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。