Thin printing paper and a process for manufacturing said paper
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Sep 12, 1995
filing date -
Jan 12, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a thin printing paper with a weight per unit area in the range below 49 g/m.sup.2 and which contains wood and which is provided with surface pigmentation and which incorporates a mixture of a swellable coating silicate (sodium bentonite) and, for the remainder, conventional coating pigments as the pigment and which, in addition, contains only bonding agent that is a natural organic bonding agent, essentially starch. Even if only lightly calendered, the paper is equally well suited for rotogravure printing and for rotary offset printing. It is preferred that the paper also contain a proportion of processed fibres obtained from old-paper.
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