Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing chemical
Patent
1994-09-26
1996-06-11
Vo, Peter
Printed matter
Having revealable concealed information, fraud preventer or...
Utilizing chemical
283114, 283901, 428913, 503204, B42D 1500, B41M 518
Patent
active
055249345
ABSTRACT:
A business record such as a form, tag, label or the like is provided in which different selected colored areas may be activated in a single pass through a printer. In one embodiment, coatings of initially colorless color formers and color developers are coated on selected areas of a substrate surface. The color formers and color developers combine upon exposure to an imaging force, such as heat or pressure, to form different colored visible areas on the sheet. In an alternative embodiment, the coatings of color formers and color developers are self-contained coatings having pressure-rupturable microcapsules containing either the color formers or said color developers.
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Dotson Mark D.
Schwan Joseph V.
Nguyen Khan V.
The Standard Register Company
Vo Peter
LandOfFree
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