US Patent Issued to Stora Enso on Sept. 29 for "Multi-ply liner with washed NSSC pulp" (Finnish Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,539, issued on Sept. 29, was assigned to Stora Enso OYJ (Helsinki).

"Multi-ply liner with washed NSSC pulp" was invented by Isto Heiskanen (Imatra, Finland), Jukka Kankkunen (Imatra, Finland), Jukka Lyyra (Jamsa, Finland) and Harri Taipale (Vantaa, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a multi-ply liner for use in food or beverage packaging materials, said multi-ply liner comprising: a first ply, and a second ply, wherein said first ply comprises at least 70 wt % unbleached kraft pulp and less than 30 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, wherein said second ply compris...