Fluorescent security thermal transfer printing ribbon

Details Fluorescent security thermal transfer printing ribbon Fluorescent security thermal transfer printing ribbon

1997-07-16

1999-08-10

Schwartz, Pamela R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428195, 428201, 428484, 4284884, 428690, 428913, 428914, B41M 526

Patent

active

059356944

ABSTRACT:
Fluorescent security thermal transfer printing ribbons consisting of an elongated backing element having a printing media adhered to one side thereof. The printing media is capable of being transferred to paper, or some other print receiving medium, by conventional thermal transfer printing equipment. The thermally transferred printing media includes an interspersed distribution of fluorescent pigments, resulting in printed security characters and images which are transparent or invisible under broad spectrum light, but which fluoresce, and become visible, when exposed to black light.

REFERENCES:
patent: 4180204 (1979-12-01), Koenig et al.
patent: 4515849 (1985-05-01), Keino et al.
patent: 5568177 (1996-10-01), Talvalkar et al.

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