Ukuze kuzuzwe imiphumela emihle yokwelapha, izici eziningana zidinga ukucatshangelwa, okuhlanganisa:
1. Ifomu legumbi lokuphulukisa kanye nesimo esihle: isivinini kanye nenani lomoya oshisayo ovela kudivayisi yokushisisa nomhubhe;umhlabathi kanye nezinhlangothi ezimbili noma eziningana zegumbi lokuphulukisa zinezinga lokushisa elanele nelifana nomoya oshisayo;umehluko omncane phakathi kwezinga lokushisa langempela nelibekiwe, nokugcinwa kokushisa nokukhishwa kwemfucuza kuhlangabezana nezicelo;imiqulu yefilimu kulula ukuyihambisa nokuyithatha.
2. Imikhiqizo ihlangabezana nezicelo zobuchwepheshe.
3. Imisebenzi, inani le-corona, ukumelana nokushisa, njll. ye-lamination fims.
4. Ama-Adhesives: i-adhesive solvent, i-adhesive solventless, i-adhesive yamanzi eyisisekelo esisodwa noma kabili, i-adhesive encibilikayo eshisayo, njll.
Leli phepha ligxile kakhulu kumafilimu e-lamination kanye nama-adhesives.
1. Amafilimu eLamination
Umzimba, ukumelana nokushisa nokusebenza kwesithiyo sefilimu ye-PE, esetshenziswa kabanzi, kuzoba ngcono, lapho ukuminyana kwe-PE kuphakama.Amafilimu e-PE anomthamo ofanayo kodwa izinqubo zokukhiqiza ezihlukene zinemidlalo ehlukene.
I-CPE ingapholiswa ngokushesha, ngobucwebe obuphansi, ukukhanya okuphezulu kanye ne-turbidity ephansi.Kodwa ukuhlelwa kwamangqamuzana akuvamile, okwenza kube yizithiyo ezimbi zokusebenza, okuwukudluliselwa okuphezulu.Futhi kuyafana nge-LDPE.Ngakho-ke, izinga lokushisa lokwelapha akufanele libe phezulu kakhulu uma usebenzisa amafilimu e-PE.Lapho ukumelana nokushisa kwe-PE kuba ngcono, izinga lokushisa lokuphulukisa lingaba phezulu.
2. Izinamathiselo
2.1 EthylI-Adhesive esekelwe
Ngokusho kokwenziwa kwamafilimu nama-adhesives, izimo zokuphulukisa zingahlukaniswa zibe amazinga 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 kwe-100℃, isikhathi ngokusho kokusekelwa kwezobuchwepheshe.
Emikhiqizweni evamile, uma kucatshangelwa ukuminyana, ukujiya, i-anti-block, ukusebenza kokumelana nokushisa kwamafilimu kanye nosayizi wezikhwama, izinga lokushisa lokwelapha akufanele libe phezulu kakhulu.Ngokuvamile, 42-45℃noma ngaphansi kwanele, isikhathi 48-72 amahora.
Amafilimu e-lamination angaphandle, adinga ukusebenza okuphezulu nokumelana nokushisa okuhle afanele ukuphulukiswa kwezinga lokushisa eliphakeme, njengangaphezu kwama-50.℃.Amafilimu angaphakathi, njenge-PE noma i-CPP yokuvala ukushisa, afaneleka ku-42-45℃, isikhathi sokwelapha singase sibe side.
Imikhiqizo ebilisayo noma ebuyisela emuva, edinga ukusebenza okuphezulu nokumelana nokushisa okuphezulu, kufanele ihambisane nezimo zokuphulukisa ezihlinzekwa yifekthri yokunamathisela.
Isikhathi sokwelapha kufanele sihambisane nesilinganiso sokuqedela ukusabela, i-coefficient yokungqubuzana nokusebenza kokuvalwa kokushisa.
Imikhiqizo ekhethekile ingase idinge izinga lokushisa eliphezulu lokuphulukisa.
2.2 I-Solventless Adhesive
Uma ukusebenza kokubeka uphawu kuhlangabezana nemfuneko, emikhiqizweni ye-laminating engena-solvent, lapho amafilimu angaphakathi ane-density ephansi, ama-adhesive anama-monomers amaningi amahhala, okwenza kube nzima ukuvala.Ngakho-ke, ukuphulukiswa kokushisa okuphansi kunconywa, ku-38-40℃.
Uma izinga lokuqeda ukusabela lihlangabezana nemfuneko, isikhathi eside sokwelapha kufanele sicatshangelwe.
Uma amafilimu okufaka uphawu okushisa enomthamo omkhulu, izinga lokushisa lokuphulukisa kufanele libe ngu-40-45℃. Uma izinga lokuqeda ukusabela kanye nokusebenza kokuvalwa kokushisa kudinga ukuthuthukiswa, isikhathi sokwelapha kufanele sibe side.
Ukuhlolwa okuqinile kuyadingeka ngaphambi kokukhiqizwa ngobuningi, ukuqinisekisa ikhwalithi.
Ngaphezu kwalokho, umswakama kufanele ucatshangelwe.Ikakhulukazi ebusika obomile, umswakama ofanele ungasheshisa izinga lokusabela.
2.3 Izinamatheliso Ezisekelwe Emanzini
Lapho i-laminating i-VMCPP, umshini wokugcwalisa kufanele wome ngokwanele, noma ungqimba olu-aluminum luzokwenziwa nge-oxidized.Ngesikhathi sokwelashwa, izinga lokushisa akufanele libe phezulu kakhulu noma libe phansi kakhulu.Izinga lokushisa eliphezulu lizoholela ku-coefficient ephezulu yokungqubuzana.
2.4 I-Hot Melt Adhesive
Ngokuvamile khetha ukuphulukiswa kwemvelo, kodwa ukusebenza kokunamathela ngemva kokuncibilika kufanele kuqashelwe.
3. Lawula Ngokuqinile Izinga lokushisa Lokwelapha
Ngokusho kocwaningo, esicini sezinga lokuphendula, cishe akukho ukusabela ngaphansi kwama-30℃. Bangaphezu kuka-30℃, njalo ngo-10℃ephakeme, izinga lokusabela lithuthuka cishe izikhathi ezi-4.Kodwa yonaAkulungile ukwenza ngcono izinga lokushisa ukusheshisa izinga lokusabela ngokungaboni, izici ezimbalwa kufanele ziqashelwe:isilinganiso sangempela sokusabela, i-coefficient yokungqubuzana namandla okuvalwa kokushisa.
Ukuze uthole umphumela omuhle kakhulu wokuphulukisa, izinga lokushisa lokuphulukisa kufanele lihlukaniswe ngezici ezahlukene, ngokusho kwamafilimu nezakhiwo ze-lamination.
Okwamanje, izinkinga ezivamile zimi kanje:
Okokuqala, izinga lokushisa lokuphulukisa liphansi kakhulu, okwenza izinga lokusabela eliphansi, futhi umkhiqizo unezinkinga ngemva kokuvalwa okushisayo noma ukubiliswa.
Okwesibili, izinga lokushisa lokwelapha liphezulu kakhulu futhi ifilimu yokuvala eshisayo inokuminyana okuphansi.Umkhiqizo unokusebenza okubi kokuvalwa kokushisa okushisayo, i-coefficient ephezulu yokungqubuzana kanye nemiphumela emibi yokuvimba ukuvimba.
4. Isiphetho
Ukufeza umphumela omuhle kakhulu wokuphulukisa, izinga lokushisa lokuphulukisa nesikhathi kufanele kunqunywe izinga lokushisa lendawo nomswakama, ukusebenza kwefilimu nokusebenza kokunamathela.
Isikhathi sokuthumela: Apr-22-2021