Extrusion & Post
4 조회수
Poor Printing Adhesion of LDPE Film
문제 현상
Printing ink adhesion is poor and ink falls off.
원인 분석
LDPE surface energy is low and slip agent blooming further reduces surface energy; corona treatment is insufficient or the aging after treatment is too long.
해결 방법
①Strengthen corona treatment and test dyne value; ②print promptly after treatment; ③evaluate slip agent blooming; ④primer treatment if necessary.
핵심 요약
Printing adhesion = dyne value + aging.
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