復(fù)合包裝膜是指由多層薄膜經(jīng)過(guò)印刷復(fù)合等等工藝形成的包裝膜。
按照材質(zhì)分為:鋁塑復(fù)合包裝膜和塑塑復(fù)合包裝膜。
按材料結(jié)構(gòu)分為二層、三層、四層、五層等等,
二層的有:PET/PE,PET/CPP,OPP/CPP,OPP/PE;NY/CPP,NY/PE,PET/VMCPP,OPP/VMCPP;
三層有:PET/NY/PE,PET/NY/CPP,PET/AL/PE,PET/AL/CPP,OPP/AL/PE。PET/VMCPP/PE,OPP/VMPET/PE;
四層有:PET/AL/NY/PE,NY/AL/NY/PE等。