Coextrusion multilayer ma CD mafilimu ndi matumba
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Multilayer coextrusion film
Pofuna kukulitsa moyo wa alumali wa chakudya, mankhwala ndi zipangizo zina, zinthu zambiri zopangira zakudya ndi mankhwala tsopano zimagwiritsa ntchito mafilimu opangidwa ndi multilayer co-extrusion.Pakalipano, pali zigawo ziwiri, zitatu, zisanu, zisanu ndi ziwiri, zisanu ndi zinayi, ngakhale khumi ndi chimodzi za zipangizo zolembera.Filimu yamitundu yambiri ya co-extrusion ndi filimu yomwe imatulutsa zinthu zosiyanasiyana zapulasitiki kuchokera ku imfa imodzi panthawi imodzi kudzera muzitsulo zambiri, zomwe zingapereke kusewera kwa ubwino wa zipangizo zosiyanasiyana.
Mafilimu ophatikizika amitundu yambiri amapangidwa makamaka ndi polyolefin.Pakalipano, mapangidwe omwe amagwiritsidwa ntchito kwambiri ndi awa: polyethylene / polyethylene, polyethylene / vinyl acetate copolymer / polypropylene, LDPE / zomatira / EVOH / zomatira / LDPE, LDPE / zomatira / EVOH / EVOH / zomatira / LDPE.Makulidwe a aliyense wosanjikiza akhoza kusinthidwa ndi ndondomeko extrusion.Mwa kusintha makulidwe a chotchinga chotchinga ndi kugwiritsa ntchito zinthu zosiyanasiyana zotchinga, filimuyo yokhala ndi zotchinga zosiyanasiyana imatha kupangidwa mosinthika, komanso zinthu zosindikizira zotentha zimathanso kusinthidwa ndikugawidwa kuti zikwaniritse zosowa za ma CD osiyanasiyana.Ma multilayer ndi multifunction co-extrusion pawiri ndiye njira yayikulu yopangira zida zamakanema zonyamula mtsogolo.