Waterfast security inks

Details Waterfast security inks Waterfast security inks

1994-08-23

1996-03-12

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 22B, C09D 1102

Patent

active

054982839

ABSTRACT:
An ink jet ink composition comprises a security component, a liquid vehicle, a dye, and an N-hydroxyalkyl imine substituted at about 80% of the available nitrogens. The security component in this ink jet composition causes the ink to maintain color when subjected to bleach to prevent alteration of a printed document, and can be used in ink jet printers.

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patent: 4659382 (1987-04-01), Kang
patent: 4698123 (1987-10-01), Link et al.
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patent: 4789400 (1988-12-01), Solodar et al.
patent: 5017224 (1991-05-01), Tomita et al.
patent: 5017644 (1991-05-01), Fuller et al.
patent: 5019164 (1991-05-01), Tomita et al.
patent: 5223028 (1993-06-01), Aulick et al.
patent: 5304587 (1994-04-01), Oswald et al.

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