Pre-opening filaments and adding steam at 80-130°C with 3-7% moisture improves heating uniformity and prevents breakage and fluff.
Labyrinth sealing and thermal control cut steam leakage, limit heat deformation, and prevent fuzz and breakage in continuous acryl fiber treatment.
Short-zone sensing and micro-pivot correction keep yarn heat-treatment conveyor belts aligned while reducing snagging and seal-head stress.
Front-positioned yarn openings and replaceable thread guide tubes improve safe threading, sealing reliability, and maintenance access.