Installation for coating the surface of a web with a paste

Details Installation for coating the surface of a web with a paste Installation for coating the surface of a web with a paste

1998-08-12

1999-10-12

Bareford, Katherine A.

Coating processes

Direct application of electrical, magnetic, wave, or...

Magnetic field or force utilized

427282, 427356, 101116, 101120, 492 8, 492 56, 118126, 118213, 118406, B05D 126, B41L 1304, B05C 110

Patent

active

059652209

ABSTRACT:
An installation for coating the surface of a web of material with a paste. A printing screen has a doctor blade lying within for applying the print paste through holes in the printing screen onto the web. A counter roll cooperates with an electromagnet to producing a controllable level of contact pressure of the doctor blade against the printing screen. The roll body of the counter roll is provided with a coating that has piezoelectric elements and is divided into sections specific to the width, each section being individually controllable. This permits dynamic control of the application of paste over the width of the web.

REFERENCES:
patent: 4290353 (1981-09-01), Pav et al.
patent: 5151132 (1992-09-01), Zimmer

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