Thumba Lophikira la Zipper Lokhala ndi Oxygen Adsorbent

retort pouch ndi thumba la filimu la pulasitiki lophatikizika lomwe limatha kutenthedwa, lomwe lili ndi zabwino zonse zotengera zam'chitini ndi matumba apulasitiki osamva madzi otentha.
Chakudyacho chikhoza kusiyidwa bwino m'thumba, chosawilitsidwa ndikutenthedwa pa kutentha kwakukulu (nthawi zambiri pa 120 ~ 135 ° C), ndikutengedwa kukadya. Zatsimikiziridwa kwa zaka zoposa khumi, ndi chidebe choyenera chogulitsira. Ndizoyenera kulongedza nyama ndi soya, ndizosavuta, zaukhondo komanso zothandiza, ndipo zimatha kusunga kukoma koyambirira kwa chakudya, chomwe chimakondedwa ndi ogula.
M'zaka za m'ma 1960, dziko la United States linapanga filimu yopangidwa ndi aluminiyamu-pulasitiki kuti athetse kuyika kwa chakudya chamlengalenga. Amagwiritsidwa ntchito poyika chakudya cha nyama, ndipo amatha kusungidwa kutentha kwambiri kudzera pa kutentha kwambiri komanso kutseketsa kwapakatikati, ndi moyo wa alumali wopitilira chaka chimodzi. Ntchito ya filimu yopangidwa ndi aluminiyamu-pulasitiki ndi yofanana ndi yachitsulo, yomwe imakhala yofewa komanso yopepuka, choncho imatchedwa soft can. Pakalipano, nyama zomwe zimakhala ndi alumali wautali zimasungidwa kutentha kutentha, monga kugwiritsa ntchito zotengera zolimba, kapena kugwiritsa ntchito zitini za tinplate ndi mabotolo agalasi; ngati mukugwiritsa ntchito zoyikapo zosinthika, pafupifupi onse amagwiritsa ntchito mafilimu opangidwa ndi aluminiyamu-pulasitiki.

Pakalipano, matumba ambiri a retort padziko lapansi amapangidwa ndi njira yowuma yowuma, ndipo ochepa amatha kupangidwanso ndi njira yopangira zosungunulira kapena co-extrusion compounding. Ubwino wa kuphatikizika kowuma ndi wapamwamba kusiyana ndi kusakaniza kopanda zosungunulira, ndipo makonzedwe ndi kuphatikiza kwa zipangizo ndi zomveka komanso zowonjezereka kusiyana ndi co-extrusion compounding, ndipo ndizodalirika kugwiritsa ntchito.

Kuti akwaniritse zofunikira za thumba la retort, gawo lakunja la kapangidwe kameneka limapangidwa ndi filimu yamphamvu kwambiri ya poliyesitala, gawo lapakati limapangidwa ndi zotchingira zowala, zotchingira zolimba za aluminium, ndipo gawo lamkati limapangidwa ndi filimu ya polypropylene. Pali zigawo zitatu: PET/AL/CPP, PPET/PA/CPP;Zigawo zinayi zosanjikiza ndi PET/AL/PA/CPP.