摘要:
A novel silver halide light-sensitive material is provided, comprising a compound represented by the general formula (I): ##STR1## wherein EAG represents an aromatic group which receives electrons from a reducing substance; R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents an electrophilic group, with the proviso that R.sup.1 and R.sup.2 may be in the position of cis or trans to each other; R.sup.3 and R.sup.4 each represents hydrogen atom or a hydrocarbon group; ETG represents a group capable of transferring electrons; e represents an integer 0 or 1; Time represents a group which undergoes reaction triggered by the cleavage from the carbon carrying R.sup.3 and R.sup.4 to release PUG; t represents an integer 0 or 1; and PUG represents a photographically useful group.In a preferred embodiment, R.sup.1 represents an aromatic group, heterocyclic group or group represented by --Y.sup.1 --R.sup.5 in which Y.sup.1 represents a hetero atom or hetero atomic group and R.sup.5 represents hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group. R.sup.2 represents an acyl group, carbamoyl group, alkoxycarbonyl group, cyano group, sulfonyl group or nitro group. R.sup.1 is a group represented by --Y.sup.1 --Y.sup.2 --R.sup.6 in which Y.sup.1 and Y.sup.2 each represents a hetero atom or hetero atomic group and may be the same or different and R.sup.6 represents hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group.
摘要:
2-Aryl-4-isoxazolin-3-one derivatives having the following general formula (I): ##STR1## wherein R.sup.1 represents an alkyl group or an aryl group, R.sup.2, R.sup.3, and R.sup.4 each represents a hydrogen atom, a trifluoromethyl group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group, a halogen atom, a cyano group, a nitro group, an alkoxy group, an aryloxy group, an acyl group, a carboxy group, or a sulfo group, with at least one of R.sup.2, R.sup.3, and R.sup.4 being selected from among a nitro group, a cyano group, a sulfamoyl group, a carbamoyl group, and a sulfonyl group, and X represents a monovalent group of one of a mercaptoazole, a mercaptoazaindene, a tetrazaindene, a mercaptopyrimidine a benzotriazole, an indazole, and a benzimiazole, are disclosed.
摘要:
A silver halide photographic material is disclosed, which comprises a support having formed thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains, in the silver halide emulsion layer, other hydrophilic colloid layer(s), or both, a compound represented by formula (I) ##STR1## wherein EAG represents an electron accepting group, --SO.sub.2 -- represents a sulfonylene group; X represents an oxygen atom (--O--), a sulfur atom (--S--) or an atomic group (--N(R.sub.2)--) containing a nitrogen atom; the single bond between --SO.sub.2 and X being cleaved after EAG receives an electron, wherein R.sub.1 and R.sub.2 each represents a simple bond or a group other than a hydrogen atom; said R.sub.1, R.sub.2, EAG may be combined with each other to form a ring; (Time) represents a group capable of releasing a photographically useful group (PUG) upon the cleavage of the SO.sub.2 --X bond; t represents 0 or 1; when said t is 0, (Time) represents a simple bond and X may be a part of PUG; the solid line represents a bond; the dotted lines show that at least one of them is bonded.
摘要:
A silver halide color reversal photographic material is disclosed which comprises a support and at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer on the support, which material is characterized in that at least one light-sensitive silver halide emulsion layer or at least one layer adjacent thereto contains at least one of the compounds represented by the following general formulae (I), (II), (III) and (IV): ##STR1## All the symbols used are as defined in the Specification.
摘要:
A silver halide photographic material is disclosed. The material comprises a support and at least one silver halide emulsion layer formed thereon, in which said emulsion layer or other layer contains a compound represented by formula (I) ##STR1## wherein X represents an atomic group capable of releasing (Time).sub.t PUG by undergoing an oxidation-reduction reaction with CA.dbd.CR.sub.1 --CR.sub.2).sub.n C.sub.B ; C.sub.A and C.sub.B each represents a carbon atom; n represents an integer of 0, 1, 2, or 3; R.sub.1 and R.sub.2 each a hydrogen atom or a group substitutable for a hydrogen atom; EWG represents an electron withdrawing group having a Hammett's .sigma. para value greater than 0.3; --Time).sub.t PUG represents a group bonded to C.sub.B through an oxygen atom thereof; Time represents a timing group; t represents 0 or 1; and PUG represents a photographically useful group.
摘要:
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains which have a diameter not less than 5 times the thickness thereof and account for at least 50% of the total projected area of the silver halide grains present in the silver halide emulsion layer and the silver halide photographic material also contains at least one compound represented by following general formulae (I), (II), (III) and (IV): ##STR1## wherein R represents a straight chain, branched chain or cyclic alkylene group, a straight chain or branched chain alkenylene group, a straight chain or branched chain aralkylene group or an arylene group; R.sub.1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group; Z represents a hydrogen atom or a polar substituent; X represents a hydrogen atom, a cation necessary for neutralizing the molecule or a precursor; and n represents 0 or 1.The silver halide photographic material has improved image sharpness not only at high spatial frequencies but also at low spatial frequencies.
摘要:
A silver halide photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer and a surface protecting layer, said silver halide photographic light-sensitive material comprising photosensitive silver halide grains and internally fogged silver halide grains, said internally fogged silver halide grains having adsorbed thereon at least one compound represented by the formula (I): ##STR1## wherein X represents --O--, --NH-- or --S--, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent hydrogen atom or a substituent, and at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is substituted or unsubstituted alkyl or aryl group having up to 13 carbon atoms, which is bonded directly or through a divalent linkage group, to the aromatic nucleus.
摘要:
A process for forming photographic image is disclosed, comprising photographically developing, in the presence of a polyalkylene oxide compound, a silver halide photographic light-sensitive material including at least one silver halide emulsion layer and containing in at least said emulsion layer or other hydrophilic layer a compound represented by formula (I). ##STR1## wherein: A and A' each represents a hydrogen atom or an alkalihydrolyzable group;R.sub.1, R.sub.2, and R.sub.3 each represents a group capable of substituting a hydrogen atom on the hydroquinone nucleus, with R.sub.2 and R.sub.3, A and R.sub.1, or A and R.sub.2 together form a ring; andX represents a group which shows a development-inhibiting effect after being released.
摘要翻译:公开了一种用于形成照相图像的方法,包括在聚环氧烷化合物存在下照相显影包含至少一个卤化银乳剂层的卤化银照相感光材料,并至少包含所述乳剂层或其它亲水层 由式(I)表示的化合物。 (I)其中:A和A'各自表示氢原子或碱可水解的基团; R 1,R 2和R 3各自表示能够用氢取代氢醌原子的基团,其中R2和R3,A和R1,或A和R2一起形成环; X表示在释放后表现出显影抑制作用的基团。
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 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 protective layer. The material contains a photosensitive silver halide emulsion and inside fogged silver halide emulsion as well as a disulfide compound. The disulfide compound is a compound represented by the general formula (I):A--S--S--B (I)wherein A and B independently represent an alkyl group, an aralkyl group, an aryl group, a heterocyclic group or ##STR1## wherein R represents an alkyl group, an aryl group, an aralkyl group, a heterocyclic group or an amino group. The material can form images having high contrast and a high maximum density. Further, the material has high sensitivity to light and can be developed at a low temperature in a reduced amount of time.