Ink compositions for ink jet printing

Details Ink compositions for ink jet printing Ink compositions for ink jet printing

1994-04-14

1995-02-14

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 22R, C09D 1102

Patent

active

053891333

ABSTRACT:
Disclosed is a process for preparing an aqueous ink composition which comprises adjusting the pH of the ink with phosphorous acid or phosphite salts. Also disclosed are ink compositions prepared by this process. In certain preferred embodiments, the ink compositions can also contain betaine, sulfolane, dimethyl sulfoxide, or N,N'-bis(3-aminopropyl)-1,2-ethylenediamine, as well as mixtures thereof. In other preferred embodiments, the ink composition comprises an organic component selected from the group consisting of sulfolane, dimethyl sulfoxide, and mixtures thereof, and anions selected from the group consisting of phosphite, hypophosphite, phosphate, polyphosphate, sulfate, hexafluorophosphate, glycolate, acetate, ethylenediaminetetraacetate, formate, borate, sulfite, sulfamate, and mixtures thereof.

REFERENCES:
patent: 4177075 (1979-12-01), Mansukhani
patent: 4838940 (1989-06-01), Kan et al.
patent: 4853037 (1989-08-01), Johnson et al.
patent: 4920361 (1990-04-01), Arahara et al.
patent: 5062892 (1991-11-01), Halko
patent: 5106416 (1992-04-01), Moffatt et al.
patent: 5254159 (1993-10-01), Gundlach et al.
patent: 5258064 (1993-11-01), Colt

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