B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
117/6
B41M 3/14 (2006.01) B41M 3/10 (2006.01) B42D 15/00 (2006.01) D21H 21/48 (2006.01)
Patent
CA 1205688
ABSTRACT IMPROVEMENTS IN SECURITY PAPER AND THE MANUFACTURE THEREOF The invention concerns security paper in which paper is printed with a security ink including a security agent to a designed representation for detection by a short or long wave ultra-violet light source. The paper is provided with a specially formulated dense opaque coating which obscures the security representation. The coating provides a surface for printing by conventional techniques whilst the coating does not interfere with the desired detection of the phosphorescent or fluorescent security agent. The coating is applied as a slip and includes china clay in a binder having in an exemplary composition an acrylic resin with dispersant and selected wetting and keying agents.
430642
Clark John K.
Gilmour Derek H.
Coated Papers Limited
Stewart & Kolash Ltd
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