摘要:
Light sensitive color photographic silver halide material containing at least one light sensitive silver halide layer with which a conventional diffusion fast color coupler is associated and optionally other layers, both light sensitive and light insensitive, in which material the one or more than one light sensitive silver halide layer contains, at a concentration of 10.sup.-3 to 10 mmol/mol of silver halide, a compound corresponding to the following formulaA(Z).sub.n K (I)absorbed on and adhering to the silver halide grain and reacting with the developer oxidation product (EOP) with an effective reaction rate constant of K.sub.eff .gtoreq.10.sup.3, in which formulaA is a grain active bonding group,Z denotes a divalent intermediate membern is 0 or 1 andK denotes a group which forms a colored or uncolored reaction product in the reaction with the developer oxidation product,is found to have an improved sensitivity/graininess ratio.
摘要:
A color photographic silver halide material of the negative type, in which at least one silver halide emulsion layer contains as compound corresponding to the following formulaA--(Z).sub.n --F* (I)adsorbed on the silver halide grain,A being a grain-active attachment group corresponding to formulae IIa to IId: ##STR1## Z is a difunctional intermediate member, F* is a latent fogging agent group which becomes the active fogging agent (F) during color development andn=0 or 1,is distinguished by improved sensitivity.
摘要:
Hardeners for photographic materials, the binders of which substantially consist of gelatine, wherein the hardeners are carbamoylpyridinium salts, the amine components of which are derived from secondary amines, which amines are converted into photographically inert products by an intramolecular cyclisation reaction, improve photographic properties, even when the material is stored under extreme conditions.
摘要:
A color photographic material containing color couplers which yield heat-stable dyes.A color photographic recording material containing cyan couplers which, during chromogenic development, yield cyan dyes having parameters a and b such thata.(1+b).ltoreq.1.5are suitable for the production of color negatives for multicopy operation in which a plurality of identical copies are successively prepared from the same original.In the above condition:a is the temperature coefficient of the absorption ##EQU1## and b is the temperature coefficient of the absorption wavelength .lambda..sub.(T=23.degree. C.) ##EQU2##
摘要:
Photographically useful organic compounds containing secondary-branched alkyl radicals with at least 15 C atoms corresponding to formula I have a low melting point, good solubility in oil formers and a low tendency towards crystallization which makes them particularly suitable for photographic applications. ##STR1## In formula I: PNOV is the residue of a photographically useful organic compound, for example a coupler or oil former;L is a chemical bond or a link between PNOV and X;X represents --O--, --S--, --SO--, --SO.sub.2 --, --NH--, --NR-- (R.dbd.alkyl or acyl), --CO-- or alkylidene;R.sup.1 and R.sup.2 are unbranched alkyl radicals containing at least 6 C atoms, with the proviso that R.sup.1 and R.sup.2 together contain at least 14 C atoms and, where X represents --CO-- or --CH.sub.2, at least 17 C atoms.
摘要翻译:含有对应于式I的具有至少15个C原子的仲支链烷基的照相有用的有机化合物具有低熔点,在成油剂中的良好溶解性和低结晶倾向,使得它们特别适用于照相应用。 (Ⅰ)式Ⅰ中PNOV是摄影有用的有机化合物的残留物,例如成色剂或成油剂; L是化学键或PNOV与X之间的连接; X表示-O - , - S - , - SO - , - SO 2 - , - NH - , - NR-(R =烷基或酰基),-CO-或亚烷基; R1和R2是含有至少6个C原子的无支链烷基,条件是R1和R2一起含有至少14个C原子,其中X代表-CO-或-CH2,至少17个C原子。
摘要:
A photographic recording material containing at least one pyrazolone in at least one non-photosensitive layer I, a compound Sc, which reacts with the oxidation product of a p-phenylene diamine developer to form substantially colorless products and which is contained in a non-photosensitive layer which is not separated from the layer I by a photosensitive silver halide emulsion layer, shows improved protection against formaldehyde.
摘要:
Photographic silverhalide containing materials having improved mechanical and electrostatic properties are obtained by adding to at least one of the layers of the material a cross-linked polymer of acrylic acid and/or methacrylic acid which is prepared either (a) by inverse emulsion polymerization of acrylic and/or methacrylic acid monomers in the presence of polyfunctional cross-linking monomers and an emulsifier and breaking of the emulsion and redispersion of the polymer particles in water; or (3) by emulsion polymerization of aliphatic esters of acrylic and/or methacrylic acid in water in the presence of polyfunctional cross-linking monomers and of an emulsifier, followed by saponification of the polymer.
摘要:
A color photographic silver halide material which, in at least one silver halide emulsion layer, contains a magenta coupler corresponding to formula I or (II) below ##STR1## in which R.sub.1 represents alkyl, aryl or a ballast group,R.sub.2 represents a ballast group, alkyl or aryl,Z represents hydrogen or a group releasable on reaction with the developer oxidation product,and a compound corresponding to formula (III) ##STR2## in which R.sub.3 represents alkyl, alkoxy, aryl, optionally substituted amino or the residue of a heterocycle,R.sub.4 represents COR.sub.5, NHR.sub.6, S(O).sub.n R.sub.7,K.sub.5 represents OR.sub.8, NHR.sub.8, alkyl, aryl or a heterocycle,R.sub.6 represents SO.sub.2 R.sub.8, COR.sub.8 or CONHR.sub.8,R.sub.7 represents alkyl, aryl or NHR.sub.3,R.sub.8 represents alkyl or aryl andn=0, 1 or 2,with the exception of compounds in which R.sub.3 is a carboxymethoxyphenyl, carboxymethoxy, alkoxycarbonylmethoxy or alkoxycarbonylmethoxyphyl radical substituted at the methylene group.
摘要:
Photographic color images with improved sensitometric properties and in particular with high maximum magenta density can be obtained by use of a color photographic recording material containing a pyrazoloazole type magenta coupler of formula I ##STR1## in which PAZ represents the group of a color coupler of the pyrazoloazole series capable of color coupling;L represents a bond containing at least 4 carbon atoms;B represents alkyl, aryl or a heterocyclic group;R.sup.1 represents H, halogen, alkyl, alkoxy;R.sup.2 represents H, alkyl, cycloalkyl;L and B together containing at least 12 carbon atoms.
摘要翻译:具有改善的感光特性,特别是具有高最大品红浓度的照相彩色图像可以通过使用含有式I的吡唑并噻唑型品红成色剂的彩色照相记录材料获得,其中PAZ表示颜色成色剂的组 能够进行颜色耦合的吡唑并唑系列; L表示含有至少4个碳原子的键; B代表烷基,芳基或杂环基; R 1表示H,卤素,烷基,烷氧基; R2代表H,烷基,环烷基; L和B一起含有至少12个碳原子。