Ngaba i-PE Laminated Paper inetyhefu? Uhlalutyo olupheleleyo lweMigangatho eGunyazisiweyo kunye neenyaniso zesayensi
Iphepha elinolwelo lwe-PE, esetyenziswa kakhulu ekupakisheni ukutya nakwiimpahla ezisetyenziswa imihla ngemihla, ibisoloko itsala ingqalelo enkulu kubathengi malunga nokhuseleko lwayo, umbuzo ophambili ugxile kwinto ethi “Ngaba Iphepha Elilaminethiweyo le-PE “Inobuthi?”. Ngokusekelwe kwimigangatho yamazwe ngamazwe neyasekhaya kunye nedatha yovavanyo lobuchwephesha, impendulo icacile: Iphepha elifakwe i-PE elihlangabezana nemigangatho yokuthobela imithetho alinabungozi emzimbeni womntu phantsi kweemeko eziqhelekileyo zokusetyenziswa; iingozi zokhuseleko zinokubakho kuphela xa imveliso ingathobeli okanye isetyenziswa kwiimeko ezingaqhelekanga.
Ulwakhiwo oluphambili lwephepha elinolwelo lwe-PE kukugquma umaleko we-polyethylene (PE) kwisiseko sephepha ngenkqubo yolwelo olunyibilikayo olushushu. I-Polyethylene ngokwayo yinto engasebenziyo eneempawu zeekhemikhali ezizinzileyo, eye yaqatshelwa ngamaziko amaninzi anegunya lamazwe ngamazwe njengezinto ezikhuselekileyo zokunxibelelana nokutya. Umgangatho wesizwe waseTshayina i-GB/T 36392-2018 “Iphepha elinolwelo kunye neBhodi yokuPakisha ukutya” ucacisa ngokucacileyo ukuba ukufuduka okupheleleyo kwe-PE enolwelo iphepha lokutyauqhagamshelwano kufuneka lube yi-≤10 mg/dm², umxholo we-heavy metal lead (Pb) kufuneka ube yi-≤3 mg/kg, i-cadmium (Cd) ≤0.2 mg/kg, kwaye akukho zinto zinobungozi ezifana nezikhanyisi ze-fluorescent eziza kubonwa. I-US FDA ilawula ngokungqongqo izixhobo zokugquma ze-PE zonxibelelwano lokutya nge-21 CFR 177.1520, ifuna umxholo wazo wezinto ezifudukayo uhlangabezane nemida yokhuseleko.
Kukho izinto ezimbini ezibalulekileyo ezichaphazela ukhuseleko lwephepha elifakwe i-PE. Okokuqala, ukuthobela imveliso: Iphepha elifakwe i-PE eliveliswe ngabavelisi abangekho sesikweni linokusebenzisa inkunkuma ephinda isetyenziswe, izinto eziluhlaza ze-PE eziphantsi, okanye longeze iiplastiki ezingavumelekanga ezifana nee-phthalates, ezibeka umngcipheko wokufuduka kwezinto ezinobungozi. Okwesibini, iimeko zokusetyenziswa: Indawo yokunyibilika kwe-PE imalunga ne-120-130℃. Xa ubushushu benkonzo budlula i-110℃ (njengokufudumeza ngqo kwi-oven ye-microwave okanye ukudibana namalangatye avulekileyo), okanye xa udibana nokutya okunamafutha obushushu obuphezulu ixesha elide, kunokukhawulezisa ukufuduka kwezinto ezinobungozi. Idatha yophando ibonisa ukuba ukonyuka kwamandla e-microwave kunye nobushushu kwandisa kakhulu izinga lokufuduka kweeplastiki kwiphepha elifakwe i-PE, apho amandla e-microwave enempembelelo ebonakalayo, enokunyusa izinga lokufuduka nge-20%.
Ukuqinisekisa ukusetyenziswa ngokukhuselekileyo, abathengi kunye nabathengi kufuneka baqwalasele amanqaku amathathu: Okokuqala, khetha iimveliso ezineziqinisekiso zokuthobela imithetho, njengephepha le-PE elinamekiweyo eliphumelele isiqinisekiso se-FDA kwaye lihlangabezana nemigangatho yochungechunge lwe-GB 4806, kwaye ujonge iingxelo zovavanyo kunye neziqinisekiso zokuthobela imithetho ezibonelelwe ngumvelisi. Okwesibini, landela iinkcukacha zokusetyenziswa: kuphephe ukufudumeza ukutya okupakishwe kwiphepha le-PE elinamekiweyo kwi-oven ye-microwave, kwaye ungalisebenzisi ukugcina ukutya okushushu okuphezulu okugqitha i-100℃ rhoqo. Okokugqibela, beka phambili iimveliso ezine I-Virgin Wood Pulp izixhobo ezisisiseko kunye neenkqubo zokulamina ezisekelwe emanzini, ezingagcini nje ngokuba nokhuseleko olungcono kodwa zikwanciphisa ukukhutshwa kwe-VOC kwaye zinobuhlobo nokusingqongileyo.
Njengomboneleli wezisombululo zemveliso yephepha oqeqeshiweyo, I-Paperjoy’sIimveliso zephepha ezifakwe i-PE laminated zamkela izinto eziluhlaza ze-PE ezikumgangatho wokutya kunye nezixhobo zesiseko se-pulp yomthi eziqinisekisiweyo yi-FSC, zilandela iinkqubo zemveliso ezicocekileyo kuyo yonke indawo, ziphumelela iziqinisekiso ezininzi ezigunyazisiweyo ezifana ne-FDA kunye ne-ISO9001, kwaye iqela ngalinye leemveliso lixhotyiswe ngeengxelo zovavanyo ezipheleleyo ukuqinisekisa ukusetyenziswa okukhuselekileyo kwiipakethe zokutya, izinto ezisetyenziswa ekuphekeni nakwezinye iimeko.
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