Process for the preparation of silver halide photographic element
The present invention relates to a process for the manufacturing of a silver halide element comprising a silver halide emulsion-making step, a chemical and optical sensitization step, and a silver halide emulsion coating step, characterized in that said process comprises the step of adding to said s...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention relates to a process for the manufacturing of a silver halide element comprising a silver halide emulsion-making step, a chemical and optical sensitization step, and a silver halide emulsion coating step, characterized in that said process comprises the step of adding to said silver halide emulsion, before the coating step, an aryl compound having at least two substituents each of these represented by an hydroxyl group and/or a sulfonic group in an amount of less than 0.03 moles per mole of silver. The use of such an aryl compound for increasing the speed to Dmin ratio and a silver halide element comprising such an aryl compound is also claimed. |
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