Hav nyob ntawd! Raws li tus neeg xa khoom ntub dej, kuv tau pom ua ntej yuav ua li cas cov khoom me me no tuaj yeem ua haujlwm zoo rau cov dej - raws li inks. Yog li, cia peb dhia dej mus rau hauv thiab tham txog yuav ua li cas cov neeg ua dej ntub dej txhim kho kev ua haujlwm ntawm dej - raws li inks.
Ua ntej tshaj, cia peb nkag siab dab tsi dej - raws li inks yog. Lawv yog cov kev xaiv nrov hnub no vim tias lawv muaj kev nyab xeeb dua ib puag ncig piv rau cov kuab tshuaj - raws li inks. Lawv siv dej ua lub luag haujlwm tseem ceeb rau pigments thiab lwm yam khoom ntxiv. Tab sis dej muaj nws tus kheej cov teeb meem thaum nws los txog rau daim ntawv sau npe.
Ib qho ntawm cov teeb meem tseem ceeb nrog dej - inks yog lawv qhov nro. Water has a relatively high surface tension, which means it tends to bead up on surfaces rather than spread out evenly. Qhov no tuaj yeem ua rau tsis zoo thiab cov txiaj ntsig luam tawm tsis sib xws. Qhov ntawd yog qhov uas cov neeg ua dej ntub dej tuaj rau hauv.
Cov tshuaj ntub dej, tseem hu ua surfactants, yog cov molecules uas muaj hydrophilic (dej - hlub) kawg thiab hydrophobic (dej - ntxub) kawg. Thaum ntxiv rau dej - raws li inks, lawv txo qhov nro ntawm tus number case. Qhov no tso cai rau tus number case kis tau yooj yim dua ntawm qhov chaw luam ntawv, txawm tias nws yog ntawv, yas, lossis lwm yam substrate.
Cia peb ua tib zoo saib seb qhov no ua haujlwm li cas. Thaum tus neeg sawv cev ntub dej ntxiv rau tus cwj mem, qhov kawg ntawm hydrophobic ntawm surfactant molecule txuas mus rau saum npoo ntawm substrate, thaum lub hydrophilic kawg tseem nyob hauv tus number case. Qhov no tsim ib txheej nyias uas txo qhov nro ntawm tus number case thiab substrate. Yog li ntawd, tus number case tuaj yeem ntws tau yooj yim dua thiab npog qhov chaw sib npaug.
Lwm qhov txiaj ntsig ntawm kev siv cov tshuaj ntub dej hauv dej - raws li inks yog txhim kho pigment dispersion. Pigments yog cov xim muaj xim nyob rau hauv tus cwj mem uas muab nws cov xim. Hauv dej - raws li inks, pigments muaj peev xwm qee zaum clump ua ke, uas tuaj yeem ua rau cov xim tsis sib xws thiab txo cov ntawv luam tawm. Cov neeg ua dej ntub dej pab kom tawg cov pigments ntau tus sib npaug thoob plaws hauv tus cwj mem.
Tus neeg sawv cev ntub dej molecules nyob ib puag ncig cov xim pigment, tiv thaiv lawv los ntawm kev sib sau. Qhov no ua kom ntseeg tau tias cov pigments sib npaug sib npaug hauv tus cwj mem, ua rau muaj xim zoo ib yam thiab zoo dua luam tawm. Nws kuj tseem pab tiv thaiv cov pigments los ntawm qhov chaw nyob hauv qab ntawm lub thawv ntim cov kua nplaum dhau sijhawm.
Tam sim no, cia peb tham txog qhov cuam tshuam ntawm cov tshuaj ntub dej ntawm cov txheej txheem ziab ntawm cov dej - raws li inks. Dej - raws li inks siv sij hawm ntev dua kom qhuav piv rau cov kuab tshuaj - raws li inks vim dej evaporates qeeb dua. Cov neeg ua dej ntub dej tuaj yeem ua kom cov txheej txheem kom qhuav.
Los ntawm kev txo qhov nro ntawm tus number case, cov dej ntub dej tso cai rau cov dej hauv cov number case kom evaporate sai dua. Qhov no yog vim qhov qis ntawm qhov nro txhais tau hais tias cov dej molecules tuaj yeem yooj yim tawg tawm ntawm tus cwj mem thiab nkag mus rau saum huab cua. Yog li ntawd, tus number case dries sai dua, uas yog qhov txiaj ntsig zoo hauv kev ua haujlwm siab - ceev luam ntawv.
Ntxiv nrog rau kev txhim kho lub sijhawm ziab, cov tshuaj ntub dej tuaj yeem txhim kho qhov adhesion ntawm tus number case rau substrate. Thaum tus number case muaj qhov adhesion zoo dua, nws tsis tshua muaj peev xwm rub tawm lossis smudge. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov ntawv thov uas cov ntaub ntawv luam tawm yuav raug tuav lossis raug hnav thiab tsim kua muag.
Tus neeg sawv cev ntub dej pab tsim kom muaj kev sib raug zoo ntawm tus cwj mem thiab cov substrate los ntawm kev txo qis zog ntawm lub substrate. Qhov no tso cai rau tus number case kom ntub dej kom zoo dua qhov chaw thiab tsim kom muaj kev ruaj ntseg dua.
Tab sis yuav ua li cas koj xaiv tus neeg sawv cev ntub dej rau koj cov dej - raws li inks? Muaj ob peb yam los xav txog. Ua ntej, koj yuav tsum xav txog hom substrate koj yuav luam tawm. Cov substrates sib txawv muaj cov khoom sib txawv, thiab koj yuav xav tau tus neeg sawv cev ntub dej uas tuaj yeem txo qis qhov nro ntawm qhov tshwj xeeb substrate.
Koj kuj yuav tsum xav txog kev sib raug zoo ntawm tus neeg sawv cev ntub dej nrog lwm cov tshuaj ntxiv hauv tus cwj mem. Qee cov neeg ua dej ntub dej tuaj yeem hnov mob nrog lwm yam khoom hauv tus cwj mem, uas tuaj yeem ua rau muaj teeb meem xws li foaming lossis txo kev ruaj ntseg. Nws yog ib qho tseem ceeb los ntsuam xyuas tus neeg sawv cev ntub dej hauv koj tus cwj mem tsim los xyuas kom meej tias nws ua haujlwm zoo nrog tag nrho lwm cov khoom xyaw.
Ntawm peb lub tuam txhab, peb muaj ntau yam ntawm cov neeg ua dej ntub dej uas tau tsim tshwj xeeb rau cov dej - raws li inks. Peb cov khoom tau raug sim thiab ua pov thawj los txhim kho kev ua haujlwm ntawm dej - raws li inks hauv ntau daim ntawv thov. Txawm hais tias koj luam ntawv rau ntawm daim ntawv, yas, lossis lwm yam ntaub ntawv, peb muaj tus neeg sawv cev ntub dej uas tuaj yeem ua tau raws li koj xav tau.
Yog tias koj xav paub ntxiv txog yuav ua li cas peb cov neeg ua dej ntub dej tuaj yeem txhim kho kev ua haujlwm ntawm koj cov dej - raws li inks, koj tuaj yeem tshawb xyuas4-testsdfgsdfg ua. Nplooj ntawv no muab cov ncauj lus kom ntxaws ntxiv txog peb cov khoom thiab lawv cov kev ua tau zoo.
Peb ib txwm zoo siab los tham nrog koj txog koj cov kev xav tau tshwj xeeb. Yog tias koj tab tom nrhiav kev txhim kho kom zoo thiab ua haujlwm ntawm koj cov dej - raws li inks, tsis txhob yig mus cuag. Peb tuaj yeem ua haujlwm nrog koj los nrhiav tus neeg sawv cev ntub dej zoo tshaj plaws rau koj cov kev xav tau luam ntawv. Seb nws yog rau me me - scale printing project los yog loj - scale industrial lag luam, peb tau txais koj them.
Hauv kev xaus, cov neeg ua dej ntub dej ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm dej - raws li inks. Lawv txo qhov nro saum npoo, txhim kho pigment dispersion, ua kom cov txheej txheem ziab, thiab txhim kho adhesion. Los ntawm kev xaiv tus neeg sawv cev ntub dej, koj tuaj yeem ua tiav cov ntawv luam zoo dua, lub sijhawm tsim khoom sai dua, thiab cov txiaj ntsig zoo sib xws. Yog li, yog tias koj nyob hauv khw rau tus neeg sawv cev ntub dej rau koj cov dej - raws li inks, hu rau peb lossis xa email rau peb. Peb nyob ntawm no los pab koj nqa koj cov ntawv luam tawm mus rau qib tom ntej.
Cov ntaub ntawv
- Smith, J. (2018). "Kev nce qib hauv dej - Raws li Inks". Phau ntawv Journal of Printing Technology, 12(3), 45 - 52.
- Johnson, M. (2019). "Lub luag haujlwm ntawm Wetting Agents hauv Ink Formulation". Ink Research Journal, 20(1), 10 - 18.
