Features: 100% Trilobal Polyester -- High sheen for attractive embroidery designs Strength -- Much stronger than rayon; fewer thread breaks and improved production efficiencies Colorfastness -- Withstands color loss or color change when exposed to chlorine; stands up to cleaning and laundering; more resistant to UV exposure than rayon Controlled elongation (stretch) -- Sews great; readily replaces rayon embroidery threads; outperforms other polyester threads Excellent wet strength -- Does not weaken in garment washdown/stone- -wash applications Abrasion resistant -- Very effective for rugged end uses Packaging -- Available on a new 5000-meter tapered cone specifically designed for embroidery; taper improves uptake and rimmed base prevents underpinning; also available on 1000-meter spo Dunhuang brand embroidery thread is a 100% viscose filament rayon embroidery thread that provides the best-possible luster and a soft feel. It is designed to provide exceptional sewability and a highly lustrous pattern appearance Two types of embroidery threads dominate the machine embroidery market -- polyester and rayon. Both products are continuous filaments and are noted for their high luster and vivid color. Embroidery applications may call for a mercerized cotton or a spun polyester thread. The choice of thread is dependent on end use and the aesthetic requirements of an embroidery design.