Method and device for the rejuvenating of a polyester film base and method of drying a processed photographic material.

摘要

A device for rejuvenation a motion picture film, which comprises coating means for coating a rejuvenation layer of an aqueous film-forming polymer dispersion to the rear side of the film (12), and drying means (14) for drying such coated layer, which drying means comprises a wave pipe (16) and a source of microwave energy (32) coupled at one end thereto, film base inlet (23) and outlet (24) ports in said wave pipe and film conveying rollers (17) between said openings, air inlet and outlet (31) openings axially spaced along said wave pipe, blower means (29) for producing a current of forced air through said inlet openings, and heater means for heating said forced air. <IMAGE>