SU1210581A1 - Method of bromo-iodo-silver photographic emulsion preparing - Google Patents

Method of bromo-iodo-silver photographic emulsion preparing

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Publication number
SU1210581A1
SU1210581A1 SU3776143/04A SU3776143A SU1210581A1 SU 1210581 A1 SU1210581 A1 SU 1210581A1 SU 3776143/04 A SU3776143/04 A SU 3776143/04A SU 3776143 A SU3776143 A SU 3776143A SU 1210581 A1 SU1210581 A1 SU 1210581A1
Authority
SU
USSR - Soviet Union
Prior art keywords
silver
emulsifying
addition
aqueous
emulsion
Prior art date
Application number
SU3776143/04A
Other languages
Russian (ru)
Inventor
Ю.А. Бреслав
В.В. Пейсахов
В.В. Андреянов
Г.В. Берлин
В.А. Мыльцева
В.Г. Логинов
П.Н. Егорова
О.Н. Шварцер
Н.М. Медына
И.Н. Соколовская
Original Assignee
Всесоюзный Государственный Научно-Исследовательский И Проектный Институт Химико-Фотографической Промышленности
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный Государственный Научно-Исследовательский И Проектный Институт Химико-Фотографической Промышленности filed Critical Всесоюзный Государственный Научно-Исследовательский И Проектный Институт Химико-Фотографической Промышленности
Priority to SU3776143/04A priority Critical patent/SU1210581A1/en
Application granted granted Critical
Publication of SU1210581A1 publication Critical patent/SU1210581A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

FIELD: photoreagents. SUBSTANCE: method involves the controlled two-jet emulsifying by addition of potassium bromide and silver compound aqueous solutions to an aqueous-gelatin solution, emulsion washing off, chemical sensitization in the presence of sodium thiosulfate, potassium thiocyanate and gold perchlorate followed by spectral sensitization. Before emulsifying onset potassium iodide is added to an aqueous-gelatin solution at amount 0.15-15 g/l. Silver compound is silver ammoniate. Emulsifying is carried out at pBr = 1.6 $$$ 0.1 at the rate of potassium bromide and silver ammoniate addition 5-50 ml/min. After addition termination of the indicated solutions emulsion is kept at 45-55 C and pBr = 1.6 $$$ 0.1 for 30-60 min. The obtained emulsion exhibits flat microcrystals. EFFECT: increased resolution capability, simplified method.
SU3776143/04A 1984-06-20 1984-06-20 Method of bromo-iodo-silver photographic emulsion preparing SU1210581A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU3776143/04A SU1210581A1 (en) 1984-06-20 1984-06-20 Method of bromo-iodo-silver photographic emulsion preparing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU3776143/04A SU1210581A1 (en) 1984-06-20 1984-06-20 Method of bromo-iodo-silver photographic emulsion preparing

Publications (1)

Publication Number Publication Date
SU1210581A1 true SU1210581A1 (en) 1997-01-10

Family

ID=60542345

Family Applications (1)

Application Number Title Priority Date Filing Date
SU3776143/04A SU1210581A1 (en) 1984-06-20 1984-06-20 Method of bromo-iodo-silver photographic emulsion preparing

Country Status (1)

Country Link
SU (1) SU1210581A1 (en)

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