Txhawm rau ua cov xim dub, cov xim dub yuav tsum tau ntxiv rau xim. Nyob rau theem tam sim no, pigment carbon dub pigment tseem yog qhov kev xaiv vim nws muaj qhov zoo ntawm lub zog tinting zog thiab tus nqi qis.
Ua ntej, ntsuas tus nqi ntawm cov resin, carbon dub pigment, thiab hnyav raws li cov qauv thiab sib tov rau hauv ib qho kev faib ua feem. Tom qab soaking rau ib lub sij hawm ntawm lub sij hawm, cov pigments yuav zoo dua moistened. Ib qho nyiaj ntawm tus neeg sawv cev ntub dej kuj tuaj yeem ntxiv raws li qhov xwm txheej tiag tiag. Tom qab ntawd, pre-dispersion pib ua kom zoo dua moisten cov ntaub ntawv hauv paus thiab pigments thiab npaj rau kauj ruam tom ntej ntawm kev sib tsoo. Txij li thaum carbon dub pigment yog ib qho khoom, nws lub ntiajteb txawj nqus yog feem ntau ntau dua li cov xim. Yog hais tias nws yog unevenly tov thiab dispersed nyob rau hauv cov xim, nws yuav precipitate thiab agglomerate thaum lub sij hawm cia. Cov cuab yeej sib tsoo muaj xws li peb-cov menyuam mills, xuab zeb mills, thiab pob zeb. Ntawm lawv, kev sib tsoo efficiency ntawm cov xuab zeb mills thiab cov sij hawm ntawm cov pob zeb yog qis dua. Txawm li cas los xij, peb-cov menyuam zeb grinds cov khoom siv high-viscosity. Yog tias nws yog siv rau kev sib tsoo zoo, Yog tias qhov kev xav tau ceev yog qhov nruab nrab thiab cov khoom siv yog qhov ntom ntom, lub tshuab peb-cov menyuam tuaj yeem siv tau. Cov xuab zeb zeb tuaj yeem zom kom zoo dua qub, yog li cov xuab zeb zeb feem ntau siv rau cov khoom loj loj.
Xaiv cov cuab yeej sib tsoo tsim nyog raws li qhov yuav tsum tau ua ntawm cov khoom siv. Ntxiv dispersant thiab defoaming tus neeg saib xyuas thaum sib tsoo tuaj yeem ua rau lub sijhawm sib tsoo kom luv thiab ua tiav cov txiaj ntsig xav tau. Nyob rau hauv qhov kev txiav txim ntawm shear quab yuam, cov pa roj carbon dub pigment aggregates thiab hais lawv tus kheej yog condensed thiab cov cua npuas uas muaj yog shredded thiab tawm. Cov hmoov loj dua yog hauv av mus rau qhov tshwj xeeb fineness. Tau cov pigments dispersed tusyees thiab finely nyob rau hauv cov xim. Tom qab npaj cov xim muab tshuaj txhuam, mus rau txheej txheej xim sib xyaw. Siv cov cuab yeej sib xyaw kom sib xyaw cov xim pleev xim nrog cov tshuaj resin, hnyav, tshuaj ntxiv thiab lwm yam uas yuav tsum tau ua rau cov xim los npaj cov xim xim. Cov khoom siv xim sib xyaw tuaj yeem siv lub thawv nrog nplawm.
Tom qab ntawd nws yuav tsum tau lim kom tshem tawm coarse pigment hais, pleev xim rau ntawm daim tawv nqaij thiab impurities sib xyaw thaum lub sij hawm tsim khoom los tiv thaiv cov xim los ntawm clumping thiab flocculating thaum lub sij hawm cia.
Txoj Kev Npaj Ntawm Carbon Dub Rau Ink
Oct 06, 2023
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