After the filament passes through the heated wall evaporation chamber, it is washed, stretched,crimped, set, and then either packaged in tow or cut into staple.

• 长丝经过蒸发仓内被加热的壁板，再经过清洗、拉伸、卷曲、定型，然后以丝束状卷绕到卷装上或被切成短纤维。