Coating apparatus – Immersion or work-confined pool type – Work-confined pool
Patent
1991-04-15
1992-04-21
Wityshyn, Michael G.
Coating apparatus
Immersion or work-confined pool type
Work-confined pool
118411, 118419, 427356, B05C 502
Patent
active
051057603
ABSTRACT:
An extrusion-type applicator device continuously applying a liquid to a carrier film moving with a predetermined linear velocity and a predetermined running direction includes a head having a bore disposed parallel to the axis of the head for receiving the liquid, a slot connecting the bore with a surface of the head, a back edge portion disposed adjacent to the slot on the upstream side of the slot and having a chamfer whose width is less than or equal to about 50.mu.m but larger than the diameter of each grain of the material of the back edge portion, and a doctor edge portion disposed adjacent to the slot on the downstream side of the slot with respect to the direction, the doctor edge portion having a chamfer with a width of about 2 to 3 .mu.m provided at the upstream edge of the surface of the doctor edge portion. The applicator device can be modified to simultaneously apply a plurality of liquids to a carrier to produce a plurality of films thereon. The modified applicator device includes a second slot disposed between the slot and the chamfer of the back edge portion.
REFERENCES:
patent: 4299186 (1981-11-01), Pipkin et al.
patent: 4424762 (1984-01-01), Tanaka et al.
patent: 4445458 (1984-05-01), O'Brien
patent: 4537801 (1985-08-01), Takeda
patent: 4854262 (1989-08-01), Chino et al.
Shibata Norio
Takahashi Shinsuke
Fuji Photo Film Co. , Ltd.
Wityshyn Michael G.
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