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Hand-held processing container with vacuum creating assembly and kit for roomlight processing of black-and-white photographic elements

  • US 5,956,539 A
  • Filed: 06/05/1998
  • Issued: 09/21/1999
  • Est. Priority Date: 11/14/1997
  • Status: Expired due to Fees
First Claim
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1. A processing kit comprising:

  • a black-and-white photographic silver halide element comprising a support having thereon one or more layers, at least one of said layers being a silver halide emulsion layer;

    said black-and-white photographic silver halide element further comprising;

    in one of said layers, a microcrystalline particulate dye that absorbs electromagnetic radiation in the visible and UV portions of the spectrum and is decolorized upon contact with a fixing agent other than a sulfite; and

    in each silver halide emulsion layer, a desensitizer that reduces sensitivity of the silver halide emulsion layer to electromagnetic radiation in the visible portion of the spectrum by trapping electrons generated by exposure to that electromagnetic radiation;

    a first vessel containing a black-and-white developing composition comprising from about 0.1 to about 0.5 mol/l of a black-and-white developing agent, and from about 0.25 to about 0.7 mol/l of a sulfite;

    a second vessel containing a fixing composition comprising from about 0.5 to about 2 mol/l of a fixing agent other than a sulfite;

    a hand-held container including a holder for holding in said container said black-and-white photographic silver halide element which has been exposed, and a manually actuated assembly for creating a vacuum within said container in order to draw processing compositions into said container to contact said exposed black-and-white photographic silver halide element; and

    complementary structure associated with said container and said first and second vessels for mating said container with one of said vessels to facilitate transfer of composition from said vessel into said container when said assembly is manually actuated to create a composition drawing vacuum within said container.

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