MANUFACTURING PROCESS OF POLYESTER IMITATION SILK YARN

摘要

In melt spinning of polyethylene terephthalate thermoplastic resin for making silk-like polyester fiber, the spinneret is arranged in a way that the size of cross section of orifices that differs is divided into 4-12 groups and satisfies the following condition of (I) [D: denier of multifilament, H; number of filament strands in a same group which has same monodenier, d; monodenier of one strand m; mth serial number among n group, n; different serial number of monodenier, Hm; number of strands in mth group, dm; monodenier of mth group .