摘要:
A photographic material is described, comprising a support and at least one silver halide emulsion layer which contains nearly uniform and large size silver halide grains formed in the presence of a novel silver halide solvent represented by formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represents an unsubstituted or substituted alkyl group, alkenyl group, cycloalkyl group, aralkyl group, aryl group, or heterocyclic group; R.sup.3 represents an unsubstituted or substituted alkyl group, alkenyl group, cycloalkyl group, aralkyl group, aryl group, --NR.sup.4 R.sup.5, a heterocyclic group; and R.sup.4 and R.sup.5 each represents a hydrogen atom, an alkyl group or an aryl group; and wherein R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 can combine with each other to form a 5- or 6-membered ring.
摘要:
In the presence of a novel antifoggant represented by the general formula (I), a silver halide photographic material which has at least one light-sensitive silver halide emulsion layer on a support is development-processed. The developing solution is one containing both dihydroxybenzenes and 3-pyrazolidones, a developing solution containing both dihydroxybenzenes and aminophenoles, or a developing solution containing a primary aromatic amine developer to suppress markedly fog generation at much reduced sacrifice of sensitivity: ##STR1## wherein M represents a hydrogen atom, an alkali metal atom, NH.sub.4 or a mercapto group-protecting moiety which can be split-off in the presence of an alkali; n represents 1, 2 or 3; R.sup.1 represents a hydrogen atom or --COOR.sup.2 ; and R.sup.2 represents a hydrogen atom, an alkali metal atom, NH.sub.4, or an unsubstituted or substituted alkyl, aryl or aralkyl group.
摘要翻译:在由通式(I)表示的新型防灰雾剂的存在下,在载体上具有至少一个感光卤化银乳剂层的卤化银照相材料进行显影处理。 显影溶液是含有二羟基苯和3-吡唑烷酮的显影液,其是含有二羟基苯和氨基苯酚的显影液,或含有主要芳族胺显影剂的显影液,以在极少的敏感性牺牲下抑制明显的雾产生。 其中M表示氢原子,碱金属原子,NH 4或可在碱存在下分离的巯基保护基; n表示1,2或3; R1表示氢原子或-COOR2; R 2表示氢原子,碱金属原子,NH 4或未取代或取代的烷基,芳基或芳烷基。
摘要:
A process for the development of color photographic light-sensitive material is described. The process comprises color developing an exposed light-sensitive material in the presence of a compound of the general formula: ##STR1## wherein M is a hydrogen atom, an alkali metal atom, NH.sub.4 or a protective group for the mercapto group which undergoes cleavage by the action of an alkali; R is a hydrogen atom or an alkyl group containing 1 to 3 carbon atoms; and R' is a hydrogen atom or an alkyl group containing 1 to 3 carbon atoms. This process prevents the formation of color development fog without seriously reducing sensitivity.
摘要:
A silver halide photographic emulsion which comprises silver halide grains having a silver chloride content of at least 60 mol % and an octatetracontahedral crystal form of the kind which is constructed of 48 triangular faces, every one of which contacts convexly with each of its two adjoining faces to form a line and concavely with its one adjoining face to form a line, with the grains being formed in the presence of a synthetic polymer peptizer which contains, as repeating units, units derived from a thioether linkage-containing ethylenically unsaturated monomer, in a mole fraction of from about 20 to 100 mole %, thereby achieving low fog and high sensitivity.
摘要:
A silver halide photographic light-sensitive element is described comprising a support having thereon at least one silver halide emulsion layer, wherein at least one compound represented by formula (I) is incorporated in the silver halide emulsion layer or in another hydrophilic colloid layer: ##STR1## wherein X represents a hydroxy group or a group represented by ##STR2## wherein R.sup.2 and R.sup.3 (which may be the same or different) each reprsents hydrogen, an alkyl group, or an aryl group; R.sup.1 represents a sulfur-containing saturated heterocyclic group or a group represented by -A-S-B, wherein A represents an alkylene group and B represents hydrogen, an alkyl group, or an aryl group; and Z represents an atomic group forming a 5-membered or 6-membered unsubstituted or substituted carbocyclic ring.In the silver halide photographic light-sensitive element, the so-called "latent image fading" phenomenon is prevented without accompanying degradation of other photograhic properties.
摘要:
A process for processing silver halide photographic material is disclosed, which comprises development-processing a silver halide photographic material in the presence of a compound represented by formula (I) or a salt thereof with an inorganic or organic acid: ##STR1## wherein Z represents an atomic group of carbon atoms, nitrogen atoms, or a combination thereof forming a 5-, 6-, or 7-membered unsaturated heterocyclic ring, said unsaturated heterocyclic ring being optionally fused with a monocyclic or bicyclic aryl group;R.sup.0 represents ##STR2## R.sup.1 represents an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group;R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an alkoxy group, a substituted alkoxy group, an amino group, or a substituted amino group;R.sup.4 represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group; andR.sup.5 represents an acyl group, a sulfinyl group, a sulfonyl group, or a carbamoyl group, or represents a group selected from the groups represented by R.sup.1, R.sup.2, R.sup.3 and R.sup.4.
摘要:
A method for developing a silver halide photographic material in the presence of an amino compound represented by the following general formula (I) or the salt thereof to increase photographic speed and/or gamma without being attended by a concomitant increase in generation of fog: ##STR1## wherein R.sup.1 represents an alkyl group, an aryl group, an aralkyl group or a cycloalkyl group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group or an alkylcarbonyl group, or R.sup.2 and R.sup.3 may combine with each other and form a ring; and A represents a divalent aliphatic linkage group.
摘要翻译:在由下列通式(I)表示的氨基化合物或其盐的存在下显影卤化银照相材料的方法,以增加摄影速度和/或γ,而不伴随着雾的产生的伴随增加: (I)其中R1表示烷基,芳基,芳烷基或环烷基; R 2和R 3可以相同或不同,各自表示氢原子,烷基,烯基,芳基,芳烷基或烷基羰基,或者R 2和R 3可以彼此结合形成 环; A表示二价脂肪连接基团。
摘要:
A silver halide photographic light-sensitive material is disclosed. The material is comprised of a support base having thereon a silver halide emulsion layer and a high molecular compound having a repeating unit containing a residue of benzotriazoles. The repeating unit may be represented by the general formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group, L represents a divalent bonding group, and X represents a monovalent group of benzotriazoles. Improved antifogging agent effects are obtained by utilizing the high molecular compound of applicants' invention in connection with silver halide photographic light-sensitive materials.
摘要:
A silver halide photographic light-sensitive element is described containing a cephalosporin compound in its silver halide emulsion layer of substantially the surface latent image type, or in its hydrophilic colloid layer. This light-sensitive element is prevented in the latent image fading.
摘要:
A high contrast, chemically fogged direct positive type silver halide photosensitive material is described containing at least one ammine complex salt selected from those including cobalt, nickel, ruthenium or chromium, by which the contrast in the lower optical density region is improved while retaining superior Dmax and sensitivity.