M'zaka zaposachedwa, polypropylene (PP) yakhala chinthu chosunthika komanso chokhazikika, makamaka mukupanga zikwama zoluka. Imadziwika kuti ndi yolimba komanso yopepuka, PP ikukondedwa kwambiri ndi mafakitale osiyanasiyana kuphatikiza ulimi, zomangamanga ndi zonyamula.

Zopangira zamatumba opangidwa ndi polypropylene, zomwe zimakhala ndi mphamvu komanso kusinthasintha. Sikuti matumbawa amalimbana ndi chinyezi ndi mankhwala okha, amakhalanso osamva UV, kuwapangitsa kukhala abwino kusungirako kunja ndi kunyamula katundu. Kukaniza kwa UV kumatsimikizira zomwe zili mkati mwake zimatetezedwa ku kuwonongeka kwa dzuwa, kukulitsa moyo wazinthu zomwe zili mkati.

Kupita patsogolo kwakukulu kwaukadaulo wa polypropylene kunali chitukuko chabiaxially oriented polypropylene (BOPP). Kusiyanasiyana kumeneku kumapangitsa kuti zinthuzo zikhale zolimba komanso zowonekera bwino, zomwe zimapangitsa kuti zikhale zoyenera kusindikiza komanso kuyika chizindikiro. Makanema a BOPP amagwiritsidwa ntchito kwambiri pakuyika mapulogalamu kuti apereke chotchinga ku chinyezi ndi mpweya, zomwe ndizofunikira pakusunga chakudya.

Kuonjezera apo, pamene mavuto a chilengedwe akuchulukirachulukira,kukonzanso kwa polypropylenewalandira chidwi chowonjezereka. PP ndi imodzi mwa mapulasitiki omwe amatha kubwezeretsedwanso, ndipo panopo pali njira zolimbikitsira kusonkhanitsa ndi kugwiritsidwanso ntchito. Pobwezeretsanso polypropylene, opanga amatha kuchepetsa zinyalala ndikutsitsa mawonekedwe awo a carbon, potero kumathandizira tsogolo lokhazikika.

Pamene makampaniwa akupitilira kupanga zatsopano, kufunikira kwa zinthu zapamwamba, zokomera chilengedwe monga polypropylene zikuyembekezeka kukula. Ndi mawonekedwe ake apadera komanso kuthekera kobwezeretsanso, polypropylene ikuyembekezeka kutenga gawo lofunikira pakupanga njira zosungira zokhazikika, makamaka pankhani yamatumba oluka. Kusintha kumeneku sikumangopindulitsa opanga, komanso kumagwirizana ndi zoyesayesa zapadziko lonse zolimbikitsa udindo wa chilengedwe.