摘要:
A silver halide photographic material comprising a support, having thereon one or more hydrophilic colloid layers, wherein at least one of the hydrophilic colloid layers is a silver halide emulsion layer, and wherein the silver halide emulsion layer or another hydrophilic colloid layer contains a compound represented by general formula (I):Y--[(X).sub.n --A.sub.0 --B.sub.0 ].sub.m (I)wherein Y represents a group which is adsorbed on silver halide, X represents a divalent group comprising an atom or group of atoms selected from among a hydrogen atom, a carbon atom, a nitrogen atom, an oxygen atom and a sulfur atom, A.sub.0 represents a divalent linking group which has at least two alkyleneoxy units, B.sub.0 represents an amino group, an ammonium group or a nitrogen containing heterocyclic group, m represents 1, 2 or 3, and n represents 0 or 1, as well as a method for processing a silver halide photographic material in the presence of a compound according to general formula (I).
摘要:
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains at least one compound represented by formula (I): ##STR1## wherein ED represents a group capable of releasing (Time).sub.t -Ind upon a reaction with an oxidation product of a developing agent; Time represents a divalent linking group; t represents 0 to 1; and Ind represents a group represented by formula (II): ##STR2## wherein X represents a monovalent group; and s represents an integer of from 0 to 4.The compound represented by formula (I) is excellent in preservability and rapidly releases a development inhibitor.The silver halide photographic material provides an ultrahigh contrast image using a highly stable developing solution and is particularly suitable for use in photomechanical processes.
摘要:
A silver halide photographic material having on a support a first light-sensitive layer containing a light-sensitive silver halide emulsion and a second light-sensitive layer containing a light-sensitive silver halide emulsion, wherein the first light-sensitive layer and/or a hydrophilic colloid layer contains a hydrazine compound, the second light-sensitive layer contains a redox compound capable of releasing a development inhibitor by oxidation, and the sensitivity of the first light-sensitive layer is higher by 0.2 to 1.0 than that of the second light-sensitive layer.
摘要:
A silver halide photographic material comprising a support having thereon at least one sensitive silver halide emulsion layer, wherein said emulsion layer comprises a monodisperse emulsion and said emulsion layer or other hydrophilic colloid layer contains at least one hydrazine derivative and at least one redox compound capable of releasing a development inhibitor when oxidized.
摘要:
A silver halide photographic material suitable for photomechanical process is disclosed, which has at least one silver halide photographic emulsion hydrophilic colloid layer and contains at least one redox compound capable of releasing a development inhibitor by oxidation and at least one compound of general formula (I') in the photographic emulsion layer or in at least one other hydrophilic colloid layer: ##STR1## wherein the variable terms are as defined in the specification.
摘要:
An ultra-high contrast negative type silver halide photographic material is disclosed, wherein at least one hydrazine derivative of formula (I) and at least one compound of formula (IV) are contained in a silver halide emulsion layer or another hydrophilic collide layer of the photographic material: ##STR1## wherein A.sub.1 and A.sub.2 both represent hydrogen atoms, or one represents a hydrogen atom and the other represents a sulfinic acid residual group or an acyl group, R represents an aliphatic group, an aromatic group or a heterocyclic group, and X represents a group as indicated by formulae (II) and (III) ##STR2## wherein X.sub.1 and X.sub.2 each represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, and X.sub.1 and X.sub.2 may be joined together to form a ring;--O--X.sub.3 (III)wherein X.sub.3 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group; andY.sub.0 [(A.sub.0).sub.n B].sub.m (IV)wherein Y.sub.0 represents a group which promotes adsorption on silver halide, A.sub.0 represents a divalent linking group, B represents an amino group, an ammonium group, or a nitrogen containing heterocyclic group, m represents 1, 2 or 3, and n represents 0, or 1.
摘要:
A silver halide photographic material which has at least one photosensitive silver halide emulsion layer containing a hydrazine derivative, and in which said emulsion layer and/or a hydrophilic colloid layer which is different from said emulsion layer contains a redox compound which release a development inhibitor when it is oxidized and an organic compound which is a melting-pointlowering agent which is essentially insoluble in water and which has the effect of lowering the melting point of said redox compound when the former has been mixed with the latter.
摘要:
A silver halide photographic material which comprises a support having thereon at least one hydrophilic colloid layer being a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer containing a compound represented by the following general formula (I): ##STR1## wherein A.sub.1 and A.sub.2 both represent a hydrogen atom, or one of A.sub.1 and A.sub.2 is a hydrogen atom and the other is a sulfonyl group or an acyl group; R.sub.1 represents an aliphatic group or an aromatic group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfinyl group, a sulfoxy group, a group of ##STR2## wherein R.sub.2 is an alkoxy group or an aryloxy group, a group of ##STR3## or an iminomethylene group; X.sub.1 represents a residue of a nitrogen-containing heterocyclic ring; and at least one of R.sub.1 and X.sub.1 having an adsorption-accelerating group on silver halide.
摘要:
A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer, at least one of which is a silver halide photographic emulsion layer, is disclosed. At least one of the silver halide emulsion layers or other hydrophilic colloid layers of the photographic material contains a compound represented by formula (I): ##STR1## wherein, A.sub.1 and A.sub.2 both represent hydrogen atoms or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a ##STR2## group wherein R.sub.2 represents an alkoxy group or an aryloxy group, a ##STR3## group or an iminomethylene group, X.sub.1 is a moiety which instigates a ring-forming reaction by cleaving the --G.sub.1 --X.sub.1 moiety from the residual molecule and forms a cyclic structure containing the atoms of the --G.sub.1 --X.sub.1 moiety, and at least one of R.sub.1 and X.sub.1 has a silver halide adsorption accelerating group.
摘要:
A silver halide photographic material is disclosed, which comprises at least one silver halide emulsion layer on a support, at least one of the emulson layer and other layers contains at least one hydrazine derivative and at least one of these layers contains at least one compound having both a silver halide adsorbing group and an acid group represented by the general formula (I):C-L-D (I)wherein C represents a group that enhances adsorption to silver halide, D represents an acid group, and L represents a divalent linking group,and possessing substantially no absorption maximum in the visible region. A method for forming superhigh contrast negative images is also disclosed, comprising imagewise exposing this silver halide photographic material, followed by developing with a developing solution containing sulfite ions in an amount of about 0.15 mol or more per liter and having a pH of about 10.5 to about 12.3.