Low glycol inks for plain paper printing

Details Low glycol inks for plain paper printing Low glycol inks for plain paper printing

1987-10-30

1989-08-01

Yarbrough, Amelia Burgess

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20, C09D 1102

Patent

active

048530379

ABSTRACT:
An ink composition for printing on plain paper and other media using a thermal ink-jet printer is provided. The ink composition comprises at least one member selected from the group consisting of ethylene glycol and diethylene glycol, present in an amount ranging from about 5 to 10 wt %; dye, ranging from about 1 to 4 wt %; and the balance water. A biocide ranging from about 0.01 to 0.3 wt % and/or a buffering agent ranging in concentration from about 0.05 to 0.5 wt % may also be included.
The ink compositions of the invention permit printing on a large variety of plain papers, including bonds, photocopy paper and laser jet paper. These compositions are an improvement over other ink compositions and permit both high quality and letter quality printing to be achieved.

REFERENCES:
patent: 4239543 (1980-12-01), Beasley
patent: 4285727 (1981-08-01), Uehara et al.
patent: 4299630 (1981-11-01), Hwang
patent: 4724001 (1988-02-01), Ohta et al.

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