oxidizable to a colored dye whose color differs from that capable of being formed in each other dry silver layer, each of the dry silver layers being individually sensitized to light of different wavelengths.
摘要翻译： 一种光热敏成像元件，其含有具有一个主表面的透明基材，所述主表面依次涂覆有以下层：图像接收层; 不透明层; 第一干银层; 含有热塑性聚合物的中间层; 第二干银层; 含有热塑性聚合物的中间层; 和第三干银层，其中所述第一，第二和第三干银层各自含有不透光的可还原银源; 感光卤化银，以及作为光不敏感的可还原银源的还原剂，可氧化成着色染料的材料，其颜色不同于彼此干银层的颜色不同，每个干银层 对不同波长的光单独敏感。
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公开(公告)号：US5494776A
公开(公告)日：1996-02-27
申请号：US248369
申请日：1994-05-24
申请人： Richard C. Cotner
发明人： Richard C. Cotner
CPC分类号： G03C1/34
摘要： The present invention provides a photographic element developed in the presence of a hydrazide which displays high contrast but low levels of pepper fog. The novel silver halide photographic elements comprise, in at least one layer of the element, a pepper reducing agent. The pepper reducing agent of this invention is a compound having at least one nitrogen containing, heterocyclic ring group and at least one carbonyl group in or attached to said ring. The pepper reducing agents preferably are selected from the group containing 2,5-piperazinediones; glycol urils; 2,3-pyrazinedicarboxamides; 3-iminoisoindolinones; or glutarimides.
摘要翻译： 本发明提供在酰肼存在下显影的照相元件，其显示高对比度但低水平的胡椒雾。 所述新型卤化银照相元件在所述元件的至少一层中包含胡椒还原剂。 本发明的胡椒还原剂是在所述环中具有至少一个含氮，杂环基团和至少一个羰基的化合物。 胡椒还原剂优选选自含有2,5-哌嗪二酮的基团; 乙二醇尿 2,3-吡嗪二酰胺; 3-亚氨基异吲哚啉酮; 或戊二酰胺。
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公开(公告)号：US5206112A
公开(公告)日：1993-04-27
申请号：US722178
申请日：1991-06-27
CPC分类号： G03C1/49854 , G03C8/4033 , G03C8/4066
摘要： A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising:(a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.
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