Extrusion & Post
5 مشاهدة
Uneven dyeing of PET fiber
ظاهرة المشكلة
After PET fiber dyeing, color flowers and color differences appear, and color fastness is poor.
تحليل الأسباب
Fiber crystallinity and orientation degree are uneven, causing dye uptake differences; spinning cooling conditions fluctuate; draw ratios are inconsistent.
الحل
Stabilize spinning process parameters (temperature, cooling air, speed); control draw ratio consistency; select color masterbatch with good dispersibility.
الخلاصة الأساسية
PET fiber dyeing uniformity depends on the uniformity of the fiber microstructure.
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