EP 0445627 A1 19910911 - Silver halide photographic light-sensitive materials.
Title (en)
Silver halide photographic light-sensitive materials.
Title (de)
Fotografische lichtempfindliche Silberhalogenidmaterialien.
Title (fr)
Matériaux photographiques à l'halogénure d'argent sensibles à la lumière.
Publication
Application
Priority
JP 5013890 A 19900301
Abstract (en)
A silver halide photographic light-sensitive material is disclosed having a silver halide emulsion layer comprised of silver halide grains which contain at least silver chloride and which have been spectrally sensitized to infrared using at least one tricarbocyanine dye and/or dicarbocyanine dye which contains a 4-quinoline nucleus, wherein there is at least one hydrophilic colloid layer which contains at least one dye which is represented by general formula (F-I) indicated below and at least one dye which is represented by general formula (F-II) indicated below: <CHEM> wherein R<1>, R<2>, R<3>, R<4>, R<5> and R<6>, which may be the same or different, each represents a substituted or unsubstituted alkyl group; Z<1> and Z<2> each represents a group of non-metal atoms which is required to form a substituted or unsubstituted benzo-condensed ring, naphtho-condensed ring or five or six membered heterocyclic condensed ring; provided that R<1>, R<2>, R<3>, R<4>, R<5>, R<6>, Z<1> and Z<2> are groups such that the dye molecule has at least three acid groups; L<1>, L<2> and L<3> represent substituted or unsubstituted methine groups; X represents an anion; and n is 1 or 2, and n is 1 when the dye forms an intramolecular salt, <CHEM> wherein R21 and R24 each represents a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R22 and R25 each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, COR29 or SO2R29; R23 and R26 each represents a hydrogen atom, a cyano group, an alkyl group, an aryl group, -COOR27, -OR27, -NR27R28, -N(R28)COR29, represents an aliphatic group or an aromatic group and R27 and R28 each represents a hydrogen atom, an aliphatic group or an aromatic group); L4, L5, L6, L7 and L8 represent methine groups; n1 and n2 each represents 0 or 1; and M<(+)> represents hydrogen or some other univalent cation; provided that at least one of R21, R22, R23, R24, R25, R26, L4, L5, L6, L7 or L8 represents a group which has at least one carboxylic acid group or sulfonic acid group.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G03C 1/832 (2013.01)
Citation (search report)
- [YD] EP 0295698 A2 19881221 - FUJI PHOTO FILM CO LTD [JP]
- [Y] DE 3720138 A1 19880121 - FUJI PHOTO FILM CO LTD [JP]
- [Y] EP 0123983 A2 19841107 - FUJI PHOTO FILM CO LTD [JP]
- [YD] PATENT ABSTRACTS OF JAPAN vol. 11, no. 340 (P-634)(2787) 07 November 1987, & JP-A-62 123454 (FUJI) 04 June 1987,
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0445627 A1 19910911; EP 0445627 B1 19960911; DE 69121941 D1 19961017; DE 69121941 T2 19970130; JP H03251841 A 19911111
DOCDB simple family (application)
EP 91102835 A 19910226; DE 69121941 T 19910226; JP 5013890 A 19900301