-
公开(公告)号：US5141843A
公开(公告)日：1992-08-25
申请号：US675518
申请日：1991-03-27
IPC分类号： G03C5/29 , C07D257/04 , G03C5/30 , G03C5/305
CPC分类号： C07D257/04 , G03C5/305
摘要： A developer liquid suited for use in development of photographic silver halide emulsion layer materials which liquid contains:1) hydroquinone or a substituted hydroquinone as sole developing agent or said hydroquinone as main developing agent in combination with an auxiliary developing agent in an amount less than 10 mole % with respect to the main developing agent,2) an inorganic compound yielding free sulphite ions in an amount of at least 5 grams per liter,3) an organic anti-fogging agent corresponding to the following general formula (Z): ##STR1## wherein: X.sup.2 represents an alkyl group or an aryl group including said groups in substituted form or an amino group including said group in substituted form;the amount of anti-fogging agent being in the range of 50 mg to 1 g per liter,4) a polymer containing a plurality of alkylene oxide units, and5) the necessary alkaline material to have in said liquid a pH of at least 10.5. Optional additives can also be present in the developing liquid.
摘要翻译： 一种适合用于显影卤化银乳剂层材料的显影剂液体，其液体包含：1）氢醌或取代的氢醌作为唯一显影剂或所述氢醌作为主要显影剂，与辅助显影剂的组合少于10 相对于主显影剂的摩尔％，2）产生至少5克/升的游离亚硫酸根离子的无机化合物，3）对应于以下通式（Z）的有机防雾剂：
-
2.发明授权Class of masked stabilizers in photographic materials or developing solutions 失效摄影材料或开发解决方案中的屏蔽稳定剂类
公开(公告)号：US5236815A
公开(公告)日：1993-08-17
申请号：US923483
申请日：1992-08-03
IPC分类号： G03C5/29 , C07D209/08 , C07D231/56 , C07D249/18 , G03C1/06 , G03C1/34 , G03C1/485 , G03C1/76 , G03C5/305
CPC分类号： C07D249/18 , G03C1/48538
摘要： A new class of photographic masked stabilizers is disclosed showing following general chemical formula (Ia) or (Ib): ##STR1## wherein X and Y each independently represent N or CR, R being hydrogen or lower alkyl,Z represents a lower alkyl group, a nitro group, a halogen atom or hydrogen, andM represents a positive counterion, preferably an alkali cation, ammonium or substituted ammonium.The compounds are demasked by hydrolysis under alkaline conditions. They can be incorporated in a developing solution or in a photographic material, preferably in the backing layer. They show an enhanced solvability in water compared to the corresponding unmasked stabilizers.A preferred compound is 1-(2-sulphonatobenzoyl)-5-nitroindazole trimethylamine, sodium or potassium salt.
-
公开(公告)号：US5155014A
公开(公告)日：1992-10-13
申请号：US746800
申请日：1991-08-14
IPC分类号： C07D231/08 , G03C1/485 , G03C5/30 , G03C5/50
CPC分类号： G03C1/48538 , G03C5/50
摘要： Method for the production of direct-positive images by image-wise exposing a light-sensitive silver halide material comprising a support and an internal latent image-type silver halide emulsion layer and developing said exposed material in the presence of at least one development nucleator and density-increasing amounts of a compound chosen from the class consisting of formic acid, oxalic acid, glyoxylic acid, or salts of these and/or of a compound chosen from the class consisting of polyethylene glycols, with a hydroquinone-type developing solution having a pH not higher than 12.0 and comprising less than 25 g per liter of a hydroquinone and 5 to 100 g per liter of at least one alkanolamine.
摘要翻译： 通过使包含支持体和内部潜像型卤化银乳剂层的感光卤化银材料成像曝光并在至少一种显影成核剂存在下显影所述暴露材料的方法来生产直接阳性图像的方法，以及 选自甲酸，草酸，乙醛酸或其盐的化合物和/或选自聚乙二醇的化合物的浓度增加量与氢醌型显影液具有 pH不高于12.0，并且包含小于25g每升氢醌和5至100g /升至少一种链烷醇胺。
-
4.发明授权Photographic direct positive material containing a masked benzotriazole stabilizer 失效含有掩蔽的苯并三唑稳定剂的摄影直接正材料
公开(公告)号：US5254443A
公开(公告)日：1993-10-19
申请号：US915673
申请日：1992-07-21
申请人： Piet Kok , Jean-Marie O. Dewanckele
发明人： Piet Kok , Jean-Marie O. Dewanckele
CPC分类号： C07D249/18 , G03C1/48538
摘要： A photographic direct positive material is disclosed comprising a support and one or more radiation sensitive emulsion layers containing internal latent image-forming silver halide grains characterized in that at least one of said emulsion layers further contains a masked stabilizer corresponding to general formula (I): ##STR1## wherein Z represents a lower alkyl group, a nitro group or a halogen atom, n=0 to 4, and M represents a positive counterion.Preferred compounds are 1-(2-sulphonatobenzoyl)-5-methyl-benzotriazole, 1-(2-sulphonatobenzoyl)-6-methyl-benzotriazole or a mixture of both.The masked stabilizer is preferably incorporated in the emulsion layer(s). The material preferably further contains a nucleating agent. Improved direct positive sensitometric properties and wider exposure latitude before encountering rereversal are obtained.
-
公开(公告)号：US5156940A
公开(公告)日：1992-10-20
申请号：US654682
申请日：1991-02-13
申请人： Piet Kok , Jos A. Vaes , Jean-Marie O. Dewanckele , Luc J. Wabbes
发明人： Piet Kok , Jos A. Vaes , Jean-Marie O. Dewanckele , Luc J. Wabbes
IPC分类号： C07D403/10 , C07D403/12 , C07D405/12 , C07D413/12 , C07D417/12 , G03C1/34 , G03C8/06 , G03C8/08 , G03F7/07
CPC分类号： C07D403/10 , C07D403/12 , C07D405/12 , C07D413/10 , C07D417/12 , G03C1/34 , G03C8/06 , G03F7/07
摘要： A new class of photographic stabilizers is prepared and their use in photographic materials is disclosed. These compounds are 1-phenyl-3-pyrazolidinone derivatives corresponding to following general formula: ##STR1## wherein: A represents a group capable of adsorbing at the surface of silver halides;L is a divalent linking group and r is 0 or 1;R1 and R2 each represent hydrogen, lower alkyl or substituted lower alkyl.The photographic materials containing the substances of the invention are preferably DTR mono-sheet elements which after processing can serve as planographic printing plates.
摘要翻译： 制备了一类新的照相稳定剂，并且公开了它们在照相材料中的用途。 这些化合物是对应于以下通式的1-苯基-3-吡唑烷酮衍生物：其中：A表示能够在卤化银表面吸附的基团; L是二价连接基团，r是0或1; R 1和R 2各自表示氢，低级烷基或取代的低级烷基。 含有本发明物质的照相材料优选是DTR单片元件，其在加工后可用作平版印刷版。
-
公开(公告)号：US5043245A
公开(公告)日：1991-08-27
申请号：US470353
申请日：1990-01-25
CPC分类号： G03C8/243 , G03C8/28 , G03C8/423 , Y10S430/166
摘要： Process for the production of a laminated article including a sheet support bearing a silver image produced by the silver complex diffusion transfer process in a layer containing developement nuclei, wherein such supported image is heat-laminated with a protective thermoplastic resin layer of sheet that covers it. The heat-lamination of the nuclei-containing layer with the silver image therein takes place in the presence of at least one of certain heterocyclic black-toning agents which are effective to prevent degradation of the neutral black coloration and density loss of the silver image as a result of heat-lamination.
-
公开(公告)号：US5413897A
公开(公告)日：1995-05-09
申请号：US238047
申请日：1994-05-04
IPC分类号： G03C1/06 , G03C1/07 , G03C1/08 , G03C1/43 , G03C1/485 , G03C7/305 , G03C8/06 , G03C8/28 , G03F7/00 , G03F7/07 , G03C8/00 , G03C1/10
CPC分类号： G03C1/485 , G03C7/305 , G03C8/06 , G03F7/07 , G03C1/07 , G03C1/08 , G03C2001/03564 , G03C2007/3032 , Y10S430/156
摘要： The present invention provides a photographic material comprising on a support (i) photosensitive silver halide particles, (ii) substantially light insensitive silver salt particles having a speed at least a factor 10 less than said photosensitive silver halide particles under the same conditions of exposure and development of said photosensitive silver halide particles and (iii) a releasing compound capable of image-wise releasing under the conditions for image-wise development of said photosensitive silver halide to silver a chemical sensitizer, said chemical sensitizer rendering said substantially light insensitive silver salt particles developable. The present invention also provides a method for making an image therewith and a method for making a lithographic printing plate.
摘要翻译： 本发明提供一种照相材料，其包含在（i）感光卤化银颗粒的载体上，（ii）在相同的曝光条件下具有比所述感光卤化银颗粒少至少10倍的速度的基本上不敏感的银盐颗粒，以及 所述光敏卤化银颗粒的开发和（iii）能够在用于将感光卤化银成像显影至银化学敏化剂的条件下成像释放的释放化合物，所述化学增感剂使所述基本上不敏感的银盐颗粒 可开发的 本发明还提供了一种用于制作图像的方法和一种制备平版印刷版的方法。
-
公开(公告)号：US5198333A
公开(公告)日：1993-03-30
申请号：US668624
申请日：1991-03-13
IPC分类号： G03C1/035 , C07D401/12 , C07D413/12 , C07D417/12 , C07D513/04 , G03C1/36 , G03C1/485
CPC分类号： C07D401/12 , C07D413/12 , C07D417/12 , C07D513/04 , G03C1/36
摘要： A new class of electron-accepting compounds for photographic emulsions is disclosed represented by following general formula (I): ##STR1## wherein: each of Z and Q which may be the same or different represents the atoms necessary to complete an unsubstituted or substituted nitrogen-containing heterocyclic ring;each of T.sub.1 and T.sub.2 which may be the same or different represents alkyl, cycloalkyl, alkoxy, aryl, aryloxy, halogen, cyano, hydroxy, carboxyl, sulfo, carbamoyl, acyl, acylamino, sulfamoyl, sulfonamido or a benzocondensed ring, each of which can be further substituted or not;q=1, 2 or 3, and p and r=0, 1 or 2.In this formula the nitro containing heterocyclic nucleus is preferably nitropyridine or nitrothiazole.In a preferred embodiment of the invention electron-accepting compounds are incorporated in negative or direct positive roomlight emulsions. In the latter case the emulsion layer preferably contains in addition a nitroindazole or nitrobenzimidazole derivative.
-
公开(公告)号：US5187054A
公开(公告)日：1993-02-16
申请号：US891744
申请日：1992-06-01
CPC分类号： G03C1/06 , G03C1/7614 , Y10S430/13 , Y10S430/162
摘要： A photographic material is disclosed containing in a non-light sensitive layer above the emulsion layer an anti-sludging compound corresponding to following general formula (I): ##STR1## wherein Ball represents a ballast group, L represents a divalent linking group and Z represents the necessary atoms to close a heterocyclic ring with the proviso that said heterocyclic ring contains no mercapto substituent. The divalent linking group is preferably chosen from the list of --O--, --S--, --CO--NR.sub.1 --, --NR.sub.2 --NR.sub.3 --,--SO.sub.2 --NR.sub.4 --, --O--CR.sub.5 R.sub.6 --CO--NH-- wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 represents hydrogen, alkyl or aralkyl. The heterocyclic ring is preferably chosen from the list of imidazole, benzimidazole, 1,2,3-triazole, 1,2,4-triazole, benzotriazole, tetrazole, indazole, uracil and hydantoin.The non-light sensitive layer, wherein the anti-sludging compound is added, is preferably the top protective layer.
-
10.发明授权
公开(公告)号：US5340690A
公开(公告)日：1994-08-23
申请号：US32174
申请日：1993-03-15
摘要： According to the present invention there is provided a method for making a lithographic printing plate according to the DTR-process comprising the steps of:information-wise exposing an imaging element comprising on a support a silver halide emulsion layer and an image-receiving layer containing physical development nuclei anddeveloping said information-wise exposed imaging element with an alkaline processing liquid in the presence of developing agent(s) and silver halide solvent(s) characterized in that said silver halide solvents comprise a combination of (an) alkanolamine(s) and a thiosulfate wherein said thiosulfate is used in a total amount between 0.01% and 1% by weight in said alkaline processing liquid.
摘要翻译： 根据本发明，提供了根据DTR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信息地曝光在卤化银乳剂层和含有 物理发育核，并在显影剂和卤化银溶剂存在下用碱性处理液显影所述信息曝光成像元件，其特征在于所述卤化银溶剂包含（a）链烷醇胺 ）和硫代硫酸盐，其中所述硫代硫酸盐在所述碱性处理液中的总量为0.01重量％至1重量％。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.015 秒)
