Fuji Photo Film Company, Limited

Ikutaro Horie

Nobuo Yamamoto

Kameji Nagao

Keiichi Adachi

Masakazu Yoneyama

Hidefumi Sera

Hisashi Shiraishi

Takashi Naoi

Naohiko Sugimoto

Yasuhiro Nakayama

Akikazu Mikawa

Hidetoshi Kobayashi

Nobuo Tsuji

Shinji Sakaguchi

Masaki Satake

Hideki Tomiyama

Takushi Miyazako

Nobuyuki Iwasaki

Kimitaka Kameoka

Masashi Ishiyama

Hukuji Sakakibara

Masamichi Shimazaki

Teiichi Tomizuka

Nagao Kameji

An image receiving element for use in a peel-apart type silver salt diffusion transfer process comprising:

Image receiver element for use in silver salt diffusion transfer

A cover film for use in microscopy which has an excellent adhesion with a slide glass and does not cause blocking during storage is obtained by coating a solution of a polymer adhesive having a glass transition temperature of at least 50.degree. C. in an organic solvent on a transparent substrate and evaporating the organic solvent.

Cover film for microscopy

A color diffusion transfer photographic element comprised of a light-sensitive dye release and receiving sheet and a cover sheet, wherein development, dye release and dye transfer occur in the presence of an alkaline processing solution, and wherein the cover sheet is provided with a neutralizing system which causes neutralization by an alkaline processing solution to proceed by at least a first and second stage, wherein the first stage is characterized in that neutralization (lowering) of the pH of an alkaline processing solution occurs to the extent to interrupt development and dye release reactions but at which the transfer of a dye for forming a transfer image can continue, and a second stage at which the pH of the processing solution is gradually lowered to a final value which is stably maintained over prolonged storage, the photographic element characterized in that the neutralizing system comprises at least a neutralizing layer, a second neutralization timing layer, an auxiliary neutralizing layer, and a first neutralization timing layer as viewed from the support side, and that said auxiliary neutralizing layer contains 10 to 100% by weight of a polymer containing as a constituent a monomer unit represented by the general formula: ##STR1## wherein R represents a hydrogen atom or substituted or substituted or unsubstituted alkyl group; X represents a hydrogen atom or substituted or unsubstituted alkyl group, hydroxy group or cyano group, or halogen atom; Y represents a monomer unit obtained by copolymerization of at least one monomer selected from copolymerizable ethylenically unsaturated carboxylic acid, acid anhydride, half ester of acid anhydride, and salts thereof; and a represents a mole percentage of 30 to 70%.

Color diffusion transfer element comprising two neutralizing layers and

A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a surface layer thereof containing an organic fluoro-compound and a carboxy group-containing compound, resulting in an improvement in the physical characteristics of the surface.

Photographic light-sensitive material

A method for preventing adhesion in a photographic light-sensitive material comprising a support having thereon at least one silver halide light-sensitive emulsion layer which comprises providing, as an outermost layer on at least one side thereof, a layer containing gelatin with the amount of gelatin coated being about 0.2 to about 0.8 g/m.sup.2 and containing finely divided particles of a matting agent having an average particle size of about 0.1 to about 10 microns.

Method for preventing adhesion of silver halide photographic

A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer and an outermost layer thereof containing gelatin and colloidal silica prepared by adding potassium hydroxide to an aqueous dispersion of colloidal silica and a method of improving the antiadhesive property of a photographic light-sensitive material which comprises incorporating colloidal silica prepared by adding potassium hydroxide to an aqueous dispersion of colloidal silica into an outermost layer containing gelatin of a photographic light-sensitive material.

Antiadhesive photographic materials and method of improving antiadhesive

An element for a diffusion transfer photographic light-sensitive material comprising a synthetic resin film support having thereon an image-receiving layer, a light-sensitive silver halide emulsion layer and a layer of a carboxylic acid polymer wherein the carboxylic acid polymer is cross-linked with a polyhydric alcohol in the presence of a condensation-type cross-linking agent with the proviso that the layer of the carboxylic acid polymer is positioned other than between the image-receiving layer and the light-sensitive silver halide emulsion layer.

Diffusion transfer photographic material having a crosslinked carboxylic

A photographic light-sensitive material including a support, a non-light sensitive uppermost layer consisting of at least one organic synthetic high polymer compound as a film forming material and at least one light-sensitive layer between the support and the uppermost layer, said organic high polymer compound being selected from the group consisting of the following polymers (A) to (F):

Layers used to prevent reticulation in photographic elements

A process for hardening, e.g., gelatin, in particular, a gelatin used for photographic light-sensitive materials, which comprises treating gelatin, a non-gelatin hydrophilic high molecular weight material containing primary or secondary amino groups or a composition containing the same with a compound represented by the following general formula (I): ##STR1## WHEREIN R.sub.1 and R.sub.2, which may be the same or different, each represents a monovalent residue which is bonded through a carbon atom or a sulfur atom thereof to the nitrogen atom forming the carboxylic acid ester, and R.sub.1 and R.sub.2 may combine to form a ring structure; R is a divalent or trivalent residue which is bonded through a carbon atom or a nitrogen atom thereof to the carbon atom of the carboxyl group in the carboxylic acid ester, and n is 2 when R is a divalent residue and n is 3 when R is a trivalent residue.

Process for hardening gelatin

A silver halide photographic light-sensitive material in which a surface layer thereof contains an inorganic material comprising as a main component alumina-magnesium silicate to improve upon the characteristics of the surface.

A photographic light-sensitive material comprising a support having thereon at least one silver halide photographic emulsion layer and at least one of the layers of the photographic light-sensitive material containing a compound represented by the following general formula (I) or (II); ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic residue, or R.sub.1 and R.sub.2 can combine to form a ring; and Z represents an alkylene group; or an organic acid salt or a mineral acid salt of the compound represented by the general formula (I) or (II). The photographic material can be developed at an elevated temperature without fog information and a decrease in photographic sensitivity.

Photographic light-sensitive material containing anti-fogging agent

A photographic light-sensitive material comprising a support having thereon at least one silver halide photographic emulsion layer with at least one of the layers of the photographic light-sensitive material containing a compound represented by the following general formula (I) or (II) ##EQU1## wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic ring residue, and R.sub.2 and R.sub.3 can combine to form an alkylene group; R.sub.4 represents those groups other than a hydrogen atom as described for R.sub.1, R.sub.2 and R.sub.3 ; and R.sub.5 represents an alkylene group of a polyoxyalkylene group having at least 4 carbon atoms, or the organic acid salt or mineral acid salt thereof.

Silver halide photographic material containing an isourea derivative as

An antistatic photographic sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein a surface active copolymer containing in the main chain a repeating unit represented by the formula (I) ##EQU1## wherein Y represents an organic residue having 4 to 22 carbon atoms; n represents the average number of ethyleneoxy units and is 1 to 100; and M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an ammonium group or an alkylammonium group is present in at least one of a surface of the support and a photographic layer.

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Minami-ashigara, Japan

Ikutaro Horie