Process for producing a support for photographic photosensitive materials

摘要

A process for producing a support for photographic photosensitive materials consisting essentially of a magnetic recording layer, an intermediate layer and a cellulose ester layer laminated in this order which comprises casting a dope for the magnetic recording layer, a dope for the intermediate layer and a dope for the cellulose ester layer, said dope for the intermediate layer having a smaller polymer/solvent ratio than the dope for the magnetic recording layer, and said dope for the intermediate layer casting so as to contact the dope for the magnetic recording layer. Magnetic properties of the support are improved.