The Physics and Chemistry of Gelatin. Photographic Characteristics of Gelatin in Comparison with Synthetic Protective Colloids.

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  • ゼラチンの物理と化学　　合成保護コロイドから見たゼラチンの写真特性

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Description

Characteristics of gelatin were compared with those of synthetic polymers such as thioether copolymer and imidazole copolymer for silver and gold digestion tests and for photographic behaviors when they were used for preparation of silver halide emulsion grains and chemical sensitization process. The following results were obtained.<BR>(1) Gelatin could reduce silver ion and gold ion in aqueous solutions.(2) Gelatincouldyieldsilver clusters in silver halide grains during their preparation and chemical sensitization processes, whereas synthetic polymers could not.(3) Gelatin retarded the rate of sulfur sensitization and improved sensitivity to fog ratio.(4) In the case of sulfur plus gold sensitization, the higher sensitivity and higher fog density were brought about with gelatin than with thioether copolymer, owing to the fact that gelatin formed silver or gold clusters on the surface of silver halide grains during digestion for the sensitization.

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Details 詳細情報について

  • CRID
    1390282681546643072
  • NII Article ID
    130004099096
  • DOI
    10.11454/photogrst1964.62.295
  • ISSN
    18845932
    03695662
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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