Vim tias cov txheej txheem dehydration ntawm cov ntaub ntawv yuav cuam tshuam ncaj qha rau qhov zoo ntawm daim ntawv thiab kev ua haujlwm ntawm lub tshuab ntawv, thiab kev txhim kho cov dej lim dej tuaj yeem txhim kho cov khoom tsim tau, txhim kho cov ntawv tsim, txo lub zog ntawm kev ziab. seem, thiab lwm yam., cov dej lim dej ua haujlwm ntawm cov ntaub ntawv qib siab yog ib qho tseem ceeb ntawm cov ntaub ntawv ntub dej kawg chemistry tshawb fawb.
Kev xyaum tau ua pov thawj tias polyaluminium chloride, uas muaj tus nqi zoo dua nws tus kheej, yog qhov zoo tshaj plaws impurity scavenger, uas tuaj yeem khi rau cov anionic impurities thiab sau rau ntawm fiber ntau, thiab tom qab ntawd tsis tsuas yog tswj cov kev cuam tshuam ntawm anionic impurities hauv lub pulp, thiab tseem txhim kho cov kua dej ua haujlwm ntawm cov ntaub so ntswg, vim tias txawm tias me me ntawm anionic fiber ntau degradation cov khoom yuav ua rau muaj kev cuam tshuam rau cov kua dej ntawm daim ntawv. Nyob rau tib lub sijhawm, polyaluminium chloride tuaj yeem yooj yim adsorbed rau ntawm fiber ntau, thiab tseem tuaj yeem adsorb qhov tsis zoo ntawm cov fillers thiab cov fibers zoo, ua rau lawv zais ntau hauv daim ntawv; synergistic nyhuv nrog lwm cov organic polymers Nws tuaj yeem txhim kho tus nqi cia ntawm cov ntaub ntawv zoo thiab txhim kho cov dej ua haujlwm ntawm slurry.