E nwere ọtụtụ ụzọ maka tupu ibipụta elu pretreatment nkeigwe eji ebipụta ihe nkiri plastik, nke enwere ike kewaa n'ozuzu ya na usoro ọgwụgwọ kemịkalụ, usoro ọgwụgwọ ọkụ, usoro ọgwụgwọ ịgbapụ corona, usoro ọgwụgwọ radieshon ultraviolet, wdg. Usoro ọgwụgwọ kemịkalụ bụ tumadi ịmebata ìgwè pola n'elu ihe nkiri ahụ, ma ọ bụ jiri reagents kemịkalụ wepụ ihe mgbakwunye n'elu ihe nkiri ahụ iji meziwanye ike elu nke ihe nkiri ahụ.

Ụkpụrụ na-arụ ọrụ nke usoro ọgwụgwọ ọkụ bụ ka ihe nkiri plastik mee ngwa ngwa gafere 10-20mm site na ọkụ dị n'ime, ma jiri okpomọkụ nke ọkụ dị n'ime mee ka ikuku na-emepụta radicals n'efu, ion, wdg, ma meghachi omume n'elu ihe nkiri ahụ iji mepụta ihe ọhụrụ dị elu ma gbanwee ihe nkiri ahụ. Njirimara nke elu iji meziwanye nrapado na ink. Ekwesịrị ibipụta ihe nkiri a na-agwọ ọrịa ozugbo enwere ike, ma ọ bụghị ya, a ga-agafe elu ọhụrụ ahụ ngwa ngwa, nke ga-emetụta mmetụta ọgwụgwọ. Ọgwụ ire ọkụ siri ike ịchịkwa ma ugbu a ejiri ọgwụgwọ mwepu corona dochie ya.

Ụkpụrụ na-arụ ọrụ nke ọgwụgwọ ịgbapụ corona bụ ịfefe ihe nkiri ahụ site na mpaghara voltaji, nke na-eme ka ọkpụkpụ oscillating dị elu na-amanye ikuku ionize. Mgbe ionization gasịrị, ion gas na-agbanye na fim ahụ iji mee ka ọ dịkwuo njọ.

N'otu oge ahụ, ikuku oxygen efu na-ejikọta ya na mkpụrụ ndụ oxygen na-emepụta ozone, a na-emepụtakwa otu polar n'elu, nke na-emecha na-eme ka esemokwu dị n'elu nke ihe nkiri plastik na-eme ka ọ dịkwuo mma na ntinye nke inks na adhesives.