Zomangira pulasitiki, kapena PP, zakhala njira yanthawi zonse yosungira chakudya ndi zakumwa kukhala zotetezeka, zoyera komanso zotetezeka pamene zikutumizidwa kapena kusungidwa. Chingwe chopepuka ichi chopangidwa kuchokera ku polypropylene chimagwira ntchito bwino m'malo osiyanasiyana olongedza ndipo chimakwaniritsa miyezo yapamwamba yaukhondo yofunikira
Oyang'anira zogula nthawi zambiri amafunsa ngati chingwe chobiriwira, chakuda, kapena choyera cha PP chimachita bwino, koma yankho lake ndi lovuta kwambiri kuposa mtundu wokha. Ngakhale mtundu ukhoza kukhudza zinthu zina monga kukana kwa UV ndi kukhazikika kwamafuta, sizimatsimikizira mwachindunji kulimba kwa chingwe kapena overa.
Chingwe cha polypropylene PP ndi gawo lofunikira pakulongedza mafakitale, koma mitengo imasiyanasiyana kutengera wogulitsa ndi tsatanetsatane wa dongosolo. Kumvetsetsa zinthu zovuta zomwe zimakhudza mtengo wamtengo wapatali nthawi zambiri zimakhala kusiyana pakati pa kupanga chisankho chogula mwanzeru ndikupanga kulakwitsa kwakukulu. Proc
Oyang'anira zogula akamayang'ana zosankha zomangirira, kusankha pakati pa chingwe cha PP ndi lamba la PET kumakhudza kwambiri momwe ntchito zimayendera komanso momwe zimawonongera ndalama. Chingwe cha PP ndi chotsika mtengo, chosinthika, komanso chopepuka, chomwe chimapangitsa kuti chikhale choyenera pa ntchito zopepuka kapena zapakatikati monga kulongedza makatoni ndi palletizing. Chithunzi cha PET