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Imported kraft linerboard feem ntau nthuav tawm cov yam ntxwv ua tau zoo dua piv rau nws cov khoom siv hauv tsev, feem ntau tshwm sim los ntawm qhov sib txawv ntawm cov khoom siv raw khoom sib txawv -tshwj xeeb, hom thiab zoo ntawm cov ntoo pulp ua haujlwm.
1. Ntshuam Kraft Linerboard
Feem ntau cov kraft linerboard yog tsim los ntawm unbleached softwood (coniferous) pulp, uas yields ntev, robust cellulose fibers. Qhov zoo ntawm cov qauv no txhais ua ntau dua txhua yam muaj zog: tawg lub zog feem ntau yog li ntawm 705.2 txog 11,953 kPa, thiab lub nplhaib crush test (RCT) qhov tseem ceeb poob ntawm 1.9 thiab 4.7 kN / m. Qhov saum npoo nthuav tawm cov kev taw qhia ntuj fiber ntau, qhov sib txawv tactile zoo nkauj, thiab hloov maj mam woody aroma. Ua tsaug rau nws qhov muaj peev xwm ua kom tsis muaj dej noo, ua pa, thiab dej tawm ntawm qhov chaw, nws tau hais dav dav rau daim ntawv thov ntim khoom zoo. Tsis tas li ntawd, raws li nws yog tsim tshwj xeeb los ntawm nkauj xwb softwood pulp yam tsis muaj bleaching, nws cov kev specifications -xws li tensile zog, nruj, thiab printability- ib yam nkaus li ntau tshaj li ntawm domestically tsim linerboard ntawm sib npaug lub hauv paus luj.
Cov txiaj ntsig tseem ceeb suav nrog: kev ua tau zoo tsis tu ncua, nruj ua raws li cov qauv kev qhia thoob ntiaj teb, thiab tsim nyog rau siab -kev ncaj ncees ob npaug- sab luam ntawv. Cov kev txwv tseem ceeb suav nrog cov nqi yuav khoom ntau dua, ncua sij hawm ua cov hmoov lead, thiab cov khoom lag luam muaj peev xwm hloov pauv tau.
2. Domestic Kraft Linerboard
Domestic kraft linerboard feem ntau yog tsim los ntawm cov txheej txheem sib xyaw pulping, suav nrog ntau qhov sib txawv ntawm cov khoom siv rov ua dua tshiab - xws li cov chaw ua haujlwm sib xyaw ua ke (xws li US lossis European xa ntawv -cov khoom siv pov tseg) thiab cov ntawv pov tseg hauv tsev deinked - nrog rau cov khoom siv ntawm cov ntawv nkauj xwb. Yog li ntawd, qhov ntev ntawm fiber ntau yog sib piv luv luv, ua rau qis dua durability, txo lub nplhaib crush lub zog, thiab txo qhov tawg tsis kam cuam tshuam rau cov qib imported. Raws li kev tsim qauv, feem ntau cov khoom siv hauv tsev tau txais kev tsim kho tri- txheej txheej: txheej txheej saum toj kawg nkaus tsim los ntawm cov khoom siv rov ua dua tshiab (rau kev txhim kho saum npoo zoo), thaum cov tub ntxhais thiab cov txheej rov qab siv qis dua - qib hauv tsev siv dua tshiab. Yog li ntawd, domestic kraft linerboard sawv cev rau tus nqi- siv tau zoo, ib puag ncig kev daws teeb meem nyob rau hauv cov ntaub ntawv ncig.
Cov qib hauv tsev raug cais raws li T, B, Q, N, thiab H- qhov twg qis dua - qib qis (piv txwv li, T) qhia tias muaj feem ntau ntawm cov khoom siv fiber ntau hauv tsev, thaum cov qib siab dua (piv txwv li, H) suav nrog ntau qhov sib koom ntawm cov khoom siv rov ua dua tshiab thiab cov fibers ntev dua. Fiber ntev ncaj qha cuam tshuam nrog cov kev qhia tseem ceeb; yog li ntawd, siab dua -qib tsev linerboards mus kom ze-tab sis tsis sib xws- lub hnab ntawv ua haujlwm ntawm cov khoom sib npaug.
Cov txiaj ntsig tseem ceeb suav nrog: tus nqi sib tw, xaiv qib hloov tau yooj yim, muaj kev ntseeg siab hauv zos, thiab kev txiav txim luv luv - rau - lub voj voog xa khoom. Cov kev txwv tseem ceeb muaj xws li: qhov ua rau lub zog qis dua vim muaj fiber ntau shortening thaum lub sij hawm rov ua dua, txwv tsis pub tsim nyog rau ob -sided luam ntawv (feem ntau yog ib qho - sab luam ntawv nkaus xwb), thiab sib piv cov kev qhia tshwj xeeb ntawm cov kev ntsuas kev ua haujlwm tseem ceeb.
Hauv cov ntsiab lus, qhov sib txawv ntawm qhov txawv txav thiab cov khoom siv hauv tsev kraft linerboard nyob hauv fiber ntau keeb kwm thiab txheej txheem txheej txheem: cov qib imported cia siab rau ntev -fiber virgin softwood pulp ua tiav los ntawm kev sib xyaw ua ke, siab - precision manufacturing txoj kev, whereas domestic qib precipitate kev pab cuam efficiency los ntawm optimized blends. Yog li ntawd, cov ntaub ntawv txawv teb chaws yog feem ntau xaiv rau siab - tus nqi, kev ua tau zoo- cov ntawv ntim khoom tseem ceeb, thaum cov khoom siv hauv tsev ua haujlwm rau tus nqi- rhiab heev, siab - ntu ntu qhov chaw ua haujlwm txaus thiab ruaj khov ua raws li kev xav tau ntawm kev ua lag luam. Yog li ntawd, kev xaiv cov khoom siv tswv yim yuav tsum tau coj los ntawm cov khoom muaj txiaj ntsig, kev ua tau zoo, cov hom phiaj kev ruaj ntseg, thiab kev xav txog cov saw hlau resilience.