Lub tshuab ntxhua khaub ncaws hmoov ntau lawm feem ntau ua haujlwm raws li cov txheej txheem tshwj xeeb, hloov cov ntaub ntawv raw rau hauv cov khoom tiav. Kev pom zoo cov cuab yeej teeb tsa ua kom muaj kev sib koom ua ke ntawm cov theem tsim khoom, yog li txhim kho kev ua tau zoo thiab cov khoom zoo sib xws.
Ua ntej, cov khoom siv raw -xws li surfactants, builders, thiab fillers- raug ntsuas raws li cov qauv tsim. Thaum ntsuas, cov ntaub ntawv raug muab pub rau hauv cov khoom sib tov thiab sib xyaw kom huv si kom ntseeg tau tias muaj kev sib faib ntawm cov khoom. Rau cov kab uas siv cov tshuaj tsuag- txheej txheem ziab, cov slurry tshwm sim yog pub rau hauv cov tshuaj tsuag- tshuab ziab khaub ncaws; cua kub evaporates cov dej noo, hloov cov khoom mus rau hauv granular ntxhua khaub ncaws hmoov.
Cov khoom qhuav tau raug tshuaj xyuas kom cais cov khoom loj lossis qhov tsis zoo, nrog rau cov khoom ua raws li cov txheej txheem tom ntej mus rau kev xa khoom thiab cua txias. Nyob ntawm cov qauv, cov cua sov- cov khoom xyaw rhiab heev lossis cov khoom siv ntxiv- xws li cov tshuaj tsw qab thiab cov enzymes - kuj tseem tuaj yeem muab tso rau hauv theem no.
Thaum kawg, cov khoom tiav nkag mus rau hauv cov khoom ntim tsis siv neeg, qhov twg nws yog qhov hnyav, ntim, thiab kaw raws li preset specifications. Tag nrho cov txheej txheem tuaj yeem ua haujlwm ntawm semi- tsis siv neeg lossis tag nrho cov tshuab tswj tsis siv neeg, nyob ntawm qhov ntsuas ntawm ntau lawm.