Polyester staple fiber (PSF) is kind of polyester fiber made directly from PTA and MEG or PET chips .PSF made from PTA and MEG or PET chips is known as virgin PSF.100% virgin PSF is usually costly than recycled PSF and is also more hygienic .Polyester staple fiber is widely used in spinning, weaving nonwoven. PSF is mainly classified as solid and hollow polyester staple fiber.Hollow PSF can also have some properties like conjugated, siliconized, slick and dry PSF.