ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,546, issued on April 29, was assigned to CANON PRODUCTION PRINTING HOLDING B.V. (Venlo, Netherlands).
"Pre-treatment liquid for use in ink jet printing" was invented by Jeroen A. Schell (Venlo, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aqueous pre-treatment liquid for use in ink jet printing includes water and magnesium-disulfamate. Such pre-treatment composition is non-yellowing and crystal-free and shows good jetting properties. These properties are retained even when a solid co-solvent is added to the composition for anti-curl improvement, thereby enabling to provide non-yellowing pre-treatment liquids with good jetting propert...