Thermal paper with security features

Details Thermal paper with security features Thermal paper with security features

1997-08-27

1999-03-16

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Plural colors or plural diverse systems

427152, 427288, 503206, B41M 530

Patent

active

058830430

ABSTRACT:
A thermal paper with an image derived from a water-based security ink has more than one means of security. A variable light absorbing and/or transmitting pigment or dye in the ink is a first security and a water repelling agent in the ink is a second security. A pseudo-watermark from the coloration of the ink under ambient conditions is a third security. Visible images can be generated from the printed ink upon exposure to UV or infrared light. Methods of preparing the thermal paper comprise printing the security ink on thermal paper with only one thermosensitive coating on the surface opposite the thermosensitive coating.

REFERENCES:
patent: 3429825 (1969-02-01), Voedisch
patent: 3596275 (1971-07-01), Sweet
patent: 3663278 (1972-05-01), Blose et al.
patent: 4150997 (1979-04-01), Hayes
patent: 4153593 (1979-05-01), Zabiak et al.
patent: 4269627 (1981-05-01), Hwang
patent: 4315643 (1982-02-01), Tokunaga et al.
patent: 4328332 (1982-05-01), Hayes et al.
patent: 4370370 (1983-01-01), Iwata et al.
patent: 4388362 (1983-06-01), Iwata et al.
patent: 4403224 (1983-09-01), Wirnowski
patent: 4424245 (1984-01-01), Maruta et al.
patent: 4444819 (1984-04-01), Maruta et al.
patent: 4507669 (1985-03-01), Sakamoto et al.
patent: 4551738 (1985-11-01), Maruta et al.
patent: 4682194 (1987-07-01), Usami et al.
patent: 4687701 (1987-08-01), Knirsch et al.
patent: 4722921 (1988-02-01), Kiritani et al.
patent: 4742043 (1988-05-01), Tanaka et al.
patent: 4783493 (1988-11-01), Motegi et al.
patent: 4942150 (1990-07-01), Usami et al.
patent: 5106998 (1992-04-01), Tanaka et al.
patent: 5155230 (1992-10-01), Hibino et al.
patent: 5177218 (1993-01-01), Fischer et al.
patent: 5206395 (1993-04-01), Fischer et al.
patent: 5240781 (1993-08-01), Obata et al.
patent: 5266447 (1993-11-01), Takahashi et al.
patent: 5348348 (1994-09-01), Hanada et al.
patent: 5368334 (1994-11-01), Christy et al.
patent: 5384077 (1995-01-01), Knowles
patent: 5405958 (1995-04-01), VanGemert
patent: 5407885 (1995-04-01), Fischer et al.
patent: 5426143 (1995-06-01), de Wit et al.
patent: 5429774 (1995-07-01), Kumar
patent: 5446151 (1995-08-01), Rickwood et al.
patent: 5468581 (1995-11-01), Coe et al.
patent: 5480482 (1996-01-01), Novinson
patent: 5500040 (1996-03-01), Fujinami
Patent Abstracts of Japan, vol. 012, No. 300 (P-745), 16 Aug. 1988 & JP 63 074053 A (Mitsubishi Electric Corp), 4 Apr. 1988.

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