D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 19/84 (2006.01) D21H 23/56 (2006.01) D21H 23/58 (2006.01) D21H 23/70 (2006.01)
Patent
CA 2107277
The invention relates to a method and apparatus for two-side coating of a light base weight printing paper web containing mechanical pulp or recycled fiber. According to the method the first side of a web (5) is coated in a first coating station (1), the first-side coat is dried at least partially in a dryer unit (3), the second side of the web (5) is coated subsequent to the drying of the first side in a second coating station (2), and the second-side coat is dried at least partially in a second dryer unit (4). According to the invention both the first-side coat and the second-side coat are formed by applying a required amount of coating mix onto the perimeter of a soft film-coating roll (22) and subsequently transferring said coat film to the web (5) in a nip (N1) formed between a backing roll (24) and said film-coating roll (22).
Rantanen Rauno
Vikman Kai
Gowling Lafleur Henderson Llp
M-Real Oyj
Metsa-Serla Paperi Ja Kartonki Oy
Metso Oyj
Valmet Paper Machinery Inc.
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