<p>Inks used in ink-jet printing comprise a vehicle and a dye. The dye is typically an anionic dye, associated with undesirable cations such as sodium or potassium cations. Several properties of such inks are improved by replacing at least about one-fourth of such cations on the anionic dye with tetramethylammonium or lithium cations.</p>
申请公布号
EP0259088(A2)
申请公布日期
1988.03.09
申请号
EP19870307503
申请日期
1987.08.25
申请人
HEWLETT-PACKARD COMPANY
发明人
ASKELAND, RONALD A.;KAPPELE, WILLIAM D.;STOFFEL, JOHN L.;PAWLOWSKI, NORMAN E.