Polypropylene cast film (CPP) isetyenziswa kakhulu.I-CPP yifilimu engasukiyo, engaqhelanganga, eveliswa yi-melt casting quenching.Xa kuthelekiswa nefilimu evuthelweyo, ibonakala ngesantya esikhawulezayo semveliso, imveliso ephezulu, kunye nokungafihli kakuhle kwefilimu, iglosi kunye nobungqingqwa obufanayo.Kwangaxeshanye, ngenxa yokuba yifilim ye-flat extrusion, iinkqubo ezilandelayo ezinje ngoshicilelo kunye ne-lamination zilunge kakhulu, ngoko ke isetyenziswa kakhulu ekupakishweni kwamalaphu, iintyatyambo, ukutya, kunye nezinto eziyimfuneko zemihla ngemihla.
Kukho iindlela ezimbini zokuvelisa i-CPP: ukuphosa kwe-single-layer kunye ne-multi-layer co-extrusion casting.Ifilimu ene-single-layer ifuna ngokukodwa ukuba izinto eziphathekayo zibe nokusebenza kakuhle kokutywinwa kobushushu obuphantsi kunye nokuguquguquka.Ifilimu ye-multi-layer co-extrusion cast inokwahlulwa ngokubanzi ibe ngamaleko amathathu: umaleko wokutywina ubushushu, umaleko wenkxaso kunye nomaleko we-corona.Ukukhethwa kwezinto eziphathekayo kubanzi kunefilimu yomgca omnye.Izinto eziphathekayo ezihlangabezana neemfuno zoluhlu ngalunye zingakhethwa ngabanye ukunika ifilimu iimpawu ezahlukeneyo, umsebenzi kunye nenjongo.Phakathi kwabo, i-heat-seal-sealing layer idinga ukutywinwa kobushushu, obufuna ukuba izinto eziphathekayo zibe nendawo ephantsi yokunyibilika, i-hot-melt, i-heat-heat-heat-heat-heat-heat-heat-heat-heat-heat-heat-heat, kunye nokutywinwa okulula: i-support layer ixhasa ifilimu kwaye yandisa ifilimu. ukuqina kwefilimu.Umaleko we-corona kufuneka uprintwe okanye ufakwe isinyithi, efuna ukunyanzeliswa komphezulu ophakathi, kwaye ukongezwa kwezongezo kufuneka kuthintelwe ngokungqongqo.
Ifilimu ye-CPP ephosiweyo inomsebenzi obalaseleyo wokutywinwa kobushushu kunye nokubonakala okugqwesileyo, kwaye yenye yezona zinto ziphambili zokupakisha ezihlanganisiweyo.Isetyenziselwa ukuvelisa iifilimu zokupheka ezinobushushu obuphezulu, iifilimu ze-vacuum aluminized, njl njl. Imarike inethemba elikhulu.
Ixesha lokuposa: Mar-09-2022