Aluminium sulfate plays ntau lub luag haujlwm hauv kev lag luam ntawv, suav nrog cov kev pabcuam khaws cia, cov khoom siv lim dej, tsim cov khoom siv, anionic pov tseg neutralizers, pH tswj cov neeg ua haujlwm, cov tshuaj tswj cov tshuaj, cov tshuaj rosin sizing, dej purification flocculants, thiab cov hmoov txhuv nplej siab. Kev tuav tuav, thiab lwm yam. Thaum lub sij hawm sizing ntawm daim ntawv, aluminium sulfate yog siv los kho pH ntawm starch. Aluminium sulfate yog ib qho ntawm irreplaceable additives nyob rau hauv daim ntawv kev lag luam thiab muaj ntau yam functions.
Tsis tas li ntawd, cov tshuaj aqueous ntawm caustic soda kuj tseem tuaj yeem hydrolyze qee cov organic teeb meem cais nws ntawm cellulose, yog li ua tau raws li cov kev xav tau ntawm cov ntawv tsim khoom. Hauv kev lag luam luam ntawv thiab dyeing, lub luag haujlwm ntawm caustic soda zoo ib yam li hauv papermaking. Nyob rau hauv cov txheej txheem smelting, lub luag haujlwm tseem ceeb ntawm caustic soda yog siv cov yam ntxwv ntawm nws cov ntsev soluble los hloov cov khoom xyaw hauv cov ore rau hauv cov tshuaj soluble kom ua tiav kev sib cais ntawm impurities thiab ua ntxiv.
Feem ntau hais lus, cov haujlwm ntawm txhuas sulfate feem ntau suav nrog cov hauv qab no: ua ntej, nws siv cov cationic xwm ntawm nws trivalent txhuas kom tsis txhob anionic pov tseg; Thib ob, los ntawm kev kho tus nqi pH, nws ua kom ntseeg tau tias cov cationic additives ua si lawv lub luag haujlwm siab tshaj plaws; Tsis tas li ntawd, nws kuj tseem tuaj yeem txuas cov kev sib txuas ntawm cov hmoov txhuv nplej siab thiab fiber ntau, txhim kho tus nqi khaws cia ntawm cov hmoov txhuv nplej siab thiab txhim khu kev sib txuas nrog fiber ntau. Txawm li cas los xij, txawm hais tias aluminium sulfate plays lub luag haujlwm tseem ceeb hauv papermaking, nws kuj muaj qee qhov kev mob tshwm sim, xws li muaj cov kua qaub dawb uas tuaj yeem cuam tshuam nrog hydroxyl pawg ntawm fiber ntau thiab ua rau daim ntawv ua nkig.
Yog li ntawd, thaum siv txhuas sulfate, xaiv cov khoom zoo thiab siv tau zoo. Nws yog ib qho indispensable thiab zoo heev additive thaum ua ntawv. Nws yog ib qho tsim nyog hais tias ntxiv cov txhuas sulfate ntau dhau yuav ua rau cov hmoov txhuv nplej siab txuas nrog aluminium ions mus rau hauv lub network, ua rau qhov ntom ntawm cov hmoov txhuv nplej siab siab dhau lawm thiab thaum kawg ua rau daim ntawv ua nkig. Yog li ntawd, koj yuav tsum tau xyuam xim rau kev tswj kev noj tshuaj thaum siv txhuas sulfate.