Molding Process
7 조회수
LLDPE film heat sealing problem
문제 현상
Heat seal initiation temperature is high or hot tack strength is low.
원인 분석
LLDPE has a higher melting point than LDPE, and the heat seal window is different; hot tack is related to the grade (comonomer type).
해결 방법
①Adjust the heat seal temperature according to the grade; ②select a heat-sealable grade (such as octene copolymer); ③optimize heat seal pressure and time; ④clean the contaminated film surface first.
핵심 요약
For heat sealing, first check the grade's melting point and comonomer.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!