Patent Number: 6,251,175

Title: Jet ink composition

Abstract: The present invention provides a jet ink composition and a method of jet printing onto non-porous substrates such as glass, metal, ceramics, and plastics images which have improved adhesion. The jet ink composition, which has short dry times, comprises an organic solvent, colorant, and a hydroxyaromatic resin with its hydroxyaromatic units being linked by a linkage other than alkylene ether linkage. The hydroxyaromatic units of the hydroxyaromatic resin are linked by, for example, an alkylene linkage. An example of a suitable hydroxyaromatic unit is a phenol. An example of the organic solvent is ethanol. The jet ink composition provides short dry times on non-porous substrates. In some embodiments of the ink composition, the image adhesion can be further improved by the use of an adhesion promoter such as a silane, a dendrimer, or a combination thereof.

Inventors: Zhu; Linfang (Naperville, IL), Siddiqui; Mohammed (Carol Stream, IL)

Assignee: Marconi Data Systems Inc.

International Classification: C09D 11/00 (20060101); C09D 011/00 ()

Expiration Date: 06/26/2018