Pali njira zambiri pre-kusindikiza pamwamba pretreatment wamakina osindikizira mafilimu apulasitiki, omwe amatha kugawidwa mu njira ya mankhwala, njira yochizira moto, njira yopangira ma corona kumaliseche, njira yochizira cheza ya ultraviolet, ndi zina zotero. Njira yothandizira mankhwala ndiyo kuyambitsa magulu a polar pamwamba pa filimuyo, kapena kugwiritsa ntchito mankhwala opangira mankhwala kuti achotse. zowonjezera pamwamba pa filimuyo kuti apititse patsogolo mphamvu ya pamwamba pa filimuyo.

Mfundo yogwiritsira ntchito njira yopangira moto ndikulola kuti filimu ya pulasitiki ipitirire 10-20mm kutali ndi lawi lamkati, ndikugwiritsa ntchito kutentha kwa lawi lamkati kuti lipangitse mpweya kupanga ma radicals aulere, ma ion, ndi zina zotero, ndikuchitapo kanthu. pamwamba pa filimu kupanga zigawo zatsopano pamwamba ndi kusintha filimuyo. pamwamba katundu kuti agwirizane ndi inki. Mafilimu opangidwa ndi filimu ayenera kusindikizidwa mwamsanga, mwinamwake malo atsopanowo adzadutsa mofulumira, zomwe zidzakhudza zotsatira za mankhwala. Chithandizo cha malawi ndizovuta kuwongolera ndipo tsopano m'malo mwake chatsitsidwa ndi corona discharge.

Mfundo yogwiritsira ntchito chithandizo cha corona discharge ndikudutsa filimuyo kudzera pamagetsi, omwe amapanga ma pulse oscillating apamwamba kwambiri omwe amakakamiza mpweya kuti ukhale ndi ioni. Pambuyo pa ionization, ma ion a gasi amasokoneza filimuyo kuti ionjezeke.

Nthawi yomweyo, maatomu a okosijeni aulere amaphatikizana ndi mamolekyu okosijeni kuti apange ozoni, ndipo magulu a polar amapangidwa pamwamba, zomwe pamapeto pake zimawonjezera kupsinjika kwa filimu yapulasitiki, yomwe imathandizira kumamatira kwa inki ndi zomatira.