EP0490302A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Silver halide photographic materials
Assignee: Fujifilm Holdings Corp
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Filing: 1991-12-06
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Granted: —
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Expires: 2011-12-06
Abstract
Abstract A silver halide photographic material is disclosed, comprising a support having thereon at least one silver halide emulsion layer and at least one protective layer above the emulsion layer, wherein colloidal silica is present in at least one of the emulsion layers and the dynamic friction coefficient of the surface of the outermost layer of
Inventors
- 👤 Kunio Ishigaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 12:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
60 words
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer and at least one protective layer above the emulsion layer, wherein colloidal silica is present in at least one of the emulsion layers and the dynamic friction coefficient of the surface of the outermost layer of the protective layer is 0.35 or less.
Claim 2
Dependent Claim
20 words
A silver halide photographic material as in Claim 1, wherein the outermost layer of the protective layer contains a lubricant.
Claim 3
Dependent Claim
26 words
A silver halide photographic material as in Claim 1, wherein the silver halide emulsion layer or other hydrophilic colloid layers contain at least one polyhydroxybenzene compound.
Claim 4
Dependent Claim
57 words
A silver halide photographic material as in Claim 1, wherein the protective layer comprises two or more layers, the outermost of these layers contains a lubricant and colloidal silica and the protective layer which is between the outermost protective layer and the emulsion layer contains a polymer latex having a glass transition point of 20°C or less.
Claim 5
Dependent Claim
27 words
A silver halide photographic material as in Claim 1, wherein the total processing time when processing in an automatic processor is from 15 seconds to 60 seconds.
Claim 6
Dependent Claim
37 words
A silver halide photographic material as in Claim 1, wherein a dry weight ratio of the colloidal silica based on the gelatin in the layer in which the colloidal silica is present is from 0.05 to 1.0.
Claim 7
Dependent Claim
32 words
A silver halide photographic material as in Claim 2, wherein a ratio by weight of the lubricant based on the amount of binder in the outermost layer is from 0.01 to 1.0.
References Cited (Backward Citations)
No citation records indexed.
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