ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,955, issued on June 10, was assigned to Dow Global Technologies LLC (Midland, Mich.).
"One step dyeing process of a polyester/natural fiber blended fabric" was invented by Sandeep Nikam (Juinagar, India), Siddhartha Ghosal (Juinagar, India) and Amit Barun (Mumbai, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "The current invention provides methods provides a novel process to dye polyester/natural fiber blends in an all in one step dyeing process. This all in one step dyeing process is enabled by pre-treatment of the fabric using one or more synthetic cationizing agents. The all in one dyeing is then able to be carried out at a lower temperatu...