Umukara utagira amajwi polipropilene itapini itapi yabugenewe yo kugenzura amajwi.Igaragaza ikoreshwa ryibikoresho bya polypropilene hamwe nigishushanyo mbonera, gishobora kugira amajwi meza yo gukumira, kandi ibara rituje kandi ryirabura ryikirere.Imiterere rusange iroroshye kandi ihanitse, ikwiranye na sitidiyo nini, sitidiyo zifata amajwi, firime na televiziyo nibindi bihe.