Dab tsi tshwm sim yuav cuam tshuam cov luam ntawv cov nyhuv ntawm UV number rau ntawm daim ntawv?
Apr 23, 2025
1. Lub luag haujlwm txiav txim siab ntawm cov ntawv khoom ntawm kev luam ntawv cuam tshuam
2. Tswj cov tub ntxhais cov tsis sib xws ntawm UV number cask
3. Kev ua haujlwm ua kom zoo ntawm cov tshuab luam ntawv thiab cov txheej txheem
5. Kev cuam tshuam ntawm cov txheej txheem ntawm ib puag ncig
1. Lub luag haujlwm txiav txim siab ntawm cov ntawv khoom ntawm kev luam ntawv cuam tshuam
Inkas nqus: lub poror qauv thiab thaj chaw polarity txiav txim siab qhov nqus tau ntawm number case. Rau daim ntawv xoob (xws li ntawv xov xwm), nws muaj loj dua thiab pores sab hauv, uas ua ib lub capillary-zoo li cov qauv. Thaum UV Ink Ink tiv tauj saum npoo ntawm cov ntawv xov xwm, tus phau ntawv nyob rau hauv tus cwj mem yuav nkag mus rau hauv daim ntawv tsav los ntawm capillary kev txiav txim. Txoj kev ua kom nrawm dua tuaj yeem kho kom nrawm ntawm tus number case, yog li tus number case tuaj yeem ncav cuag ib co lej ntawm cov ntawv saum npoo av nrawm dua. Txawm li cas los xij, vim muaj ntau qhov kev mob siab ceev ntawm cov phau ntawv, thiab tsis tuaj yeem tsim cov txheej txheem zoo nkauj, thiab tsis tuaj yeem ua kom pom cov kua mem kua txiv kom txo qis.
Txawm li cas los xij, daim ntawv compact (xws li coated ntawv) muaj ib coated nto nrog cov ntxig thiab tusyees. Thaum lub sij hawm cov txheej txheem luam ntawv, cov hws zoo ntawm cov coated ntawv tso cai rau cov ntawv uas muaj kev nkag rau hauv daim pores vim lawv loj dua molecular loj, thiab yog li nyob twj ywm ntxiv nyob rau saum npoo ntawm daim ntawv. Cov tshuaj polymer polymer tau khaws cia rau ntawm qhov kev kho tau zoo nyob rau hauv kev ua yeeb yam ntawm UV teeb tau muaj cov gloss thiab ci ci ua yeeb yam.
Tsis tas li ntawd, rau qee cov yeeb yaj kiab tsis-nqus cov yeeb yaj kiab (xws li cov yeeb yaj kiab yas), nws yog qhov nyuaj rau ntub thiab ua raws li lawv cov chaw. Corona kev kho yog txoj kev txhim kho zoo. Los ntawm kev thov lub siab voltage rau saum npoo ntawm zaj duab xis, ib pawg molar ntawm cov qauv monor, thiab cov pawg molar ntawm cov polarity ntawm zaj duab xis. Nyob rau hauv txoj kev no, tus cwj mem tuaj yeem ntub tau zoo dua ntub thiab kis tau rau saum npoo ntawm cov duab sib dhos, txhim kho kev sib sau ua ke ntawm tus cwj pwm thiab txhim kho cov luam ntawv zoo.
Daj Roughness:
Qhov saum npoo roughness ntawm daim ntawv muaj qhov cuam tshuam tseem ceeb rau cov luam ntawv cov nyhuv ntawm UV number case. Cov nplaim ntxhib muaj ntau cov kev tawm tsam me me thiab kev ntxhov siab. Thaum tus lej Ink hu rau daim ntawv, cov kev tawm tsam no tuaj yeem ua tus number case, yog li ntawd cov nplaum ntawm tus mem kua rau ntawm daim ntawv saum npoo av yog txhim kho. Txawm li cas los xij, qhov no ntxhib sab tseem no tseem muaj qee yam tsis zoo. Thaum cov luam ntawv, tus mem kua yuav sau ntau dua nyob rau hauv concave seem, ua rau cov dots los nthuav cov duab luam tawm thiab cuam tshuam rau cov lus pom tseeb ntawm cov khoom luam tawm. Thaum luam ntawv hauv daim teb, vim qhov tsis sib xws ntawm cov mem dej saum npoo av kuj yuav tsis txawv, thiab cov xim hauv zos yuav dhau los, ua rau cov xim luam ntawv tsis sib xws, cuam tshuam rau tag nrho cov luam ntawv luam ntawv.
Siv daim ntawv tsis muaj ntaub ntawv ua piv txwv, nws cov npoo yog ntxhib. Hauv cov txheej txheem luam ntawv, txhawm rau sib npaug ntawm kev hloov pauv ua haujlwm thiab nthuav dav kev kho kom rov kho dua tshiab, luam ntawv siab thiab number case yuav tsum tau hloov kho. Kev tsim nyog nce lub tshuab luam ntawv siab tuaj yeem ua rau tus number case zoo dua ntawm cov number case thiab txhim kho cov number case ib feem Nyob rau tib lub sijhawm, kho cov kua mem kua viscosity kuj tseem ceeb heev. Ntau dua Ink viscosity tuaj yeem txo cov mem kua rau ntawm daim ntawv saum toj no thiab kev pab kom muaj teeb meem ntau dhau yuav ua rau muaj kev nyuaj hauv Ink Hloov thiab tsis pom kev lawm.
PH tus nqi:
Tus lej pH yog ib qho ntawm nws cov tshuaj lom neeg tseem ceeb, uas muaj ntau yam cuam tshuam ntawm kev luam ntawv ntawm UV number case. Acidic ntawv (ph <7) muaj qee qhov nyiaj ntawm cov kua qaub, uas yuav inhibit cov oxidation videoing txheej txheem ntawm tus cwj mem. Nyob rau hauv cov txheej txheem ziab khaub ncaws ua ib txwm muaj, oxidation kev ua yeeb yaj kiab yog ib puag ncig qhuav huv, thiab cov acidic ib puag ncig yuav qeeb li lub sij hawm kom qhuav ntawm tus cwj mem qhuav. Rau UV inks, txawm hais tias nws lub ntsiab drying txoj kev yog UV lub teeb kho, cov acidic ib puag ncig tseem yuav cuam tshuam nrog tus cwjpwm ntawm tus mem kua thiab cuam tshuam rau kev kho cov txiaj ntsig.
Daim ntawv Alkaline (Ph> 7) tej zaum yuav ua rau tsis muaj ink discoloration lossis ntawv embrittlement. Cov tshuaj alkaline yuav hnov qee yam hauv number case, ua rau cov kua mem kua txiv, ua rau cov xim hloov pauv, cuam tshuam rau cov xim raug ntawm cov khoom luam tawm. Nyob rau tib lub sijhawm, ib puag ncig alkaline yuav ua rau daim ntawv ntev, uas yuav rhuav tshem cov ntawv cim npe, thiab txo cov ntawv nkig thiab cov ntawv teev ntev ntawm daim ntawv.
Hauv cov txheej txheem luam ntawv offset, tus nqi ntawm tus nqi ntawm daim ntawv tseem yuav muaj qhov cuam tshuam tseem ceeb rau qhov sib npaug ntawm cov ciav dej. Lub pas dej daws tau lub luag haujlwm tseem ceeb hauv kev luam tawm offset. Nws tuaj yeem ua kom qhov seem ntawm kev luam ntawv phaj hydrophilic thiab tiv thaiv tus mem kua los ntawm kev ua raws li qhov seem. Txawm li cas los xij, tus nqi ntawm tus nqi ntawm daim ntawv yuav cuam tshuam rau qhov sib npaug ntawm cov ciav dej. Yog tias daim ntawv yog acidic, nws yuav nce acidity ntawm lub ciav dej thiab ua rau lub kua mem kua emulsification. Ink emulsification yog hais txog kev sib xyaw ntawm number case thiab qab zib tov los tsim cov num viscosity thiab ua rau muaj teeb meem xws li lub teeb mem kua thiab plooj plooj. Yog tias daim ntawv yog alkaline, nws yuav ua rau lub alkalinity ntawm lub pas dej tsis zoo, thiab ua rau cov kua mem dej tsis zoo, thiab cov kab mob nplaum ntawm cov khoom seem ntawm cov khoom luam tawm.
Txhav thiab tuab:
Lub ntsws thiab tuab ntawm daim ntawv kuj tseem yog qhov tseem ceeb cuam tshuam rau cov ntawv luam tawm ntawm UV number case. Cov ntawv nyias nyias yog yooj yim rau deform rau thaum lub tshuab luam ntawv vim nws cov tuab tuab thiab muaj zog qis. Piv txwv li, hauv cov txheej txheem ntawm ntau-cov xim sib txawv, cov ntawv nyias nyias yuav ua rau muaj kev sib tw ntawm cov khoom lag luam txuas ntxiv, cuam tshuam rau qhov zoo ntawm cov khoom luam tawm.
Cov ntawv tuab, vim nws cov tuab, nqus UV txav ntau zog. Thaum lub sij hawm UV kho txheej txheem, UV lub teeb yuav tsum nkag qhov number casis kom nkag mus rau lub zog rau tus kws yees duab, yog li pib lub tshuaj tiv thaiv. Thaum daim ntawv yog tuab tuab, UV teeb yuav nqus thiab tawg nyob rau hauv cov txheej txheem ntawm cov txheej txheem ntawm cov ntawv sau kom tsawg hauv lub teeb hluav taws xob nce mus txog hauv qab ncau. Yog tias lub zog kho tsis tau nce raws li, yog tsis kho tag nrho, yog li cuam tshuam rau Ink's Adhesion, hnav tsis kam thiab lwm yam khoom. Yog li ntawd, thaum luam ntawv ntawm daim ntawv tuab, nws yog feem ntau tsim nyog los nce lub sijhawm ntawm UV teeb los yog nce lub zog hauv qab yuav tau txais lub zog txaus los kho thiab tau txais cov khoom siv zoo.
2. Tswj cov tub ntxhais cov tsis sib xws ntawmUV number casecov lus ntawm ib txoj kab ke
Cov tshuaj lom neeg muaj kuab lom thiab rheological yam ntxwv ntawm number cas ncaj qha txiav txim siab txog qhov luam tawm thiab cov nyhuv kho.
2.1. Viscosity thiab thixotrotropy:
Viscosity cuam tshuam rau cov kua mem pa hloov efficiency thiab dot clarity. Tsawg-viscosity inks (xws li offset UV inks) yog qhov tsim nyog rau high-speed luam ntawv, tab sis yuav ua rau cov khoom cim lossis lub teeb xim; High-viscosity inks (xws li screen UV inks) yog qhov ua kom muaj cov kua member kom tsis txhob nias phaj. Thixotropic inks thicken thaum sawv, uas tuaj yeem txo cov number case qhuav thaum lub tshuab luam ntawv.
2.2. Xim concentration thiab dispersibility:
Cov pigments siab pigments (xws li dawb thiab dub) nqus ntau UV teeb, ua rau kev kho tsis tiav. Piv txwv li, tus cwj mem dawb opaque yog qhov nyuaj dua los kho dua li dub, thiab UV zog yuav tsum tau nce lossis cov kua mem dej tuab yuav tsum tau txo qis. Cov xim txom nyem tsis zoo yuav ua rau riam rau riam lossis PEue disciations, uas yuav tsum tau ua kom zoo los ntawm dispersants.
2.3. Yeesininitiator thiab Resin System:
Qhov nqus tau lub spectrum ntawm tus kws ua duab thaij duab yuav tsum tau phim UV lub teeb ci. Hom kev cob hauj lwm txiav txim siab qhov hloov thiab cov tshuaj tiv thaiv ntawm cov kav dej. Acrylic resins kho tau sai sai tab sis muaj ntau nkev, thaum lub sij hawm polyurethane hloov kho tuaj yeem txhim kho adhesion.
2.4. Txuas ntxiv ntawm cov ntxiv:
Leveling cov neeg sawv cev txhim kho lub tiaj tus ntawm cov number casking ntawm tus number cason zaj duab xis, thiab inhibitors tiv thaiv tus kua mem los ntawm kev kho kom ntxov thaum lub sijhawm khaws cia. Adhesion cov txhawb nqa (xws li cov neeg ua kom zoo nkauj txuas ntxiv) tuaj yeem txhim kho cov tshuaj lom neeg sib tham ntawm tus cwj mem thiab daim ntawv.
3. Kev ua haujlwm ua kom zoo ntawm cov khoom siv luam ntawv thiab cov txheej txheem
Cov cuab yeej ua tau zoo thiab kev ua haujlwm tsis ncaj qha cuam tshuam rau kev hloov pauv hloov thiab kho kev ua haujlwm ntawm number case.
3.1. Kev Luam Ntawv Txoj Kev Yooj Yim:
Offset luam ntawv: Tsim nyog rau cov high-precision graphics, nws yog qhov tsim nyog los tswj cov dej-mem kua sib npaug kom tsis txhob UV ink emulsification.
Flexo Luam Ntawv: Quastitative Pak muab los ntawm anilox cov menyuam, haum rau loj-thaj chaw luam ntawv, tab sis saib xyuas yuav tsum tau them nyiaj rau qhov sib txuam ntawm UV teeb lub zog thiab luam ntawv ceev.
Vijtsam luam ntawv:Tuab number case txheej ({10-12 μm) tuaj yeem ua tiav, tab sis high-viscosity ink yuav tsum tau ua preheated los txhim kho kom muaj fluacity.
3.2. Cov khoom noj khoom:
Nyob rau hauv gravation Printing, tus naj npawb ntawm cov kab ntawm anilox cov menyuam thiab cov duab ntawm cov kua mem kua taub txiav txim siab qhov ntau ntawm cov mem kua. High-kab anilox chais (xws li 1200lpi) yog qhov tsim nyog rau cov luam ntawv tau zoo, thiab cov kab qis (xws li 300LPI) yog siv rau cov xim xim tawv.
3.3. Siab Thiab Ceev:
Cov tshuab luam ntawv tsis muaj txhij yuav ua rau tsis muaj kev hloov pauv tsis txaus, thiab ntau dhau los yuav tsoo cov ntawv. Thaum lub tshuab luam ntawv ceev dhau lawm dhau los, nws yog qhov tsim nyog los nce UV teeb lub zog lossis nce tus naj npawb ntawm kev kho cov koog ua kom paub meej caping.
Tus txheej txheem kho tau yog qhov txuas tseem ceeb hauv kev txiav txim siab cov inks, thiab xav tau kev ua kom zoo los ntawm peb yam: lub zog, thiab ib puag ncig.
1. Xaiv UV lub teeb ci:
Mercury Teeb: tag nrho spectrum tso zis, haum rau ntau xim inks, tab sis kev siv hluav taws xob ntau thiab lub sijhawm luv luv (txog 1000 teev).
UV LED: Qhov nqaim nqaim (xws li 395nm), lub neej qis, lub neej ntev (20, {} Lub neej (20, {
2. Kev Tswj Xyuas Zog:
UV Zog yuav tsum tau hloov kho raws li hom number case thiab cov tuab tuab ntawm cov number case txheej. Piv txwv li, daim ntawv luam ntawv feem ntau yuav tsum 800-1200 mj / cm} mj / cm}, thaum zaj duab xis luam ntawv yuav xav tau ntau tshaj 1500MJ / cm². Lub zog tsis txaus ua rau kev kho tsis tiav, thiab lub zog ntau dhau yuav ua rau mob siab lossis tsis raug cai ntawm lub substrate.
3. Kev kho ib puag ncig:
Oxygen inhibits free radical polymerization, and the curing efficiency can be improved by nitrogen purging or reducing the oxygen content in the environment. In addition, high temperature environment (>30 Qib) yuav ua kom nrawm mem tshuaj kho, tab sis daim ntawv deformation yuav tsum tau tiv thaiv.
5. Cov kev cuam tshuam ntawm ib puag ncig
Cov khoom siv hluav taws xob ib puag ncig xws li qhov kub ib puag ncig, av noo thiab cov hluav taws xob plua plav yuav tsum muaj nyob hauv tag nrho cov txheej txheem kev tswj.
5.1. Kub Thiab Vaum Tswj:
Qhov kub thiab txias: Lub piscosity ntawm number case txo nrog kev nce nrog kub, thiab 20-25 degree yog qhov zoo tshaj plaws ua haujlwm ntau. Kev kub dhau heev yuav ua rau number case ntws, thiab tsis tshua muaj kub dhau lawm yuav ua rau kev taw taw.
Humidity: High humidity (>70% rh) yuav ua rau daim ntawv los nqus cov dej noo thiab deform, cuam tshuam rau qhov tseeb ntawm kev rho tawm; Tsawg noo (<30% RH) is prone to static electricity, adsorbing dust and interfering with ink transfer.
5.2. Kev Kho Kom Huv Si:
Lub Rhiav luam tawm yuav tsum muaj plua plav theem kom tsis txhob muaj hmoov av embedding nyob rau hauv lub number casle txheej dawb. Cov pa phem tuaj yeem txo los ntawm cov pa lim cov tshuab thiab kev tu kom huv.
5.3. Lub Hluav Taws Xob Hluav Taws Xob Ntaus:
Cov hluav taws xob zoo li cas yuav ua rau muaj cov kua zaub tawg lossis ntawv nplaum. Ion kiv cua lossis humidification (av noo> 50% Rh) tuaj yeem siv los txo kev pheej hmoo ntawm hluav taws xob zoo li qub.
