Cov number case dej ua ke yog cov khaub ncaws hnav khaub ncaws uas muaj los ntawm kev sib xyaw ntawm cov kev sib xyaw, cov pigments, thiab ntxiv. Nws yog feem ntau muaj dej-soluble resins, cov organic pigments, cov kuab tshuaj, thiab lwm yam kev sib ntxiv. Dej-raws li cov innks yog qhov tshwj xeeb rau cov luam tawm uas yuav tsum ua kom huv si rau haus luam yeeb, dej cawv, haus, thiab cov menyuam yaus cov khoom ua si.
Kev faib tawm cov dej hauv dej:
Niaj hnub nimno inks feem ntau yog categorized rau plaub hom loj raws li lawv cov luam ntawv phaj styles:
Noj tes num number cas:Siv rau cov ntawv luam tawm, ntawv xov xwm, ntawv nthuav qhia, cov ntaub ntawv, thiab ledgers. Qhov kev txhais cov ntsiab lus ntawm kev tuav luam tawm yog tias qhov chaw number case ntawm lub phaj yog tsa tau muab piv rau cov chaw uas tsis yog-inked. Cov ntawv luam tawm dawb yog cov ntawv luam tawm ntxiv raws li cov ntawv luam tawm thiab cov ntawv thov, cov number case copypress, thiab cov number caseberry flexographic reckographic.
Planographic num:Haum rau Lithographic Printing, qhov twg lub tshuab luam ntawv yog tiaj tus thiab ob qho tib si cov luam tawm thiab cov chaw luam tawm yog nyob rau tib lub dav hlau. Qhov chaw number case yog oloophilic (roj-hlub), thiab cov chaw tsis muaj tshuaj yog hydrothilic (cia siab rau ntawm cov roj-dej tshuaj. Kev nthuav tawm cov dej yuav tsum muaj dej tsis kam thiab tau muab faib ua cov inks ntxiv, lub web offset inks, thiab lwm tus.
Gravure OK:Siv nyob rau hauv gravatory printing, qhov twg chk yog thov mus rau qhov chaw recessed ntawm lub phaj. Cov chaw tsis yog luam tawm yog so huv, thiab tom qab ntawd luam ntawv ua tiav. Gravure inks tau faib ua engravied grarraved gravure inks thiab kev ua npuas.
Vijtsam luam tawm num luam ntawv:Number case siv rau luam ntawv los ntawm mesh ntawm lub vijtsam. Vijtsam luam ntawv cov ntawv luam tawm tau muab faib ntxiv rau hauv stencil inks thiab silk screen inks.
Cheebtsam ntawm cov kua dej-based:
Dej-soluble Resin:Dej-soluble lossis dej-dispersible resins pab li cov phau ntawv hauv dej-raws li cov ink viscosity, adhesion, ci, kom qhuav, thiab tshuab luam ntawv. Dej-raws li cov inks tau tsim los ntawm cov txheej txheem tshuaj lom neeg thiab kev sib xyaw ua ke ntawm cov dej polymers, cov xim muaj zog, resins, surfactants, thiab lwm yam ntxiv. Kev siv dej es tsis txhob lom cov kuab tshuaj lom neeg 30-70}}} Cov kws sau qoob loo
Pigments:Organic thiab inorganic pigments yog siv nyob rau hauv dej-ua inks. Cov Inins feem ntau siv nyob rau hauv cov dej-ua cov inks yog alkaline-soluble, yog li cov pigments uas tiv taus rau cov neeg mob alkaline yuav tsum raug xaiv. Qhov kev rho tawm ntom ntom ntawm cov pigments hauv cov kua dej-based yog qhov siab dua li hauv cov kuab tshuaj khov kho. Dej lub ntsej muag muaj zog thiab polarity sib txawv heev los ntawm cov kuab tshuaj, uas ua rau xim dispersion ntau dua thiab tsis muaj ink stability, viscosity, thiab ph. Txhawm rau daws cov teeb meem ruaj khov, surfactants yog ntxiv rau kev nce ib lub sij hawm ntawm cov cob thiab dej thiab cov xim thiab dej-soluble binder.
Ntxiv:Ntau yam ntxiv yuav tsum tau txhim kho kev ua haujlwm ntawm cov inks. Cov khoom ntxiv suav nrog:
Defoamer:Tshem tawm ua npuas dej hauv number case, feem ntau yog siv ntawm qhov sib piv ntawm 1-2%.
Stabilizer:Tiv thaiv tus mem kua los ntawm coagulating lossis moulding lossis kev thauj khoom thaum lub sij hawm cia lossis thauj khoom thiab tswj tus kua mem kua viscosity thiab pH, feem ntau siv ammonia lossis ethanolamine.
Lwm yam kev ntxiv ntxiv:Dispersants, cov tshuaj tiv thaiv kev ua haujlwm, cov neeg saib xyuas theem qis, thickeners, swb cov neeg sawv cev, thiab cov neeg sawv cev.
Cov kuab tshuaj:Dej-based inks siv cov kuab tshuaj kom yaj cov resins, kho viscosity, thiab tswj kom qhuav nrawm. Cov kuab tshuaj no feem ntau dej thiab cov cawv me me, xws li Ethanol, Butanol, thiab Isopropanol. Cov kuab tshuaj no txhim kho lub peev txheej, txhim kho cov xim dispersion, thiab ua kom nrawm rau kev nkag mus, thaum tseem txo ua npuas dej.
Cov Txheej Txheem Ntau Lawm:
Sib tsoo cov xim muab tshuaj sib tsoo:
Dej-soluble resins, ntxiv, thiab dej yog sib xyaw thiab dispersed siv cov khoom siv nrawm thiab sib tsoo cov khoom siv los ua cov xim muab tshuaj txhuam.
Ink Tsim:
Qhov npaj tau muaj cov tshuaj txhuam hniav yog tov nrog ntxiv cov tshuaj ntxiv thiab dej ntxiv, thiab cov kua mem hluav taws xob ntxiv thiab tawg kom ua tiav cov kev xav tau zoo, ci, thiab muaj zog xim. Tus number case yog ces lim thiab ntim.
Cov Ntsuas Cov Ntsiab Lus:
Xim:Ze rau cov qauv qauv.
Ke:Tsawg dua 20 microns (ntsuas los ntawm 0-50 micrometer scraper finoge).
Viscosity:20 ± 5 vib nas this (ntsuas los ntawm rigosha4 # khob ntawm 25 degree).
PH tus nqi:8. {{0 - 9.5 (ntsuas los ntawm lub ntsuas phapable portable).
Cov Hlau Hlau Cov Ntsiab Lus:Conforms rau thoob ntiaj teb cov qauv khoom ntsuab ib puag ncig.
Cov khoom lag luam tiv thaiv:Ua tau raws cov qauv muaj feem xyuam.
Kev Siv Yuav Tsum:
Sib xyaw kom zoo ua ntej sivTxhawm rau kom ntseeg tau tias muaj kev sib xyaw ua ke.
Npog kom nruj dua tom qab sivTxhawm rau tiv thaiv kev ua paug thiab tawv nqaij.
Lim impuritiesNyob rau hauv cov number case ink ua ntej rov siv dua.
Khaws rau hauv qhov chaw txias, qhuavthiab zam kev tshwm sim rau kev kub ntxhov lossis kev tshav ntuj. Dej-based inks feem ntau muaj lub txee txee kom txog li ib xyoos nyob rau hauv cov neeg muaj kev cia kom zoo.
Kho viscosity nrog dejYog tias xav tau.
Dej-based number case yog lub tshuab nqus dej, kev nyab xeeb rau lwm yam kuab tshuaj-raws li cov inks, thiab nws cov kev siv yuav pab txhim kho cov kev cuam tshuam ib puag ncig ntawm cov luam ntawv.
