Kufunika kwa matumba a polypropylene ndi matumba kuchokera kumakampani a simenti kwakula kwambiri m'zaka zingapo zapitazi,
chifukwa cha kukula kwa mizinda ndi kukula kwa mafakitale. Makampani amitundu yosiyanasiyana akuyang'ana moyembekezera
kuchuluka kofunikira kuchokera kumakampani omanga ndi zomangamanga. Kuwonjezeka kosalekeza kwa makampani a simenti kudzawonjezeka
kufunika kwa kulongedza kwake, komanso, matumba opangidwa ndi polypropylene ndi matumba. Matumba opangidwa ndi polypropylene & matumba
kupereka mphamvu momwe akadakwanitsira ndi zinthu kasamalidwe bwino pa mayendedwe ndi kutumiza. Amakondedwa kwambiri
kwa mapaketi a simenti. M'zaka zaposachedwapa, izo zadziwika kuti chiwerengero cha polypropylene nsalu
matumba & matumba opanga ntchito mafakitale chawonjezeka kwambiri.

Kuwonjezeka kwachuma, kukwera kwa chiwerengero cha anthu, ndi ndalama zomwe anthu amapeza pambuyo pake ndizo zomwe zimayambitsa
kwa mwayi wowonjezereka m'mayiko omwe akutukuka kumene. Chifukwa cha matumba opangidwa ndi polypropylene & matumba amathandizira
zinthu zosiyanasiyana zomwe zimalumikizidwa ndi moyo watsiku ndi tsiku wamunthu zitha kuyembekezeredwa msika womwewo
matumba opangidwa ndi polypropylene & matumba akuyembekezeka kukula kwambiri panthawi yanenedweratu.

Kuphatikiza apo, kuletsa thumba la pulasitiki lafilimu yopyapyala kukukulitsa kufunikira komanso kutengera matumba ndi matumba a polypropylene.
Osewera akuluakulu akuwonjezera chidwi chawo pakukulitsa kupanga matumba ndi matumba a polypropylene kuti apambane.
monga opanga odalirika a mwambo nsalu nsalu. Komabe, kugulitsa matumba opangidwa ndi polypropylene ndi matumba m'mafakitale aulimi
akuyembekezeka kuphimba malonda muzomangamanga ndi zomangamanga. Zowopsa zachilengedwe zokhudzana ndi PE (polyethylene)
yalimbikitsa kukhazikitsidwa kwa matumba ndi matumba opangidwa ndi polypropylene ngati njira yokhazikika.

Komabe, zinthu monga chilengedwe, mphamvu ndi mtengo zimapitilirabe matumba ndi matumba opangidwa ndi polypropylene
kuchokera mumatumba ake opangidwa ndi polypropylene osapangidwa ndi laminated ndi matumba. Ndondomeko yomwe ilipo yokhudzana ndi
kupanga ndi kugwiritsa ntchito matumba ndi matumba a polypropylene akuyembekezeka kulepheretsa kukula kwa msika kumadera otukuka.