PHOTOSENSITIVE SILVER HALIDE EMULSION AND ITS PREPARATION

PURPOSE:To obtain a photosensitive silver halide emulsion superior in sensitivity, contrast, graininess, etc., by simultaneously adding an aq. soln. of AgNO3 and an aq. soln. of KBr and KI to an aq. gelatin soln. contg. silver halide solvent while pAg is being maintained constant. CONSTITUTION:An aq...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	AYATO HIROSHI, ISHIMARU SHINGO, SHIBAHARA YOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To obtain a photosensitive silver halide emulsion superior in sensitivity, contrast, graininess, etc., by simultaneously adding an aq. soln. of AgNO3 and an aq. soln. of KBr and KI to an aq. gelatin soln. contg. silver halide solvent while pAg is being maintained constant. CONSTITUTION:An aq. soln. of watler-soluble silver salt, such as AgNO3, and an aq. soln. of water-soluble alkali metal halide, such as KI and KBr, is simultaneously added in the presence of a silver halide solvent, such as NH3, to an aq. soln. of gelatin, while pAg is being kept constant in the range of 7.0-8.3, thus obtaining an objective silver iodobromide emulsion substantially composed of cubic or tetradecahedral crystalline grains having >=5mol% average AgI content, and a relative standard deviation of