Cov txheej txheem ua tiav rau daim di ncauj gloss raw cov ntaub ntawv feem ntau suav nrog peb yam tseem ceeb: kev tswj cov khoom muaj tseeb, kev tswj xyuas qhov kub thiab txias, thiab dispersion uniformity.
Ntau yam roj, waxes, thiab hmoov yuav tsum tau qhia nyob rau hauv cov proportions, thaum xyuas kom meej tias cov ntaub ntawv raw lawv tus kheej raws li cov qauv nruj rau stability thiab purity. Tshwj xeeb, qhov piv ntawm waxes rau cov roj ncaj qha cuam tshuam rau cov khoom kawg molding yam ntxwv thiab cov khoom ntws; yog li ntawd, cov txheej txheem nruj yuav tsum tau khaws cia thaum lub sij hawm hnyav thiab ua ntej - sib xyaw ua ke.
Cov roj thiab waxes yuav tsum tau yaj kom huv si thiab khaws cia rau hauv lub xeev ruaj khov ntawm qhov kub thiab txias kom tsis txhob muaj cua sov hauv cheeb tsam, uas tuaj yeem ua rau oxidation lossis cov khoom degradation. Tom qab cov xim ntxiv lawm, siab -kev ceev shearing los yog homogenization cov cuab yeej feem ntau yog ua hauj lwm los disperse cov pigments, xyuas kom meej lawv cov uniform faib thoob plaws hauv matrix thiab tiv thaiv tej teeb meem xws li grittiness los yog sedimentation. Cov txheej txheem no thaum kawg txhim kho daim di ncauj gloss lub fineness thiab nws smoothness thaum thov.
Cov khoom sib tov yuav tsum tau ntim rau hauv cov thawv ntim hauv qhov ntsuas kub tshwj xeeb kom tiv thaiv kev tsim cov npuas npuas, shrinkage, lossis theem sib cais. Ua raws li cov txheej txheem molding, kev ntsuam xyuas kev ruaj ntseg yog ua - suav nrog kev ntsuas ntawm kev tiv thaiv tshav kub, tiv thaiv txias, thiab kev hloov pauv ntawm cov xim lossis kev ntxhib los mos tom qab khaws cia ntev. Cov txheej txheem tsim khoom tag nrho qhia txog kev txuas ntxiv thiab sib xws los xyuas kom meej tias cov khoom muaj kev ua haujlwm zoo ib yam thoob plaws ntau yam ntawm ib puag ncig.