US Patent Issued to Heidelberger Druckmaschinen on March 3 for "Aqueous inkjet ink for non-absorbent printing substrates and printing process" (German Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,592, issued on March 3, was assigned to Heidelberger Druckmaschinen AG (Heidelberg, Germany).

"Aqueous inkjet ink for non-absorbent printing substrates and printing process" was invented by Johannes Hanle (Wiesloch, Germany), Florian Hinderer (Esslingen, Germany), Ina Rianasari (Heidelberg, Germany), Susanne Ruppel (Darmstadt, Germany) and Thomas Paul (Heidelberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inkjet ink includes pigment, dispersing agent, fixing agent, binder and water. The binder is selected from polyurethanes of a low acid value, the dispersing agent has a low acid value, and the fixing agent is a multivalent calcium s...