Cov khoom tseem ceeb ntawm daim ntawv ua tshuab raws li qhov kev txiav txim ntawm daim ntawv tsim tau muab faib ua cov xaim, nias ib feem, ua ntej ziab, tom qab nias, tom qab ziab, calendering tshuab, ntawv dov tshuab, thiab lwm yam. Cov txheej txheem yog dehydrate lub pulp tso tawm los ntawm lub taub hau ntawm lub mesh ib feem, compressed nyob rau hauv lub nias ib feem kom cov ntawv txheej uniform, qhuav ua ntej ziab ntawm qhuav, ces nkag mus rau hauv cov kev kho mob kom qhuav, ces nkag mus rau qhuav qhuav, ces nkag mus rau hauv cov kev kho mob. presser kom du daim ntawv, thiab thaum kawg tsim cov jumbo yob ntawv los ntawm daim ntawv reel. Cov txheej txheem sib xws yog raws li nram no:
1. Pulping seem: raw khoom xaiv → ua noj thiab fiber sib cais → ntxuav → bleaching → ntxuav thiab tshuaj ntsuam → concentration → cia thiab cia.
2. Hlau ib feem: Pulp ntws tawm ntawm lub taub hau, sib npaug sib npaug thiab sib cuam tshuam ntawm lub tog raj kheej pwm lossis hlau ib feem.
3. Xovxwm ib feem: Daim ntawv ntub dej tshem tawm ntawm lub net nto yog coj mus rau ib tug menyuam nrog daim ntawv ua. Los ntawm extrusion ntawm cov menyuam thiab cov dej nqus ntawm kev xav, cov ntawv ntub dej yog ntxiv rau lub cev qhuav dej, thiab daim ntawv yog nruj dua, yog li txhawm rau txhim kho daim ntawv nto thiab ua kom muaj zog.
4. Lub tshuab ziab khaub ncaws: Vim tias cov dej noo ntawm cov ntawv ntub dej tom qab nias tseem yog siab li 52% ~ 70%, nws tsis tuaj yeem siv lub zog siv tshuab kom tshem tawm cov dej noo, yog li cia cov ntawv ntub dej los ntawm ntau lub tshuab ziab khaub ncaws kub kom qhuav cov ntawv.
5. Winding ib feem: Daim ntawv yob yog ua los ntawm cov ntawv winding tshuab.
Lub sij hawm xa tuaj: Nov-18-2022