Dukansu hasken UV (ultraviolet) da EB (electron beam) suna amfani da hasken lantarki, wanda ya bambanta da hasken zafi na IR (infrared). Duk da cewa hasken UV (Ultra Violet) da EB (Electron Beam) suna da raƙuman ruwa daban-daban, duka biyun na iya haifar da sake haɗa sinadarai a cikin na'urorin sensitizing na tawada, watau, haɗin gwiwa mai yawan ƙwayoyin halitta, wanda ke haifar da warkarwa nan take.
Sabanin haka, gyaran IR yana aiki ta hanyar dumama tawada, yana samar da sakamako da yawa:
● Tururin ɗan ƙaramin adadin mai narkewa ko danshi,
● Tausasa layin tawada da ƙaruwar kwarara, wanda ke ba da damar sha da bushewa,
● Iskar shaka ta saman da ke faruwa sakamakon dumama da hulɗa da iska,
● Tsaftace wani ɓangare na resins da mai mai yawan ƙwayoyin halitta a ƙarƙashin zafi.
Wannan ya sa gyaran IR ya zama tsarin bushewa mai fuskoki da yawa da kuma ɓangare ɗaya, maimakon tsari ɗaya, cikakke na warkarwa. Tawadar da aka yi da sinadaran da ke narkewa ta sake bambanta, domin gyaransu yana samuwa 100% ta hanyar fitar da sinadarai masu narkewa ta hanyar iskar iska.
Bambance-bambance Tsakanin Maganin UV da EB
Tsaftace UV ya bambanta da tsaftace EB musamman a zurfin shiga. Haskokin UV suna da ƙarancin shiga; misali, layin tawada mai kauri 4-5 µm yana buƙatar tsaftace a hankali tare da hasken UV mai ƙarfi. Ba za a iya warke shi da sauri ba, kamar zanen gado 12,000-15,000 a kowace awa a cikin bugu na offset. In ba haka ba, saman na iya warkewa yayin da layin ciki ya kasance ruwa - kamar ƙwai mara dahuwa - wanda hakan zai iya sa saman ya sake narkewa ya manne.
Shigar UV kuma ya bambanta sosai dangane da launin tawada. Tawada mai launin Magenta da Cyan suna shiga cikin sauƙi, amma tawada mai launin rawaya da baƙi suna shan yawancin UV, kuma tawada mai launin fari tana nuna yawan UV. Saboda haka, tsarin layukan launi a bugawa yana shafar warkarwar UV sosai. Idan tawada mai launin baƙi ko rawaya tare da yawan shan UV a saman, tawada mai launin ja ko shuɗi a ƙasa na iya warkewa ba daidai ba. Akasin haka, sanya tawada mai launin ja ko shuɗi a sama da kuma rawaya ko baƙi a ƙasa yana ƙara yiwuwar warkewa gaba ɗaya. In ba haka ba, kowane launi na iya buƙatar warkarwa daban.
A gefe guda kuma, curing na EB ba shi da wani bambanci dangane da launi wajen curing kuma yana da ƙarfin shigar ciki sosai. Yana iya shiga takarda, filastik, da sauran abubuwan da aka yi amfani da su, har ma yana warkar da ɓangarorin biyu na bugu a lokaci guda.
Shawarwari na Musamman
Tawada mai launin fari tana da matuƙar wahala wajen warkar da UV saboda tana nuna hasken UV, amma warkar da EB ba ta da wani tasiri a kan hakan. Wannan ita ce ɗaya daga cikin fa'idodin EB fiye da UV.
Duk da haka, gyaran EB yana buƙatar saman ya kasance a cikin yanayi mara iskar oxygen don cimma isasshen ingancin warkarwa. Ba kamar UV ba, wanda zai iya warkewa a cikin iska, EB dole ne ya ƙara ƙarfi fiye da ninki goma a cikin iska don cimma sakamako makamancin haka - aiki mai matuƙar haɗari wanda ke buƙatar tsauraran matakan tsaro. Mafita mai amfani ita ce a cika ɗakin warkarwa da nitrogen don cire iskar oxygen da rage tsangwama, wanda ke ba da damar warkarwa mai inganci.
A gaskiya ma, a masana'antar semiconductor, ana yin hotunan UV da fallasa su a cikin ɗakunan da ke cike da nitrogen, waɗanda ba su da iskar oxygen saboda wannan dalili.
Saboda haka, gyaran EB ya dace ne kawai ga zanen takarda mai siriri ko kuma fim ɗin filastik a aikace-aikacen shafi da bugawa. Bai dace da matse-matse masu takarda da sarƙoƙi na inji da masu riƙewa ba. Gyaran UV, akasin haka, ana iya aiki da shi a cikin iska kuma ya fi amfani, kodayake gyaran UV mara iska ba kasafai ake amfani da shi ba a aikace-aikacen bugawa ko shafawa a yau.
Lokacin Saƙo: Satumba-09-2025
