Isingeniso: Ukwanda Kwezikhwama Ze-PE Ziplock Ekugcinweni Kokudla Kwesimanje
Ezweni lanamuhla elisheshayo, ukulondolozwa kokudla akukhona nje ukwandisa isikhathi sokuphila—kungumkhuba obalulekile wokulondoloza impilo nokuphepha. Kusukela emakhishini amatasa asekhaya kuya kokuzijabulisa kwangaphandle, izixazululo ezilinganisela ukulula kanye nokuhlanzeka ziyadingeka kakhulu.Izikhwama ze-PE zokudla ezivaliwe(izikhwama ze-polyethylene ziplock) zivele njengokukhetha okuphezulu emakhaya nasezimbonini zokudla ngokufanayo, ngenxa yezakhiwo zazo ezihlukile zezinto ezibonakalayo. Lesi sihloko sihlola ukuthi kungani i-PE ivelele “njengomqaphi wokuphepha” ekugcinweni kokudla kanye nenani layo elingokoqobo elingenakuqhathaniswa.
Izinzuzo Zezinto Ze-PE: Ukuphepha Nokusebenza Okuhlanganisiwe
1.Isitifiketi Esingenabo Ubuthi Nezinga Lokudla
I-PE (i-polyethylene) iyona kuphela ipulasitiki esetshenziswa kabanzi eqinisekiswe yi-I-FDA yokuxhumana nokudla. Isakhiwo sayo esizinzile sama-molecule siqinisekisa ukuthi ayinazo izinto zokupholisa, i-BPA, noma amanye amakhemikhali ayingozi. Kungakhathaliseki ukuthi igcina ukudla kwezingane noma isobho lokufudumala, izikhwama ze-PE azikhiphi ubuthi, okuqinisekisa ukuphepha kusukela ekukhiqizweni kuya ekusetshenzisweni kwansuku zonke.
2.Ubuchwepheshe Bokuvala Obunezingqimba Ezintathu
Izikhwama ze-PE ziplock zineziphu ezishelelayo ezinelungelo lobunikazi kanye nokuvalwa okunobuthi kwe-isivikelo esingangenisi moya, esingangeni manzi, nesilwa namagciwane:
- Kuvimba umoya-mpilo ukuze unciphise ukubola kwezithelo (isib., ukuvimbela ukunsundu kwezithelo).
- Iyamelana nomswakama ukuze igcine izinto ezomile ziqinile.
- Imiphetho evalwe kabili ivimbela ukungcoliswa okuxubile eziqandisini.
3.Ukumelana Nokushisa Okukhulu (-40°C kuya ku-110°C)
Ukuguquguquka kwe-PE kuqinisekisa ukuthembeka ezimweni ezinzima:
- Iphephile efrijini: Ayikwazi ukuqhekeka ngisho noma ku--40°C, igcina inyama kuze kube yizinyanga ezi-3.
- Ayimelani nokushisa: Iphephile kuma-microwave ukuze incibilike (amandla aphansi/aphakathi) noma isetshenziswe njengesendlalelo esingangeni manzi sokupheka nge-sous-vide.
Ukuqhathaniswa Kokuqukethwe: Kungani i-PE Iphumelela Kakhulu Kwezinye Izindlela
| Izinto | Ukuphepha | Izindleko | Amacala Okusetshenziswa Okuhle Kakhulu |
|---|---|---|---|
| PE | Akunabuthi, kungasetshenziswa kabusha | $0.04-0.07/isikhwama | Isitoreji sansuku zonke, ukuqandisa, ukuhamba |
| I-PVC | Okusekelwe ku-chlorine, okuyingozi | $0.03-0.06/isikhwama | Izimboni (okungewona ukudla) |
| I-Silicone | Kuphephile kodwa kulula ukungcolisa | $0.70-1.10/isikhwama | Ukupheka okushisa kakhulu, sebenzisa kabusha |
Qaphela: I-PVC inqunyelwe e-EU ekupakisheni ukudla ngenxa yokukhishwa kwe-dioxin okungenzeka.
