Ngokuvamile, ukuphrinta kwe-UV kuhilela izigaba ezilandelayo zobuchwepheshe:
1. Imishini Yomthombo Wokukhanya Kwe-UV
Lokhu kuhlanganisa izibani, izibonisi, izinhlelo zokulawula amandla, kanye nezinhlelo zokulawula izinga lokushisa (ukupholisa).
(1) Izibani
Izibani ze-UV ezisetshenziswa kakhulu izibani zomusi we-mercury, eziqukethe i-mercury ngaphakathi kwepayipi. Kwezinye izimo, kunezelwa ezinye izinsimbi ezifana ne-gallium ukuze kulungiswe ukuphuma kwe-spectral.
Izibani ze-metal-halide kanye nezibani ze-quartz nazo zisetshenziswa kabanzi, futhi eziningi zisathengwa kwamanye amazwe.
Ububanzi bobude be-wavelength obukhishwa izibani ze-UV ezikhanyisayo kumele bube phakathi kuka-200–400 nm ukuze busebenze kahle ekukhanyeni.
(2) Ama-Reflector
Umsebenzi oyinhloko wesibukisi ukubuyisela emuva imisebe ye-UV endaweni engaphansi komhlaba ukuze kwandiswe ukusebenza kahle kokushisa (UV Tech Publications, 1991). Enye indima ebalulekile ukusiza ukugcina izinga lokushisa lokusebenza kwesibani elifanele.
Ama-reflector ngokuvamile enziwe nge-aluminium, futhi ngokuvamile i-reflection iyadingeka ukuthi ifinyelele cishe ku-90%.
Kunezinhlobo ezimbili eziyisisekelo zokubonisa ukukhanya: okugxile (okuyi-elliptical) kanye nokungagxili (okuyi-parabolic), kanye nokwehluka okwengeziwe okuthuthukiswe abakhiqizi.
(3) Izinhlelo Zokulawula Amandla
Lezi zinhlelo ziqinisekisa ukuthi umphumela we-UV uhlala uzinzile, ugcina ukusebenza kahle kokupholisa kanye nokuvumelana ngenkathi uzivumelanisa nesivinini sokuphrinta esihlukile. Ezinye izinhlelo zilawulwa ngogesi, kanti ezinye zisebenzisa ukulawulwa kwe-microcomputer.
2. Izinhlelo Zokupholisa
Ngenxa yokuthi izibani ze-UV azikhiphi nje kuphela imisebe ye-UV kodwa futhi zikhipha nokushisa kwe-infrared (IR), imishini isebenza emazingeni okushisa aphezulu (isibonelo, izinga lokushisa lobuso bezibani ezisekelwe kwi-quartz lingafinyelela ema-degree Celsius angamakhulu amaningana).
Ukushisa okweqile kunganciphisa isikhathi sokuphila kwemishini futhi kungabangela ukwanda noma ukuguqulwa kwe-substrate, okuholela emaphutheni okubhalisa ngesikhathi sokuphrinta. Ngakho-ke, izinhlelo zokupholisa zibaluleke kakhulu.
3. Uhlelo Lokunikeza Uyinki
Uma kuqhathaniswa noyinki ojwayelekile we-offset, uyinki we-UV une-viscosity ephezulu kanye nokungqubuzana okukhulu, futhi angabangela ukuguguleka ezingxenyeni zomshini njengezingubo zokulala nama-roller.
Ngakho-ke, ngesikhathi sokuphrinta, uyinki osemthonjeni kufanele uqhutshwe njalo, futhi ama-roller nezingubo zokulala ohlelweni lweyinki kufanele kube izinto eziklanyelwe ngqo ukuphrinta kwe-UV.
Ukuze kugcinwe uzinzo lweyinki futhi kuvinjelwe izinguquko ze-viscosity ezihlobene nokushisa, izinhlelo zokulawula izinga lokushisa ezijikelezayo nazo zibalulekile.
4. Izinhlelo Zokushabalalisa Ukushisa kanye Nokukhipha Umoya
Lezi zinhlelo zisusa ukushisa okweqile kanye ne-ozone ekhiqizwa ngesikhathi sokwenziwa kwe-ink polymerization kanye nokuqiniswa.
Ngokuvamile zakhiwe ngenjini yokukhipha umoya kanye nesistimu yokudonsa umoya.
[Ukukhiqizwa kwe-ozone kuhlotshaniswa kakhulu namaza e-UV angaphansi kuka-240 nm; izinhlelo eziningi zesimanje zinciphisa i-ozone ngemithombo ehlungiwe noma ye-LED.]
5. Uyinki Wokuphrinta
Ikhwalithi yeyinki iyisici esibaluleke kakhulu esithinta imiphumela yokuphrinta kwe-UV. Ngaphezu kokuthonya ukukhiqizwa kabusha kombala kanye nobubanzi, ukuphrinta kweyinki kunquma ngqo ukunamathela, amandla, kanye nokumelana nokuguguleka kokuphrinta kokugcina.
Izakhiwo zama-photoinitiators nama-monomers ziyisisekelo ekusebenzeni.
Ukuqinisekisa ukunamathela okuhle, lapho uyinki we-UV omanzi uthinta i-substrate, ukucindezelwa kobuso be-substrate (dynes/cm) kumele kube phezulu kunokweyinki (Schilstra, 1997). Ngakho-ke, ukulawula ukucindezelwa kobuso be-inki kanye ne-substrate kuwubuchwepheshe obubalulekile ekuphrinteni kwe-UV.
6. Amadivayisi Okulinganisa Amandla E-UV
Ngenxa yokuthi izici ezifana nokuguga kwezibani, ukushintshashintsha kwamandla, kanye nezinguquko zesivinini sokuphrinta kungathinta ukuwohloka, kubalulekile ukuqapha nokugcina ukukhishwa kwamandla e-UV okuzinzile. Ngakho-ke, ubuchwepheshe bokulinganisa amandla e-UV budlala indima ebalulekile ekuphrinteni kwe-UV.
Isikhathi sokuthunyelwe: Disemba-30-2025
