Nyob rau hauv xyoo tas los no,daim ntawv manufacturersthiab cov neeg siv tau them nyiaj ntau dua thiab ntau dua rau cov ntaub ntawv ntau, vim tias qhov ntau muaj qhov cuam tshuam loj rau tus nqi thiab kev ua haujlwm ntawm cov khoom.Cov khoom loj txhais tau hais tias ntawm tib lub thickness, lub hauv paus hnyav tuaj yeem raug txo, thiab cov khoom siv fiber ntau tuaj yeem txo kom ua tiav cov nqi txuag;Cov khoom loj tuaj yeem ua rau kom cov ntawv tawv tawv, tso cai rau cov neeg tshaj tawm cov phau ntawv kom muaj cov phau ntawv tuab nrog cov nplooj ntawv tsawg dua, thiab tuaj yeem ua rau kom cov ntawv opacity, printability, thiab txo cov luam ntawv number case los ntawm.Yog li ntawd, cov khoom loj yog qhov tseem ceeb heev rau kev tswj cov nqi ntawm cov ntawv, cov khoom ua tau zoo thiab cov nqi ntxiv ntawm cov khoom.
Dab tsi yog high-bulk?Qhov no yog ib qho tseem ceeb qhia ntawm daim ntawv, uas yog qhov piv ntawm lub hauv paus luj rau thickness.Bulk qhia qhov ntom ntawm daim ntawv, uas yog, qhov loj ntawm qhov porosity ntawm daim ntawv.
Cov yam tseem ceeb uas cuam tshuam rau cov ntawv loj xws li papermaking fiber ntau raw cov ntaub ntawv, hom pulp, ntaus ua haujlwm, muab tub lim, tshuaj, nias, ziab, calendering, thiab lwm yam.
Cov fiber ntau morphology ntawm papermaking fiber ntau raw khoom muaj ib qho tseem ceeb ntawm cov ntaub ntawv.Thicker fibers muaj porosity ntau dua thiab ntau dua ntawm daim ntawv, tab sis cov khoom tsis yog tsuas yog cuam tshuam nrog fiber ntau thickness, tab sis kuj tseem muaj kev sib raug zoo nrog cov crushing ntawm fibers thaum lub sij hawm ua daim ntawv.Thaum kawg nws nyob ntawm qhov degree ntawm crushing thiab deformation ntawm fibers.Yog li ntawd, cov fibers nrog ib txoj kab uas hla me me thiab cov phab ntsa tuab yog nruj, tsis yooj yim rau crushed, thiab yooj yim rau daim ntawv loj loj.
Hom pulp kuj muaj kev cuam tshuam zoo rau ntawm daim ntawv ntau.Feem ntau hais lus, high-yield pulp>thermomechanical pulp>kraft pulp> khib nyiab.Cov ntaub ntawv sib txawv muaj ntau qhov sib txawv hauv tib lub pulp, hardwood> softwood.Covloj lojntawm high-yield pulp nws tus kheej yog incomparable nrog rau lwm yam pulps, yog li high-yield pulp yog dav siv los hloov ib nrab bleached kraft hardwood pulp nyob rau hauv high-qib ntawv.Kev xaiv thiab qhov sib piv ntawm cov ntaub ntawv pulp yog tus yuam sij rau tam sim no cov ntaub ntawv ntau lawm.Ntxiv cov kua txiv hmab txiv ntoo los txhim kho daim ntawv ntau yog tam sim no txoj kev siv tau zoo tshaj plaws los ntawm cov ntawv zeb.
Bulk yog ib yam khoom tseem ceeb ntawm daim ntawv.Cov khoom lojdaim ntawv tuaj yeem tswj tau qhov tsim nyog nruj, txo cov fiber ntau noj, txuag nqi pulp, thiab txhim kho ntau.Txoj kev ua tau zoo tshaj plaws nyob rau tam sim no suav nrog kev ntxiv cov kua txiv hmab txiv ntoo siab, xaiv cov pulp thiab cov txheej txheem txheej txheem.Optimization thiab kev loj hlob ntawm cov tshiab bulk additives kuj yog ib qho kev tshawb fawb tseem ceeb.
Post lub sij hawm: Oct-27-2022