Pali njira zambiri pre-kusindikiza pamwamba pretreatment wamakina osindikizira mafilimu apulasitiki, amene akhoza zambiri kugawidwa mu njira mankhwala mankhwala, lawi mankhwala njira, corona kumaliseche mankhwala njira, ultraviolet cheza mankhwala njira, etc. mankhwala mankhwala njira makamaka kuyambitsa magulu polar padziko filimu, kapena ntchito reagents mankhwala kuchotsa zina pamwamba pa filimu kusintha mphamvu pamwamba pa filimuyo.

Mfundo yogwira ntchito ya njira yamoto yamoto ndikulola kuti filimu ya pulasitiki ipitirire 10-20mm kutali ndi moto wamkati, ndikugwiritsanso ntchito kutentha kwa lawi lamkati kuti lipangitse mpweya kuti upange ma radicals aulere, ayoni, ndi zina zotero, ndikuchitapo kanthu pamwamba pa filimuyo kuti apange zigawo zatsopano za pamwamba ndikusintha 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 chasinthidwa ndikuchotsa corona.

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.