Yuav ua li cas xaiv thiab siv UV inks zoo? Kev qhia ceev
UV inks yog nrov nyob rau hauv daim ntawv lo luam ntawv vim lawv cov xim ci, siab gloss, dej, hnyav thiab abrasion kuj, thiab ceev curing ceev. Lawv tau siv dav hauv flexographic, gravure, offset, thiab lwm yam kev luam ntawv. Xaiv thiab siv UV inks kom raug, tshwj xeeb tshaj yog nkag siab txog yam cuam tshuam rau kev kho, kev tshuaj ntsuam xyuas, thiab kev daws teeb meem, yog qhov tseem ceeb rau kev txo qis kev luam ntawv thiab txhim kho daim ntawv lo zoo.
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Cov xwm txheej tam sim no ntawm daim ntawv thov UV number case
1. Ntau yam UV number case zoo
Tam sim no, qhov zoo ntawm UV inks nyob rau hauv lub lag luam daim ntawv lo luam ntawv txawv heev, ua rau muaj ntau yam luam ntawv teeb meem xws li qhuav rollers, number case piling, ink splashes, thiab qias neeg daim hlau. UV- cov ntawv luam tawm feem ntau raug kev txom nyem los ntawm kev adhesion tsis zoo, tsis tshua muaj gloss, thiab tsis txaus opacity, tshwj xeeb tshaj yog nrog tus cwj mem dawb. Cov teeb meem no feem ntau yog tshwm sim los ntawm qis -kawg UV inks, cuam tshuam rau kev luam ntawv thiab cov khoom zoo.
Txhawm rau zam kom tsis txhob muaj teeb meem UV number case thiab ua tau raws li qhov yuav tsum tau ua rau ntau yam ntaub ntawv, kev siv, thiab kev luam ntawv, UV number case lwm tus neeg txuas ntxiv txhim kho thiab tsim cov khoom tshiab.
2. Tsis muaj kev sib koom ua ke UV teeb qauv
Cov nyhuv curing ntawm UV inks yog ncaj qha cuam tshuam los ntawm UV teeb. Tam sim no tsis muaj cov qauv sib koom ua ke rau UV teeb spectrum ntau yam, yog li kev lag luam UV teeb qhov chaw sib txawv hauv spectrum thiab lub zog. Kev sib txuam tsis zoo ntawm UV lub teeb thiab tus cwj mem tuaj yeem ua rau kev kho tsis tiav lossis dhau - kho ntawm qhov chaw, ua rau adhesion thiab lwm yam teeb meem zoo.
02
Yuav ua li cas xaiv UV number case
Qhov kev ua tau zoo ntawm tus number case yog qhov tseem ceeb rau qhov zoo ntawm UV- cov khoom luam tawm. Yog li ntawd, thaum xaiv UV number case, xav txog seb qhov emission wavelength ntawm koj lub teeb UV cuam tshuam qhov ua kom muaj zog ntawm tus number case photoinitiators. Ntau hom thiab hom UV inks kuj sib txawv hauv kev kho ceev thiab adhesion. Feem ntau, ntev npaum li cov xim dawb thiab xim dub ua tau raws li qhov yuav tsum tau ua, lwm cov xim feem ntau zoo, yog li tsom rau cov xim dub thiab dawb.
1. UV lub teeb yam ntxwv
UV teeb nyob ntawm 200 txog 600nm. Ntawm 254nm, nws tsim ozone, thiab siab dua 400nm, cua sov. Ozone pollutes ib puag ncig thiab ua phem rau kev noj qab haus huv; Thaum tshav kub kub tuaj yeem ua rau luam ntawv distortion thiab khib nyiab. Tsawg-lub zog UV teeb (HUV/LEC) emit 280–600nm, zam qhov ntau yam ozone tab sis tseem ua kom sov. LED teeb daws qhov no, nrog wavelengths ntawm 365nm, 385nm, thiab 395nm, tsis txhob ozone thiab cua sov, tsom lub zog kom zoo, kev nyab xeeb.
2. Xaiv UV number case raws li lub teeb sib xws
UV number case yuav tsum muaj UV teeb uas cov photoinitiators tuaj yeem nqus tau los tsim cov dawb radicals, ua kom cov resin thiab monomers crosslink thiab kho. Traditional UV inks muaj qhov ua kom muaj qhov ntev ntawm 220–580nm, qis- zog UV inks 280–400nm, thiab LED-UV inks 365–405nm. Thaum xaiv tus number case, xyuas kom meej lub wavelength rhiab heev ntawm koj lub teeb UV thiab xav txog lub zog kho lub zog kom xaiv hom raug.
3. Xaiv UV number case raws li cov xim dub thiab dawb ua haujlwm
Xim cuam tshuam kev kho ceev; cov xim sib txawv nqus UV teeb sib txawv. Magenta kho sai tshaj plaws, dub yog qhov nyuaj tshaj vim pigment particle blocking, xav tau ntau zog. Dawb kuj xav tau lub zog siab dua vim nws pom lub teeb pom kev zoo, ua kom qeeb. Zuag qhia tag nrho kev kho yog nyob ntawm dub thiab dawb; yog tias cov no ua haujlwm zoo, lwm cov xim feem ntau zoo.
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Kev paub txog UV luam ntawv tseem ceeb
Xaiv qhov zoo UV number case hom thiab hom tsuas yog thawj kauj ruam. Kev nkag siab tus cwj pwm ntawm tus cwj pwm, cuam tshuam rau tus cwj pwm, thiab kev hloov pauv kev ua haujlwm yog tsim nyog siv UV inks kom zoo thiab txhim kho daim ntawv luam ntawv zoo. Cov ntsiab lus tseem ceeb suav nrog kev tsim cov xim sib xyaw thiab ntsuas kev kho kom tiav.
1. Xim sib txawv hauv kev luam ntawv sib xyaw
Txhawm rau tswj kev luam ntawv zoo, kev tswj xim nruj yog xav tau. Kev tswj hwm digital yog ua raws li Lab tus nqi. Monochrome inks tej zaum yuav muaj tib tus nqi Lab, tab sis cov xim sib xyaw tuaj yeem sib txawv vim qhov sib txawv ntawm cov xim inks. Thaum overprinting, tsis tshua pom tus number case npog cov xim hauv qab ntau dua, ua rau pom qhov sib txawv txawm tias muaj txiaj ntsig Lab zoo sib xws los ntawm cov neeg muag khoom sib txawv. Spot xim sib xyaw ua haujlwm zoo ib yam, ua cov xim tsaus, nplua nuj xim rau txawm tias, khoom luam ntawv, feem ntau hauv ntim thiab cov ntawv lo.
2. Yuav ua li cas los txiav txim seb UV number case puas kho tau
Txawm hais tias UV number case tuaj yeem kho tau tag nrho txiav txim siab qhov adhesion ntawm cov ntawv luam tawm txheej, luam tawm cov xim luam tawm, thiab glossiness ntawm cov luam ntawv txheej. Kev txiav txim siab sai thiab raug rau ntawm - qhov chaw yog qhov tseem ceeb heev, yog li tib neeg tau sau ntau txoj hauv kev hauv kev xyaum, uas tuaj yeem muab faib ua kev soj ntsuam, kuaj lub cev, thiab kuaj tshuaj.
Kev soj ntsuam tsis tas yuav tsum muaj cov cuab yeej thiab txiav txim siab kho los ntawm kev tshuaj xyuas yog tias UV number case txheej muaj qhov ci ntsa iab. Kev kho tag nrho UV number case txheej yog glossy heev.
Muaj ob txoj hauv kev kuaj lub cev. Txoj Kev 1: Muab ib daim ntawv rau ntawm UV number case txheej ntawm cov luam ntawv thiab rub nws nrog koj txhais tes. Yog hais tias qhov curing tsis tiav, tus number case nto yuav puas. Txoj Kev 2: kos cov txheej UV number case nrog tus pin thiab tom qab ntawd saib cov khawb hauv qab 200x magnifying iav. Yog tias qhov khawb tshwm serrated, nws qhia tias UV number case txheej tau kho tag nrho.
Kev kuaj tshuaj yuav tsum muaj acetone. Muab tso rau ntawm UV number case txheej, thiab yog tias txheej txheej yaj, nws qhia tau tias nws tsis kho tag nrho.
Saum toj no, kuv tau qhia qee cov ntsiab lus tseem ceeb hais txog kev xaiv thiab siv tus cwj mem UV los ntawm kev xav ntawm daim ntawv thov tam sim no, xaiv li cas, thiab kev paub tseem ceeb, vam tias nws yuav pab tau. Ib tsab xov xwm tom ntej no yuav qhia txog cov teeb meem tshwm sim hauv UV number case printing thiab lawv cov kev daws teeb meem, yog li nyob twj ywm!