Hollow conjugated polyester staple fiber 1.Grade : Reg.AAA 2.Denier: 3D,7D,15D 3.Cut lenght :64MM 4.Color :SD RW Hollow ... conjugated polyester staple fiber1.Specification : PSF HCS, D7, 64mm, super white colorRate123Material 30% vigin(pet chip)+70%recycled ... (pet flakes)Crimp pc/25mm5.8+,- 3Crimp rate %15+,-5Hollowness %32Tenacity cn/dtex3.28Stick fiber mg/100g ...