RO98870B1 - Procedeu de preparare a unei emulsii fotografice rapide - Google Patents

Procedeu de preparare a unei emulsii fotografice rapide

Info

Publication number
RO98870B1
RO98870B1 RO129491A RO12949187A RO98870B1 RO 98870 B1 RO98870 B1 RO 98870B1 RO 129491 A RO129491 A RO 129491A RO 12949187 A RO12949187 A RO 12949187A RO 98870 B1 RO98870 B1 RO 98870B1
Authority
RO
Romania
Prior art keywords
silver
flocculation
solution
washing
separation
Prior art date
Application number
RO129491A
Other languages
English (en)
Inventor
Maria Aurora Manolache
Maria Bumbac
Original Assignee
COMBINATUL DE îNGRASAMINTE CHIMICE
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 COMBINATUL DE îNGRASAMINTE CHIMICE filed Critical COMBINATUL DE îNGRASAMINTE CHIMICE
Priority to RO129491A priority Critical patent/RO98870B1/ro
Publication of RO98870B1 publication Critical patent/RO98870B1/ro

Links

Landscapes

  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Inventia prezinta un procedeu de obtinere a unei emulsii fotografice rapide, pe baza de halogenura de argint care, prin turnare pe ambele fete ale unui suport de triacetat de celuloza albastru-transparent de 175 niu, realizeaza un film utilizat în radiodiagnosticare mediacla cu radiatii X. Procedeul se realizeaza prin precipitarea iodobromurii de argint în trei trepte si în dublu jet tratând o solutie apoasa de gelatina activa cu o solutie de iodobromura de potasiu în prezenta unor substante care ajuta la cresterea sensibilitatii la radiatii X. Sepaarea fazei solide se face prin flocurare-spalare cu sulfat de magneziu care ajuta la cresterea sensibilitatii la radiatii X. Separarea fazei solide se face prin flocurare-spalare cu sulfat de magneziu, si o solutie de coagulant organic la un pH = 6,1 apoi se realizeaza dispersia granulelor de iodobromura de argint într-o solutie apoasa de gelatina activa la 40 degree C sub agitare continua. Maturizarea chimica se realizeaza în prezenta de sensibilizatori chimici cu saruri de aur, fiosulfat de sodiu dupa care se realizeaza stabilizarea finala. Dupa adaugarea agentilor de finisare, emulsia se toarna pe ambele fete ale unui suport de traicetat de celuloza albastru transparent de 175 niu. Inventia prezinta ca principal avantaj, scurtarea timpului de prelucrare prin procesare automata de 90 s de la uscat la uscat.
RO129491A 1987-08-19 1987-08-19 Procedeu de preparare a unei emulsii fotografice rapide RO98870B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO129491A RO98870B1 (ro) 1987-08-19 1987-08-19 Procedeu de preparare a unei emulsii fotografice rapide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO129491A RO98870B1 (ro) 1987-08-19 1987-08-19 Procedeu de preparare a unei emulsii fotografice rapide

Publications (1)

Publication Number Publication Date
RO98870B1 true RO98870B1 (ro) 1990-04-30

Family

ID=40906966

Family Applications (1)

Application Number Title Priority Date Filing Date
RO129491A RO98870B1 (ro) 1987-08-19 1987-08-19 Procedeu de preparare a unei emulsii fotografice rapide

Country Status (1)

Country Link
RO (1) RO98870B1 (ro)

Similar Documents

Publication Publication Date Title
GB1466285A (en) Colour silver halide photographic processing method
GB1198150A (en) Photographic Dye Developer Process
RO98870B1 (ro) Procedeu de preparare a unei emulsii fotografice rapide
US3717466A (en) Fogged direct positive silver halide element containing a selenium compound sensitizer
GB777181A (en) Improvements in photographic sensitive materials
US3870522A (en) Fogged, direct-positive emulsion containing heterodisperse and irregular composite silver halide grains
US3149970A (en) Production of photographic silver images by physical development
JPS5448544A (en) Image forming method
SU734594A1 (ru) Способ изготовлени высококонтрастных мелкозернистых галогенсеребр ных фототехнических материалов
FI893595A (fi) Foerfarande och anordning foer framstaellning av finkornig blyazid.
US3705033A (en) Process for the production of photographic images
GB1178683A (en) Sensitive Silver Halide Photographic Materials
GB1197536A (en) Improved Photographic Emulsion for the Photosolubilisation Process
US4264724A (en) Exposure of silver halide emulsions during formation
GB751186A (en) Improvements in processes of colour photography and compositions therefor
GB1195838A (en) A Method of Producing Photographic Images
US3961958A (en) Process for fixing photographic material
GB1512135A (en) Colour development processing of silver halide photographic material
JPS57129435A (en) Formation of photographic image
RU2047207C1 (ru) Способ изготовления галогенсеребряной фотографической эмульсии
SU1448919A1 (ru) Способ изготовления бромиодсеребряной фотографической эмульсии
EP0411760B1 (en) Photographic processing
SU989523A1 (ru) Медный борогидридный про витель
SU1352442A1 (ru) Способ обработки серебр ного изображени на галогенсеребр ной фототехнической пленке
SU1051489A1 (ru) Про вл юще-фиксирующий раствор дл обработки малосеребр ных фотографических материалов