Yuav luag ib xyoo caum tom qab lawv cov kev taw qhia, UV LED curable inks tau txais yuav ntawm qhov nrawm nrawm los ntawm cov ntawv hloov pauv. Cov txiaj ntsig ntawm tus number case dhau 'paj' mercury UV inks - zoo dua thiab kho sai dua, txhim kho kev ruaj khov thiab txo nqi khiav - tau nkag siab ntau dua. Tsis tas li ntawd, thev naus laus zis tau nkag mus tau yooj yim dua li cov tuam txhab xovxwm muab kom suav nrog ntau qhov dav ntawm lub neej ntev ntawm lawv cov kab.
Tsis tas li ntawd, muaj kev txhawb siab ntau dua rau cov neeg hloov pauv los txiav txim siab hloov mus rau LED, vim tias muaj kev pheej hmoo thiab cov nqi ntawm kev ua li ntawd txo qis. Qhov no tau ua kom yooj yim los ntawm kev tuaj txog ntawm lub cim tshiab ntawm 'dual kho' inks thiab coatings uas tuaj yeem khiav hauv ob qho tib si LED thiab mercury teeb, tso cai rau cov neeg hloov pauv kom siv cov thev naus laus zis hauv cov kauj ruam, tsis yog sai sai.
Qhov sib txawv tseem ceeb ntawm cov teeb pom kev zoo mercury thiab lub teeb LED yog lub wavelengths emissions rau kho kom muaj qhov chaw. Lub teeb mercury-vapor radiates lub zog thoob plaws ib spectrum ntawm 220 thiab 400 nanometers (nm), thaum LED teeb muaj ib tug nqaim wavelength ntawm li 375nm thiab 410nm thiab peaking ntawm ib ncig ntawm 395nm.
UV LED inks yog kho tib yam li cov pa UV inks, tab sis yog rhiab heev rau lub teeb nqaim ntawm lub teeb. Lawv txawv ntawm ib leeg, yog li ntawd, los ntawm pab pawg neeg ntawm photoinitiators siv los pib kho cov tshuaj tiv thaiv; cov pigments, oligomers thiab monomers siv yog tib yam.
UV LED curing muaj zog ib puag ncig, zoo, thiab kev nyab xeeb zoo dua li kev kho kom zoo. Cov txheej txheem siv tsis muaj mercury lossis ozone, yog li tsis muaj cov txheej txheem rho tawm yuav tsum tau tshem tawm ozone los ntawm ib ncig ntawm lub tshuab luam ntawv.
Nws tseem muaj cov txiaj ntsig mus ntev. Lub teeb ci LED tuaj yeem qhib thiab tawm yam tsis xav tau lub sijhawm sov lossis txias, muab kev ua haujlwm zoo txij li lub sijhawm nws hloov mus. Tsis tas yuav tsum muaj cov shutters los tiv thaiv lub substrate yog tias lub teeb raug kaw.
Post lub sij hawm: Sep-07-2024
