EP 0282171 A2 19880914 - Improved imaging surfaces.
Title (en)
Improved imaging surfaces.
Title (de)
Bildaufzeichnungsoberflächen.
Title (fr)
Surfaces pour l'enregistrement d'images.
Publication
Application
Priority
US 2348687 A 19870309
Abstract (en)
A photographic element comprising at least one silver halide photographic emulsion in a hydrophilic colloidal binder on a substrate and a surface matting layer over said at least one emulsion, said matting agent layer comprising a binder having at least two different types of non-developmentally disolvable particles therein, one type of particle comprising a matting agent having an average particle size of between 1 and 10 microns in a coating weight of between 0.015 and 0.15 g/m<2>, and the second type of particle comprising buoying particles having an average particle size of between 0.20 and 0.75 microns in a coating weight of between 0.2 and 0.7 g/m<2>. The combinations of particles having different sizes are used to improve drawdown, reduce the starry night effect, and maintain the sensitometric quality of photographic film materials.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G03C 1/95 (2013.01)
Designated contracting state (EPC)
BE CH DE GB IT LI NL
DOCDB simple family (publication)
EP 0282171 A2 19880914; EP 0282171 A3 19890719; JP S63236027 A 19880930
DOCDB simple family (application)
EP 88301203 A 19880212; JP 5473188 A 19880308