Fuji Photo Film Company, Limited

Fujifilm Corporation

Mitsunori Hirano

Morio Yagihara

Hisashi Okada

Kiyoshi Morimoto

Kouta Fukui

Tadashi Ito

Keiichi Adachi

Eiichi Okutsu

Kunio Ishigaki

Tsumoru Hirano

Makoto Umemoto

Tokuju Oikawa

Masato Hirano

Yoshihiro Takagi

Nobuaki Inoue

Kohzaburoh Yamada

Taku Nakamura

Minoru Yamada

Katsumi Hayashi

Yoshinori Taguchi

Katsuyuki Watanabe

Hidekazu Oohashi

Koji Wariishi

Ikuo Kawauchi

Senzo Sasaoka

Tetsuo Yoshida

Takashi Toyoda

Yasutomo Kawanishi

Hiroshi Hayakawa

Masasi Ogawa

Harumi Watanabe

Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer and at least one hydrophilic colloid layer on a support, wherein silver halide in the silver halide emulsion layer has a silver bromide content of 40 to 90 mol %, and the silver halide emulsion layer is spectrally sensitized with a specific dye.

Silver halide photographic light-sensitive material

Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.

Disclosed are a silver halide photographic light-sensitive material comprising silver halide containing a metal complex having a cyanide ligand in a silver halide emulsion layer and comprising a hydrazine compound having an onium group in the molecule, and a method of developing the silver halide photographic light-sensitive material with a developer having a pH of 9.0-11.0. The silver halide photographic light-sensitive material of the present invention can provide high sensitivity, high processing stability and high contrast images.

Silver halide photographic light-sensitive materials and method for development of the same

A concentrated fixing solution which includes at least a thiosulfate, a water-soluble aluminum salt, and a compound having an absorbance of from 0.25 to 1.15 by a prescribed colorimetric method, and does not substantially contain a boron compound is disclosed. A method for processing a silver halide photographic material by using the concentrated fixing solution is also described.

Concentrated fixing solution and method for processing silver halide photographic material using the same

A development processing method comprising a step of developing a silver halide photographic material having at least one silver halide emulsion layer with a developing solution containing a hydroquinone developing agent, wherein said developing solution has a pH of from 9.0 to 11.0, and contains a compound represented by formula (I) and a compound represented by formula (II) in a concentration ratio of the compound represented by formula (II)/the hydroquinone developing agent of from 0.03 to 0.12: ##STR1## wherein the symbols in these formulae are defined in the specification.

Method for processing silver halide photographic material

A developing solution for silver halide photographic material contains a six-membered heterocyclic compound having two nitrogen atoms as the constituent atoms of the six-membered ring and mercapto group, hydroxyl group and at least one substituent group other than hydrogen atom and a five-membered heterocyclic compound having two to three nitrogen atoms as the constituent atoms of the five-membered ring and at least one mercapto group. There is also disclosed a method for processing a silver halide photographic material with said developing solution.

Developing solution for silver halide photographic material and method

A development processing method is described, which includes the steps of (a) exposing an ultrahigh-contrast silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and (b) developing the exposed silver halide photographic material with a developer while the developer is replenished with a development replenisher, wherein the developer and the development replenisher each contains a dihydroxybenzene developing agent and an auxiliary developing agent exhibiting a superadditive property to the dihydroxybenzene developing agent, and both the developer and the development replenisher have such a property that an increase of the pH is 0.25 or less when 0.1 mol of sodium hydroxide is added to 1 liter thereof; the developer has a pH from 9.5 up to but excluding 11.0; and the developer replenisher is added in an amount of 225 ml/m.sup.2 or less.

Development processing method of ultrahigh-contrast black-and-white

A process for developing a silver halide photographic light-sensitive material is disclosed, comprising processing, after exposure, a silver halide photographic light-sensitive material which comprises a support having thereon at least one light-sensitive silver halide emulsion layer, the emulsion layer or other hydrophilic colloid layer containing a hydrazine-base nucleating agent having an anionic group in the vicinity of the hydrazine group or a nonionic group of forming an intramolecular hydrogen bond with the hydrogen atom of the hydrazine, or containing at least one hydrazine nucleating agent selected from the compounds represented by formula (I), and a nucleating accelerator, with a developer having a pH of from 9.0 to 11.0 and containing:

Method for developing silver halide photographic light-sensitive material

A method for processing a silver halide photographic material is disclosed and the photographic material has a support thereon, comprising at least one silver halide emulsion layer and containing a hydrazine compound represented by following formula (I) in the above emulsion layer or the other hydrophilic colloid layers, which comprises processing the silver halide photographic material after exposure in a developing solution containing:

A method for processing silver halide photographic material is disclosed, which has a support thereon at least one silver halide emulsion layer and at least one protective layer provided over said emulsion layer in which each of the photographic materials contains colloidal silica in at least one emulsion layer and is at most 200% in the total swelling degree of the whole hydrophilic colloid layers provided on the side of said emulsion layer, and after optical exposure said photographic materials are developed with a developer adjusted to pH 9.5-12.0 and containing at least (1) a hydroquinone developing agent in a concentration of from 0.2 to 0.75 mole/l, (2) an auxiliary developing agent of 1-phenyl-3-pyrazolidone type and/or an auxiliary developing agent of p-aminophenol type in a concentration of from 0.001 to 0.06 mole/l, (3) free sulfite ions in a concentration of from 0.3 to 1.2 mole/l, (4) a compound represented by the following formula (I), and (5) a compound represented by the following formula (II) in a concentration bearing a ratio of from 0.03 to 0.12 to the concentration of the hydroquinone developing agent: ##STR1## wherein the above substituents are defined in the specification.

Method for processing silver halide photographic materials

Development of silver halide photosensitive material with a developer containing a developing agent and a free sulfite is accompanied by deposition of silver sludge. Silver sludge is effectively suppressed by adding to the developer (a) a six-membered heterocyclic compound which has a six-membered ring containing two nitrogen atoms and has a mercapto group, a hydroxyl group and one or two substituents having 2 to 20 carbon atoms in total or (a') a six-membered heterocyclic compound which has a six-membered ring containing three nitrogen atoms and has a mercapto group and a hydroxyl group.

Development of silver halide photosensitive material and developer

A method of forming a black-and-white image of very high contrast having a gamma value of 8 or above is disclosed, using a negative imagewise exposed photosensitive material comprising a support having thereon at least one hydrophilic colloid layer, at least one layer which is a silver halide emulsion layer, at least one of said hydrophilic colloid layer containing a hydrazine derivative represented by formula (I), comprising processing the photosensitive material with a developer having a pH of 11.2 or lower, said developer being substantially free from benzotriazoles to thereby provide a wide exposure latitude and steady image formability: ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a carbamoyl group or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## or an iminomethylene group; and each of A.sub.1 and A.sub.2 represents a hydrogen atom, or one of A.sub.1 and A.sub.2 is a hydrogen atom and the other is an alkylsulfonyl group, an arylsulfonyl group, or an acyl group.

Method of forming images

A high-contract development process is disclosed, which comprises developing a silver halide photographic material containing at least a hydrazine derivative with a developer having a pH of from 10.0 to 12.3 and containing

High-contrast development process for silver halide photographic material

A process for development-processing a black-and-white silver halide light-sensitive material is disclosed, which comprises using a developer containing at least one compound represented by formulae (I) and (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents hydrogen atom, an alkyl group or an aryl group;

Process for photographic development processing

A method for forming a high contrast negative image comprising the steps of:

Growing community of inventors

Kanagawa, Japan

Mitsunori Hirano