Extrusion & Post
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Unstable crimp degree of PET fiber
Problem Phenomenon
The crimp degree of PET staple fiber differs greatly between batches, affecting carding and web-forming uniformity.
Cause Analysis
Crimping machine temperature or pressure fluctuates; fiber cooling is uneven, causing inconsistent crimp setting; the drawing process fluctuates.
Solution
Stabilize crimping machine temperature and pressure parameters; optimize fiber cooling conditions for uniform temperature; keep the drawing process stable.
Key Takeaway
PET staple fiber crimp stability is crucial for downstream textile processing.
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