Method for the production of a fibrous web

Details Method for the production of a fibrous web Method for the production of a fibrous web

2004-11-03

2008-10-14

Halpern, Mark (Department: 1791)

Paper making and fiber liberation

Processes and products

With measuring, inspecting and/or testing

C162S190000, C162S258000, C162S263000, C162SDIG011, C700S127000, C700S128000, C700S129000

Reexamination Certificate

active

07435314

ABSTRACT:
In a method for the production of a fibrous web, especially a paper or cardboard web, an automatic ash control system and an automatic retention control system for the reduction or suppression of an interactive build-up of the two controls are linked via a model for the dependence between the filler addition and the retention agent consumption. A computer assisted quality control system is also cited.

REFERENCES:
patent: 6319362 (2001-11-01), Huhtelin et al.
patent: 2004/072367 (2004-08-01), None
Dr. Micheal Schwarz, “Automation”, Published in papierausösterreich, (paper of Austria) Oct. 2003, p. 16-18.

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