Antifalsification paper

Details Antifalsification paper Antifalsification paper

1995-07-13

1998-07-21

Davis, Jenna

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428131, 428134, 428195, 428916, 283 94, 162104, 162105, 162109, 162124, B42D 1500

Patent

active

057832757

ABSTRACT:
An antifalsification paper is described having an embedded safeguarding thread which is embedded in the paper so as to be freely accessible in some areas. The safeguarding thread has a width greater than 2 mm. The antifalsification paper comprises at least two paper layers produced on separate paper machines. The safeguarding thread is embedded in the first paper layer which has openings or recesses in its surface through which the thread is partly accessible on both sides. This first paper layer is covered with at least one second paper layer and firmly connected therewith, the second paper layer having a thickness of 10 to 50%, preferably 20%, of the total thickness of the antifalsification paper. The use of particularly wide safeguarding threads and the resulting possibility of equipping the threads with certain optical effects can improve the resistance to forgery of the antifalsification paper provided therewith.

REFERENCES:
patent: 4462867 (1984-07-01), Fuller
patent: 4942093 (1990-07-01), Melling et al.
patent: 5093184 (1992-03-01), Edwards

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