Ntau tus neeg yuav pom tias tom qab siv lub tsheb ib ntus, yuav muaj ntau cov stains ntawm cov xim pleev xim, uas yuav dhau los ua "mottled", thiab txawm tias lub tsheb dawb yuav tshwm faded thiab yellowed. Kuv ntseeg tias qhov teeb meem no tau thab ntau tus tswv tsheb. Yog li hnub no, cia peb tham txog yuav ua li cas daws nws thaum peb ntsib cov teeb meem no.
Kuv ntseeg tias ntau tus tswv tsheb nyiam lawv lub tsheb, tshwj xeeb tshaj yog cov xim. Yog hais tias lawv tsoo nws, lawv yuav hnov mob siab. Qee zaum tom qab siv lub tsheb, lawv yuav pom qee qhov stains ntawm cov xim, tshwj xeeb tshaj yog ntawm cov tsheb dawb.
Qhov tseeb, cov stains ntawm cov xim ntawm cov tsheb no yog tshwm sim los ntawm ntau yam, xws li asphalt, pos hniav, kab corpses, noog poob, hlau hmoov, thiab lwm yam. Thaum lub tsheb tsav tsheb ceev ceev ntawm txoj kev loj, asphalt ntawm txoj kev. yuav ua raws li cov xim pleev xim; los yog thaum dhau los ntawm lub Hoobkas nyob rau hauv kev tsim kho, hlau hmoov generated thaum lub sij hawm tsim kho yuav ua raws li cov xim nto nrog cov cua ncig; thaum cov noog poob thiab cov pos hniav ntawm cov xim pleev xim yog tsim vim qhov chaw nres tsheb ntev ntawm lub tsheb hauv qab tsob ntoo.
Yog tias cov stains ntawm cov xim ntawm lub tsheb tsis raug kho raws sijhawm, lawv tuaj yeem yooj yim ua rau muaj kev puas tsuaj loj rau cov xim hauv lub sijhawm ntev. Piv txwv li, hlau hmoov, yog ua raws li cov xim pleev xim rau lub sijhawm ntev, tuaj yeem yooj yim ua rau cov xim plam nws cov lus qub thiab ploj mus ib zaug ib lub pob tawv hlau tsim, tshwj xeeb tshaj yog rau cov tsheb dawb uas ua rau yellowing.
Cov kua qaub thiab alkaline xws li noog poob thiab shellac tuaj yeem ua rau muaj kev puas tsuaj loj rau cov xim ntawm lub tsheb. Yog tias tsis kho raws sijhawm, lawv tuaj yeem yooj yim corrode cov xim, ua rau cov txheej txheem oxidation thiab cov kab nrib pleb, uas tuaj yeem ua rau qhov kev ua tau zoo ntawm cov xim thiab tiv thaiv qhov ci ntsa iab ntawm lub tsheb cov xim pleev xim los ntawm kev tiv thaiv zoo.
Rau hlau hmoov adhering rau xim nto, peb tuaj yeem siv hlau hmoov tshem tawm nrog cov cuab yeej tshwj xeeb kom tshem tawm nws. Ntxiv nrog rau cov hmoov hlau, cov stains ntawm cov xim pleev xim tuaj yeem yog asphalt, noog poob, thiab shellac. Yog li ntawd, nyob rau hauv lub ntsej muag ntawm stains ntawm cov xim ntawm lub tsheb, yog hais tias nws yog ib tug me me tshwm sim, peb muaj peev xwm siv tar cleaner nrog tshwj xeeb cov cuab yeej los daws asphalt.
Rau cov noog poob thiab shellac, yoov tshaj cum-decomposing cov neeg ua haujlwm tuaj yeem siv nrog cov cuab yeej tshwj xeeb los tshem tawm lawv. Hauv qhov xwm txheej hnyav dua, tom qab tshem tawm cov asphalt thiab yoov tshaj cum decomposing kho, nws yog ib qho tsim nyog los kho cov txheej txheem oxidation ntawm cov xim pleev xim thiab ua haujlwm polishing.
Cov stains ntawm cov xim ntawm lub tsheb zoo li yog ib qho teeb meem me, tab sis qhov tseeb, lawv muaj feem cuam tshuam rau cov xim. Qhov no yog qhov laj thawj tseem ceeb uas vim li cas lub tsheb dawb yuav ua rau yellowing, fading, thiab lwm yam. Yog li ntawd, cov teeb meem tshwm sim ntawm cov xim ntawm lub tsheb tsis tuaj yeem kwv yees. Thaum lawv tshwm sim, lawv yuav tsum tau ua raws li lub sijhawm kom tsis txhob ua rau muaj kev puas tsuaj ntau dua rau cov xim.
