Kunezindlela eziningi zokwelashwa kwangaphambi kokunyathelisa ubusoumshini wokunyathelisa ifilimu yepulasitiki, okungahlukaniswa ngokuvamile kube yindlela yokwelapha ngamakhemikhali, indlela yokwelapha ilangabi, indlela yokwelapha ngokukhishwa kwe-corona, indlela yokwelapha ngemisebe ye-ultraviolet, njll. Indlela yokwelapha ngamakhemikhali ikakhulukazi ukwethula amaqembu e-polar ebusweni befilimu, noma ukusebenzisa ama-reagent amakhemikhali ukususa izithasiselo ebusweni befilimu ukuthuthukisa amandla obuso befilimu.

Umgomo osebenzayo wendlela yokwelapha ilangabi ukuvumela ifilimu yepulasitiki idlule ngokushesha ngama-10-20mm ukusuka elangabini langaphakathi, bese usebenzisa izinga lokushisa lelangabi langaphakathi ukuvuselela umoya ukukhiqiza ama-free radicals, ama-ion, njll., bese usabela ebusweni befilimu ukuze wakhe izingxenye ezintsha zobuso futhi ushintshe izakhiwo zobuso befilimu ukuze kuthuthukiswe ukunamathela ku-inki. Izinto zefilimu ephathwayo kufanele ziphrintwe ngokushesha okukhulu, ngaphandle kwalokho ubuso obusha buzosuswa ngokushesha, okuzothinta umphumela wokwelapha. Ukwelashwa kwelangabi kunzima ukulawula futhi manje sekuthathelwe indawo ukwelashwa kokukhishwa kwe-corona.

Umgomo osebenzayo wokwelapha ukukhishwa kwe-corona ukudlulisa ifilimu ensimini ye-voltage, ekhiqiza ama-pulse ajikelezayo avame kakhulu aphoqa umoya ukuthi u-ionize. Ngemva kokufakwa kwe-ion, ama-ion egesi ayayithinta ifilimu ukuze andise ukujiya kwayo.

Ngesikhathi esifanayo, ama-athomu e-oxygen akhululekile ahlangana nama-molecule e-oxygen ukuze akhiqize i-ozone, futhi amaqembu e-polar akhiqizwa phezu komhlaba, okugcina kwandisa ukucindezeleka kobuso befilimu yepulasitiki, okusiza ekunamatheleni kwama-inki nama-glue.