Abstract: The invention relates to a process for regulating the porosity and printing properties of paper, in particular uncoated wood-containing paper such as SC-paper, wherein a sufficient quantity of colloidal PCC having a BET surface area of 10-100 m2/g is used as a filter in the paper to achieve a desired porosity of the paper; as well as paper containing colloidal PCC as filler, and a pigment mixture suitable for paper manufacture and containing colloidal PCC.
Type:
Grant
Filed:
May 27, 1999
Date of Patent:
May 3, 2005
Assignee:
J. M. Huber Denmark ApS
Inventors:
Klaus Akilles Lunden, Ib Attrup, Jens Toftelund Madsen
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