Daim ntawv thov ntawmHydroxypropyl Methyl Cellulosehauv Ink Printing
Tus number case yog tsim los ntawm cov xim, cov khoom sib txuas thiab cov neeg ua haujlwm pabcuam (hydroxypropyl methylcellulose), uas yog tov thiab dov.
Npaj rau tus cwj mem. Xim, lub cev (feem ntau yog cov khoom rheological ntawm tus number case xws li nyias qhov sib xws thiab fluidity yog hu ua lub cev ntawm tus number case) thiab kev ua kom qhuav yog peb qhov tseem ceeb tshaj plaws ntawm tus number case.
Instant hydroxypropyl methylcellulose rau number case printing yog ib qho tsw, tsis qab, tsis muaj tshuaj lom dawb hmoov.
Nws swells mus rau hauv ib tug ntshiab los yog me ntsis cloudy colloidal tov nyob rau hauv dej txias. Nws muaj cov yam ntxwv ntawm thickening, bonding, dispersing, emulsification, film-forming, suspension, adsorption, gelation, deg kev ua si, dej tuav thiab tiv thaiv colloid. plays lub luag haujlwm tseem ceeb hauv.
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Hydroxypropyl methylcellulose muaj peb viscosities ntawm 100,000, 150,000, thiab 200,000. Lub viscosity yog tus yam ntxwv ntawm cov kua dej ntws.
Ib qho qhia txog qhov tsis kam (los yog kev sib txhuam sab hauv) rau kev txav. Nyob rau hauv tus txheej txheem ntawm offset printing, ib tug tej yam viscosity yog tsim nyog los ua kom tus number case hloov ib txwm.
Nws yog qhov tseem ceeb rau kev xa khoom thiab kev xa mus, thiab nws kuj yog ib qho tseem ceeb rau kev txiav txim siab ceev, clarity thiab gloss ntawm imprinting. Ink viscosity
Yog tias nws loj dhau, nws yuav nyuaj rau kev hloov pauv thiab hloov pauv, yog li tus lej ntawm tus lej ntawm qhov teeb tsa yuav tsis txaus, ua rau muaj qhov liab qab ntawm cov duab thiab cov ntawv los tsim cov qauv. Ib yam li ntawd, viscosity
Yog tias nws loj dhau lawm, nws kuj yog ib qho yooj yim uas yuav ua rau daim ntawv yog fluffed thiab hmoov, los yog ua rau lub tev ntawm daim ntawv luam tawm. Tab sis yog tias viscosity tsawg dhau, nws yooj yim los tsim
Floating thiab qias neeg, nws yuav ua rau tus number case emulsification hauv qhov mob hnyav, yog tias nws tsis tuaj yeem tswj kev sib kis thiab hloov mus, thiab maj mam nyob rau hauv tus number case.
Pigment particles accumulates nyob rau hauv rollers, luam ntawv daim hlau thiab pam vov, thiab thaum lub tsub zuj zuj mus txog ib theem, nws yuav ua rau smudging.
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Hydroxypropyl methyl cellulosemuaj adhesion zoo, zam qhov adhesion ntawm tus number case thaum lub sij hawm luam ntawv
Nws tsis phim qhov kev ua tau zoo thiab kev luam ntawv ntawm lub substrate, ua rau cov ntawv hmoov, lint, tsis zoo number case overprinting, luam ntawv
Kev luam ntawv tsis ua haujlwm xws li daim hlau qias neeg.
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Hydroxypropyl methylcellulose muaj thixotropy zoo, zam cov thixotropy ntawm tus number case thaum lub sij hawm luam ntawv.
Kev luam ntawv tsis ua haujlwm xws li "cov kua nplaum tsis zoo", hloov tus cwj mem tsis sib xws, thiab nthuav dav loj ntawm cov dots tshwm sim los ntawm qhov tsis zoo.
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Hydroxypropyl methylcellulose muaj adhesion siab heev, nyob rau hauv tus txheej txheem ntawm offset printing, lub tinting zog ntawm tus number case tsis yog tsuas yog ncaj qha.
Nws muaj feem xyuam rau cov nyhuv luam ntawv thiab qhov zoo ntawm cov khoom luam tawm, thiab nws kuj tseem muaj feem cuam tshuam nrog tus lej ntawm ib chav tsev. Yog koj xaiv
Kev siv cov inks uas muaj zog tinting zog yuav haus cov number case tsawg dua inks nrog lub zog tinting tsis muaj zog, thiab cov txiaj ntsig luam ntawv zoo tuaj yeem tau txais.
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Hydroxypropyl methylcellulose yog sivmuaj fluidity zoo heev, zoo tagnrho fluidity number case, thiab leveling nyob rau hauv tus number case fountain
Nws muaj peev xwm inking zoo thiab muaj peev xwm inking zoo; kev hloov pauv thiab hloov pauv ntawm cov kua nplaum los yog nruab nrab ntawm cov ntawv luam ntawv thiab daim pam kuj zoo;
Cov txheej number case yog uniform; imprinted number case zaj duab xis yog tiaj thiab du. Yog hais tias lub fluidity tsawg dhau, nws yog ib qho yooj yim uas yuav ua rau tus number case tsis zoo; kev faib tsis sib npaug ntawm cov kua nplaum txheej, thiab lwm yam.
phenomenon, nto ntawm cov imprinted number case zaj duab xis kuj yuav tshwm ripples. Thaum lub fluidity loj dhau lawm, cov txheej nyias nyias yog ib qho yooj yim los ua cov dot expansion, luam ntawv
Cov xim tsis muaj zog. Flow meter txoj kev yog feem ntau siv.
Lub sij hawm xa tuaj: Plaub Hlis-25-2024