Xa usonga imveliso entsha okanye eseleyo nge-PVC cling film, mhlawumbi awucingi ngekhemikhali entsonkothileyo egcina elo phepha leplastiki lithambile, libonakala, kwaye likhuselekile ekutyeni. Kodwa emva kwayo yonke iroll ye-PVC cling film ekumgangatho ophezulu kukho into ebalulekileyo:Isiqinisi sePVCEzi zongezo zingadunyiswanga zidlala indima ebalulekileyo ekuthinteleni ukuwohloka, ukuqinisekisa ukhuseleko, kunye nokugcina ukusebenza kakuhle—okuzenza zibe zibalulekile ekufakweni kokutya.
Kutheni iiFilimu ze-PVC Cling zifuna ii-Stabilizers ezikhethekileyo
I-PVC ayizinzanga ngokwemvelo xa ivezwa kubushushu, ukukhanya, kunye noxinzelelo loomatshini ngexesha lokucubungula nokusetyenziswa kwayo. Ngaphandle kokuzinza okufanelekileyo, i-PVC iyawohloka, ikhuphe i-hydrochloric acid eyingozi kwaye ibangele ukuba izinto zibe buthathaka, zitshintshe umbala, kwaye zingakhuseleki ekudibaneni nokutya.
Ngokukodwa kwiifilimu ze-cling, imingeni ikhethekile:
• Bafuna ukuvezwa okungaqhelekanga ukuze babonise iimveliso zokutya
• Kufuneka ugcine ukuguquguquka kumaqondo obushushu ahlukeneyo
• Imfuneko yokumelana nokuwohloka ngexesha lokucubungula amaqondo obushushu aphezulu
• Kufuneka ulandele imigaqo engqongqo yokhuseleko lokutya
• Zifuna uzinzo lwexesha elide ngexesha lokugcina nokusetyenziswa
Iimfuneko eziphambili ze-Food-Grade PVC Stabilizers
Ayizizo zonke iziqinisi zePVC ezifanelekileyo ukusetyenziswa ekunxibelelaneni nokutya. Ezona ziqinisi zilungileyo zeefilimu zePVC kufuneka zihlangabezane nemigangatho engqongqo:
Ukuthotyelwa kweMithetho
Iziqinisi zePVC ezikumgangatho wokutya kufuneka zilandele imigaqo engqongqo kwihlabathi liphela. E-United States, iCandelo 177 le-FDA's 21 CFR lilawula izixhobo zeplastiki ekudibaneni kokutya, linciphisa izongezo ezifana neephthalates zingadluli kwi-0.1% kwiimveliso zePVC. Imithetho yaseYurophu (EU 10/2011) ngokufanayo ithintela izinto ezinobungozi kwaye ibeka imida yokufuduka ukuqinisekisa ukhuseleko lwabathengi.
Ukwenziwa kweMichiza Engeyiyo iTyhefu
Iziqinisi zemveli ezisekelwe kwilothe, ezaziqhelekile ekucutshungulweni kwePVC, ziye zancitshiswa kakhulu ekusetyenzisweni kokutya ngenxa yeengxaki zetyhefu.iziqinisi zokutya ezikumgangatho wokutyaZiphephe ngokupheleleyo izinto eziqinileyo, ugxile kwezinye iindlela ezikhuselekileyo.
Uzinzo lobushushu
Ukuveliswa kwefilimu ye-cling kubandakanya iinkqubo zokukhupha ubushushu obuphezulu kunye neenkqubo zokulungisa iikhalenda ezinokubangela ukonakala kwe-PVC. Iziqinisi ezisebenzayo kufuneka zibonelele ngokhuseleko oluqinileyo lobushushu ngexesha lokwenziwa kwefilimu ngelixa zigcina ukuthembeka kwayo.
Ukugcinwa koBucala
Ngokungafaniyo neemveliso ezininzi zePVC, iifilimu zokuncamathela zifuna ukucaca okugqwesileyo. Ezona zigcina-zinzo zibalaseleyo zisasazeka ngokulinganayo ngaphandle kokudala inkungu okanye ukuchaphazela iimpawu zokukhanya.
Ukuhambelana nezinye izongezo
Izinzisi-mzimba kufuneka zisebenze ngokuhambelanayo neeplastiki, ii-lubricants, kunye nezinye izongezo kwi-cling film formulation ukuze zigcine ukusebenza kakuhle.
Iinketho eziphambili zeStabilizer kwiifilimu ze-PVC Cling
Nangona kukho iikhemistri ezahlukeneyo zokuzinzisa, kukho iintlobo ezimbini ezivele njengezona zikhetho ziphambili kwiifilimu zokuncamathela ezikumgangatho wokutya:
Izinzisi zeCalcium-Zinc (Ca-Zn)
Iziqinisi zeCalcium-zincziye zaba ngumgangatho ophambili wokusetyenziswa kwe-PVC yomgangatho wokutya. Ezi zongezo zingenabungozi, ezinobuhlobo nokusingqongileyo zibonelela ngokulinganisela okugqwesileyo kokusebenza kunye nokhuseleko:
Isiqinisi se-calcium zinc sisixhobo esingenabungozi esingenazo izinyithi eziyingozi kunye nezinye iikhemikhali eziyingozi, nto leyo eyenza ukuba sibe luhlobo olutsha lwesiqinisi esinobuhlobo nokusingqongileyo se-PVC.
Iingenelo eziphambili ziquka:
• Uzinzo oluhle kakhulu lobushushu ngexesha lokucubungula
• Imozulu ilungile kwaye iyamelana nokuba tyheli
• Ukuthambisa okusebenzayo kakhulu okuphucula isantya sokuphuma
• Ukuhambelana okuhle ne-PVC resin kunye nezinye izongezo
• Ukuthobela imithetho ephambili yokunxibelelana kokutya
• Ubuchule bokugcina ulubala kwiifilimu ezincinci
Iziqinisi ze-UV zoKhuseleko oluNcinci
Nangona zingezizo iziqinisi zobushushu eziphambili, iziqinisi ze-UV zidlala indima ebalulekileyo ekugcineni ukuthembeka kwefilimu yokubambelela ngexesha lokugcinwa nokusetyenziswa. Ezi zongezo zibaluleke kakhulu kwiifilimu zokubambelela ezisetyenziswa ekupakishweni okucacileyo okuvezwe ekukhanyeni.
Indlela yokukhetha i-Stabilizer efanelekileyo kwisicelo sakho sefilimu yokubambelela
Ukukhetha i-stabilizer efanelekileyo kufuna ukulinganisela izinto ezininzi:
• Ukuthobela iMithetho:Qinisekisa ukuba uyayithobela imigangatho yokhuseleko lokutya yengingqi (FDA, EU 10/2011, njl.njl.) kwiimarike zakho ekujoliswe kuzo.
• Iimfuno zokucubungula:Cinga ngeemeko zakho ezithile zokwenza—iinkqubo zobushushu obuphezulu zinokufuna uzinzo oluqinileyo lobushushu.
• Iimfuno zeNtsebenzo:Vavanya iimfuno zokucaca, iimfuno zokuguquguquka, kunye nexesha elilindelekileyo lokugcinwa kweemveliso zakho zefilimu yokuncamathela.
• Ukuhambelana:Qinisekisa ukuba isizinzisi sisebenza kakuhle neeplastiki zakho kunye nezinye izongezo.
• Uzinzo:Khangela izinto ezizinzisa izinto ezixhasa iinjongo zokusingqongileyo ngokusebenzisa ubuthi obuphantsi kunye nefuthe eliphantsi lokusingqongileyo.
• Ukusebenza kakuhle kweendleko:Ukulinganisela iingenelo zokusebenza ngokuchasene neendleko zokwenziwa, ucinga zombini uxinaniso lokongeza kunye neenzuzo zokusebenza kakuhle.
Ikamva le-PVC Stabilizers kwi-Food Packaging
Njengoko imfuno yabathengi yokupakisha ukutya okukhuselekileyo nokusebenza kakuhle iqhubeka ikhula, iteknoloji yokuqinisa ukutya yePVC iya kutshintsha ukuze ihlangabezane nemingeni emitsha. Singalindela ukubona oku kulandelayo:
• Uphuculo olongezelelekileyo ekuzinzeni kobushushu xa kuncitshiswa amanqanaba ongezelelweyo asezantsi
• Iifomyula eziphuculweyo ezixhasa iinjongo zokuphinda kusetyenziswe izinto ezintsha kunye noqoqosho olujikelezayo
• Iingxube ezintsha ze-stabilizer ezilungiselelwe ukusetyenziswa kwefilimu ethile yokuncamathela
• Iindlela zovavanyo eziphucukileyo ukuqinisekisa ukhuseleko kunye nokusebenza
• Ukuqhubeka nokuguquka kwemithetho okuqhuba uphuhliso kwezinye iindlela ezingezizo iityhefu
Utshintsho kwicandelo lesayensi yezinto ezisetyenziswayo luvula amathuba amatsha okugcina izinto ezizinzileyo zePVC, uphando lugxile ekuphuhliseni izisombululo ezisebenzayo nezizinzileyo zokusetyenziswa kokupakisha ukutya.
Ukutyala imali kwiZinzisi zoMgangatho kwiiFilimu zeCling eziBalaseleyo
Isiqinisi sePVC esifanelekileyo sibalulekile ekuveliseni iifilimu zokuncamathela ezisemgangathweni ophezulu, ezikhuselekileyo, nezihambelanayo zokupakisha ukutya. Nangona iziqinisi zecalcium-zinc okwangoku zikhokela kwimarike yokulinganisela kwazo okugqwesileyo kokhuseleko kunye nokusebenza, uphuhliso oluqhubekayo luthembisa izisombululo ezingcono ngakumbi kwixesha elizayo.
Ngokubeka phambili ukuthotyelwa kwemithetho, iimpawu zokusebenza, kunye nokuqwalaselwa kokusingqongileyo, abavelisi banokukhetha izinto ezizinzisayo ezingapheleli nje ekuhlangabezaneni neemfuno zangoku kodwa ezibeka iimveliso zabo kwimpumelelo yexesha elizayo kwimarike eguquka ngokukhawuleza.
Njengoko imakethi ye-PVC stabilizer iqhubeka nokukhula kwayo okuzinzileyo, ukubaluleka kwezi zongezo zibalulekileyo ekuqinisekiseni ukhuseleko kunye nokusebenza kweefilimu zokuncamathela zokutya kuya kwanda kuphela—okwenza ukhetho lwe-stabilizer olunolwazi lube lubaluleke ngakumbi kunangaphambili.
Ixesha leposi: Sep-22-2025