Nyob rau xyoo tas los no, cov txheej txheem luam ntawv tau nce qib ntau heev. Ib qho kev txhim kho tseem ceeb yog kev luam ntawv UV, uas siv lub teeb ultraviolet rau kev kho cov kua mem. Niaj hnub no, kev luam ntawv UV yooj yim dua vim tias cov tuam txhab luam ntawv uas nce qib ntau dua tau siv cov thev naus laus zis UV. Kev luam ntawv UV muaj ntau yam txiaj ntsig, los ntawm ntau yam khoom siv ntxiv mus rau lub sijhawm tsim khoom tsawg dua.
Kev Siv Tshuab UV
Raws li nws lub npe qhia, kev luam ntawv UV siv thev naus laus zis ultraviolet los kho cov kua xim tam sim ntawd. Txawm hais tias cov txheej txheem tiag tiag zoo ib yam li kev luam ntawv offset ib txwm muaj, muaj qhov sib txawv tseem ceeb ntawm cov kua xim nws tus kheej, nrog rau txoj kev ziab nws.
Cov luam ntawv offset ib txwm siv cov kua xim uas muaj cov kuab tshuaj uas qhuav qeeb los ntawm kev ua pa, muab sijhawm rau lawv nqus rau hauv daim ntawv. Cov txheej txheem nqus yog qhov laj thawj uas cov xim tuaj yeem tsis ci ntsa iab. Cov tshuab luam ntawv hu qhov no ua qhov qhuav rov qab thiab pom tseeb dua ntawm cov khoom tsis muaj txheej.
Cov txheej txheem luam ntawv UV muaj cov kua mem tshwj xeeb uas tau tsim los kom qhuav thiab kho thaum raug lub teeb ultraviolet hauv lub tshuab luam ntawv. Cov kua mem UV tuaj yeem ua kom tawv dua thiab ci dua li cov kua mem offset ib txwm muaj vim tias yuav luag tsis muaj qhov rov qab qhuav. Thaum luam tawm lawm, cov ntawv tuaj txog hauv lub thawv xa khoom tam sim ntawd npaj rau kev ua haujlwm tom ntej. Qhov no ua rau muaj kev ua haujlwm zoo dua thiab feem ntau tuaj yeem txhim kho lub sijhawm tig rov qab, nrog cov kab huv dua thiab tsawg dua qhov muaj peev xwm ntawm kev smudging.
Cov txiaj ntsig ntawm UV luam ntawv
Cov Khoom Siv Luam Ntawv Ntau Ntxiv
Cov ntawv ua los ntawm cov khoom siv feem ntau yog siv rau cov khoom uas xav tau cov khoom siv uas tiv taus dej noo rau kev ntim khoom thiab daim ntawv lo. Vim tias cov ntawv ua los ntawm cov khoom siv thiab cov yas tiv taus kev nqus, kev luam ntawv offset ib txwm siv sijhawm qhuav ntev dua. Ua tsaug rau nws cov txheej txheem ziab sai, kev luam ntawv UV tuaj yeem ua raws li ntau yam khoom siv uas feem ntau tsis haum rau cov kua mem ib txwm. Tam sim no peb tuaj yeem luam tawm tau yooj yim rau ntawm cov ntawv ua los ntawm cov khoom siv, nrog rau cov yas. Qhov no kuj pab tiv thaiv kev muaj peev xwm ua rau muaj kev puas tsuaj lossis kev sib txhuam, ua kom ntseeg tau tias muaj tus qauv tsim zoo nkauj yam tsis muaj qhov tsis zoo.
Kev Ruaj Khov Ntau Ntxiv
Thaum luam ntawv nrog cov xim offset ib txwm muaj, cov ntawv tshaj tawm CMYK, piv txwv li, cov xim xws li daj thiab magenta feem ntau yuav ploj mus tom qab raug tshav ntuj ntev. Qhov no yuav ua rau daim ntawv tshaj tawm zoo li xim dub thiab xiav duo-tone, txawm tias nws yog xim puv nkaus. Cov ntawv tshaj tawm thiab lwm yam khoom raug tshav ntuj tam sim no tau tiv thaiv los ntawm cov kua mem uas raug kho los ntawm lub teeb ultraviolet. Qhov tshwm sim yog cov khoom siv ruaj khov dua thiab tiv taus kev ploj mus ua kom kav ntev dua li cov ntaub ntawv luam tawm ib txwm muaj.
Kev Luam Ntawv Zoo Rau Ib Puag Ncig
Kev luam ntawv UV kuj yog ib puag ncig zoo. Cov kua luam ntawv UV tsis muaj cov tshuaj lom, tsis zoo li qee cov kua ib txwm muaj. Qhov no txo qhov kev pheej hmoo ntawm kev tso tawm cov organic compounds (VOCs) thaum lub sijhawm ua pa. Ntawm Premier Print Group, peb ib txwm nrhiav txoj hauv kev uas peb txo qis peb qhov cuam tshuam rau ib puag ncig. Qhov laj thawj no ib leeg yog ib qho ntawm cov laj thawj vim li cas peb siv kev luam ntawv UV hauv peb cov txheej txheem.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-05-2023
