Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Patent
1990-01-08
1992-04-14
Beck, Shrive
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
118410, B05D 312
Patent
active
051046970
ABSTRACT:
The invention concerns a blade coater and a method for coating a web backed by a rotatable backing roll. The blade coater unit includes a support structure, a feeder mounted to the support structure and capable of feeding the coating mix onto the web when brought close to the web in running conditions, and a smoothing device arranged to the immediate vicinity of the web for the application of the fed coating mix. The blade coater unit is essentially placed below the backing roll, the smoothing device is a flexible blade having a tip inclination angle .alpha. less than 20.degree., and the feeder has a narrow exit opening arranged to the stem of the flexible blade without any essential steps in order to facilitate a fast, laminar flow of the coating mix. The approach in accordance with the invention achieves a coat of high quality.
REFERENCES:
patent: 4250211 (1981-02-01), Damrau et al.
patent: 4452833 (1984-06-01), Holt
patent: 4791879 (1988-12-01), Eklund et al.
patent: 4869933 (1989-09-01), Sollinger et al.
Eskelinen Juhani
Heikkinen Jukka
Koivukunnas Pekka
Mannio Aaron
Bashore Alain
Beck Shrive
Valmet Paper Machinery Inc.
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