Hnyav-based ink yog hais txog ib qho memk system uas siv cov kuab tshuaj organic los yog cov kuab tshuaj kom tawg pigments los yog tuag, tsim ib qho tshuaj tsw qab. Cov inks no muab cov duab siab zoo durability thiab kuj muaj cov khoom siv raw. Txawm li cas los xij, cov evaporation ntawm cov kuab tshuaj tuaj yeem ua rau ib puag ncig pa phem, thiab cov kuab tshuaj uas tseem nyob hauv theem ntawm kev loj hlob sai. Hauv kev teb rau kev txhawj xeeb ib puag ncig, ib qho tshiab ntawm number case, hu ua eco-kuab number case number case (tsawg-hnyav mem kua), tau qhia. Cov number case no ua rau muaj kev phom sij ib puag ncig thiab yog suav tias yog yav tom ntej kev coj ntawm cov kuab tshuaj.
Pawg ntawm number case raws li luam tawm thev naus laus zis:
Inkjet inks tau categorized raws li lawv cov number case hauv paus, uas suav nrog cov inks dej-raws li cov inks, thiab UV inks. Cov kuab tshuaj hauv cov inks siv cov kuab dej tsis-dej-solible raws li lub ntsiab tivthaiv kom yaj cov xim lossis ua kom muaj txiaj ntsig. Qhov sib xyaw ntawm cov kuab tshuaj-raws li feem ntau suav nrog cov coungants, cov kuab tshuaj, cov neeg sawv cev, cov neeg sawv cev hlau, thiab lwm yam ntxiv. Hauv qab no yog cov lus qhia luv luv rau cov khoom xyaw tseem ceeb: Colorants thiab cov kuab tshuaj.
1. Coungants
Cov yeeb yaj kiab uas muaj cov inkjet suav nrog cov dyes thiab pigments. Tus nqi ntawm cov xim xim feem ntau ua rau {{{{{0}}. 5% ntawm tag nrho cov kua ntses muaj nyob nruab nrab ntawm 0.5% thiab 5%. Ob leeg dyes thiab cov pigments tuaj yeem tsis yog-ionic, cationic, anionic, lossis sib xyaw ntawm cov no. Chemically hais lus, dyes muaj li ib qho molecules nyob rau hauv tus number case hauv tus number case, thaum pigments yog suav nrog kev sib sau ua ke ntawm cov xim lwg me me.
Siv cov dyes raws li counnants muaj qhov zoo xws li yooj yim ntawm kev npaj, qis xim gamut, thiab txo kev pheej hmoo ntawm txhaws cov nozzles. Dye-based inks feem ntau ua tau zoo nyob rau hauv cov xim yug thiab tuaj yeem ua tiav qhov luam tawm zoo sib piv rau cov nyiaj ntsev ntawm cov khoom zoo. Txawm li cas los xij, zas acks muaj cov inks tsis muaj zog, tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm kev teeb pom kev zoo, tso ruaj khov, thiab anti-oxidation. Tus neeg zas xim molecules yog cov tshuaj tsis ruaj khov ua raws li qhov kaj, ya raws, thiab cov pa oxygen, ua rau cov xim fading. Ib qho ntxiv, zas inks feem ntau yog kicky heev txog cov luam ntawv nruab nrab thiab tej zaum xav tau tshwj xeeb substrates. Ntawm daim ntawv luam ntawv tsis tu ncua, uas yog tsim los ntawm cov ntawv sib cuam tshuam fibers uas tau sib kis nrog cov fibers thiab ua rau blurring, uas ua rau muaj kev cuam tshuam loj heev.
Xim-raws li cov inks, tsim los daws qhov tsis txaus ntseeg ntawm cov xim pleev xim rau ntawm cov xim av, muaj kev sib sau ua ke ntawm cov xim lwg me. Cov inks no ruaj khov, muab cov nyom zoo, cov cua sov kuj, thiab tiv thaiv oxidation cov khoom, ua rau lawv tsis txhob raug hloov huab cua. Txawm li cas los xij, xim inks muaj cov tsis muaj txiaj ntsig ua kua ruaj khov thiab yuav ua rau cov pa tsis txaus thiab cov teeb meem rho tawm thaum lub sijhawm khaws cia ntev. Raws li qhov zoo thiab qhov tsis zoo ntawm ob hom xim, thaum muaj kev sib tw ua kom zoo rau sab hauv tsev yog cov xim hauv tsev ntau dua thiab zoo dua rau cov ntawv thov sab nraum zoov. Cov kuab tshuaj uas feem ntau yog siv cov pigments raws li cov xim, vim yog ob qho kev ua lag luam ntawm cov kuab tshuaj, nrog zas xim hauv cov inks tsis tshua muaj.
2. Cov kuab tshuaj
Cov kuab tshuaj yog cov kua txiv molatile thiab yog ib qho tseem ceeb ntawm cov kuab tshuaj. Lawv pab tswj kav hauv kab viscosity, thaj nro, thiab ziab cov khoom. Thaum tus kua mem yog pauv mus rau lub substrate, cov kuab tshuaj uas tsis tshua muaj vim yog capillary kev ua si sai sai, soliorifying lub binder thiab counorants rau saum npoo, yog li muab txhuam cov mem kua. Cov kuab tshuaj yog ob qho tib si cov kuab tshuaj rau cov ciaj sia tsis sib xws thiab cov polymers thiab ua rau cov tshuaj kom haum rau cov pa memcts.
Cov kuab tshuaj uas muaj ntau yam los ntawm cov qauv tshuaj lom neeg, suav nrog cov hom hauv qab no:
Aliphatic cov kuab tshuaj: Cov no muaj cov tub rog txom nyem, muaj ntxhiab tsw me, thiab yog tus tsis zoo (piv txwv li, roj av ether, roj av, n-hexane).
Cov tshuaj uas muaj ntxhiab tsw qab: Cov no muaj cov khoom siv solubility zoo tab sis yog cov tshuaj lom thiab muaj cov ntxhiab tsw zoo (piv txwv li, benzene, toluene, xyab).
Kaum ntxiv: Cov no muaj cov solubility zoo heev, ib qho muaj zog fruity tsw, thiab yog kim dua (piv txwv li, Ethyl acetate, Butyl acetate).
Cawv: Cov qauv no muaj qee yam tsw zoo, thiab muaj tus nqi sib txawv (piv txwv li ethanol, isopropanol, butylol, ethylene glycol).
Khoom siv: Cov no muaj solubility muaj zog heev, tab sis lawv cov ntxhiab tsw ntxhiab tsw tsis txaus ntseeg (piv txwv li, acetone, cyclohexanone).
Lus coj neeg: Cov no muaj zog solubility rau qee cov resins, muaj ntxhiab me me, thiab cov tshuaj pleev cov tshuaj tiv thaiv kab mob tab sis yog kim dua (piv txwv li Glycol Ethaws).
Cov kuab tshuaj sib xyaw: Cov no sib xyaw ntawm ob lossis ntau cov kuab tshuaj thiab tuaj yeem hloov kho kom tswj tau qhov ziab ntawm tus cwj mem.
Cov kuab tshuaj yog cov lus qhia txog bowing: Tsawg-boiling (hauv qab 100 degree), nruab nrab qib), thiab high-boiling (150-250 degree). Cov kuab tshuaj ua si ib lub luag haujlwm tseem ceeb hauv kev txiav txim siab lub viscosity, ziab ceev, thiab zoo ntawm lub number cask zaj duab xis. Los ntawm xaiv cov kuab tshuaj yog, nws muaj peev xwm sib npaug tshuab ziab khaub ncaws ceev thiab number case ua haujlwm, nrog rau txo cov nqi ntau lawm. Organic cov kuab tshuaj yog thawj feem ntawm cov kuab tshuaj hauv cov inks, nrog volatile organic cov kuab tshuaj tau ua kom ze li 90% ntawm inkjet inks.
