Extrusion & Post
10 조회수
EVOH film printing adhesion is poor
문제 현상
After EVOH film printing, ink adhesion
원인 분석
EVOH surface polarity poorly compatible with ink; corona treatment effect decays quickly; ink system does not match EVOH
해결 방법
1) Print immediately after corona treatment within 24h; 2) Use EVOH-specific ink; 3) Increase corona power to 15-20kW/m² to ensure surface tension >42mN/m; 4) Flame treatment to assist surface polarization
핵심 요약
Poor printing adhesion is caused by insufficient surface polarity; corona treatment and special ink are key
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!