Precalendering method, finishing method and apparatus for...

Details Precalendering method, finishing method and apparatus for... Precalendering method, finishing method and apparatus for...

2007-01-30

2007-01-30

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Processes and products

With coating after drying

C162S205000, C162S206000, C162S265000, C162S361000, C118S044000, C118S060000, C118S068000, C118S072000, C118S226000, C118S227000, C427S211000, C427S317000, C427S326000

Reexamination Certificate

active

10312147

ABSTRACT:
A paper or paperboard web (W) is precalendered. A web that has undergone earlier dewatering stages is calendered to attain a suitable surface for the coating process. The web is calendered (C) one-sidedly in such a manner that the absorption level of the second side (W2) of the web entering the calendering, which is higher than the absorption level of the first side (W1), is reduced in the calendering nearly to the same level or at least to the same level with the first side (W1).

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International Search Report issued in International Patent Application No. PCT/FI01/00594.
International Preliminary Examination Report issued in International Patent Application No. PCT/FI01/00594.

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