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JPS5779940A Expired / Lapsed JP ⏱️ 0.0 years remaining

Direct positive silver halide color photographic material

Assignee: Konica Minolta Inc
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Filing: 1980-11-06
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Granted: —
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Expires: 2000-11-06
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Abstract

Abstract PURPOSE:To obtain a positive imae superior in sensitivity, gradation, etc., by providing a core/shell type intenal latent image type silver halide emulsion layer having a blue sensitive core containing a sensitizing dye having 465-495nm photosensitivity maximum wavelengths, and a shell having a specified silver halide composition. CONSTITUTION:The direct positive photographic material of this invention has a core/shell type internal latent image type silver halide emulsion layer consisting of a blue-sensitive core containing a sensitizing dye having 465-495nm photosensitivity maximum wavelengths, and a shell having a silver halide composition containing >=75mol% AgCl among silver chlorobromoiodide, thus permitting a photographic material suitable for copying, high in sensitivity and contrast, and good in development stability to be obtained.

Inventors

  • 👤 Junichi Kono

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-28 01:25
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/485; G03C1/48538; G03C1/48569; G03C1/48576; G03C1/48584

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