US 7,320,727 B2
Multi-viscosity printer ink
Jeng-Dung Jou, Irvine, Calif. (US); Dennis R. White, Fountain Valley, Calif. (US); and Gordon B. Barrus, San Juan Capistrano, Calif. (US)
Assigned to Printronix, Inc., Irvine, Calif. (US)
Filed on Feb. 11, 2005, as Appl. No. 11/56,963.
Application 11/056963 is a continuation in part of application No. 10/316784, filed on Dec. 11, 2002, abandoned.
Claims priority of provisional application 60/411959, filed on Sep. 19, 2002.
Prior Publication US 2005/0191424 A1, Sep. 01, 2005
Int. Cl. C09D 11/00 (2006.01)
U.S. Cl. 106—31.13  [106/31.27; 106/31.6] 19 Claims
OG exemplary drawing
 
1. A printing ink for use in multiple temperatures comprising:
a first mono-viscosity ink having a first viscosity at a pre-determined temperature; and
a second mono-viscosity ink having a second viscosity at the pre-determined temperature, wherein the first and second viscosities are different, and wherein the first viscosity is approximately 1600 cps or higher at room temperature and the second viscosity is approximately 750 cps or lower at room temperature.