Inkcazo: Eli phepha lihlalutya ingxaki yenqaku elimhlophe leefilimu ezihlanganisiweyo ze-PET/VMCPP kunye ne-PET/VMPET/PE xa zidityanisiwe, kwaye lizisa izisombululo ezihambelanayo.
Ifilimu edityanisiweyo ye-aluminiyam yinto yokupakisha ethambileyo ene-"aluminium luster" eyenziwe ngokudibanisa iifilimu ezigqunywe nge-aluminium (ngokubanzi i-VMPET/VMBOPP, VMCPP/VMPE, njl., phakathi kwazo i-VMPET kunye ne-VMCPP zezona zisetyenziswa ngokuqhelekileyo) kunye neefilimu zeplastiki ezicacileyo.Isetyenziselwa ukupakishwa kokutya, iimveliso zempilo, izinto zokuthambisa, kunye nezinye iimveliso.Ngenxa yokucwebezela kwayo kwesinyithi, ukulula, ukufikeleleka, kunye nokusebenza kakuhle komqobo, isetyenziswe ngokubanzi (iipropati ezingcono zokuthintelwa kuneefilimu zeplastiki ezihlanganisiweyo, ezingabizi kwaye zifikeleleke. Ikhaphukhaphu kuneefilimu ezihlanganisiweyo ze-aluminium-plastiki).Nangona kunjalo, amabala amhlophe ahlala ekhona ngexesha lokuveliswa kweefilimu ezihlanganisiweyo ze-aluminium.Oku kubonakala ngokukodwa kwiimveliso zefilimu ezidibeneyo kunye ne-PET / VMCPP kunye ne-PET / VMPET / PE izakhiwo.
1, oonobangela kunye nezisombululo "amabala amhlophe"
Inkcazo yento "yebala elimhlophe": Kukho amabala amhlophe acacileyo ekubonakaleni kwefilimu edibeneyo, enokuthi isasazwe ngokungaqhelekanga kunye nobukhulu obufanayo.Ngokukodwa kwiifilim ezingashicilelwanga eziyintlanganisela kunye nepleyiti epheleleyo ye-inki emhlophe okanye ifilimu edityanisiweyo enombala okhanyayo, icace ngakumbi.
1.1 Ukunganyanzeki komphezulu onganelanga kwicala le-aluminiyam yokubeka i-aluminiyam.
Ngokubanzi, uvavanyo loxinzelelo lomphezulu kufuneka lwenziwe kumphezulu we-corona yefilimu esetyenziswe ngaphambi kokudibanisa, kodwa ngamanye amaxesha uvavanyo lwe-aluminium yokwaleka aluhoywa.Ngokukodwa kwiifilimu ze-VMCPP, ngenxa yokuba nokwenzeka kwemvula yezongezo ze-molekyuli ezincinci kwifilimu yesiseko se-CPP, i-aluminium plated surface yeefilimu ze-VMCPP ezigcinwe ixesha elithile zixhomekeke kwingcinezelo eyaneleyo.
1.2 Umgangatho ombi wokuncamathelisa
Izinto zokuncamathelisa ezisekwe kwi-solvent kufuneka zikhethe esona sisombululo siphezulu sigxininise ngokwencwadi yemveliso ukuqinisekisa ukunyuswa kweglu.Kwaye ulawulo lokuvavanya i-viscosity kufuneka luphunyezwe ngexesha lenkqubo eqhubekayo yokuvelisa.Xa i-viscosity ikhula kakhulu, i-solvents kufuneka yongezwe ngokukhawuleza.Amashishini anemiqathango anokukhetha izixhobo ezizenzekelayo zokumpompa iglu.Ubushushu obuphezulu bokufudumala kwi-adhesives-free adhesives kufuneka kukhethwe ngokwencwadana yemveliso.Ukongezelela, ukuqwalasela umba wexesha lokusebenzisa i-solvent-free, emva kwexesha elide, iglue kwi-roller yokulinganisa kufuneka ikhutshwe ngexesha elifanelekileyo.
1.3Inkqubo yokudibanisa engalunganga
Kwizakhiwo ze-PET / VMCPP, ngenxa yobunzima obuncinci kunye nokwandiswa okulula kwefilimu ye-VMCPP, uxinzelelo lwe-lamination roller akufanele lube luphezulu kakhulu ngexesha le-lamination, kwaye ukunyanzeliswa kwe-winding akufanele kube phezulu.Nangona kunjalo, xa i-PET / VMCPP isakhiwo siyimbumba, ngenxa yokuba ifilimu ye-PET iyifilimu eqinile, kuyacetyiswa ukuba ukwandise uxinzelelo lwe-roller laminating kunye noxinzelelo olujikelezayo ngokufanelekileyo ngexesha lokudibanisa.
Iiparamitha ezihambelanayo zenkqubo edibeneyo kufuneka zenziwe ngokusekelwe kwimeko yezixhobo ezidibeneyo xa izakhiwo zokugquma i-aluminiyam ezahlukeneyo.
1.4 Izinto zangaphandle ezingena kwifilimu edibeneyo ebangela "amabala amhlophe"
Izinto zangaphandle ikakhulu ziquka uthuli, amasuntswana erabha, okanye inkunkuma.Uthuli nobutyobo buphuma ikakhulu kwindawo yokusebenzela, kwaye kunokwenzeka ukuba kwenzeke xa ucoceko locweyo lungekho mgangathweni.Amasuntswana erabha ubukhulu becala avela kwiidiski zerabha, iirola zokugquma, okanye iirola zokubopha.Ukuba isityalo esidibeneyo asiyiyo i-workshop engenathuli, kufuneka iphinde izame ukuqinisekisa ukucoceka kunye nokucoceka kwendawo yokusebenzela edibeneyo, ukufaka ukususwa kothuli okanye izixhobo zokucoca (isixhobo sokugquma, i-roller yesikhokelo, isixhobo sokudibanisa kunye nezinye izinto) zokucoca.Ngokukodwa i-coating roller, i-scraper, i-flattening roller, njl. Kufuneka ihlambuluke rhoqo.
1.5 Ukufuma okuphezulu kwiworkshop yemveliso kukhokelela “kwindawo ezimhlophe”
Ngokukodwa ngexesha lemvula, xa i-workshop humidity i-≥ 80%, ifilimu ehlanganisiweyo ixhomekeke kwinto "yeendawo ezimhlophe".Faka imitha yobushushu kunye nokufuma kwindawo yokusebenzela ukurekhoda utshintsho kwiqondo lokushisa kunye nokufuma, kwaye ubale ukuba nokwenzeka kwamabala amhlophe avelayo.Amashishini anemiqathango anokuqwalasela ukufakela izixhobo zokukhupha amanzi.Kwizakhiwo ezihlanganisiweyo ezinoluhlu oluneempawu ezintle zomqobo, kuyafuneka ukuba kuqwalaselwe ukumiswa kwemveliso okanye ukuvelisa umaleko omnye obuninzi okanye obuphakathi.Ukongezelela, ngelixa uqinisekisa ukusebenza okuqhelekileyo kwe-adhesive, kucetyiswa ukunciphisa inani le-agent ephilisayo esetyenziswe ngokufanelekileyo, ngokuqhelekileyo nge-5%.
1.6 Umphezulu weGluing
Xa kungabikho ziphoso ezicacileyo ezifunyenweyo kwaye ingxaki "yamabala amhlophe" ayinakusonjululwa, inkqubo yokugqoka kwicala le-aluminium yokugqoka ingaqwalaselwa.Kodwa le nkqubo inemida ebalulekileyo.Ngokukodwa xa i-VMCPP okanye i-VMPET yokugqoka i-aluminium iphantsi kobushushu kunye noxinzelelo kwi-oven, ixhomekeke kwi-tensile deformation, kwaye inkqubo edibeneyo kufuneka ilungiswe.Ukongeza, amandla e-peel yomaleko we-aluminiyam weplating anokwehla.
1.7 Inkcazo ekhethekileyo yemeko apho kungakhange kufumaneke gwenxa emva kokuvalwa, kodwa "amabala amhlophe" avela emva kokuvuthwa:
Olu hlobo lwengxaki luqhele ukwenzeka kwizakhiwo ezidibeneyo ze-membrane ezineempawu ezintle zomqobo.Kwi-PET / VMCPP kunye ne-PET / VMPET / PE izakhiwo, ukuba isakhiwo se-membrane sinzima, okanye xa usebenzisa iifilimu ze-KBOPP okanye i-KPET, kulula ukuvelisa "amabala amhlophe" emva kokuguga.
Iifilimu ezidityanisiweyo eziphezulu zemiqobo yezinye izakhiwo nazo ziyakwazi ukujongana nengxaki efanayo.Imizekelo ibandakanya ukusebenzisa ifoyile yealuminiyam eshinyeneyo okanye iifilim ezincinci ezifana ne-KNY.
Esona sizathu siphambili sale nto "indawo emhlophe" kukuba kukho ukuvuza kwegesi ngaphakathi kwenwebu edibeneyo.Le gesi inokuba kukuphuphuma kwezinyibilikisi ezishiyekileyo okanye ukuphuphuma kwegesi yecarbon dioxide eveliswa kusabela phakathi kwearhente yokunyanga kunye nomphunga wamanzi.Emva kokuba igesi iphuphuma, ngenxa yeempawu ezintle zomqobo wefilimu edibeneyo, ayikwazi ukukhutshwa, okubangelwa ukubonakala "kweendawo ezimhlophe" (iibhubhu) kwindawo edibeneyo.
Isisombululo: Xa udibanisa i-adhesive based adhesive, i-parameters yenkqubo efana neqondo lokushisa kwe-oven, umthamo womoya, kunye noxinzelelo olubi kufuneka lubekwe kakuhle ukuqinisekisa ukuba akukho i-solvent eseleyo kwi-adhesive layer.Lawula ukufuma kwi-workshop kwaye ukhethe inkqubo yokunamathela evaliweyo.Cinga ngokusebenzisa into enyangayo engavelisi amaqamza.Ukongezelela, xa usebenzisa i-adhesives based adhesives, kuyimfuneko ukuvavanya umgangatho womswakama kwi-solvent, kunye nemfuno yomswakama ≤ 0.03%.
Oku ngasentla kukungeniswa kwinto "yeendawo ezimhlophe" kwiifilimu ezidibeneyo, kodwa kukho izizathu ezahlukahlukeneyo ezinokubangela iingxaki ezinjalo kwimveliso yangempela, kwaye kuyimfuneko ukwenza izigwebo kunye nokuphucula ngokusekelwe kwimeko yokuvelisa ngokwenene.
Ixesha lokuposa: Dec-11-2023