Molding Process
6 مشاهدة
Poor liner adhesion of PET bottle caps
ظاهرة المشكلة
The liner inside the aluminum or plastic cap of PET bottles seals poorly with the bottle mouth, causing leakage.
تحليل الأسباب
The bottle mouth sealing surface is uneven or has flash; liner material has poor adhesion to PET; capping torque is insufficient or excessive.
الحل
Improve bottle mouth sealing surface flatness; select liner materials with good compatibility with PET (EVA, etc.); control capping torque.
الخلاصة الأساسية
PET bottle sealing involves dual factors of bottle mouth precision and liner matching.
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