Ngokubaiifilimu zokupakisha ukutyazineepropathi ezigqwesileyo zokukhusela ngokufanelekileyo ukhuseleko lokutya, kwaye ukungafihli kwabo okuphezulu kunokuhombisa ngokufanelekileyo ukupakishwa,iifilimu zokupakisha ukutyaidlala indima ekhulayo ekupakisheni imveliso.Ukuze kuhlangatyezwane nemeko yangaphandle eguqukayo yangoku kunye neemfuno zabathengi abahlukeneyo, iinkampani ezininzi kwihlabathi jikelele zonyuse uphando kunye neenzame zophuhliso kwi.iifilimu zokupakisha ukutya.
1. Ifilimu yokupakisha ngokubanzi
Iifilimu zokupakisha ukutya ezisetyenziswa ngoku zibandakanya ikakhulu: ifilimu yokuthintela i-PVA,ifilimu yepolypropylene ejolise kwibiaxially (BOPP), ifilimu yepolyester ene-biaxially oriented (BOPET),ifilimu enayiloni (PA), ifilimu ye-polypropylene ephosiweyo (CPP) , ifilimu ye-aluminium, njl. Ezi filimu zisetyenziswa ngokubanzi ngenxa yokusebenza kwazo okugqwesileyo, ukungafihli kakuhle, amandla okuqina aphezulu, iipropati ezithile zokuthintela igesi kunye namanzi kunye neendleko eziphantsi zokuvelisa.
2. Ifilimu yokupakisha etyiwayo
Iifilimu zokupakisha ezidliwayo zibhekisela kwizinto ezidliwayo, ngokukodwa izinto zendalo ze-macromolecular ezifana ne-lipids, iiprotheni kunye ne-polysaccharides, ezongezwa kunye neeplastiki ezidliwayo, i-agent-linking agents, njl., ezixutywe ngemiphumo yomzimba, kwaye zicutshungulwe ngeendlela ezahlukeneyo zokucubungula Ifilimu yenziwe.Ngokweempawu zezixhobo eziphambili ezisetyenziswayo, iifilimu ezityiwayo zinokwahlulwa zibe ziindidi ezine: iifilimu ezityiwayo zecarbohydrate, iifilimu ezityiwayo zeprotheyini, iifilimu ezityiwayo ezinelipid, kunye neefilimu ezityiwayo.Iifilimu ezisebenzayo ezityiwayo zisetyenziswe kakhulu kubomi bemihla ngemihla, njengephepha lerayisi elityebileyo elisetyenziswa kwipakethe yeelekese, iikomityi zokubhaka zombona ze-ayisikrimu, njl., ezizizo zonke iipakethe ezityiwayo.Xa kuthelekiswa nezinto zokupakisha zokwenziwa, iifilimu ezityiwayo zinokonakaliswa ngaphandle kongcoliseko.Ngokwandiswa kolwazi lwabantu ngokusingqongileyo, iifilimu ezityiwayo ziye zakhawuleza zaba yindawo yophando kwindawo yokupakishwa kokutya kwaye zifumene iziphumo ezithile.
3. I-Antibacterialifilimu yokupakisha ukutya
I-antibacterialifilimu yokupakisha ukutyaluhlobo lwefilimu esebenzayo enekhono lokuthintela okanye ukubulala iibhaktheriya ezingaphezulu.Ngokwendlela ye-antibacterial, inokwahlulwa ibe ziindidi ezimbini: i-antibacterial ngqo kunye ne-antibacterial engathanga ngqo.I-antibacterial ethe ngqo iphunyezwa ngoqhagamshelwano oluthe ngqo phakathi kwezinto zokupakisha ezinezithako ze-antibacterial kunye nokutya;i-antibacterial engathanga ngqo kukongeza izinto ezithile kumphathi onokuthi alungelelanise i-microenvironment kwiphakheji, okanye ukusebenzisa i-permeability ekhethiweyo yezinto zokupakisha ukulawula ii-microorganisms.Ukukhula, okufana nefilimu yokupakisha elungisiweyo.
4. Ifilimu yokupakisha yeNanocomposite
Ifilimu ye-Nanocomposite ibhekisela kwizinto ezidibeneyo zefilimu ezenziwe ngamacandelo anemilinganiselo ngokomyalelo we-nanometers (1-100nm) efakwe kwiimatriki ezahlukeneyo.Ineengenelo zazo zombini izixhobo ezidityanisiweyo zemveli kunye namananomaterials anamhlanje.Ngenxa yempembelelo yomhlaba, umphumo wevolumu, isiphumo sobungakanani kunye nezinye iimpawu ezibangelwa yisakhiwo esikhethekileyo seefilimu ze-nanocomposite, iimpawu zabo ze-optical, izakhiwo zomatshini, iipropati ze-antibacterial, iipropathi zomqobo kunye nezinye iinkalo zineempawu ezingenayo izinto eziqhelekileyo, ezenza zibe luncedo. ekutyeni.Isetyenziselwa ngokubanzi ukupakisha, kungekhona nje ukuhlangabezana neemfuno zokwandisa ubomi beshelufu yokutya, kodwa kunye nokubeka iliso kwiinguqu zomgangatho wokutya kwiphakheji.
5. Ifilimu yokupakishwa kwe-Biodegradable
Olu hlobo lwefilimu lusombulula ingxaki enkulu yokuba kunzima ukuphinda usebenzise izinto zokupakisha ezingonakali.Ukuzingcwaba ngaphantsi komhlaba kuya kutshabalalisa ubume bomhlaba, kwaye ukutshiswa kuya kuvelisa iigesi eziyityhefu kwaye kubangele ungcoliseko lomoya.Ngokomatshini wokuthotywa, yohlulwe ikakhulu kwifilimu yokupakisha enokuthotywa kunye nefilimu yokupakisha enokubola.
Ngenxa yokuba iifilimu ezingonakaliswayo zihlangabezana neemfuno zokukhuselwa kwendalo, ngoku zifundwa ngokubanzi kwaye ziye zatsala ingqalelo yabaphandi abahlukeneyo.Kuphuhliswe izixhobo ezininzi ezitsha ezingonakaliswayo nezilungele ukusingqongileyo, ezifana neepolima ezenziwe ngesitatshi sezinto ezikrwada kusetyenziswa izixhobo zezityalo ezivuselelekayo (ezifana nombona).I-Lactic acid (PLA), i-polypropylene carbonate carbonate (PPC) ehambelana nokusingqongileyo eyenziwe kwi-carbon dioxide kunye ne-propylene oxide njengezinto ezibonakalayo, kunye ne-chitosan (chitosan) efunyenwe kwi-deacetylation ye-chitin, efumaneka ngokubanzi kwindalo..Ezi zixhobo eziphathekayo ziyancipha;iipropathi zamehlo, ukungafihli, kunye neglosi yomphezulu nazo azinakonakala ngokupheleleyo.Ayidibanisi kuphela nokucaca okuphezulu kweefilimu zokupakisha, kodwa iphinda idlale indima esebenzayo ekuphuculeni okusingqongileyo, kwaye inethemba elikhulu lokusebenzisa.
Nangona kunjalo, kufanelekile ukukhankanya ukuba ifilimu yokupakisha ukutya ineemfuno ezingqongqo kucoceko kunye nokhuseleko lwezinto zokupakisha, kwaye ifuna imigangatho ehambelanayo kunye neenkqubo zovavanyo.Nangona amanye amanyathelo ethathiwe ekhaya naphesheya, kusekho ukusilela okuninzi..Amazwe angaphandle asanda kuphuhlisa ukusetyenziswa kwetekhnoloji yonyango lomphezulu weplasma ukukhupha i-SiOx, i-AlOx kunye nezinye ii-coatings ze-inorganic oxide kwii-substrates ezifana ne-PET kunye ne-BOPP ukufumana iifilimu zokupakisha ezineempawu eziphezulu zokuthintela.Ifilimu ye-silicone efakwe kwi-silicone izinzile kwiqondo lokushisa kwaye ifanelekile ekuphekeni okuphezulu kokushisa kunye nokupakishwa kokutya kwe-sterilization.Iifilimu ezonakaliswayo, iifilimu ezityiwayo kunye neefilim ezinyibilikayo emanzini zizo zonke iimveliso zokupakisha eziluhlaza eziphuhliswe ngamazwe kwihlabathi liphela kwiminyaka yakutshanje.Uphando malunga nokusetyenziswa kweepolymers zendalo ze-macromolecular ezifana ne-lipids, iiprotheni kunye neswekile njengoko iifilimu zokupakisha nazo ziye zanda.
Ukuba unayoifilimu yokupakisha ukutyaiimfuno, ungaqhagamshelana nathi.Njengomenzi wokupakisha oguquguqukayo ngaphezu kweminyaka engama-20, siya kubonelela ngezisombululo zakho ezifanelekileyo zokupakisha ngokweemfuno zakho zemveliso kunye nohlahlo lwabiwo-mali.
Ixesha lokuposa: Dec-27-2023
