Woven security label

Details Woven security label Woven security label

1997-08-27

2000-05-30

Copenheaver, Blaine

Stock material or miscellaneous articles

Article having latent image or transformation

428913, 428916, 442301, B44F 110

Patent

active

060688955

ABSTRACT:
A woven security label is woven from threads of synthetic fiber, which interweaves a piece of check warp or weft yarn. The check warp or weft yarn comprises one or more pieces of detectable filament containing a small amount of inorganic fluorescent substance. The check warp or weft yarn is substantially colorless in ordinary sunlight, electric light or the like but reversibly changes color under influence of specific UV light.

REFERENCES:
patent: 4921280 (1990-05-01), Jalon
patent: 5770110 (1998-06-01), Schrell et al.
patent: 5824393 (1998-10-01), Nakamura
English translation of abstract for EP 66 854 (West 1.0, Derwent database).
Printout of WPIDS database entry for JP 06-306727 (equivalent to EP 621574) .

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