PREPARATION OF SILVER HALIDE EMULSION

PURPOSE: To produce an emulsion having an improved sensitivity/grain ratio. CONSTITUTION: A silver halide emulsion containing till 20mol.% AgI is prepared by precipitating the silver halide emulsion A containing up to 100mol.% AgI and adding the silver halide emulsion B containing up to 40mol.% AgI...

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Bibliographische Detailangaben
Hauptverfasser: ROTAA ENDORESU, HANSU EERUSHIYUREGAA, HANSUUURURIHI BORUSUTO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE: To produce an emulsion having an improved sensitivity/grain ratio. CONSTITUTION: A silver halide emulsion containing till 20mol.% AgI is prepared by precipitating the silver halide emulsion A containing up to 100mol.% AgI and adding the silver halide emulsion B containing up to 40mol.% AgI under the presence of at least two compounds among imidazole. histidine and other five- or six-membered ring heterocyclic compd.