Photographic light-sensitive materials having improved film physical properties
AssigneeFuji Photo Film Co., Ltd.
InventorsTakashi Naoi, Ikutard Horie
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AssigneeFuji Photo Film Co., Ltd.
InventorsTakashi Naoi, Ikutard Horie
Estimating the term…
A silver halide photographic light-sensitive material having two or more hydrophilic colloid layers on at least one side of a support, wherein (i) a hydrophilic colloid layer positioned farther from the support contains gelatin, a matting agent having an average particle size of 1 to 5.mu. and colloidal silica and (ii) a hydrophilic colloid layer which is positioned nearer the support than the position of hydrophilic colloid layer (i) contains gelatin and a polymer latex.
A silver halide photographic light-sensitive element exhibiting good transparency after development comprising at least one silver halide emulsion layer on a support and two or more hydrophilic colloid layers on at least one side of said support, wherein (i) a hydrophilic colloid layer positioned farther from the support contains gelatin, a matting agent having an average particle size of 1 to 5.mu. and colloidal silica having an average particle size less than that of the matting agent and (ii) a hydrophilic colloid layer which is positioned nearer the support than the position of hydrophilic colloid layer (i) consists essentially of gelatin and a polymer latex comprising an aqueous dispersion of a water-insoluble polymer wherein the polymer has an average particle size of about 20 m.mu. to about 200 m.mu., said matting agent being present in an amount effective to decrease the adhesion of the hydrophilic colloid layer in which it is present, said collidal silica being present in an amount effective to improve the antiadhesive property of the hydrophilic layer in which it is present and said polymer latex being present in an amount effective to improve dimensional stability, gelatin present in the element layers serving as a hydrophilic binder.
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
With non-macromolecular additives: matting agents
Photosensitive materials characterised by the base or auxiliary layers: characterised by subbing layers or subbing means
Characterised by subbing layers or subbing means: macromolecular substances therefor
Photosensitive materials characterised by the base or auxiliary layers: rendered opaque or writable, e.g. with inert particulate additives
Term ended 13 Feb 1998 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
1. Field of the Invention
The present invention relates to silver halide photographic light-sensitive materials having improved film physical properties and, particularly, to silver halide photographic light-sensitive materials having excellent dimensional stability, good antiadhesive properties and good transparency after development.
2. Description of the Prior Art
To a surface of a polyethylene terephthalate film (thickness: 100.mu.) having a subbing layer thereon, a silver halide emulsion having the following Composition (1) was applied so as to form a layer having a dry thickness of 6.0.mu. and a silver content of 5.0 g/m.sup.2. Further, on the resulting silver halide emulsion layer, a protective layer having the following Composition (2) was coated according to the combination shown in Table 1 below. On the reverse side of the support, a gelatin back layer having the following Composition (3) was applied according to the combination shown in Table 2 so as to form a layer having a dry thickness of 5.mu. to obtain Samples (1) to (3).
Composition (1) Composition of Silver Halide Emulsion Layer.
Gelatin 5 g/m.sup.2