ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,632, issued on Jan. 27, was assigned to DIC Corp. (Tokyo).
"Aqueous ink composition, printed material, and method of producing printed material" was invented by Ryota Ichikawa (Kitaadachi-gun, Japan), Takahiro Nio (Kitaadachi-gun, Japan) and Keigo Gouda (Kitaadachi-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an aqueous inkjet ink with which sufficient setting properties and image fastness are achieved even in printing on a less-ink-absorbent or non-ink-absorbent recording medium. An aqueous ink composition for use in an inkjet recording method includes a color material, an aqueous medium, a binder resin, and a wax. The bind...