Dab tsi yog Offset Ink Ua Los Ntawm?
Sep 18, 2023
Offset number case yog ib hom kev luam ntawv tshwj xeeb uas siv feem ntau hauv cov txheej txheem luam ntawv offset, uas yog ib txoj hauv kev nrov thiab ntau yam los tsim cov ntaub ntawv zoo tshaj plaws xws li ntawv xov xwm, ntawv xov xwm, ntawv qhia, ntim, thiab lwm yam. Offset inks yog tsim los ua kom zoo rau lub phaj luam ntawv thiab hloov tau zoo rau cov ntawv luam tawm, feem ntau yog ntawv, tsis muaj smudging lossis smearing.https://www.guolvprint.com/offset-ink/
Cov inks no yog tsim los ntawm ntau yam tseem ceeb:
Pigments:Pigments yog cov xim uas muab tus cwj mem offset nws cov xim. Pigments yog cov khoom uas raug tshem tawm hauv tus cwj mem. Lawv muaj lub luag haujlwm rau tus number case opacity thiab xim siv. Offset inks tuaj yeem muaj ib qho xim lossis sib xyaw ntawm cov xim kom ua tiav cov xim uas xav tau.
Tsheb lossis Binder:Lub tsheb yog cov kua dej ntawm tus number case uas tshem tawm cov pigments thiab tso cai rau lawv siv rau qhov chaw luam ntawv. Nws kuj tseem ua lub luag haujlwm tseem ceeb hauv cov kua nplaum adhesion thiab hloov pauv. Lub tsheb feem ntau yog tsim los ntawm ntau yam:
Cov roj zaub:Cov roj zaub uas nquag siv suav nrog cov roj taum pauv, roj linseed, thiab roj tung. Cov roj no muab viscosity thiab ua raws li cov cab kuj rau lwm yam khoom siv number case. Soybean roj feem ntau nyiam rau nws cov txiaj ntsig ib puag ncig.
Resins:Resins tau ntxiv los txhim kho number case adhesion thiab durability. Lawv pab tus number case ua raws li qhov chaw luam ntawv thiab tiv thaiv kev hnav thiab puas. Resins tuaj yeem hloov kho rosin lossis roj av.
Waxes:Waxes tau ntxiv rau offset number case formulations los txhim kho gloss, txo scuffing, thiab txhim kho number case faib thaum luam ntawv.
Cov kuab tshuaj los yog dej:Lub tsheb nyob rau hauv offset number case tuaj yeem yog cov kuab tshuaj los yog dej-raws li, nyob ntawm seb hom offset luam ntawv. Hauv cov ntawv luam tawm ib txwm muaj (cov ntawv sau los yog lub vev xaib), cov kuab tshuaj raws li cov kuab tshuaj feem ntau yog siv, thaum cov dej-raws li inks yog siv hauv dej tsis muaj offset luam ntawv. Cov kuab tshuaj pab tswj cov viscosity ntawm tus number case thiab ua lub luag haujlwm hauv kev ziab kom qhuav.
Drying Agents:Cov tshuab ziab khaub ncaws, tseem hu ua tshuab ziab khaub ncaws lossis sicatives, tau ntxiv los ua kom tus number case kom qhuav. Cov neeg ua hauj lwm no pab tus number case teem ceev ceev ntawm lub tshuab luam ntawv substrate, tiv thaiv smudging los yog offsetting.
Additives:Ntau yam additives yuav raug muab tso rau hauv offset number case formulations kom ua tiav cov yam ntxwv tshwj xeeb lossis kev ua tau zoo:
Anti-Skinning Agents:Cov no tiv thaiv tus number case los ntawm kev tsim daim tawv nqaij thaum raug huab cua.
Anti-Setoff Agents:Lawv txo qhov kev pheej hmoo ntawm tus cwj mem hloov ntawm ib daim ntawv luam mus rau lwm qhov, tshwj xeeb tshaj yog nyob rau hauv sheetfed offset printing.
Anti-Foaming Agents:Cov additives no pab tswj kev tsim cov npuas dej hauv tus cwj mem, uas tuaj yeem cuam tshuam rau kev luam ntawv zoo.
PH Adjusters:Offset inks yog tsim rau cov qib pH tshwj xeeb txhawm rau txhim kho lawv cov kev ua tau zoo thiab ruaj khov.
Pigment Dispersants:Cov no yog siv los xyuas kom meej dispersion ntawm pigments nyob rau hauv tus number case, tiv thaiv clumping los yog daws.
Colorants:Ntxiv nrog rau cov pigments, cov xim xws li dyes tuaj yeem raug ntxiv rau kev kho kom zoo ntawm tus number case xim.
UV Absorbers:Hauv qee daim ntawv thov, UV absorbers tuaj yeem suav nrog los tiv thaiv tus cwj mem thiab cov ntaub ntawv luam tawm los ntawm kev phom sij ntawm ultraviolet (UV) lub teeb.
Cov qauv tsim tshwj xeeb ntawm tus cwj mem offset tuaj yeem sib txawv raws li cov xovxwm luam ntawv tshwj xeeb, substrate, thiab cov txiaj ntsig luam ntawv xav tau. Offset number case manufacturers ua tib zoo tsim thiab sim lawv cov inks kom ntseeg tau tias kev ua tau zoo thiab ua raws li cov qauv kev lag luam. Tsis tas li ntawd, kev txiav txim siab ib puag ncig tau ua rau muaj kev txhim kho ntau dua eco-phooj ywg offset inks, xws li cov kua txiv hmab txiv ntoo los yog zaub-raws li inks, uas tau txais koob meej vim lawv qhov cuam tshuam ib puag ncig.