Silver halide photographic photosensitive material and its production
AssigneeFuji Photo Film Co., Ltd.
InventorsKenji Nakajima, Shouji Nishida
Life of this patent
Estimating the term…
Abstract
This invention provides a means for improving rapid drying ability upon development and preservability of developing solution which comprises interposing a layer of water-soluble polymer having an average molecular weight of 300,000 or more between a non-photosensitive hydrophilic colloid layer and a hydrophobic polymer layer coated on the opposite side of a support to a silver halide photographic emulsion layer, or storing dried the above silver halide photographic photosensitive material with the interposed layer at the glass transition temperature of the hydrophobic polymer or higher.
Claims9
A silver halide photographic photosensitive material which comprises a support, a silver halide photographic emulsion layer coated on one side of the support, and a non-photosensitive hydrophilic colloid layer and a hydrophobic polymer layer coated on the other side of the support locating the hydrophobic polymer layer on the outside, wherein a layer of water-soluble polymer having an average molecular weight of 300,000 or more is interposed between the non-photosensitive hydrophilic colloid layer and the hydrophobic polymer layer.
A method of producing a silver halide photographic photosensitive material which comprises applying a silver halide photographic emulsion layer coating solution containing hydrophilic colloid as binder onto one side of a support and applying a non-photosensitive hydrophilic colloid layer coating solution containing hydrophilic colloid as binder and a hydrophobic polymer layer simultaneously on the other side, wherein a layer of water-soluble polymer having an average molecular weight of 300,000 or more is interposed between the non-photosensitive hydrophilic colloid layer and the hydrophobic polymer layer.
Dependencies are inferred from the claim text.