AMINMODIFIZIERTE GELATINESCHICHT ZUR VERBESSERUNG DER HAFTUNG FOTOGRAFISCHER ELEMENTE NACH DEM TEMPERN

摘要

An imaging support comprising: a polyester support; an adhesive layer superposed to said support; and on the adhesive layer: an amine modified gelatin subbing layer, the amine modified gelatin having the formula: wherein Gel is a gelatin polypeptide is a carbonyl group from a free carboxyl group in aspartic acid or a glutamic acid moiety in said polypeptide, and G is or wherein each R is independently hydrogen or a primary or secondary alkyl group of one to about four carbon atoms, n is a positive integer having a value of one to about four, and T is a hydrogen or said modified gelatin being further characterized by having from 1% to about 40% of the free carboxyl groups in aspartic and glutamic acid moieties in said polypeptide being substituted with G-groups; wherein said support has been annealed at a temperature that is 50 to 5 DEG C less than the glass transition temperature of the support for at least 6 hours.