Process for the pretreatment of photographic substrates

摘要

In a process for the pretreatment of photographic substrates in order to improve adhesion during subsequent coating with photographic emulsions, the corona discharge is carried out under a reduced pressure in order to treat the substrate, resulting in an improvement in the adhesion and wettability which lasts over a long period as well as a reduction in the residual charges generated or left on the substrate by the corona discharge.