ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,348, issued on March 11, was assigned to SODRA SKOGSAGARNA EKONOMISK FORENING (Vaxjo, Sweden).
"Method for decoloring of a textile material" was invented by Jim Parkas (Varberg, Sweden), Anna Palme (Kallered, Sweden) and Harald Brelid (Gothenburg, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described is a method for decoloring of a textile material, the method includes the steps of: providing a textile material; providing an alkaline solution containing one or more anionic polyelectrolytes; treating the textile material in the alkaline solution during a treatment period; and recovering at least some of the textile material from the alkali...