US Patent 11116337 Powerband with sheen

A pillowcase includes a top panel and an opposite bottom panel. The top panel has three sides that are joined with three sides of the bottom panel such that inner surfaces of the top and bottom panels that face one another define a cavity configured for disposal of a pillow. Fourth sides of the top and bottom panels are not joined with one another and define an opening that is in communication with the cavity. A power band extends across the opening. The power band includes a sheen.