75D polyester covered with 40D spandex,popularly used by socks factory for making fashion cotton socks with high quality and good price.4075 Polyester Single Covered Yarn with stable quality made by creora or lycra or qianxi spandex by single covering mac
100% Polyester FDY yarn be made by special manufacturing technique. There have 37 island in each filament. The fabric be made by this sea island yarn can be reached 0.05Denier of each filament after alkali treatment.