1. Kev ntsuas ntawm hydroxyethyl cellulose (HEC)
Hydroxyethyl cellulose (HEC) yog tsis-ionic, dej-soluble polymer muab tau los ntawm cellulose. Nws yog lub npe hu rau nws cov thickening, zaj duab xis-ua, thiab stabilizing cov khoom, suav nrog kev lag luam, suav nrog cov tshuaj, kev tsim kho, kev tsim kho, thiab inks. Hauv kev lag luam hauv Ink, Hec pabcuam pab ntau ntau yam kev ua haujlwm tseem ceeb uas txhim kho cov kev ua tau zoo thiab kev ua haujlwm zoo.
2. Lub luag haujlwm ntawm HEC hauv Ink Txheej Txheem
2.1 Rheology Hloov Kho
Ib qho ntawm thawj cov ntawv thov ntawm HEC hauv Inks yog li kev hloov kho kev ntseeg. Rheology sib xws rau qhov ntws thiab deformation cov yam ntxwv ntawm tus number case, uas yog qhov tseem ceeb rau kev siv xws li luam ntawv, txheej, thiab sau ntawv. HEC cuam tshuam cov viscosity thiab ntws tus cwj pwm ntawm inks, muab ntau cov txiaj ntsig:
Mortosposity tswj: HEC tuaj yeem hloov kho lub viscosity ntawm ink formulations kom ua tiav qhov xav tau qhov xav tau. Qhov no tseem ceeb heev rau ntau hom inks, xws li cov siv hauv tshuaj ntsuam luam ntawv, flexography, thiab gravure print profiles yuav tsum muaj rau kev ua tau zoo.
Flow tus cwj pwm: los ntawm kev kho cov khoom sib dhos, HEC pab tswj tus mem kua taub hau thinning tus cwj pwm, kom ua kom cov dej ntws nrawm dua hauv kev sib txawv. Qhov no yog qhov tshwj xeeb tshaj nyob rau hauv cov ntawv thov xws li inkjet luam ntawv, qhov twg tus number cas yuav tsum ntws tsis sib xws los ntawm kev nplua tsis muaj kev sib tsoo.
2.2 Kev Ruaj Ntseg Thiab Nceg
HEC Ua raws li lub stabilizer thiab tshem tawm tus neeg sawv cev hauv Ink formulations. Txoj haujlwm no tseem ceeb rau kev tswj cov homogeneity ntawm inks, tiv thaiv kev teeb tsa, thiab ua kom muaj kev ua tau zoo ib yam:
Kev kawm tau: Hauv cov inks pigmented, HEC pab kom cov pigocation uniformly dispersed thoob plaws cov qauv, tiv thaiv kev ua kom pom zoo. Qhov no ua rau muaj xim zoo sib xws thiab luam tawm zoo.
Emulsion Stability: rau cov inks uas yog emulsions, xws li cov uas siv rau lub suab ruaj khov, HEC tau sib cais, tiv thaiv theem sib cais thiab ua kom muaj kev sib cais.
2.3 Zaj duab xis tsim
Hi pab txhawb rau cov yeeb yaj kiab ua yeeb yam ntawm inks. Zaj duab xis ruaj khov thiab tsis txaus ntseeg yog qhov tseem ceeb rau lub durability thiab cov tsos ntawm cov luam ntawv:
Txheej Txheej Txheem Txheej Txheem: Thaum ua ntawv thov rau substrates, HEC pab daim ntawv qhia zoo ib yam uas cov adheres zoo, txhim kho qhov zoo ntawm cov ntawv luam txheej txheej.
Nta Kev Tiv Thaiv: Cov yeeb yaj kiab zaj duab xis ntawm HEC tseem ntxiv cov txheej tiv thaiv kev tiv thaiv, txhim kho lawv cov khoom siv tsis taus pa thiab ib puag ncig.
2.4 Cov dej ua ke
HEC muaj peev xwm khaws cov dej khaws cia lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov kua dej-ua cov inks:
Kev tswj kom qhuav: HEC pab tswj cov dej kom qhuav ntawm cov inks. Qhov no yog tshwj xeeb siv nyob rau hauv cov txheej txheem luam tawm qhov twg zuj zus kom qhuav yuav tsum zam cov teeb meem zoo li clogging lossis tsis zoo luam tawm zoo.
Kev ua haujlwm: los ntawm kev khaws cia dej, hec kom ntseeg tau tias tus number case tswj tau ua haujlwm zoo rau lub sijhawm ntev, uas yog qhov tseem ceeb hauv kev siv xws li screen luam tawm thiab flexography.
2.5 sib xyaw nrog lwm cov khoom
Hec yog sib haum nrog ntau cov kua mem ntshav, suav nrog cov kob, binders, thiab cov kuab tshuaj:
Tsim kev yooj yim: qhov tsis-ionic xwm ntawm HEC tso cai rau nws ua haujlwm zoo nrog ntau cov ntawv sau nrog kev hloov pauv kom ua tiav cov yam ntxwv ua tau zoo.
Solubility thiab ruaj khov: HEC yog soluble hauv ob qho tib si txias thiab dej kub, thiab nws tseem nyob ruaj khov dua li ntau ntau ntau yam, ua rau nws haum rau ntau cov number cask.
3. Cov kev siv tshwj xeeb hauv cov hom sib txawv
3.1 npo luam ntawv inks
Hauv kev tshuaj ntsuam luam ntawv, qhov twg inks yuav tsum yog tuab kom tiv thaiv kis tau kis ntawm mesh, HEC yog siv los tswj viscosity thiab txhim kho cov ntsiab lus sau. Nws ua kom pom tseeb tias tus cwj mem muaj qhov xwm txheej ua raws li lub vijtsam thiab kev hloov pauv kom zoo rau lub substrate.
3.2 flexographic thiab gravure inks
Txog flexographic thiab gravure inks, uas xav tau cov viscosity profiles rau kev hloov pauv kom raug rau kev hloov kho kom raug thiab kev ua raws li qhov ua tiav cov yam ntxwv raug. Nws kom ntseeg tau tias cov inks ua ib qho nyias nyias, txawm tias txheej ntawm cov ntawv luam tawm thiab tom qab ntawm substrate.
3.3 Inkjet inks
Nyob rau hauv inkjet inks, tshwj xeeb yog cov qauv dej-raws, HEC AIDS hauv kev tswj cov viscosity kom ntseeg tau du dav hlau thiab tiv thaiv cov pob zeb du. Nws kuj tseem pab tswj cov kev ncua xim xim, qhov tseem ceeb rau kev ua kom muaj cov khoom lag luam siab zoo, cov luam tawm muaj kuab heev.
3.4 Txheej inks
Nyob rau hauv txheej inks, xws li cov neeg siv ua kom tiav los yog tiv thaiv txheej txheem, hec ua rau muaj kev tsim ntawm ib zaj yeeb yaj kiab du, uniform. Nws pab hauv kev ua tiav qhov kev ua kom muaj kev zoo nkauj thiab cov khoom muaj nuj nqi ntawm cov txheej, suav nrog cov lus ci, ruaj khov, thiab tsis kam, thiab tsis kam, thiab tsis kam mus rau sab nraud yam.
4. Qhov zoo ntawm kev siv HEC hauv Inks
Txhim kho luam ntawv zoo: Los muab cov xim tsis sib xws thiab cov xim tsis sib xws, HEC muab cov xim sau ua tau zoo, suav nrog cov xim uas yog thiab qhov tseeb.
Kev ua haujlwm zoo: Cov dej tuav haujlwm thiab cov txheej txheem luam tawm ntawm HEC kom zoo li cov khoom siv luam tawm zoo li lub ntsej muag zoo li nozzle clogging los yog tsis sib luag hauv qab.
Versatility: HEC Qhov sib raug zoo nrog ntau qhov number case thiab nws muaj peev xwm ua haujlwm hla cov kua txiv sib txawv ua rau nws muaj ntau yam ntxiv rau cov ua yeeb yam hauv number casulators.
5. Ib puag ncig thiab kev txiav txim siab nyab xeeb
HEC tau muab los ntawm cellulose, cov peev txheej txuas ntxiv dua, ua rau muaj kev xaiv ua ib puag ncig ib puag ncig rau cov hluavtaws polymers. Nws cov biodegradity kuj ntxiv rau nws cov txiaj ntsig ib puag ncig. Ib qho ntxiv, HEC feem ntau suav tias muaj kev nyab xeeb rau siv hauv Inks, qhia txog qhov tsawg kawg nkaus kev pheej hmoo rau kev noj qab haus huv thiab kev nyab xeeb thaum daws tau zoo.
Hydroxyethyl cellulose (HEC) yog qhov tseem ceeb ntawm cov ink formulations, muab ntau yam txiaj ntsig los ntawm viscosity tswj thiab stabilization rau zaj duab xis tsim thiab dej ceev. Nws cov versatility thiab sib thooj nrog ntau cov kua mem kua ua kom nws muaj qhov tsis zoo ntxiv rau kev ua tiav cov khoom zoo, zoo ib yam, thiab txuag cov number case. Raws li kev lag luam hauv Inex txuas ntxiv mus Evolve, lub luag haujlwm ntawm HEC yog yuav nthuav ntxiv, tsav los ntawm nws cov khoom zoo thiab muaj nuj nqi.
Lub Sijhawm Post: Feb-18-2025