Method and device for surface treatment of film webs

Details Method and device for surface treatment of film webs Method and device for surface treatment of film webs

1985-04-24

1986-10-07

Pianalto, Bernard D.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

4272551, B05B 306

Patent

active

046159061

ABSTRACT:
A method for surface treatment of a substrate made of thermoplastic plastic is described, wherein the substrate is guided into the zone of a corona discharge flowing between two electrodes charged with high electrical voltage. The characterizing feature of the method comprises subjecting at least one surface of the substrate, simultaneously with corona treatment, to reactive ionized substances from the the liquid phase in the corona discharge zone.
In addition, a device for working the method recited hereinabove is described, comprising a support surface and a high-voltage electrode, said electrode being connected to a high-voltage generator via a high-voltage cable. The characterizing features of the device comprise the high-voltage electrode being a shaped electrode open toward the supporting surface, which is filled with a liquid.

REFERENCES:
patent: 3057792 (1962-10-01), Frohlich
patent: 3142630 (1964-07-01), Antokal et al.
patent: 3274089 (1966-09-01), Wolinski
patent: 3296011 (1967-01-01), McBride et al.
patent: 3959567 (1976-05-01), Bradley
patent: 4239973 (1980-12-01), Kolbe et al.

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