Daim ntawv tso quav tso quav tsis tas yuav yog qhov zoo dua. Siv cov ntoo ntshiab huv los ua cov khoom siv rau cov ntawv tso quav, uas nws tus kheej muaj lub teeb qe daj xim. Cov tuam txhab tsim cov ntawv tso quav tso tawm qhia tias feem ntau ntawm cov ntawv tso quav hauv nruab nrab thiab qis qis tam sim no muag hauv khw siv cov ntawv siv dua tshiab, cov ntaub ntawv luam tawm, thiab ntawv luam ntawv dawb. Thaum lub sij hawm tsim cov txheej txheem, nws yuav tsum tau mus kho deinking thiab ntxiv whitening agents thiab fluorescent whitening agents. Cov tshuaj ntxuav hniav dawb tsis muaj txiaj ntsig zoo rau tib neeg lub cev, yog li tsis txhob xaiv cov khoom lag luam whiteness siab.
Cov neeg siv khoom yuav tsum xaiv cov tuam txhab muaj koob npe thiab cov khoom lag luam thaum yuav daim ntawv tso quav tso quav. Los ntawm cov tsos, cov ntaub so ntswg zoo zoo nkaus li ntshiab thiab huv, nrog cov tawv nqaij tawv nqaij, thiab cov ntawv huv thiab huv si. Cov ntawv tso quav qib qis zoo li tsaus grey thiab muaj impurities. Qhov thib ob, cov khoom uas muaj zog tensile zog, zoo saj zawg zog, thiab ob peb qhov yuav tsum tau xaiv.
Cov ntawv hauv tsev nrog rau txhua hnub ntawm peb lub neej txhua hnub thiab yog cov khoom siv niaj hnub paub. Nws yog ib qho tseem ceeb thiab yooj yim saib tsis tau qhov ntawm kev saib xyuas kev noj qab haus huv zoo rau txhua tus. Kev siv cov khoom siv raw yog ib kauj ruam tseem ceeb hauv kev txiav txim siab txog kev noj qab haus huv ntawm cov ntawv hauv tsev.
