WILMINGTON, Del.--The third wave of polyester price hikes this year has hit, as DuPont said Tuesday it will increase prices of its Dacron polyester filament products by 10 to 15 percent, effective July 29. The price hike will affect Dacron polyester filament partially oriented yarn; Softec, a polyester fiber generally used in warpknit fabrics that are face-finished; Dacron microfibers available on the world market, and the firm's patented Micromattique polyester yarns. The increase will cover yarns used in apparel, home furnishings, upholstery and industrial markets. Officials at Wellman and Hoechst Celanese, the two other leading U.S. producers of polyester fiber, said they were studying the situation. "Dramatic growth in worldwide polyester demand in all applications, most notably flexible and rigid packaging systems such as soda bottles, is creating ingredient shortages and driving raw-material costs up," said Richard Angiullo, vice president and general manager, DuPont Dacron. The Dacron filament increase marks DuPont's third price hike for polyester this year. On Feb. 27, DuPont upped prices on Dacron filament by 5 to 8 percent. Then, on May 27, DuPont raised Dacron staple prices 10 to 14 percent.
A Stella McCartney sketch of a custom dress made from protein-based silk in partnership with biotech lab Bolt Threads. The dress will be displayed at The Museum of Modern Art's upcoming design exhibition, "Items: Is Fashion Modern?"