Chikwama Chophikira cha Zipper Foil Chokhala ndi Oxygen Adsorbent

Chikwama chobwezera ndi thumba la pulasitiki lopangidwa ndi filimu yosakanikirana lomwe limatha kutenthedwa, lomwe lili ndi ubwino wa zidebe zam'chitini komanso matumba apulasitiki otentha omwe savutika ndi madzi.
Chakudyacho chingasiyidwe chili chonse m'thumba, chotenthetsedwa ndi kutenthedwa kutentha kwambiri (nthawi zambiri pa 120 ~ 135°C), ndikuchitengera kunja kukadya. Popeza chakhala chikugulitsidwa kwa zaka zoposa khumi, ndi chidebe chabwino kwambiri chogulitsira. Ndi choyenera kulongedza nyama ndi soya, n'chosavuta, chaukhondo komanso chothandiza, ndipo chimatha kusunga kukoma koyambirira kwa chakudya, komwe ogula amakonda.
Mu zaka za m'ma 1960, dziko la United States linapanga filimu ya aluminiyamu-pulasitiki kuti ithetse kulongedza chakudya cha mumlengalenga. Imagwiritsidwa ntchito polongedza chakudya cha nyama, ndipo imatha kusungidwa kutentha kwa chipinda kudzera mu kutentha kwambiri komanso kuyeretsa kwamphamvu, ndi moyo wa aluminiyamu-pulasitiki wopitilira chaka chimodzi. Ntchito ya filimu ya aluminiyamu-pulasitiki ndi yofanana ndi ya chitini, chomwe ndi chofewa komanso chopepuka, kotero chimatchedwa chitini chofewa. Pakadali pano, zinthu za nyama zomwe zimakhala ndi moyo wautali zimasungidwa kutentha kwa chipinda, monga kugwiritsa ntchito zotengera zolimba zolongedza, kapena kugwiritsa ntchito zitini ndi mabotolo agalasi; ngati mugwiritsa ntchito kulongedza kosinthasintha, pafupifupi onse amagwiritsa ntchito mafilimu a aluminiyamu-pulasitiki.

Njira Yopangira Chikwama Chosagwira Kutentha Kwambiri Pakadali pano, matumba ambiri obweza padziko lonse lapansi amapangidwa pogwiritsa ntchito njira yowuma, ndipo ochepa amathanso kupangidwa pogwiritsa ntchito njira yowuma yopanda zosungunulira kapena njira yowuma yokhala ndi zosungunulira. Ubwino wa kuwiritsa kowuma ndi wapamwamba kuposa wa kuwiritsa kopanda zosungunulira, ndipo kapangidwe ndi kuphatikiza kwa zipangizo ndi koyenera komanso kokulirapo kuposa kuwiritsa kophatikizana, ndipo ndikodalirika kugwiritsa ntchito.

Kuti zigwirizane ndi zofunikira za thumba lobwezera, gawo lakunja la kapangidwe kake limapangidwa ndi filimu ya polyester yolimba kwambiri, gawo lapakati limapangidwa ndi zojambulazo za aluminiyamu zoteteza kuwala, zothina mpweya, ndipo gawo lamkati limapangidwa ndi filimu ya polypropylene. Pali mapangidwe atatu: PET/AL/CPP, PPET/PA/CPP; Kapangidwe ka magawo anayi ndi PET/AL/PA/CPP.