Method of producing a coated fibrous web

Details Method of producing a coated fibrous web Method of producing a coated fibrous web

2007-07-24

2007-07-24

Kiliman, Leszek (Department: 1773)

Stock material or miscellaneous articles

Composite

Of carbohydrate

C428S532000, C428S536000

Reexamination Certificate

active

10478744

ABSTRACT:
The present invention concerns a method of producing a calendered, coated fibrous web, according to which method a fibrous web is coated with a coating colour containing a coating pigment, and the coated fibrous web is calendered. According to the invention, at least 1%, preferably 10 to 100% of the weight of the pigment comprises calcium oxalate, and calendering the coated web by online calendering. The properties of the calcium oxalate pigment are so advantageous for calendering that it is possible to obtain a reasonably high gloss already with a machine calender (online calendering), which will eliminate need for a separate offline calender in the production line of matt surface papers.

REFERENCES:
patent: 6022448 (2000-02-01), Eriksson et al.
patent: 0 942 099 (1999-09-01), None
patent: 0942099 (1999-09-01), None

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