Waterfast infrared scannable inks for ink jet printing

Details Waterfast infrared scannable inks for ink jet printing Waterfast infrared scannable inks for ink jet printing

1996-07-29

1998-03-24

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3127, C09D 1102

Patent

active

057307890

ABSTRACT:
An ink jet ink composition comprises a liquid vehicle, a dye, a hydroxyalkylated polyethyleneimine, and an ammonium salt for enhancement of waterfastness. The ammonium salt preferably comprises less than 1% by weight of the ink composition, and is added to a combination of the dye and ethoxylated polyethyleneimine. The ink jet ink composition increases the waterfastness of the ink to a level greater than 85%.

REFERENCES:
patent: 4267088 (1981-05-01), Kempf
patent: 4659382 (1987-04-01), Kang
patent: 4789400 (1988-12-01), Solodar et al.
patent: 5017224 (1991-05-01), Tomita et al.
patent: 5017644 (1991-05-01), Fukker et al.
patent: 5223028 (1993-06-01), Aulick et al.

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