Extrusion & Post
6 مشاهدة
LDPE Film Blocking
ظاهرة المشكلة
Two layers of the film roll stick together, bag opening is difficult, and there are white marks when torn apart.
تحليل الأسباب
Insufficient slip agent in LDPE film or insufficient blooming; large winding tension, high film temperature and high storage temperature aggravate blocking.
الحل
①Increase antiblock agent/slip agent; ②reduce winding tension; ③cool fully before winding; ④control warehouse temperature.
الخلاصة الأساسية
Blocking = joint treatment of additive + tension + temperature.
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