Apparatus for coating a substrate with a substance

Details Apparatus for coating a substrate with a substance Apparatus for coating a substrate with a substance

1992-12-09

1994-11-01

Simmons, David A.

Coating apparatus

With vacuum or fluid pressure chamber

118213, 118253, 118406, 118419, B05C 502

Patent

active

053604814

ABSTRACT:
In the case of an apparatus for coating a substrate with a substance, in particular a film with an adhesive, the substance is applied by means of a feeding head (4) through perforations (5) of a template (2) to the substrate in interaction with a backing roll (3) or the like within a coating nip (8). In this arrangement, the backing roll (3) has a screening cover (7) with holes (12). A radially aligned suction stream is generated in the backing roll in a region in and/or after the coating nip (8).

REFERENCES:
patent: 4341580 (1982-07-01), Ahmed et al.
patent: 4761309 (1988-08-01), Embry
patent: 4791879 (1988-12-01), Eklund et al.
patent: 5094886 (1992-03-01), Bogardy

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