Uma sikhuluma ngefilimu ye-co-extrude sibhekisela kuyo?Ikhiqizwa kanjani ifilimu esiyisebenzisayo?
Ifilimu yokupakisha ukudlayenziwa ngezinqubo ezimbili: i-Co-extrude ne-Lamination.Namuhla sikhuluma ikakhulukazi ngefilimu ehlanganisiwe.Kunezinqubo ezintathu ezihlukene ze-co-extrusion: ukubumba i- blow, ukupholisa amanzi kanye nokuphonswa.
Ngakho-ke, yiziphi izindlela zokukhiqizaifilimu yokupakisha ukudla?
1. Indlela yokushaya
Ngokupholisa komoya ukwenza ukupholisa kwefilimu, ukuze kuphole ngokushesha, kuthambile, ukwelula okuyindilinga, ukubonakala kwayo kungaphansi kokupholisa nokuphola kwamanzi, kepha ukucaba kanye namafilimu kungcono ekwenzeni izikhwama, kuyilapho ukwelula okuyindilinga kwe-spherical. ukukhiqizwa kwehigh-barrier ukudla elula ifilimui-ductility inomthelela wokuhamba.
2. Ukupholisa Amanzi
Ngokuthintana okuqondile kwamanzi nokupholisa kwefilimu ebusweni, ukuze kupholiswe ngokushesha, ukunwebeka okuyindilinga, ukucaba kwayo kungaphansi kancane kundlela yokugeleza, kodwa obala kangcono, kuyilapho ukwelula okuyindilinga kokukhiqizwa kwe-spherical.high-barrier ukudla elula ifilimui-ductility inomthelela wokuhamba.
3. Indlela yokusakaza
Ngokupholisa i-roller epholile, ukudla okunezithiyo eziphezulu zefilimu eyenziwe ngobude kunokwelula okuqondile, okuphambene nendawo akunakho ukwelula, ukuvuleka okuphelele kuhle, ukukhanya obala kungokwesibili endleleni yokuphefumula, kodwa i-ductility enwebekayo ingcono.
Ifilimu enezingqimba eziyishumi nanye ezigeleza ngokuhlanganyela zisebenzisa inqubo yokubambezeleka kokugeleza, isakhiwo sefilimu esendlalelo esiyishumi nanye isikhathi esingu-1 sokubumba ngokuhlanganyela, ukubumba njengempophoma ngemva kokuba inqubo yokubambezeleka kokugeleza igeleza phansi, ngemva kokuba ama-rollers amanzi abandayo abe abandayo enza ifilimu yepulasitiki, ngoba ifilimu yokupakisha ukudla ngokwayo ayikanwetshwa, ukusebenza kahle kwe-ductility, umshini okahle owelula owenza ifilimu elula, esetshenziselwa ukupakisha ukudla kwe-batch, kunohlobo lwendabuko lomshini we-vacuum, yonga abasebenzi, ukusebenza kahle okuphezulu.
Njengento esemqoka kakhulu yokusetshenziswaifilimu yokupakisha ukudla, izinhlobonhlobo zezidingo ezihlukene, okuqukethwe okupakishwayo kusuka kokuluhlaza kuya kokuphekiwe, kusukela kokuphansi kuya kwezinga lokushisa eliphezulu, kusukela esithelweni esisha esikhohlakele kuya emantongomane aqinile, kusukela ezikhwameni zokupakisha ze-vacuum kuya ezikhwameni zokupakisha eziphefumulayo, ngokuyisisekelo ihlanganisa ububanzi bezikhwama zokupakisha eziyinhlanganisela. .
1. Izidingo zokuhlukaniswa:Iningi lesigaba sokudla licebile ngamafutha namafutha, amafutha kanye namafutha athambekele ekubeni ne-oxidation kanye nokuwohloka, ngakho-ke izidingo eziqinile zokuvimbela umoya-mpilo,ifilimu yokupakisha ukudlangaphakathi kwezidingo zokwanda noma ukuncipha komswakama nazo ziphezulu kakhulu.
2. Umsebenzi womswakama:ukudla konke kuqukethe umswakama othize, lapho kukhethwa impahla yokupakisha, esimweni sezimo zokucubungula ukudla, ifomula ihlala ingashintshiwe, okuqukethwe komswakama wokudla kushintsha kancane kakhulu.Uma izimo zishintsha, zizothinta ngokuqondile inani lokuqala lomsebenzi womswakama wokudla, futhi umswakama ungenye yezinto ezibalulekile ezibangela ukuwohloka kokudla, inqobo nje uma kunomswakama othize, ama-microorganisms angakhula.Ngokudla okunomswakama okwehlukene, izinto ezihlukene kanye nezindlela kufanele zisetshenziswe.
a.Ukudla okunomswakama ophansi.Amagciwane awakwazi ukusinda emsebenzini womswakama wokudla okungaphansi kuka-0.65, ngomsebenzi womswakama ongaphansi kuka-0.60 wokudla okomile, inqobo nje uma ungagcinwa womile isikhathi eside ungaba mahhala ukonakala kokudla okubangelwa amagciwane.
b.Ukudla okunomswakama ophakathi nendawo.Ngomsebenzi womswakamo ku-0.60-0.90 ukudla okumswakama okuphakathi, ukugcina izindlela zekhwalithi yokudla yilezi,ukufakwa kwe-vacuum, ukupakishwa kwe-nitrogen, ukupakishwa kwe-deoxidizer, njll., okufakwa ekudleni okunamafutha oksijini ukuwohloka, ukushintsha kombala kokudla, njll.
c.Ukudla okunomswakama okuphezulu.Ngomsebenzi womswakama ku-0.9-1.0 ukudla okunomswakama omningi, izindlela zokugcinwa kwekhwalithi: 100 ℃ noma ngaphezulu ukuvala inzalo yokushisisa, ukusetshenziswa kwe-hydrogen peroxide, imisebe nokunye ukuvala inzalo kokupakishwa kwe-aseptic.
3. Ifilimu yokupakisha ukudla indima yokufaka inflatable:Indima yokufakwa kwe-inflatable ukunweba impilo yeshalofu, uhlobo lwe-inflatableizikhwama zokupakishanezidingo ezahlukene.
4. Izidingo zesikhwama sokupakisha okusanhlamvu:Okusanhlamvu kunomphumela wokuphefumula, okusanhlamvu okuhlukile kumthamo we-oxygen adsorption kuyahlukahluka kakhulu, esikhwameni ngasinye sokupakisha okusanhlamvu, kungasetshenziswa ekuhlukaniseni okuhle kakhulu kwefilimu yokupakisha ukudla egcwele umoya-mpilo ukuze kulondolozwe kangcono izikhwama zokupakisha ze-inflatable.
5. Izidingo ze-vacuum:I-oksijini ekhishiwe, evikela umswakama, kokubili ukuvikela ikhwalithi yezinto ezibonakalayo nokwenza ukubukeka kwempahla kubukeke kukuhle, kuphanayo.
Isikhathi sokuthumela: Aug-20-2021