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Method for preparing silver halide emulsion

  • US 6,096,495 A
  • Filed: 07/10/1998
  • Issued: 08/01/2000
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. A method for preparing a silver halide emulsion, comprising:

  • introducing a silver salt solution and a halide solution through separate introduction tubes, said silver salt solution containing a maximum of 0.01 mol per liter of a silver salt,mixing the silver salt and halide solutions to react a silver salt and a halide to form silver halide grains,discharging a reaction mixture solution through a discharge conduit andusing a mixing apparatus in which the introduction tubes and the discharge conduit are linked together so that all center axes of the introduction tubes and discharge conduit intersect at a single point,wherein the silver salt solution and the halide solution are independently introduced at a linear velocity of not less than 4.0 m/sec and a Reynolds number of not less than 3,000.

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