WATERFAST PENETRATING THERMAL INK JET INKS
Original Publication Date: 1996-Jun-30
Included in the Prior Art Database: 2004-Apr-07
Xerox Disclosure Journal
Disclosed are waterfast penetrating Thermal Ink Jet (TI0 inks for use in Thermal Ink Jet printing applications. The combination of a waterfast package (N-BAPED, NH40H, H3P03, reactive and direct dyes) and facile paper penetrating glycol monomethyl ethers provides a superior full color ink jet. Prints on "plain" office papers demonstrate vibrant color, minimal intercolor bleed, well controlled toward image cool curl and an extremely high degree of waterfastness. Excellent recoverability with minimal misting was demonstrated in Hewlett Packard 500C hardware. Additionally, solubilizer aids such as, sulfolane and betaine, are useful in achieving optimal success of the color set. A particularly preferred betaine is (CH,), N + -CH2-CH2-C02 - .