Fuji Photo Film Company, Limited

Shuzo Suga

Nobuaki Miyasaka

Koichi Kuno

Hideo Ikeda

Masaki Satake

Yoshio Inagaki

Hiroyuki Mifune

Nobuaki Inoue

Taku Nakamura

Hiroshi Kawamoto

Tadao Shishido

Yasuo Mukunoki

Shigeki Yokoyama

Yukio Maekawa

Sumito Yamada

Senzo Sasaoka

Takashi Naoi

Tetsuo Yoshida

Tsutomu Arai

Yoshiro Kawashima

Hiroyuki Goto

Yasuhiro Okamoto

A silver halide photographic material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein at least 30 mol % of silver halide grains contained in the emulsion of the emulsion layer are silver chloride, the emulsion contains not more than 1.times.10.sup.-6 mol per mol of silver of a rhodium compound and/or not more than 1.times.10.sup.-5 mol per mol of silver of an iridium compound, and the silver halide grains have been selenium-sensitized. There is also disclosed a method for processing the silver halide photographic material.

Silver halide photographic materials and method for processing the same

A silver halide photographic material comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein the emulsion is spectrally sensitized with at least one compound selected from the compounds represented by the following formulae (1) and (2) and contains a compound represented by the following formula (5). ##STR1##

Silver halide photographic material

Disclosed is a silver halide photographic material containing a compound of formula (1) or (2): ##STR1## where DYE represents a methine dye residue; G and G.sup.- each represent a substituent for the methine dye residue, and are represented by formulae (3) and (4), respectively; and n represents an integer of from 1 to 6.

Methine compounds and silver halide photographic materials containing

A method for forming an image is disclosed, comprising imagewise exposing a negatively working silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer with light having a wavelength of from 460 to 600 nm and containing substantially no light having a wavelength of 360 nm or less, said emulsion layer containing at least one sensitizing dye having an absorption maximum (.lambda..sub.max) at a wavelength of form 450 nm to 580 nm, and said emulsion layer or other hydrophilic colloidal layer containing at least one hydrazine derivative. The method provides an image having excellent image quality either in enlargement or reduction work without causing reduction in sensitivity or inducing black pepper.

Image formation method and silver halide photographic material therefor

A silver halide photographic element with high sensitivity and less processing reliance in a high-illuminance and short-time light exposure which can be processed quickly is provided. The photographic element comprises at least one light-sensitive silver halide emulsion layer which has silver halide grains containing an iridium compound and at least one light-insensitive hydrophilic colloid layer.

A silver halide photographic emulsion is subjected to sulfur or gold-sulfur sensitization in the presence of a combination of (1) at least one of an organic thioether compound or a tetrasubstituted thiourea and (2) a nitrogen-containing heterocyclic compound, to achieve the prevention of pressure desensitization and safelight aptitude deterioration.

Method for producing silver halide photographic emulsion and silver

A negative type silver halide photographic material is disclosed, which comprises a support having thereon at least one silver halide emulsion layer and at least one other hydrophilic colloidal layer, wherein at least one said silver halide emulsion layer or at least one said other hydrophilic colloidal layer contains a hydrazine derivative and a polyacrylamide derivative.

A silver halide photographic material is disclosed. The material is comprised of a support having thereon at least one silver halide emulsion layer, wherein at least one of the silver halide emulsion layer and another constituent layer contains a fluorine-containing nonionic surface active agent, a fluorine-containing ionic surface active agent and a fluorine-free nonionic surface active agent.

A silver halide photographic material is described, comprising a support bearing at least one silver halide photographic emulsion layer and at least one auxiliary layer on one side or both sides thereof, wherein the silver halide photographic emulsion layer is a layer made of a light-sensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, or is composed of a layer made of the light-sensitive silver halide emulsion containing silver iodide and a layer made of the internally fogged silver halide emulsion, and the auxiliary layer contains substantially non-light-sensitive silver halide grains having an average grain size of not more than 0.5 .mu.m.

A silver halide photographic material having a high covering power with improved pressure resistance and antistatic properties upon development, which comprises at least one silver halide photographic emulsion layer disposed on at least one side of a support, wherein at least one of the silver halide photographic emulsion layer(s) contains a photosensitive silver halide emulsion containing silver iodide and an internally fogged silver halide emulsion, and at least one of the silver halide photographic emulsion layer(s) and an auxiliary layer(s) which is disposed on the same side of the support as that of the support having said emulsion containing silver iodide contains at least one polyoxyethylenic surface active agent selected from the group consisting of compounds represented by formula (I) and (II) ##STR1## wherein R.sub.1, R.sub.2, R.sub.6, R.sub.8, R.sub.10, and R.sub.12 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, aryl group alkoxy group, or aryloxy group, a halogen atom, an acyl group, an amido group, a sulfonamido group, a carbamoyl group, or a sulfamoyl group, R.sub.5, R.sub.7, R.sub.9 and R.sub.11 each represents a substituted or unsubstituted alkyl group, aryl group alkoxy group, or aryloxy group, a halogen atom, an acyl group, an amido group, a sulfonamido group, a carbamoyl group, or a sulfamoyl group; R.sub.3 and R.sub.4 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, aryl group, or heterocyclic aromatic ring, or groups in at least one combination of R.sub.3 and R.sub.4, R.sub.5 and R.sub.6, R.sub.7 and R.sub.8, R.sub.9 and R.sub.10, and R.sub.11 and R.sub.12 are connected to each other to form a substituted or unsubstituted ring; n.sub.1, n.sub.2, and n.sub.3 each represents the average polymerization degree of ethylene oxide within the range of from 5 to 50; and m represents an average polymerization degree of from 5 to 50.

Silver halide photographic material comprising a protective layer

The present invention relates to a silver halide emulsion containing a thiocyanate and having a high sensitivity in particular to light of a low illuminance. According to the present invention, a silver halide emulsion is provided, wherein the IR absorbance at 2052 cm.sup.-1 due to thiocyanate ion contained in the silver halide grain of the emulsion is observed and a tricarboxylic acid or its salt is contained in the emulsion.

Silver halide emulsion

This invention relates to a silver halide emulsion containing halogen conversion-type silver halide grains and light sensitive material comprising such as emulsion. The grains are selected from the group consisting of halogen conversion-type silver chlorobromide grains, halogen conversion-type silver iodobromide grains and halogen conversion-type chloroiodobromide grains, the grains having substantially no surface sensitivity, the average grain size thereof being not more than 0.30 micron, and the grains containing from 0 to 4 mol % of silver iodide. The grains have particularly high ability to trap iodide ions so that light-sensitive material comprising the emulsion containing the grains have law dependence on formulation of developing solution and improved properties in connection with sensitivity, fog, gamma, maximum density.

A silver halide photographic material having on a support at least one silver halide emulsion layer which contains light-sensitive tabular silver halide grains, with a ratio of grain diameter to grain thickness of 5 or more and a polymeric hardener. The silver halide photographic material has both increased covering power and scratching resistance, and is suitable for high-temperature rapid development processing.

Growing community of inventors

Kanagawa, Japan

Shuzo Suga