I-Polyethylene terephthalate (PET) luhlobo lweplastiki esetyenziswa kakhulu kwishishini lokupakisha ukutya. Udumo lwayo lusukela ekukhanyeni kwayo okugqwesileyo, amandla, kunye neempawu zesithintelo, iyenza ibe yinto efanelekileyo yokupakishwa kokutya okwahlukeneyo. Kodwa ngaba i-PET kukutya ngokwenene-iplastiki yebakala? Eli nqaku liza kuphonononga kwiimpawu ze-PET, usetyenziso lwayo ekupakishweni kokutya, kwaye livavanye ukuba liyahlangabezana nemigangatho yokutya-yemigangatho yeeplastiki. Ukongeza, siya kuphonononga iibhokisi ezahlukeneyo zokupakisha zePET ezisetyenziswa kushishino.
Ukuqonda izinto zePET
I-PET yintlaka ye-polymer ye-thermoplastic yosapho lwe-polyester. Isetyenziswa ngokubanzi kwiintsinga zempahla, izikhongozeli zolwelo kunye nokutya, kunye nokuveliswa kwe-thermoforming. Ubume balo beekhemikhali bubandakanya ukuphindaphinda iiyunithi ze-ethylene terephthalate, ezinika i-PET iipropati ezikhethekileyo ezifana namandla aphezulu, ukuzinza kwe-thermal kunye neempawu ezintle zokuthintela igesi. Ezi propati zenza i-PET ilungele ukufakwa kwezicelo, ngakumbi kumzi mveliso wokutya, apho ukugcina ukutsha kokutya kunye nokwandisa ubomi beshelufu kubalulekile.
Iipropati zePET
I-PET yaziwa ngokungafihli nto, ivumela abathengi ukuba babone imveliso ngepakethe, uphawu olunqwenelekayo lokutya okuninzi. Ikwanayo namandla aphezulu-ukuya{2}}kumlinganiselo wobunzima, iwenza ukuba yomelele kwaye ibekhaphukhaphu. Ukongeza, i-PET ineempawu ze-antibacterial kwaye ayisebenzi ngokutya, okubalulekileyo ekuqinisekiseni ukhuseleko lokutya. I-oksijini yayo egqwesileyo kunye ne-carbon dioxide barrier properties iyenza ilungele ukupakisha iziselo ze-carbonated kunye nokunye ukutya okonakalayo.
Ukhuseleko kunye neMimiselo
Ukhuseleko lwe-PET njengomgangatho wokutya-isixhobo somgangatho sixhaswa zii-arhente ezininzi ezilawulayo kwihlabathi jikelele, kuquka i-US Food and Drug Administration (FDA) kunye ne-European Food Safety Authority (EFSA). Ezi arhente zavavanya i-PET kwaye zagqiba ukuba zikhuselekile ukusetyenziswa kwizicelo zoqhagamshelwano lokutya. Ngokomzekelo, i-FDA ivume ukusetyenziswa kwakhona kwe-PET kwipakethe yokutya, ngaphandle kokuba idibana nemigangatho ethile yokucoceka. Olu qwalaselo lusekwe kuphando olubanzi lwezenzululwazi kunye novavanyo olubonise uzinzo lwePET kunye-nokungasebenzi kwakhona kunye nezithako zokutya.
Ukusetyenziswa kwe-PET kwiPackaging yokutya
I-PET isetyenziswa ngokubanzi kwiindawo ezahlukeneyo zokupakisha ukutya ngenxa yokuguquguquka kwayo kunye nokusebenza okugqwesileyo. Iqhele ukusetyenziswa kwimveliso yeebhotile zesiselo, iijagi zecondiment, kwaye ilungele{1}}ukutya{2}}iitreyi zokutya. Ukongeza, i-PET ikwasetyenziselwa ukuvelisa ukutya -iibhokisi zokupakisha ze-PET ukuhlangabezana neemfuno zamacandelo ahlukeneyo oshishino lokutya.
Iibhokisi zokubhaka ze-PET zenzelwe ngokukodwa ukupakisha iimpahla ezibhakiweyo. Ukucaca kwayo kuvumela abathengi ukuba babone ngokucacileyo imveliso, ngelixa amandla ayo eqinisekisa ukuba ukupakishwa kunokumelana nokuphathwa ngexesha lokuthutha kunye nokubonisa. Iibhokisi zokubhaka ze-PET zikwanalo nokufuma -nobungqina kunye ne-oyile{3}impawu zobungqina be-oyile, ezinceda ukugcina ukutsha kunye nomgangatho wezinto ezibhakiweyo.
Iibhokisi ze-PET snack zisetyenziselwa ukupakisha iindidi ezahlukeneyo zokutya, ukusuka kumandongomane kunye neziqhamo ezomisiweyo ukuya kwiitshiphusi zeetapile kunye neekuki. Ezi bhokisi zithintela ngokufanelekileyo ukufuma kunye neoksijini, eyona nto ibalulekileyo ekuthinteleni ukonakaliswa kunye nokugcina i-crispness kunye nencasa ye-snacks. Iipropathi ezikhaphukhaphu zePET zikwayenza ibe lolona khetho lufanelekileyo lokupakishwa kwesnack ephathekayo.
Iibhokisi zokupakisha ze-PET zemifuno zibonelela ngeenzuzo ezibalulekileyo kwimveliso entsha. Ukucaca kwe-PET kuvumela abathengi ukuba bahlole ukutsha kwemifuno ngaphandle kokuvula ukupakishwa. Ngaphaya koko, i-PET inokubunjwa ibe yimilo eyahlukeneyo kunye nobukhulu, iyenze ilungele ukupakishwa kweentlobo ezahlukeneyo zemifuno, ukusuka kumagqabi aluhlaza ukuya kwiingcambu zemifuno.
Ukupakishwa kweemveliso zenyama kufuneka kwenziwe ngezinto ezinokumelana nokushisa okuphantsi kunye nokuthintela ngokufanelekileyo ukungcola. Iibhokisi zokupakisha zenyama ye-PET ziyilelwe ukuhlangabezana nezi mfuno, zibonelela ngokhuseleko olubalaseleyo kuzo zombini iinyama ezintsha kunye nezo zicutshungulwayo. Amandla ezinto eziphathekayo kunye nokucaca kuqinisekisa ukuba imveliso ikhuselwe ngokufanelekileyo kwaye itsala ingqalelo yabathengi.
Ukuqwalaselwa kokusingqongileyo
Ukongeza kwiinzuzo zayo zokusebenza, i-PET ikwathandwa ngenxa yeempawu zayo zokusingqongileyo. Yi-100% enokuphinda isetyenziswe, kwaye inkqubo yokurisayikilisha inganciphisa ngokuphawulekayo imveliso yayo{2}}enxulumene nekhabhoni. I-PET ehlaziyiweyo (i-rPET) isanda kusetyenziswa kwishishini lokupakisha ukutya, inika enye indlela ezinzileyo kwi-PET enyulu. Ukusebenzisa i-rPET akugcini nje ukusindisa izibonelelo kodwa kunciphisa ubungakanani benkunkuma yeplastiki ephela kwindawo yokulahla inkunkuma.
Ukurisayikilishwa kwakhona kunye noZinzo
Ukurisayikilishwa kwe-PET yinkqubo-esekwe kakuhle equka ukuqokelelwa, ukuhlela, ukucocwa, kunye nokulungiswa kwakhona ukuze ekugqibeleni kuyilwe iimveliso ezintsha. Le nkqubo ivaliweyo -yeluphu inceda ukunciphisa impembelelo yokusingqongileyo kwaye ixhasa uqoqosho olujikelezayo. Iinkampani ezininzi ngoku zongeza imathiriyeli esetyenzisiweyo kwi-PET yazo yokupakisha, enganyusi nje umfanekiso wazo wozinzo kodwa ikwakhawulelana nemfuno yabathengi yeemveliso ezihambelana nokusingqongileyo.
Ukuqukumbela
Ukuqukumbela, ngenene i-PET kukutya{{0}iplastiki yebakala elineengenelo ezininzi ekupakishweni kokutya. Ukhuseleko lwayo, ukuguquguquka, kunye neenzuzo zokusingqongileyo kuyenza ibe lolona khetho luphezulu kubavelisi kunye nabathengi. Iindidi ezahlukeneyo zeebhokisi zokupakisha ze-PET, ezinje ngeebhokisi ze-PET snack kunye neebhokisi zenyama ze-PET, ziyahlangabezana neemfuno ezahlukeneyo zomzi mveliso wokutya, ziqinisekisa ukuba iimveliso zihlala zintsha, zikhuselekile kwaye zinomtsalane kubathengi. Njengoko ishishini liqhubeka nokuphuhlisa, i-PET ilindeleke ukuba idlale indima enkulu ngakumbi kwizisombululo zokupakisha ezizinzileyo, ngaloo ndlela iqinisa ngakumbi isikhundla sayo njengento ebalulekileyo kwicandelo lokupakisha ukutya.
