Hauv -Kev ntsuas qhov tob! Toner vs. Inkjet Imaging Technology: Koj puas to taub qhov txawv?
Cov luam ntawv digital tau dhau los ua qhov tsis tuaj yeem nres. Tam sim no, ntau thiab ntau lub tuam txhab luam ntawv luam tawm tau nqis peev hauv cov cuab yeej luam ntawv digital ntawm lawv cov txheej txheem. Txawm li cas los xij, ntsib nrog cov khoom siv digital label luam tawm tas li nyob rau hauv kev ua lag luam, yuav ua li cas cov tuam txhab luam ntawv yuav tsum xaiv cov cuab yeej uas haum rau lawv cov kev xav tau? Tsab ntawv xov xwm no muab kev sib piv los ntawm ntau yam xws li cov hauv paus ntsiab lus ntawm digital printing, cov yam ntxwv ntawm consumables, thiab cov khoom adaptability rau siv, vam tias yuav pab cov tuam txhab luam ntawv luam ntawv yuav cov khoom siv digital label luam ntawv xav tau.
Raws li cov qauv kev yees duab, cov thev naus laus zis thev naus laus zis hauv kev lag luam tuaj yeem muab faib ua ob pawg: digital electrostatic toner imaging technology thiab digital inkjet imaging technology.
Digital Electrostatic Toner Imaging Technology
Cov thev naus laus zis thev naus laus zis thev naus laus zis tuaj yeem muab faib ua cov tshuab toner qhuav (tsuas yog sawv cev los ntawm Seiko CX series cov cuab yeej) thiab cov tshuab ntxhua khaub ncaws ntub dej (tshwj xeeb yog cov khoom siv HP).
1. Kev sib xyaw thiab cov yam ntxwv ntawm Cov Toner Qhuav
Qhuav toner feem ntau muaj cov khoom hauv qab no:
(1) Pigments, uas ua cov xim kom ua tiav cov xim xav tau;
(2) Resin, feem ntau yog polyester, siab -molecular organic polymer uas yog khoom ntawm chav tsev kub. Cov resin no puag ncig cov xim xim thiab ua rau lub cev tseem ceeb ntawm toner;
(3) Fillers, tsub nqi tswj cov neeg ua hauj lwm dispersed nyob rau hauv cov resin, uas ceev los yog, yog hais tias tsim nyog, maj mam them ceev thiab tuav lub charger zog ntawm toner thiab adhesion pab;
(4) Nto additives los yog lwm yam additives, uas ntxiv txhim kho kev ua tau zoo ntawm toner;
(5) Cov khoom siv ntxiv rau cov ntawv thov tshwj xeeb, uas muab cov toner nrog cov khoom tshwj xeeb thiab cov yam ntxwv.
Cov khoom ntawm cov toner qhuav yog qhov zoo, xws li ntawm 6 mus rau 9 μm, nrog rau qhov loj me ntawm 8 μm. Thaum luam ntawv nrog cov toner qhuav, ib zaug cov duab raug xa mus rau lub substrate, cua sov yog siv los fuse lub toner nrog lub substrate. Thaum tshav kub kub ua rau cov toner hais kom solidify (xws li, resin melts), ua ib yam khoom polyester zaj duab xis. Nyob rau hauv tej yam kev mob, qhov nruab nrab thickness ntawm ib tug - txheej daim duab luam nrog qhuav toner yog hais txog 4 μm. Tsis muaj kev cuam tshuam rau kev tsim khoom, cov duab tuab tuaj yeem ua tiav los ntawm kev kho cov duab teeb pom kev zoo, feem ntau siv rau opaque dawb number case txheej los yog xim txheej uas yuav tsum tau tactile thickness.2. Kev sib xyaw thiab cov yam ntxwv ntawm Wet Toner (Electronic Ink) Cov khoom tseem ceeb ntawm cov toner ntub dej (electronic ink) siv hauv cov tshuab luam ntawv digital uas twb muaj lawm hauv kev lag luam yog raws li hauv qab no: (1) Cov Pigments, uas yog cov tshuaj pleev xim kom ua tiav cov xim uas xav tau; (2) Hloov kho polyethylene resin nrog lub iav hloov pauv kub, roj hmab {{14}. Thaum lub sij hawm tsim khoom, cov xim yog kneaded rau hauv polyethylene resin, ces tawg kom txo cov xim particle loj, tsim cov yam ntxwv lub hnub qub- zoo li toner hais; (3) Carrier kua, ib tug ntxhia roj, uas ib feem dissolves rau hauv cov pigment resin kua vim nws cov tshuaj muaj zog compatibility nrog polyethylene resin, altering ib tug resin nyob rau hauv resin. Lub xeev molten mus rau qhov kawg substrate; (4) Organic dispersants tso rau saum npoo ntawm cov toner ntub dej, siv kom ruaj khov thiab them cov toner particles (vim ntxiv cov hlau ntsev complexes); (5) Cov khoom siv ntxiv, cov khoom siv ntxiv ntxiv rau cov kua ua kua los xyuas kom meej cov electrostatic neutrality ntawm cov toner particles raws li tus nqi toner particles. ntub toner (electronic ink) yog li ntawm 2 μm, ntau me dua li cov toner qhuav. Feem ntau, qhov tuab ntawm ib qho - txheej duab luam tawm nrog cov toner ntub yog li 1.5 μm.
Thaum lub sij hawm luam ntawv, ua ntej hloov cov duab mus rau lub substrate, cua sov yuav tsum tau yaj lub toner. Feem ntau ntawm cov cab kuj ua kua evaporates, thiab cov toner particles solidify, tsim ib tug uniform saj zawg zog zaj duab xis ntawm lub substrate. Tom qab cov duab hloov mus, cov txheej txheem evaporation txuas ntxiv mus, thiab cov khoom nqa khoom ntxiv yuav ua tiav tag nrho ob peb hnub, tso cai rau cov polyethylene polymer rov qab mus rau nws lub xeev qub ntawm chav tsev kub. Digital Inkjet Imaging TechnologyDigital printing khoom siv digital inkjet imaging technology feem ntau siv ob hom ink: UV number case thiab dej-raws li ink.1. Muaj pes tsawg leeg thiab cov yam ntxwv ntawm UV InkTypical UV number case rau inkjet luam ntawv feem ntau suav nrog: (1) Cov xim, hauv av kom qis dua 150 nm, ruaj khov nrog cov dispersants kom tswj tau ntev - lub sij hawm ruaj khov ntawm cov dispersion; (2) Carrier kua, ib qho hnyav hnyav, feem ntau yog ib qho acrylate, muaj cov qauv molecules zoo sib xws (cov tshuaj molecules) daim ntawv polymers), uas yog sib xyaw ntawm photoinitiators thiab enhancers; (3) Monomers nrog ib qho kev ua haujlwm vinyl pab pawg, xaiv los ntawm ntau tus neeg sib tw los ua kom muaj kev sib raug zoo, yoog raws, huab cua tsis kam, thiab shrinkage zog; (4) Monomers nrog bifunctional active vinyl pawg (acrylate lossis enol ether); Txhim kho, muab tus cwj mem nrog rhiab heev rau ntau yam ntawm lub wavelengths los xyuas kom zoo kho kev ua tau zoo thoob plaws hauv cov txheej txheem number case, vim cov pa oxygen hauv huab cua tuaj yeem ua rau qeeb tus nqi kho ntawm lub substrate los yog number case txheej nto; (6) Surfactants, uas tswj qhov zoo li qub thiab dynamic nto nro ntawm tus number case, kom ntseeg tau tias cov xim number case (tsis muaj satellite, ceev ceev thiab tswj tau zoo) Cov tee dej ncav cuag lub substrate.Raws li UV teeb, tus number case yog kho, nrog photoinitiators tsim cov dawb radicals uas hnov mob nrog rau lwm yam xim (monomers) los ua tus ntoo khaub lig-txuas cov polymers lossis cov yeeb yaj kiab kho. Thaum tus ntoo khaub lig- txuas cov tshuaj tiv thaiv ua tiav (piv txwv li, tag nrho cov khoom sib txuas yog hla- txuas), tus number case tau qhuav tag.
Qhov tuab ntawm ib daim duab - txheej luam tawm nrog UV number case yog kwv yees li 4-6 μm. Vim yog cov tshuaj lom neeg uas xav tau los kho, UV number case muaj viscosity ntau dua piv rau cov dej -raws li tus number case, tab sis tib lub sijhawm, nws cov viscosity yog li ntawm rau lub sijhawm qis dua li ntawm UV offset lossis UV flexographic inks. Qhov no ua rau ntau qhov tshwm sim, uas yuav tau tham ntxiv hauv qab no.2. Kev sib xyaw thiab cov yam ntxwv ntawm Dej-Based InksWater-raws li inks siv nyob rau hauv kev lag luam muaj cov tshuab luam ntawv digital feem ntau muaj cov khoom nram qab no: (1) Dej-raws li cov cab kuj nruab nrab, uas ua rau 60% - 90% ntawm tus number case; (2) Pigments, uas muab cov xim uas xav tau, dispersed nyob rau hauv lub tsheb; 3. ruaj khov cov pigment dispersion rau lub sij hawm ntev; (4) Humectants, uas tiv thaiv cov dej hauv tus number case los ntawm evaporating thaum lub taub hau luam ntawv tsis raug kaw los yog tsis ua haujlwm; (5) Surfactants, uas pab txhawb kev tsim cov tee dej (tiv thaiv cov tee dej satellite) thiab txhim kho cov ntub dej ntawm cov ntaub ntawv uas tsis yog{17}} cov ntaub ntawv substrates; (6) Biocides, uas tiv thaiv microbial kev loj hlob; number case pH (solved CO2 nyob rau hauv cov huab cua tuaj yeem cuam tshuam rau tus number case pH); (8) Lwm yam additives, xws li chelating agents, defoamers, thiab solubilizers.Thaum qhuav tag, lub thickness ntawm ib tug tib daim duab luam tawm nrog dej -raws li tus number case yog feem ntau 0.2-m.0. Vim tias dej-raws li tus number case muaj qhov viscosity qis tshaj plaws, nws zoo haum rau siab -inkjet luam ntawv ceev. Txawm li cas los xij, cov dej viscosity tsawg-raws li inks muaj qhov tsis zoo: nws tsis tuaj yeem ua kom muaj kev tawg txaus ntawm cov khoom hnyav, xws li TiO2 hauv cov number case dawb, ua rau kev tawg yooj yim.