Security features for paper
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United States of America Patent
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-
Jul 27, 1999
Grant Date -
N/A
app pub date -
Mar 20, 1996
filing date -
Sep 27, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to improvements in security features in paper and in particular to a method of making paper and transparentising selected areas of paper to provide enhanced security features. The invention thus provides a method of making paper comprising the step of depositing fibers (12) onto a support surface (13) to form a porous absorbent sheet (14), applying a transparentising resin to at least portion of said porous sheet and subsequently impregnating the porous sheet with a sizing resin.
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