Ukuze kufezekiswe iziphumo ezifanelekileyo zokunyanga, kufuneka kuqwalaselwe izinto ezininzi, kuquka:
1. Uhlobo lwegumbi lokuphilisa kunye nemeko efanelekileyo: isantya kunye nobungakanani bomoya oshushu ovela kwisixhobo sokufudumeza kunye nomjelo; umhlaba kunye namacala amabini okanye aliqela egumbi lokuphilisa anomoya oshushu owaneleyo nofanayo kubushushu; umahluko omncinci phakathi kobushushu bokwenyani nobekiweyo, kunye nokugcinwa kobushushu kunye nokukhutshwa kwenkunkuma kuhambelana nezicelo; iiroli zefilimu kulula ukuzihambisa nokuzithatha.
2. Iimveliso ziyahlangabezana nezicelo zobugcisa.
3. Imisebenzi, ixabiso le-corona, ukumelana nobushushu, njl.njl. kwee-lamination fims.
4. Izincamathelisi: isincamathelisi esinyibilikisayo, isincamathelisi esingenasinyibilikisi, isincamathelisi esisisiseko samanzi esinye okanye esiphindwe kabini, isincamathelisi esinyibilikisayo esishushu, njl.njl.
Eli phepha ligxile kakhulu kwiifilimu ze-lamination kunye ne-adhesives.
1. Iifilimu zeLamination
Ukusebenza ngokomzimba, ukumelana nobushushu kunye nomqobo wefilimu ye-PE, esetyenziswa kakhulu, kuya kuba ngcono, xa uxinano lwe-PE lunyuka. Iifilimu ze-PE ezinoxinano olufanayo kodwa iinkqubo zemveliso ezahlukeneyo zineentsebenzo ezahlukeneyo.
I-CPE inokupholiswa ngokukhawuleza, inekristali ephantsi, ukukhanya okuphezulu kunye nokuxinana okuphantsi. Kodwa ulungelelwaniso lweemolekyuli aluhambelani kakuhle, nto leyo eyenza ukuba isebenze kakubi, nto leyo ebangela ukuba idluliseleke kakhulu. Kwaye kuyafana nakwi-LDPE. Ke ngoko, ubushushu bokuphilisa akufuneki bube phezulu kakhulu xa usebenzisa iifilimu ze-PE. Xa ukumelana nobushushu be-PE kuphucuka, ubushushu bokuphilisa bunokuba phezulu.
2. Izincamathelisi
2.1 Ei-thylIsiseko se-Adhesive
Ngokwendlela iifilimu ze-lamination kunye ne-adhesives ezisebenza ngayo, iimeko zokuphilisa zingahlulwahlulwa zibe ngamanqanaba ahlukeneyo:
1. Ubushushu 35℃, ixesha 24-48h
2. Ubushushu 35-40℃, ixesha 24-48h
3. Ubushushu 42-45℃, ixesha 48-72h
4. Ubushushu 45-55℃, ixesha 48-96h
5. Ikhethekileyo, ubushushu obungaphezulu kwe-100℃, ixesha ngokwenkxaso yobugcisa.
Kwiimveliso eziqhelekileyo, xa kujongwa uxinano, ubukhulu, i-anti-block, ukusebenza kwefilimu ukumelana nobushushu kunye nobukhulu beengxowa, ubushushu bokuphilisa akufuneki bube phezulu kakhulu. Ngokwesiqhelo, 42-45℃okanye ngaphantsi kwanele, ixesha ziiyure ezingama-48-72.
Iifilimu ze-lamination zangaphandle, ezifuna ukusebenza okuphezulu kunye nokumelana nobushushu obuncinci, zifanelekile ukunyanga ubushushu obuphezulu, njenge-50℃Iifilimu zangaphakathi, ezifana ne-PE okanye i-heat sealing CPP, zifanelekile kwi-42-45℃, ixesha lokuphola linokuba lide.
Iimveliso zokubilisa okanye zokujika, ezifuna ukusebenza okuphezulu kunye nokumelana nobushushu obuphezulu, kufuneka zihambelane neemeko zokunyibilika ezibonelelwa ngumzi-mveliso wokuncamathelisa.
Ixesha lokunyanga kufuneka lihambelane nesantya sokugqitywa kwempendulo, i-friction coefficient kunye nokusebenza kokutywina ubushushu.
Iimveliso ezikhethekileyo zinokufuna ubushushu obuphezulu bokunyibilika.
2.2 Isincamathelisi esingenakunyibilikiswa
Ukuba ukusebenza kokutywina kuyahlangabezana neemfuno, kwiimveliso zokutywina ezingenasombululo, apho iifilimu zangaphakathi zinoxinano oluphantsi, izincamathelisi zinee-monomers ezininzi zasimahla, okwenza kube nzima ukuzitywina. Ke ngoko, kucetyiswa ukucocwa kobushushu obuphantsi, kwi-38-40℃.
Ukuba izinga lokugqiba ukusabela liyahlangabezana neemfuno, kufuneka kuthathelwe ingqalelo ixesha elide lokulungisa.
Ukuba iifilimu zokuvala ubushushu zinoxinano olukhulu, ubushushu bokuphilisa kufuneka bube ngama-40-45℃. Ukuba izinga lokugqiba ukusabela kunye nokusebenza kokuvala ubushushu kufuna ukuphucula, ixesha lokunyanga kufuneka libe lide.
Uvavanyo oluqinileyo luyimfuneko ngaphambi kokuba kwenziwe imveliso ngobuninzi, ukuqinisekisa umgangatho.
Ngaphezu koko, kufuneka kuqwalaselwe ukufuma. Ingakumbi ebusika obomileyo, ukufuma okufanelekileyo kunokukhawulezisa izinga lokusabela.
2.3 Izincamathelisi Ezisekelwe Emanzini
Xa kulayishwa i-VMCPP, umatshini wokulayisha kufuneka wome ngokwaneleyo, kungenjalo umaleko oye waluminishwa uya kunyibilikiswa. Ngexesha lokunyibilikisa, ubushushu akufuneki bube phezulu kakhulu okanye bube phantsi kakhulu. Ubushushu obuphezulu buya kukhokelela kwi-coefficient ephezulu yokungqubana.
2.4 Isincamathelisi esinyibilikayo esishushu
Ngokwesiqhelo khetha ukunyibilika kwendalo, kodwa ukusebenza kokunamathela emva kokunyibilika kufuneka kuqatshelwe.
3. Lawula Ngokungqongqo Ubushushu Bokuphilisa
Ngokwezifundo zophando, malunga nenqanaba lokuphendula, akukho phantse mpendulo ingaphantsi kwama-30℃. Ngaphezulu kwama-30℃, rhoqo emva kwe-10℃iphezulu, izinga lokusabela liyaphucuka malunga namaxesha ama-4. Kodwa keAyilunganga ukuphucula ubushushu ukuze kukhawuleziswe izinga lokuphendula ngokungaboniyo, kufuneka kuqatshelwe izinto ezininzi：izinga lokwenyani lokusabela, i-frosting coefficient kunye namandla okutywina ubushushu.
Ukuze kufezekiswe iziphumo ezilungileyo zokunyanga, ubushushu bokunyanga kufuneka bahlulwe ngokwahlukeneyo, ngokweefilimu kunye nezakhiwo ze-lamination.
Okwangoku, iingxaki eziqhelekileyo zezi zilandelayo:
Okokuqala, ubushushu bokunyibilika buphantsi kakhulu, okwenza izinga lokuphendula libe liphantsi, kwaye imveliso ineengxaki emva kokuba ivalwe okanye ibilisiwe ngobushushu.
Okwesibini, ubushushu bokuphilisa buphezulu kakhulu kwaye ifilimu yokutywina eshushu inoxinano oluphantsi. Le mveliso inomsebenzi ombi wokutywina eshushu, i-friction coefficient ephezulu kunye nemiphumo emibi yokulwa nokuvimba.
4. Isiphelo
Ukuze kufezekiswe isiphumo esihle kakhulu sokunyanga, ubushushu kunye nexesha lokunyanga kufuneka kugqitywe bubushushu kunye nokufuma kwendawo, ukusebenza kwefilimu kunye nokusebenza kweglue.
Ixesha lokuthumela: Epreli-22-2021