Process for the pretreatment of photographic substrates

Details Process for the pretreatment of photographic substrates Process for the pretreatment of photographic substrates

1982-08-20

1984-05-29

Hoffman, James R.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 40, C03C 174, B05D 704, B05D 306

Patent

active

044514972

ABSTRACT:
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.

REFERENCES:
patent: 3531314 (1970-09-01), Kerr et al.
patent: 3761299 (1973-09-01), Lidel

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