Yuav ua li cas luam tawm PE, PP hwj nrog cwj mem (UV) curing
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Qhov luam tawm ntawm lub raj mis yog sau rau ntawm lub khob thiab tuaj yeem ua tiav nrog lub tshuab luam yeeb. Rau cov fwj siv cov PE thiab PP cov ntaub ntawv, xws li tshuaj zawv plaub hau, cov gels da dej, tshuaj pleev ib ce, tshuaj tua kab, thiab lwm yam, feem ntau siv cov ciav hlau curing, yog li yuav tsum tau kho ntawm kab npo luam yeeb. Yuav kom daws tau qhov teebmeem ntawm tus cwj mem rau nws. Li ntawd, dab tsi yog qhov zoo tshaj plaws kev kho mob rau photocurable inks? Yuav ua li cas rau polarize PE thiab PP fais mus cuag ib tug zoo inking nyhuv, qhov teeb meem no yog piav qhia hauv qab no.
Ua ntej, qhov pib paub ntawm UV number case
1. Cov lus qhia ntawm UV number case thiab nws lub luag hauj lwm nyob rau hauv tus number case
1 lub cev tsis muaj zog (tseem hu ua diluent monomer): yog lub cev me me (tsis muaj molecular weight) tshuaj, uas ua rau txo lub viscosity, ua si lub luag hauj lwm ntawm dispersing pigment thiab dilute resin, txiav txim siab cov yam ntxwv ntawm tus cwj pwm, xws li viscosity , Kho mob thiab ua kom siab. Nws tsis volatilize thiab koom rau hauv UV rein curing kev cuam tshuam kev sib txuas ua ke.
2 Pabcuam: xws li cov pigments, lubricants, thickeners, fillers, accelerators, thiab lwm yam., Uas cuam tshuam rau xim ntawm tus cwj pwm, qhov ceev ceev, thickness ntawm tus number case txheej, thiab cov ntawv pov thawj thiab huab cua ntawm tus cwj mem.
3 Cov duab yees duab: Nws yog ib qho tseem ceeb ntawm UV number case film, uas yog, cov khoom sib txuas ntawm UV number case, uas pom cov gloss thiab adhesion ntawm UV number case. Txawv cov phev siv txawv resins kom haum cov substrates ntawm cov ntaub ntawv sib txawv.
4 Initiator: Nws yog ib hom tshuaj uas ua rau muaj kev sib txuam ntawm kev sib txuam. Nyob rau hauv cov tshuaj tiv thaiv yees duab, tus thawj coj yog ib zaug
Tom qab qhov kev yees duab yees duab absorbbs photons, nws yuav zoo siab heev thiab nquag, generates dawb radicals, hloov tsheb mus rau lwm cov duab ci polymers, ua rau cov neeg muaj kev sib raug zoo, thiab sib txuas cov duab monomolecular, additives, thiab yees duab-tawv resins tsim lub network zoo li cov qauv ruaj khov. Tus lej number case txuas nrog lub substrate.
2. UV number case curing thiab cov tseev kom muaj kev tua kab mob
1 hom refector: hom ntsej muag, hom tsi ntsees thiab ntau lub ntsej muag phom hom. Qhov tsom, cov tsis-teem thiab ntau hom cwj pwm raug siv los kho cov kua roj vanish (khawm tsis muaj xim).
2 UV teeb: Lub zog ntawm UV teeb yuav tsum muaj raws li qhov yuav tsum tau ua rau txav mus rau UV number case kom ua tau zoo. Qhov siab tshaj plaws lub neej ntawm UV yaj yuav tsum tsis pub tshaj 1200 xuab moos. Nws yog feem ntau pom zoo kom hloov tau lawv tom qab 1000 xuab moos. Ntxuav lub teeb ntawm kev ua ub ua no. Tom qab ntxuav, tig lub teeb rau lub sijhawm teem rau 1/4 lub lim tiam (tuaj yeem rov ua dua peb zaug). Ceev faj thaum nruab thiab tu UV yaj.
Tshawb nrhiav ntawm 3 lub cev: Lub zog tso zis ntawm UV teeb tau muab ntsuas nrog lub ntsuas cua zog. Siv UV, IMAP waveform zaub los kos UV daim ntawv qhia, raws li daim ntawv qhia UV, ntes cov kab tua; Yog hais tias daim ntawv qhia lub zog yog ntse, nws txhais tau hais tias tsis muaj teeb meem hauv txoj kab tua kab; yog tias saum yog hump, tus reflector yog dusty; yog qhov saum toj yuav qhia tau tias lub teeb yog kev laus, thiab kev hloov yuav tsum tau hloov raws li qhov ntsuas ntawm kev laus.
4 lub teeb curing ntsiab:
● Lub zog ntawm UV teeb: uas yog, UV teeb hluav taws xob, tseem hu ua lub zog hluav taws xob, yuav tsum ua kom tau raws li txoj cai ntawm UV-curable number case. Yog tias lub hwj chim ntawm UV teeb tsis txaus, txawm tias lub sijhawm rau lub sijhawm ntev dua, lossis ntau zaus ntawm kev tua kom rov ua dua, tus number case tsis tuaj yeem ua. Siab kho. Yog li, thaum lub zog UV teeb tsis txaus, tus number case yuav tsum tau ua kom tau los ntawm lub siab teeb, vim tias UV lub teeb tawm ntawm qhov qis-tsawg teeb tsis tuaj yeem nkag mus rau hauv qab ntawm cov ink txheej, tsis ua kom tiav.
● Ua kom ceev: Qhov ceev ceev yuav tsum muab xam los ntawm ob qho. Ib tug yog kho kom zoo; ib qho yog qhov ua kom zoo ntawm txoj kev kho kom zoo. Qhov zoo tshaj plaws curing ceev yog xaiv los ntawm thawj zaug tua ntawm ib qho kev ceev ntawm lub tshuab UV. Yog tias nws kho lawm, qhov nce tau nce mus txog rau thaum lub plhaub ntim uas dhau los ntawm kev tua cov tshuab tsis kho. Nyob rau lub sij hawm no, qhov zoo tshaj plaws kev kho ceev yuav txiav txim siab. Ntawd yog, qhov uas tsis muaj kev pib los ntawm kev ceev xaj 0.8 = qhov zoo tshaj plaws kom khov kho.
● Cov kabmob spectral spectral spectral ntawm UV teeb: uas yog, spectral rhiab ntau ntawm UV teeb yuav tsum thaij ntawm UV number case. Nws yog feem ntau yuav tsum tau tias UV teeb muaj lub wavelength ntawm qhov ntau ntawm 18 mus rau 420 nm.
5 kev sim ua tiav:
Tom qab luam ntawv dhau los ntawm UV tshuab thiab txias rau qhov chaw sov, qhov teeb meem tshwm sim tuaj yeem txiav mus rau 6 × 6 hli. Nco ntsoov tias tus cwj pwm xaj duab tsuas yog khawb tau thiab tsis tuaj yeem ua kom puas. Qhov kev nplua yuav sim nrog 3M-600 # daim kab xev, thiab cov lus qhia nram qab no tuaj yeem ua kom pom los ntawm qhov kev ntsuas tawm. teeb meem:
● Yog tias tsis muaj ib txheej xoom rau ntawm daim kab xev, nws txhais tau hais tias zoo tu thiab ua zoo nkauj.
● Yog hais tias tag nrho cov xaim pauv rau hauv daim kab xev, muaj plaub qhov teeb meem: cov koob ntim series tsis raug xaiv (uas yog, nws tsis phim cov khoom siv los ntawm cov substrate); tus substrate muaj ntau npaum li cas ntawm cov yas yas los yog tus tso tawm deg; qhov tsis sib haum ntawm lub substrate Tsawg tsawg, yuav tsum tau kho los yog ua tiav yam tsis muaj kev kho mob; txom nyem number case curing.
● Cov ntug ntawm lub tshuab raj tsis hloov, thiab qhov nruab nrab yog xa mus rau daim kab xev, qhia tias nws tsis kho kom zoo. Qhov no yog vim tias lub teeb lub teeb tseem tsis txaus lossis lub zog ntawm lub teeb tseem txaus siab, tab sis kev ceev ceev yog ceev heev.
● Lub plab hnyuv tau ua ib tug dab, qhia tias tus number case yog tsis kho.
● Thaum cov ntaub ntawv tshaj tawm, yog tias qhov adhesion ntawm cov xim thib ob tsis zoo, tsuas yog cov txheej thib ob yuav poob thaum daim kab xev tau sim, qhia tias thawj xim zoo nkauj tshaj; yog tias ob qho tib si raug kuaj tom qab muaj kev sib tshuam, thawj txheej yog tsis kho. Txoj cai UV kho rau kev luam ntawv overlay yog 70/30 RULE, ie 70% kev kho, 30% uncured, thiab thaum kawg tus number case txheej yuav tsum yog 100% kho.
6 Piv txwv piv txwv ntawm cov xwm txheej cuam tshuam xwv npuag tuab
7 qhov teebmeem ntawm cov khoom siv ntxiv.
Ntxiv cov additives yuav muaj kev cuam tshuam rau qee cov khoom ntawm tus cwj pwm, xws li muab cov thawj kauj ruam, uas tuaj yeem txhim kho qhov adhesion, tab sis nws yuav cuam tshuam rau lub softness ntawm tus number case, thiab yog tus nqi ntxiv ntau dua, nws yuav ua rau kev sib tsoo thiab muab luam tawm.
8 txheej txheem txheej txheem:
● Cov ntxaij vab tshaus hauv UV ntim luam tawm feem ntau siv kev nruj siab, qis elongation, S-qib sab nraud los sis ib leeg xaj xaim xaim hlau. Lub zog muaj zog zoo.
● Qhov nro ntawm qhov screen yog qhov sib xws, qhov yuam kev yog ± 2N / cm, qhov nro yog inconsistent, tus number case yog tsis sib xws, thiab txoj kev sib txawv ntawm txoj haujlwm yuav raug ua.
● Mesh nrug feem ntau yog nruab nrab ntawm 2-4 hli, thiab txoj kev nrug mesh yuav tsum tau kho raws li qhov nro.
● Cov tawv nqaij ntawm qhov khib nyiab yog 60 ° 90 °, feem ntau 70 ° ntawm tes thiab 80 ° ntawm tshuab.
● Npaj ua ntej ntawm substrate. Vim yog qhov sib txawv ntawm cov khoom sib txawv ntawm cov khoom siv substrate, qhov kev kho deg ntawm lub substrate tseem ceeb heev rau lub adhesion ntawm UV number case. Rau cov yeeb yaj kiab, siv cov ntaub ntim khoom ntxhua nrog cawv los yog isopropyl cawv kom tshem cov yas tho tawm thiab tshem cov tshuaj uas ntim rau hauv npoo ntawm cov nqos, xws li hmoov av thiab roj; rau PP, PE, PU nrog qhov tsis tshua muaj siab nro Cov ntaub ntawv xws li cov tsiaj ntawv PET yog kho hluav taws xob los yog corona kho raws li cov thickness thiab thickness ntawm cov teeb meem luam los ua rau cov dej ua ntu thiab txhim kho qhov ua tiav. Ua ntej, qhov nro ntawm qhov substrate yog ≥45 dynes / cm tom qab kev kho mob.
● Cov ntawv xoom yuav tsum tau siab hlo ua ntej siv. Hauv particular, nws yuav tsum muaj kev sib tov tusyees tom qab ntxiv cov additive. Txwv tsis pub, qee qhov ua kom tawv nqaij muaj zog, thiab qee cov neeg tsis muaj cure los yog tsis zoo txaus, thiab cov luam ntawv yuav ua rau ua rau adhesion.
● Lub teeb ntawm UV teeb yuav tsum ua kom tau raws li qhov yuav tsum tau ua thiab kho qhov ceev kom zoo.
● Tom qab kho, nws tau txias rau qhov chaw sov li, thiab qhov ntsuas kev sib tw tau ua tiav nrog 3M-600 # daim kab xev. Lub adhesion thiab hnyav kuj tau optimized 24 xuab moos tom qab tua.