Ukuze kufezwe imiphumela emihle yokwelapha, kunezinto eziningana okudingeka zicatshangelwe, okuhlanganisa:
1. Uhlobo lwegumbi lokuphola kanye nesimo esifanele: isivinini kanye nenani lomoya oshisayo ovela kudivayisi yokushisa kanye nomhubhe; umhlabathi kanye nezinhlangothi ezimbili noma eziningana zegumbi lokuphola zinomoya oshisayo owanele futhi ofanayo wokushisa; umehluko omncane phakathi kokushisa kwangempela nokushisa okubekiwe, kanye nokugcinwa kokushisa kanye nokukhishwa kwemfucuza kuhlangabezana nezicelo; ama-roll efilimu kulula ukuwahambisa nokuwathatha.
2. Imikhiqizo iyahlangabezana nezicelo zobuchwepheshe.
3. Imisebenzi, inani le-corona, ukumelana nokushisa, njll. kwama-lamination fims.
4. Izinamathiseli: ingcina yesinyibilikisi, ingcina engenasinyibilikisi, ingcina yamanzi eyisisekelo esisodwa noma esiphindwe kabili, ingcina encibilikayo eshisayo, njll.
Leli phepha ligxile kakhulu kumafilimu e-lamination kanye nama-adhesive.
1. Amafilimu Okugcoba
Ukusebenza ngokomzimba, ukumelana nokushisa kanye nokusebenza kwezithiyo kwefilimu ye-PE, esetshenziswa kabanzi, kuzoba ngcono, uma ubuningi be-PE bukhuphuka. Amafilimu e-PE anobuningi obufanayo kodwa izinqubo zokukhiqiza ezahlukene anemisebenzi ehlukene.
I-CPE ingapholiswa ngokushesha, nge-crystallinity ephansi, ukukhanya okuphezulu kanye ne-turbidity ephansi. Kodwa ukuhlelwa kwama-molecule akuvamile, okwenza kube ukusebenza okubi kwesithiyo, okuyi-transmittance ephezulu. Futhi kuyafana ne-LDPE. Ngakho-ke, izinga lokushisa lokupholisa akufanele libe phezulu kakhulu uma usebenzisa amafilimu e-PE. Lapho ukumelana nokushisa kwe-PE kuthuthuka, izinga lokushisa lokupholisa lingaba phezulu.
2. Izinamathiseli
2.1 Ei-thylI-Adhesive Esekelwe
Ngokusho kokusebenza kwamafilimu e-lamination kanye nezinamathiselo, izimo zokwelapha zingahlukaniswa ngamazinga ahlukene:
1. Izinga lokushisa 35℃, isikhathi 24-48h
2. Izinga lokushisa 35-40℃, isikhathi 24-48h
3. Izinga lokushisa 42-45℃, isikhathi 48-72h
4. Izinga lokushisa 45-55℃, isikhathi 48-96h
5. Okukhethekile, izinga lokushisa elingaphezu kuka-100℃, isikhathi ngokuya ngosekelo lobuchwepheshe.
Ngemikhiqizo evamile, uma ucabangela ubuningi, ukujiya, ukuvimbela ukuvimba, ukusebenza kokumelana nokushisa kwamafilimu kanye nosayizi wezikhwama, izinga lokushisa lokupholisa akufanele libe phezulu kakhulu. Ngokuvamile, 42-45℃noma ngaphansi kwanele, isikhathi amahora angu-48-72.
Amafilimu e-lamination angaphandle, adinga ukusebenza okuphezulu kanye nokumelana nokushisa okuhle afanelekela ukupholisa amazinga okushisa aphezulu, njengokushisa okungaphezu kwama-50℃Amafilimu angaphakathi, njenge-PE noma i-heat sealing CPP, afaneleka ku-42-45℃, isikhathi sokupholisa singase sibe side.
Imikhiqizo yokubilisa noma yokuhoxa, edinga ukusebenza okuphezulu kanye nokumelana nokushisa okuphezulu, kufanele ivumelane nezimo zokuqiniswa ezinikezwa yifektri yokunamathela.
Isikhathi sokupholisa kufanele sihambisane nesilinganiso sokuqedwa kokusabela, isilinganiso sokungqubuzana kanye nokusebenza kokuvala ukushisa.
Imikhiqizo ekhethekile ingadinga izinga lokushisa eliphakeme lokupholisa.
2.2 I-Adhesive Engenasinyibilikisi
Uma ukusebenza kokuvala kuhlangabezana nesidingo, semikhiqizo ye-laminating engenaso isinyibilikisi, lapho amafilimu angaphakathi anobuningi obuphansi, izinamathiseli zinama-monomer amaningi amahhala, okwenza kube nzima ukuvala. Ngakho-ke, kunconywa ukupholisa okuphansi kokushisa, kuma-degrees angu-38-40.℃.
Uma izinga lokuqedwa kokusabela lihlangabezana nesidingo, isikhathi eside sokupholisa kufanele sicatshangelwe.
Uma amafilimu okuvala ukushisa enobuningi obukhulu, izinga lokushisa lokupholisa kufanele libe ngu-40-45℃. Uma izinga lokuqedwa kokusabela kanye nokusebenza kokuvala ukushisa kudinga ukuthuthuka, isikhathi sokupholisa kufanele sibe side.
Ukuhlolwa ngokuqinile kuyadingeka ngaphambi kokukhiqizwa ngobuningi, ukuqinisekisa ikhwalithi.
Ngaphezu kwalokho, umswakama kufanele ucatshangelwe. Ikakhulukazi ebusika obomile, umswakama ofanele ungasheshisa izinga lokusabela.
2.3 Izinamathiseli Ezisekelwe Emanzini
Uma ufaka i-laminate ku-VMCPP, umshini wokufaka i-laminate kumele wome ngokwanele, noma ungqimba olufakwe i-aluminium luzoncibilikiswa. Ngesikhathi sokupholisa, izinga lokushisa akufanele libe phezulu kakhulu noma liphansi kakhulu. Izinga lokushisa eliphezulu lizoholela ekuqineni okuphezulu kokungqubuzana.
2.4 Isinamathelisi Esincibilikayo Esishisayo
Ngokuvamile khetha ukuqina kwemvelo, kodwa ukusebenza kokunamathela ngemva kokuncibilika kufanele kuqashelwe.
3. Lawula Ngokuqinile Izinga Lokushisa Lokwelapha
Ngokusho kocwaningo, mayelana nesilinganiso sokusabela, cishe akukho ukusabela okungaphansi kwama-30℃. Ngaphezulu kweminyaka engama-30℃, njalo ngemizuzu eyi-10℃ephakeme, izinga lokusabela liyathuthuka cishe izikhathi ezine. Kodwa-keAkulungile ukuthuthukisa izinga lokushisa ukuze kusheshiswe izinga lokusabela ngokungaboni, kunezici eziningana okufanele ziqashelwe：izinga langempela lokusabela, i-coefficient yokungqubuzana kanye namandla okuvala ukushisa.
Ukuze kufezwe umphumela omuhle kakhulu wokwelapha, izinga lokushisa lokwelapha kufanele lihlukaniswe ngezici ezahlukene, ngokuya ngamafilimu nezakhiwo ze-lamination.
Okwamanje, izinkinga ezivamile yilezi ezilandelayo:
Okokuqala, izinga lokushisa lokupholisa liphansi kakhulu, okwenza izinga lokusabela libe liphansi, futhi umkhiqizo uba nezinkinga ngemva kokuvalwa noma ukubiliswa okushisayo.
Okwesibili, izinga lokushisa lokupholisa liphezulu kakhulu kanti ifilimu yokuvala eshisayo inobuningi obuphansi. Umkhiqizo unomsebenzi omubi wokuvala okushisa, i-coefficient ephezulu yokungqubuzana kanye nemiphumela emibi yokulwa nokuvimba.
4. Isiphetho
Ukuze kufezwe umphumela omuhle kakhulu wokwelapha, izinga lokushisa nesikhathi sokwelapha kufanele kunqunywe izinga lokushisa kanye nomswakama wendawo, ukusebenza kwefilimu kanye nokusebenza kwe-glue.
Isikhathi sokuthunyelwe: Ephreli-22-2021