Duplex Board yog ua los ntawm sab saum toj thiab hauv qab pulp. Nws cov qauv yog muab faib ua cov txheej hauv qab, txheej txheej, txheej txheej, txheej txheej thiab txheej txheej. Cov xim ntawm qhov chaw hauv qab ntawm daim ntawv whiteboard yog grey. Nws yog tsim los ntawm cov ntawv xov xwm khib nyiab los ntawm deinking, yog li cov txheej txheem hauv qab yog sib xyaw heev; Qhov saum npoo yog dawb, nws yog ib txheej txheej txheej txheej nrog cov tshuaj raw khoom xws li kaolin hmoov thiab nplaum. Cov txheej txheej saum npoo (coated nto) muaj siab dawb, zoo number case absorption, smoothness thiab luam ntawv gloss, thiab cov duab los qhia nws tus kheej muaj zoo nruj thiab folding kuj. Tom qab lub npoo ntawm daim ntawv duplex yog coated, qhov kev ua haujlwm saum npoo tau zoo tuaj. Nws tuaj yeem ua tau raws li cov kev cai ntawm cov xim zoo nkauj, tuaj yeem yog cov khoom siv zoo rau cov khoom ntim khoom nruab nrab thiab qib siab.
Foling box board yog ib tug tuab thiab firmer dawb cardboard. Nws yog ua los ntawm 100% bleached kraft ntoo pulp thiab tau raug ntaus dawb. Nws yog tsim los ntawm kev ntxiv cov fillers dawb xws li talc thiab barium sulfate rau ntawm Foursdrinier daim ntawv tshuab thiab ua tiav los ntawm calendering lossis embossing.
Tseem muaj qhov pom tseeb qhov sib txawv ntawm qhov nqus thiab roughness ntawm duplex board thiab FBB.FBB muaj ntau dua absorbency thiab qis roughness. Kev nqus dej ntau dua tuaj yeem ua rau cov ntsiab lus yooj yim dua, thaum qis roughness ua rau tsawg deformation ntawm daim ntawv nyob rau hauv kev luam ntawv siab, thiab yuav tsum tau ib tug thinner number case zaj duab xis, uas yuav pab txo tau cov dot nce. Yog li ntawd, lub rooj tsavxwm duplex yog qis dua rau FBB raws li lub suab tsim tawm.
Daim ntawv smoothness, gloss thiab absorbency kuj tseem ceeb. Qhov saum npoo smoothness ntawm FBB yog qhov siab. Thaum tus number case luam tawm ntawm daim ntawv, capillary hauv txheej txheej absorbs tusyees, txawm tias tus number case me me, nws tuaj yeem ua kom muaj kev hloov pauv siab. Nws yog qhov yooj yim ruaj khov thiab tuaj yeem tsim cov duab zoo li qub thiab qhuav. Lub gloss ntawm cov ntawv luam tawm yog qhov zoo heev, cov xim yog ci, thiab cov khaubncaws sab nraud povtseg yog nplua nuj. Daim ntawv muaj qhov smoothness siab, muaj zog specular reflection, zoo gloss, thiab thaum lub teeb dhau los ntawm txheej number case thiab hits daim ntawv, feem ntau ntawm lub teeb yuav rov nkag los ntawm tus number case txheej nyob rau hauv daim ntawv ntawm specular reflection, thiab nkag mus rau cov neeg soj ntsuam. qhov muag. Tsuas yog ib feem ntawm lub teeb no tuaj yeem cuam tshuam cov xim yam ntxwv ntawm tus cwj mem. Ntawm qhov tod tes, lub rooj tsavxwm duplex muaj qhov loj ntawm qhov pores, qhov chaw tsis sib xws, tsawg tus number case ntim, daim ntawv tsis tuaj yeem tiv tauj tus number case luam ntawv, thiab tus nqi hloov pauv tsawg; Thaum tus number case ntim siab, qhov hloov pauv tau siab heev, qhov nqus dej ntau dhau, thiab feem ntau ntawm cov ntawv khi hauv tus number case yog absorbed los ntawm daim ntawv, cov xim pigment tsis txaus tiv thaiv, tus number case tsis ceev, thiab xim. yog npub.
Post lub sij hawm: Sep-13-2022