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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：
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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.
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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。
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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.
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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。
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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.
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公开(公告)号：US5206123A
公开(公告)日：1993-04-27
申请号：US835856
申请日：1992-02-18
申请人： Richard A. Ooms , Piet Kok
发明人： Richard A. Ooms , Piet Kok
CPC分类号： G03C5/305
摘要： A method for high contrast development of an image-wise exposed photographic element comprising a support and at least one silver halide emulsion layer, which method comprises contacting said exposed element in the presence of a hydrazine compound with an aqueous alkaline developing solution which has a pH between 10 and 13 and contains a dihydroxybenzene developing agent a 3-pyrazolidinone or an aminophenol developing agent sulphite ions and a contrast promoting amount of an amino compound characterized in that said developing solution further contains an aprotic solvent corresponding to general formula (I) or (II) : ##STR1## wherein R.sub.1 represents alkyl, substituted alkyl, alkylamino or substituted alkylamino, andR.sub.2 and R.sub.3 each independently represent alkyl substituted alkyl orwherein R.sub.1 together with R.sub.2 represent the necessary atoms to form together with the carbon and the nitrogen atom respectively to which they are attached, a heterocyclic ring, and R.sub.3 represents alkyl substituted alkyl or hydrogen;R.sub.4 and R.sub.5 each independently represent, alkyl, substituted alkyl, alkylamino or substituted alkylamino orR.sub.4 together with R.sub.5 represent the necessary atoms to form together with the sulphur atom to which they are attached a heterocyclic ring and n is 1 or 2.Preferred aprotic solvents are N,N'-dimethylacetamide, N-methyl-2-pyrrolidinone tetramethylurea, 1,3,-dimethyl-2-imidazolidinone, dimethylsulphoxide and tetramethylenesulphon.
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公开(公告)号：US5536817A
公开(公告)日：1996-07-16
申请号：US520990
申请日：1995-08-30
申请人： Eddy Michiels , Piet Kok , Johan Loccufier , Frank Michiels , Ludo Van Rompuy
发明人： Eddy Michiels , Piet Kok , Johan Loccufier , Frank Michiels , Ludo Van Rompuy
摘要： A modified gelatin is disclosed wherein part of the free carboxyl groups is replaced by modifiers having more acid end-standing groups chosen from --SO.sub.3 M, --OSO.sub.3 M, --SSO.sub.3 M, ---OPO(OH).sub.2, --OPO(OH)(OR.sup.2), --PO(OH).sub.2, --PO(OH)(OR.sup.2).In a preferred embodiment such a modified gelatin is incorporated in a DTR photographic material which after processing can serve as a lithographic printing plate. Thanks to the more hydrophilic character of the modified gelatin the differentiation between printing and non-printing areas is improved and toning at printing start-up is reduced.
摘要翻译： 公开了一种改性明胶，其中部分游离羧基被具有更多酸选自-SO 3 M，-OSO 3 M，-SSO 3 M，-OPO（OH）2，-OPO（OH）（OR 2）的酸性末端基团的改性剂代替， ，-PO（OH）2，-PO（OH）（OR 2）。 在优选的实施方案中，这种改性明胶掺入DTR照相材料中，其在加工后可用作平版印刷版。 由于改性明胶的亲水性更好，印刷和非印刷区域之间的差异得到改善，印刷启动时的色调降低。
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公开(公告)号：US5474885A
公开(公告)日：1995-12-12
申请号：US249723
申请日：1994-05-26
申请人： Eddy Michiels , Piet Kok , Johan Loccufier , Frank Michiels , Ludo Van Rompuy
发明人： Eddy Michiels , Piet Kok , Johan Loccufier , Frank Michiels , Ludo Van Rompuy
摘要： A modified gelatin is disclosed wherein part of the free carboxyl groups is replaced by modifiers having more acid end-standing groups chosen from --SO.sub.3 M, --OSO.sub.3 M, --SSO.sub.3 M, --OPO(OH).sub.2, --OPO(OH)(OR.sup.2), --PO(OH).sub.2, --PO(OH)(OR.sup.2).In a preferred embodiment such a modified gelatin is incorporated in a DTR photographic material which after processing can serve as a lithographic printing plate. Thanks to the more hydrophilic character of the modified gelatin the differentiation between printing and non-printing areas is improved and toning at printing start-up is reduced.
摘要翻译： 公开了一种改性明胶，其中部分游离羧基被具有更多酸选自-SO 3 M，-OSO 3 M，-SSO 3 M，-OPO（OH）2，-OPO（OH）（OR 2）， -PO（OH）2，-PO（OH）（OR2）。 在优选的实施方案中，这种改性明胶掺入DTR照相材料中，其在加工后可用作平版印刷版。 由于改性明胶的亲水性更好，印刷和非印刷区域之间的差异得到改善，印刷启动时的色调降低。
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10.发明授权Substituted triazolopyrimidines and their use in light-sensitive photographic elements 失效取代的三唑并嘧啶及其在感光照相材料中的用途
公开(公告)号：US4727017A
公开(公告)日：1988-02-23
申请号：US823948
申请日：1986-01-29
IPC分类号： C07D487/04 , G03C1/34
CPC分类号： C07D487/04 , G03C1/34 , Y10S430/15
摘要： Photographic element comprising a support and a silver halide emulsion layer comprising in said emulsion layer and/or in a water-permeable layer coated at the same side of the support as said emulsion layer a compound corresponding to the following general formula: ##STR1## wherein: each of R.sup.1, R.sup.2, and R.sup.3, which may be the same or different, can represent hydrogen, C.sub.1 -C.sub.8 alkyl, or Alk.sub.1 - X - Alk.sub.2 - Y -, wherein: Alk.sub.1 is C.sub.1 -C.sub.8 alkyl, which may be substituted, X is --O-- or --S--, Alk.sub.2 is C.sub.1 -C.sub.8 alkylene, which may be substituted, and Y is a single bond, --O--, --S--, --CONH--, --SO.sub.2 NH--, or --NHCONH--, R.sup.3 can alternatively represent C.sub.1 -C.sub.8 alkyl-thio, the C.sub.1 -C.sub.8 alkyl group of which can be substituted, at least one of R.sup.1, R.sup.2, and R.sup.3, however, being other than hydrogen and other than C.sub.1 -C.sub.8 alkyl.The invention disclosed includes compounds per se, which correspond to said general formula.
摘要翻译： 包含载体和卤化银乳剂层的照相元件包括在所述乳剂层中和/或在与所述乳剂层的支持物的同一侧涂覆的透水层中，所述化合物对应于以下通式：其中 ：可以相同或不同的R 1，R 2和R 3可以表示氢，C 1 -C 8烷基或Alk 1 -X-Alk 2 -Y-，其中：Alk1是可被取代的C 1 -C 8烷基，X 是-O-或-S-，Alk2是可以被取代的C1-C8亚烷基，Y是单键，-O - ， - S - ， - CONH - ， - SO2NH-或-NHCONH-，R3可以 或者表示C1-C8烷基 - 硫基，其C1-C8烷基可以被取代，R 1，R 2和R 3中的至少一个，但不是氢并且不是C 1 -C 8烷基。 所公开的本发明包括对应于所述通式的化合物本身。
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