Ngarep > Kabar > Warta Industri

Apa kahanan pangolahan kanggo film matting?

2023-11-24

Kanggo entuk permukaan kasar sing seragam, yaiku, permukaan matte, kekandelan permukaan matte kudu dijamin. Nilai kekandelan minimal sing diijini raket banget karo struktur die, keseragaman distribusi kekandelan saka bagean aliran cair ing die, lan compounding Gamelan saka negara aliran materi multi-lapisan. Tingkat nemtokake keseragaman distribusi ketebalan bahan matting. 

Kanggo mesthekake yen lapisan matte rampung nutupi permukaan BOPP, kekandelan lapisan permukaan matte dianjurake kaya ing ngisor iki:


1. Nalika kekandelan film total luwih saka 15 μm, kekandelan lapisan lumahing umume 2.3 ~ 2.6 μm; nalika kekandelan film total 12 ~ 15 μm, kekandelan lapisan permukaan ≥ 2 μm.

2. Lumahing matte saka film matte siji-sisi kudu diselehake ing lumahing piso online tinimbang lumahing rol chilling. Suhu roller cooling lan tank banyu bisa luwih dhuwur, kayata udakara 30 ° C.

3. Filter ekstrusi nggunakake 80 nganti 100 molybdenum, lan suhu ekstrusi rada luwih dhuwur tinimbang homopolimer PP umum kanthi 5 nganti 15 ° C. Contone, bagean dipakani 210 ℃ lan bagean liyane 245 ℃.

4. Rasio regangan longitudinal kira-kira 4.8: 1, lan suhu regangan longitudinal padha karo kopolimer acak minangka lapisan permukaan, kayata zona peregangan 125 ℃ ±

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