Ua ntej tshaj plaws, ob qho tib si Aqueous (ua los ntawm dej) thiab UV coatings tau siv dav hauv Kev Lag Luam Graphics Arts ua cov tsho tiv no sib tw. Ob qho tib si muab kev txhim kho zoo nkauj thiab kev tiv thaiv, ntxiv tus nqi rau ntau yam khoom luam tawm.
Qhov sib txawv ntawm Cov Txheej Txheem Kho
Feem ntau, cov txheej txheem ziab lossis kho ntawm ob qho no sib txawv. Cov txheej txheem dej qhuav thaum cov khoom sib xyaw ua ke (txog li 60% dej) raug yuam kom ua pa lossis ib feem raug nqus mus rau hauv cov khoom siv uas muaj qhov dej. Qhov no tso cai rau cov khoom khov kho kom sib sau ua ke los ua ib daim zaj duab xis nyias, qhuav rau qhov kov.
Qhov txawv yog cov txheej UV yog tsim los ntawm kev siv 100% cov khoom khov uas yog kua (tsis muaj cov khoom uas yaj tau) uas kho lossis photopolymerize hauv qhov kev sib txuas photochemical uas tsis muaj zog thaum raug rau lub teeb ultraviolet luv luv. Cov txheej txheem kho ua rau muaj kev hloov pauv sai, hloov cov kua mus ua khoom khov tam sim ntawd (cross-linking) tsim cov zaj duab xis qhuav tawv.
Qhov sib txawv ntawm Cov Khoom Siv Daim Ntawv Thov
Hais txog cov khoom siv thov, ob qho tib si cov tshuaj pleev xim aqueous thiab UV uas tsis muaj viscosity tuaj yeem siv tau zoo siv cov inker kawg hauv cov txheej txheem luam ntawv kua flexo & gravure. Qhov sib txawv, cov txheej txheem luam ntawv web thiab daim ntawv pub mis offset litho paste yuav tsum tau ntxiv cov txheej txheem nias-kawg kom siv cov txheej txheem aqueous lossis UV qis viscosity. Cov txheej txheem tshuaj ntsuam kuj tseem siv los siv cov txheej txheem UV.
Cov tshuab luam ntawv flexo thiab gravure muaj cov kua nplaum thiab cov kua dej uas tsim nyog uas twb tau teeb tsa lawm kom qhuav cov xim pleev xim uas muaj dej. Cov txheej txheem luam ntawv uas siv cua sov los ntawm web offset kuj tau pom tias muaj peev xwm ziab kom qhuav cov xim pleev xim uas muaj dej. Txawm li cas los xij, nws yog lwm yam teeb meem thaum xav txog cov txheej txheem luam ntawv litho uas siv daim ntawv pub. Ntawm no kev siv cov xim pleev xim uas muaj dej yuav tsum tau teeb tsa cov khoom siv ziab tshwj xeeb uas muaj cov khoom siv infrared emitters, riam cua kub, thiab cov khoom siv rho tawm cua.
Qhov Txawv ntawm Lub Sijhawm Qhuav
Kev xa khoom ntev kuj tseem pom zoo kom muab sijhawm ziab ntxiv. Thaum xav txog kev ziab (kho) ntawm UV coatings lossis inks, qhov sib txawv yog nyob rau hauv hom khoom siv ziab tshwj xeeb (kho) xav tau. UV curing systems feem ntau muab lub teeb UV los ntawm lub teeb mercury arc nruab nrab, lossis LED qhov chaw nrog lub peev xwm txaus los kho tau zoo ntawm qhov ceev ntawm kab xav tau.
Cov txheej txheem dej qhuav sai thiab yuav tsum tau ua tib zoo saib xyuas thaum lub sijhawm nias tsis ua haujlwm. Qhov txawv yog cov txheej txheem UV tseem qhib rau ntawm lub tshuab nias ntev npaum li tsis raug lub teeb UV. Cov kua mem UV, cov txheej txheem, thiab cov kua roj vanish tsis qhuav lossis txhaws cov hlwb anilox. Tsis tas yuav ntxuav ntawm kev nias lossis dhau hnub so, txo lub sijhawm tsis ua haujlwm thiab pov tseg.
Ob qho tib si aqueous & UV coatings tuaj yeem muab kev pom tseeb siab, thiab ntau yam kev ua tiav los ntawm kev ci ntsa iab siab, los ntawm satin mus rau matte. Qhov txawv yog UV coatings tuaj yeem muab kev ua tiav ci ntsa iab siab dua nrog qhov tob pom tseeb.
Qhov sib txawv ntawm cov txheej txheej
Cov txheej txheej dej feem ntau muaj kev tiv taus kev sib txhuam, kev sib txhuam, thiab kev thaiv. Cov khoom txheej txheej dej tshwj xeeb kuj tseem tuaj yeem ua rau muaj roj, cawv, alkali, thiab dej noo. Qhov txawv yog cov txheej txheej UV feem ntau, mus ib kauj ruam ntxiv uas muab kev tiv taus kev sib txhuam, kev sib txhuam, kev thaiv, tshuaj lom neeg, thiab cov khoom zoo dua.
Cov txheej txheem thermoplastic aqueous rau cov ntawv litho pub dawb tau tsim los rau hauv kab ntub dej hla cov kua nplaum qhuav qeeb, txo qis lossis tshem tawm qhov xav tau cov hmoov tsuag siv los tiv thaiv cov kua nplaum tsis sib haum. Qhov kub ntawm pawg yuav tsum tau tswj hwm hauv qhov ntau ntawm 85-95®F kom tsis txhob mos ntawm cov txheej qhuav ntawm qhov kub siab dua, thiab qhov muaj peev xwm rau kev teeb tsa & thaiv. Qhov zoo, kev tsim khoom tau zoo dua vim tias cov ntawv coated tuaj yeem ua tiav sai dua.
Qhov txawv yog cov tshuaj pleev xim UV uas siv rau hauv kab ntub dej hla cov kua xim UV ob qho tib si kho tau thaum nias, thiab cov ntawv tuaj yeem ua tiav ntxiv tam sim ntawd. Thaum xav txog kev siv cov tshuaj pleev xim UV hla cov kua xim litho ib txwm muaj, cov tshuaj pleev xim aqueous raug pom zoo kom kaw thiab lo rau cov kua xim kom muab lub hauv paus rau cov tshuaj pleev xim UV. Cov tshuaj pleev xim sib xyaw UV/ib txwm muaj tuaj yeem siv los tshem tawm qhov xav tau cov tshuaj pleev xim.
Kev Cuam Tshuam Rau Tib Neeg, Khoom Noj, thiab Ib puag ncig
Cov txheej txheej dej muaj huab cua huv, VOC qis, tsis muaj cawv, tsis muaj ntxhiab tsw, tsis kub hnyiab, tsis muaj tshuaj lom, thiab tsis ua rau muaj kuab paug. Ib yam li ntawd, 100% cov txheej txheej UV khov kho tsis muaj cov pa phem, tsis muaj VOC, thiab tsis kub hnyiab. Qhov txawv yog cov txheej txheej UV ntub tsis kho muaj cov khoom ua xua uas yuav muaj ntxhiab tsw ntse, thiab tuaj yeem ua rau khaus me ntsis, uas tuaj yeem ua rau muaj kev tsis haum tshuaj rau qee tus neeg. Yuav tsum tsis txhob kov daim tawv nqaij thiab qhov muag. Hauv qhov zoo, cov tshuaj kho UV tau raug xaiv los ua "Kev Tswj Xyuas Zoo Tshaj Plaws" (BACT) los ntawm EPA, txo cov VOC, CO2 emissions, thiab cov kev xav tau zog.
Cov txheej txheem dej muaj kev hloov pauv tsis tu ncua thoob plaws hauv kev nias vim yog qhov ua kom cov volatiles evaporation, thiab Ph cuam tshuam. Qhov sib txawv yog 100% solids UV coatings tswj tau qhov sib xws ntawm kev nias tsuav yog tsis muaj kev raug rau lub teeb UV.
Cov txheej txheej dej qhuav yog cov khoom siv rov ua dua tshiab, lwj tau thiab rov ua dua tshiab. Qhov txawv yog thaum cov txheej txheej UV kho tau rov ua dua tshiab thiab rov ua dua tshiab, lawv qeeb dua rau kev lwj. Qhov no yog vim tias cov khoom txheej sib txuas kho,
tsim cov khoom siv tiv taus lub cev thiab tshuaj lom neeg siab.
Cov txheej txheem dej qhuav nrog qhov ntshiab ntawm dej yam tsis muaj qhov daj ntawm kev laus. Qhov txawv yog tias cov txheej txheem UV kho kuj tuaj yeem ua kom pom tseeb siab, tab sis yuav tsum ceev faj thaum tsim cov qauv vim tias qee cov khoom siv raw tuaj yeem ua rau daj.
Cov txheej txheem dej muaj peev xwm ua raws li FDA cov cai rau ob qho tib si qhuav thiab / lossis ntub roj kov cov zaub mov. Qhov txawv yog tias UV coatings, tshwj tsis yog cov qauv tshwj xeeb tsawg heev, tsis muaj peev xwm ua raws li FDA cov cai rau kev qhuav lossis ntub / roj kov cov zaub mov ncaj qha.
Cov txiaj ntsig
Ntxiv rau qhov sib txawv, cov txheej txheem dej thiab UV muaj ntau yam txiaj ntsig rau ntau qib. Piv txwv li, cov qauv tshwj xeeb tuaj yeem muab kev tiv thaiv cua sov, roj, cawv, alkali, thiab noo noo. Tsis tas li ntawd, lawv tuaj yeem muab kev tiv thaiv gluing lossis kua nplaum, ntau yam COF, peev xwm luam tawm, kev lees txais cov ntawv ci kub lossis txias, lub peev xwm los tiv thaiv cov kua xim hlau, kev tsim khoom ntau dua, kev ua haujlwm hauv kab, kev ua haujlwm-thiab-tig, kev txuag hluav taws xob, tsis muaj teeb tsa, thiab hauv sheetfed offset tshem tawm cov hmoov tsuag.
Peb txoj kev lag luam ntawm Cork Industries yog kev tsim thiab tsim cov tshuaj pleev xim tshwj xeeb thiab cov nplaum uas siv dej los kho cov xim Ultraviolet (UV) uas siv hluav taws xob. Cork vam meej vim nws muaj peev xwm tsim cov khoom tshiab, cov khoom siv tshwj xeeb uas muaj txiaj ntsig zoo uas muab qhov zoo dua rau kev lag luam kos duab thiab tshuab luam ntawv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-21-2025
