Heat transfer recording media

Details Heat transfer recording media Heat transfer recording media

1994-11-14

1996-03-05

Fridie, Jr., Willmon

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283109, B42D 1500

Patent

active

054960720

ABSTRACT:
The present invention relates to a heat transfer recording medium in which a substrate has items of information such as an image and characters formed on the surface thereof by heat transfer and a transparent protective layer is provided on at least a part of the surface of the thus recorded information through an adhesive layer, if required, characterized in that the adhesive layer and/or protective layer function to provide security against counterfeiting. Combining information recorded by heat transfer with a function to provide security against counterfeiting, the present invention provides greater security against falsifying or counterfeiting.

REFERENCES:
patent: 3552853 (1971-01-01), Sanders et al.
patent: 4171864 (1979-10-01), Jung et al.
patent: 4971646 (1990-11-01), Schell et al.
patent: 5010243 (1991-04-01), Fukushima et al.
patent: 5267755 (1993-12-01), Yamauchi et al.
patent: 5387013 (1995-02-01), Yamauchi et al.

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