Fitilolin warkarwa na UV na hannu sune na'urori waɗanda ke amfani da hasken ultraviolet (UV) don haifar da halayen sinadarai, saurin warkar da sutura, adhesives, ko tawada. Babban ka'idar aikin su shine amsawar photochemical: UV radiation na takamaiman tsayin raƙuman ruwa yana faranta wa mai daukar hoto, wanda hakan yana haifar da monomers ko oligomers a cikin kayan don yin polymerize ko haɗin kai, a ƙarshe suna samar da ingantaccen shafi.
Waɗannan na'urori galibi suna amfani da fitulun tururin mercury ko tushen hasken LED, tare da fitilun mercury da ake amfani da su sosai saboda ingancin fitowar su ta UV. Lokacin da halin yanzu ke wucewa ta cikin tururin mercury a cikin fitilun, atom ɗin mercury suna farin ciki zuwa yanayin makamashi mai girma-. Daga nan sai su koma yanayin ƙasa kuma suna fitar da hasken UV tare da tsawon tsayin daka mai ƙarfi a kusa da 365nm (UVA), 385nm, ko 405nm. Wadannan raƙuman igiyoyin UV suna kunna photoinitiators (kamar benzophenone ko benzoin ether), yana sa su bazuwa da kuma haifar da radicals ko cations kyauta, wanda hakan ke haifar da polymerization na kayan guduro.
An ƙera fitilu masu warkarwa na UV na hannu don ɗaukar hoto da daidaitaccen sarrafawa, galibi yana nuna fitowar wutar lantarki mai daidaitacce da lokacin fallasa don dacewa da buƙatun warkewar kayan daban-daban. Misali, yanayin ƙanƙara - ya dace da suturar sirara, yayin da babban{2}}yanayin ƙarfi ana amfani da shi don saurin warkar da yadudduka masu kauri. Bugu da ƙari, fitilun LED UV na zamani suna ƙara maye gurbin fitilun mercury na gargajiya saboda ƙarancin kuzarinsu, tsawon rayuwarsu, da aikin mercury{4}} kyauta. Koyaya, kunkuntar kewayon tsayinsu yana buƙatar takamaiman tsarin photoinitiator.
Yayin aiwatar da aikace-aikacen, mai aiki dole ne ya tabbatar da cewa hasken UV daidai yake haskaka saman da za a warke don guje wa inuwa ko ɗigon haske wanda zai iya haifar da rashin cikakkiyar warkewa. Bugu da ƙari, saboda hasken UV yana cutarwa ga fata da idanu na ɗan adam, kayan aiki galibi suna haɗa hanyoyin aminci kamar ƙararrawa na lokaci ko masu tace gani.
A taƙaice, fitulun warkarwa na UV na hannu, ta hanyar sarrafa hasken UV daidai da ingantaccen kayan aikin warkewa, ana amfani da su sosai a aikace-aikace kamar haɗaɗɗun lantarki, dawo da hakori, da suturar masana'antu. Ci gaba da ci gaban fasaha yana haifar da haɓaka masana'antu da gyare-gyare cikin sauri.
