Thaum nws los txoglim ntawv,ntau tus neeg yuav xav tias nws txawv li cas ntawm daim ntawv zoo tib yam.Ob qho khoom siv muaj lawv cov kev siv tshwj xeeb thiab kev ua haujlwm, thiab nws yog ib qho tseem ceeb kom nkag siab qhov sib txawv ntawm ob daim ntawv no.
Lim xov xwm daim ntawv, raws li lub npe qhia, yog tsim los rau cov haujlwm tshwj xeeb pom.Nws yog tsim los nrog cov cuab yeej tshwj xeeb thiab cov khoom siv, uas tuaj yeem tshem tawm impurities hauv cov kua lossis roj.Daim ntawv dawb, ntawm qhov tod tes, feem ntau yog siv rau kev sau ntawv, luam ntawv, lossis ua haujlwm txhua hnub.
Ib qho ntawm qhov sib txawv tseem ceeb ntawm cov ntawv lim xov xwm thiab cov ntawv dawb yog lawv cov khoom sib xyaw.Cov ntawv xov xwm lim dej feem ntau yog ua los ntawm cov fibers ntuj xws li paj rwb lossis cellulose thiab muaj cov khoom pom zoo.Cov fibers no tshwj xeeb yog kho los txhim kho lawv lub peev xwm los ntes cov khoom, kom ntseeg tau tias muaj kev pom zoo.Daim ntawv dawb, ntawm qhov tod tes, feem ntau yog ua los ntawm cov ntoo pulp nrog cov khoom ntxiv xws li tshuaj dawb lossis dyes rau kev zoo nkauj.
Kuj tseem muaj qhov sib txawv tseem ceeb hauv kev tsim cov ntawv lim xov xwm thiab cov ntawv dawb.Cov ntawv xov xwm lim dej yuav tsum muaj cov tshuab tshwj xeeb los tsim cov qauv ntxeem tau uas tso cai rau cov kua dej ntws tawm kom zoo tab sis thaiv kev hla ntawm cov khoom loj.Cov txheej txheem cuam tshuam nrog kev sib txuas ntawm cov fibers ua ke siv ntau txoj hauv kev xws li cua sov, resins lossis tshuaj.Hauv qhov sib piv, cov txheej txheem ntawm daim ntawv dawb yog yooj yim dua, thiab cov ntoo pulp yog mechanically raug ntaus rau hauv cov ntawv nyias.
Daim ntawv thov npaj thiab siv kuj sib txawv cov ntaub ntawv xov xwm los ntawm cov ntawv dawb.Cov ntawv xov xwm lim dej yog siv ntau yam kev lag luam, xws li tsheb, tshuaj thiab ib puag ncig, qhov pom tseeb yog qhov tseem ceeb.Nws yog siv rau hauv daim ntawv thov xws li roj lim, lim cua, kuaj pom thiab dej huv.Piv txwv li, daim ntawv dawb yog siv hauv chaw ua haujlwm, tsev kawm ntawv, thiab tsev rau kev sau ntawv, luam ntawv, ntim khoom, lossis kev ua yeeb yam.
Hauv luv luv, qhov sib txawv tseem ceeb ntawm cov ntawv xov xwm lim dej thiab cov ntawv zoo tib yam yog nyob rau hauv nws cov muaj pes tsawg leeg, kev tsim khoom thiab kev siv.Siv cov fibers ntuj thiab cov txuj ci tsim tshwj xeeb, cov ntawv xov xwm lim dej tshwj xeeb yog tsim los kom muaj peev xwm pom zoo.Daim ntawv dawb, ntawm qhov tod tes, feem ntau yog siv rau kev sau ntawv lossis lub hom phiaj dav dav.Kev nkag siab txog qhov sib txawv no tuaj yeem pab peb paub txog tus nqi thiab qhov tseem ceeb ntawm cov ntawv lim xov xwm hauv ntau daim ntawv thov kev lag luam.
Post lub sij hawm: Aug-10-2023