Extrusion & Post
4 조회수
Ridges in PET film winding
문제 현상
Local protrusions (ridges) appear on the end face after PET film winding, affecting slitting and use.
원인 분석
Local film thickness is too thick, forming ridges; winding tension is uneven; the film slips on the roller surface.
해결 방법
Improve transverse thickness uniformity (automatic die lip control); optimize the winding tension curve; use nip rollers to improve winding flatness.
핵심 요약
PET film ridges are a comprehensive manifestation of uneven thickness and poor winding.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!