Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Reexamination Certificate
2005-04-05
2005-04-05
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
C162S204000, C162S214000, C162S361000, C162S358100, C162S358300, C100S038000, C100S306000, C100S311000, C100S313000, C100S153000, C100S161000
Reexamination Certificate
active
06875311
ABSTRACT:
A method and an arrangement for manufacturing calendered paper or board particularly in the on-line manufacturing method. In the method, a base web is formed from a mixture of water and pulp supplied from the headbox and the web is dried by removing water over the press section and over the dryer section by heating. The formed web is calendered at least once to modify the surface on at least one of its sides. Before calendering the cross-direction thickness profile of the web is standardized and calendering is carried out by means of a long-nip calender, whereby good surface quality is obtained without losing the bulk or stiffness of the web.
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Koivukunnas Pekka
Lares Matti
Leino Mika
Cohen & Pontani, Lieberman & Pavane
Halpern Mark
Metso Paper Inc.
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