Kev Sib Tham thiab Kev Ua Haujlwm ntawm Dawb Kraft Daim Ntawv Tsim Tshuab

Cov ntawv dawb kraft yog cov ntawv ntim qib siab, uas tuaj yeem siv los ua cov khoom ntim khoom, hnab ntawv, hnab ntawv, thiab lwm yam, thiab tuaj yeem siv rau ntim khoom noj. Nyob rau hauv xyoo tas los no, nrog kev loj hlob sai ntawm kev lag luam ntim khoom, kev lag luam xav taudawb kraft ntawv nyob rau hauv kuv lub teb chaws tau loj hlob sai heev. Qee lub tuam txhab tsim cov ntawv hauv tsev kuj tau nce ntau lawm thiab kev tsim cov ntawv dawb kraft, thiab kev lag luam ntawm cov ntawv dawb kraft tseem nce ntxiv. Vim lub hom phiaj tshwj xeeb ntawm cov ntawv dawb kraft, muaj cov kev xav tau ntau dua rau cov ntsuas lub zog. Raws li cov ntaub ntawv ntawm cov ntawv dawb kraft cov qauv sau los ntawm kev lag luam kev tshawb fawb, piv nrog cov ntawv ntshiab tam sim no, cov ntawv dawb kraft ntawv muaj zog tensile thiab durability. quav, kua muag thiab txo cov hmoov tshauv, Cobb tus nqi. Txog qhov kawg no, peb tau kho cov txheej txheem tsim cov ntawv los ntawm kev ntsuas xws li txo cov ntawv tshauv, ntxiv cov hmoov txhuv nplej siab cationic, kho qhov sib piv ntawm cov khoom siv raw, thiab txhim kho qhov kev sib tw ntawm cov tawv nqaij kom ua tau raws li qhov yuav tsum tau ua ntawm cov xim dawb.kraft ntawvthiab ua technical reserves rau cov khoom loj tom ntej.

Nyob rau hauv txoj kev tshawb no, cov cuab yeej tsim khoom ntawm cov ntawv dawb kraft tau tham, thiab cov txheej txheem hloov kho tau ua kom pom tseeb los ntawm kev sib piv cov qauv ntawv dawb kraft nrog cov ntawv ntshiab. Xa mus rau cov txheej txheem tsim cov ntawv ntshiab zoo, peb tau ua cov kev ntsuas xws li txo cov hmoov tshauv ntawm daim ntawv, ntxiv cov hmoov txhuv nplej siab cationic, kho qhov kev faib ua feem ntawm cov ntaub so ntswg, kev txhim kho qhov kev ntaus nqi ntawm cov ntaub so ntswg, thiab lwm yam. tau txiav txim raws li hauv qab no: qhov feem pua ​​ntawm softwood pulp yog 25% thiab hardwood pulp yog 75%, qhov ntaus degree ntawm ob leeg yog 40 ° SR, cov tshauv ntawm daim ntawv yog 21%, qhov ntxiv ntawm cationic starch yog 9 kg·t-1. ntawm ntawv. Cov dawbkraft ntawvdaim ntawv tsim los ntawm cov txheej txheem no muaj kev ua haujlwm siab, kev ua lag luam kev sib tw, thiab kev cia siab rau kev thov.