Sun Chemical Corporation

Sensient Colors Incorporated

Mihaela Madaras

Ralph Francis Arcurio

Lisa Clapp

Wenbin Hong

Marguerite Debacker

Josie M Rosen

Guy VanOudenhoven

Paul Sacoto

Ralph Arcurio

Peter John Lyon

Cindy Michiels

Guy Vanoudenhoven

Veronica Chambers

The present invention provides a water-based black ink, utilizing biochar as the black pigment. The black inks of the invention contain high bio-renewable carbon content (BRC), preferably 100% BRC. The inks exhibit the physical properties required to perform according to the requirements of rotogravure and flexographic printing.

Black inks based on biochar

Aqueous inkjet ink compositions, methods of preparing the inkjet ink compositions, inkjet ink cartridges containing the aqueous inkjet ink composition, methods of filling a print cartridge with the aqueous inkjet ink composition, and methods of printing an image on a substrate using the inkjet ink composition are disclosed.

Aqueous inkjet ink compositions

A dispersion comprising a pigment, a polymer comprising a carboxyl group, a crosslinking agent capable of undergoing a crosslinking reaction with the carboxyl group, an inhibition agent comprising a tertiary amine, and a liquid carrier, wherein at least one of the mean particle size and the viscosity of the dispersion increases by less than 20% over about three months in sealed storage at ambient temperature, as determined by accelerated shelf life testing.

Self-crosslinking dispersions, and methods for making and using the same

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Ballwin, MO, United States of America

Mihaela Madaras