1. Pre-volatile drying mechanism
Pre-drying yog txheej txheem tsim nyog ua ntej kev yees duab kho. Kev ua tsis tiav ua ntej ziab yuav ua rau qhov tsis txaus siab zaum kawg ntawm kev kho cov duab. UV-kho tau dej-raws li inks feem ntau siv cov cua sov tsim nyog, xws li infrared ci los yog cua kub kom qhuav, kom txo qis cov txheej txheem pib ya raws. Nrog rau qhov maj mam volatilization ntawm cov dej, cov dispersed polymer hais maj mam txav los ze zog, tab sis lawv tseem tuaj yeem txav tau dawb. Tom qab ntawd, raws li cov dej volatilizes ntxiv, cov khoom polymers ncav cuag cov ntim ze thiab ua rau tsis muaj kev sib cuag nrog ib leeg. Nws feem ntau ntseeg tias qhov theoretical ntim cov ntsiab lus yog 74% nyob rau lub sijhawm no.
2. UV curing zaj duab xis tsim mechanism
Nyob rau theem tom ntej, cov theem dispersed particles pib condense, thiab txog 3% noo noo nyob rau lub sij hawm no. Nyob rau tib lub sijhawm, curing pab pawg molecule uas muaj cov pab pawg ua haujlwm tau txais kev kho cov tshuaj tiv thaiv ntawm qhov cuam tshuam thiab sab hauv ntawm cov txheej txheem dispersed nyob rau hauv qhov pib ntawm photoinitiator.
Cov txheej txheem kho feem ntau tuaj yeem muab faib ua plaub theem: ① Kev sib cuam tshuam ntawm lub teeb thiab photoinitiator, uas yuav suav nrog kev nqus ntawm lub teeb thiab kev cuam tshuam ntawm photoinitiator; ②Lub photoinitiator molecules yog rearranged los ua dawb radicals nruab nrab; ③ Cov tshuaj tiv thaiv ntawm cov dawb radicals nrog cov pab pawg unsaturated nyob rau hauv lub oligomer pib ib tug saw los yog polymerization cov tshuaj tiv thaiv; ④ Cov tshuaj tiv thaiv polymerization txuas ntxiv, thiab cov khoom ua kua tau hloov mus rau hauv cov khoom polymer.
3. Qhov zoo ntawm UV teeb kho cov cuab yeej:
Fast curing ceev: zoo tib yam offset luam ntawv yuav siv sij hawm ob peb teev los yog ntau tshaj lub sij hawm kom qhuav cov number case thiab nkag mus rau cov txheej txheem tom ntej. UV offset luam ntawv tuaj yeem kho tau tag nrho hauv 1 thib ob mus rau ob peb vib nas this, yog li nws yog qhov tshwj xeeb tshaj yog tsim rau luam tawm qee qhov tsis-nqus substrates.
Muaj zog abrasion tsis kam: Tom qab UV number case yog kho rau hauv zaj duab xis, nws cov kev sib txhuam tsis zoo, uas txo qhov poob los ntawm kev sib txhuam thaum siv thiab kev thauj mus los ntawm cov khoom ntim.
Kev luam ntawv ntsuab: UV number case tsis muaj cov kuab tshuaj, tsis muaj cov kuab tshuaj volatilization, thiab yuav tsis ua phem rau cov huab cua. Nws belongs rau ntsuab printing.
Tsis muaj hmoov txau: Vim tias nws tuaj yeem kho tau thiab ziab hauv lub sijhawm tom qab UV irradiation, tsis tas yuav txau cov hmoov, uas ua rau kev ua haujlwm zoo heev. Nyob rau tib lub sijhawm, nws kuj yog qhov tsim nyog rau kev ua haujlwm tom qab xovxwm, xws li laminating, glazing, thiab lwm yam.
Kev ua haujlwm siab thiab zoo: UV offset luam ntawv muaj lub voj voog luv luv, muaj peev xwm ntau lawm, thiab cov ntawv luam tawm yog qhov tseeb thiab zoo. Txawm li cas los xij, vim tias cov txheej txheem ntim UV offset luam ntawv yog qhov nyuaj dua, thiab lub sijhawm thov tsis ntev, nws yog ib qho tsim nyog yuav tsum tau ua kom tiav cov ntsiab lus ntawm cov txheej txheem luam ntawv, thiab pom qhov tsis txaus ntawm UV offset luam ntawv, thiab txuas ntxiv txhim kho.
