Yog tias koj xav tshem cov ntawv sau hauv mem kua lossis pob cwj mem los ntawm ntawv, koj tuaj yeem siv qee cov cuab yeej uas koj tuaj yeem npaj koj tus kheej. Tom qab ntawd koj tsis tas yuav txhuam cov ntawv nrog daim txhuam ntsej muag yuav luag rau lub qhov lossis siv tus kws kho qhov muag.
Cov Lus Qhia
Kauj ruam 1
Muab sib tov sib npaug ntawm glycerin thiab ethyl cawv thiab cov txheej txheem ntawv sau hauv mem kua. Tus number case tshiab yuav raug tshem tawm nrog kua mis los yog kua mis nyeem qaub ncaug.
Kauj ruam 2
Tus number case tib yam, thiab tib lub sijhawm muab tshuaj txhuam los ntawm tus cwj mem ciav, tuaj yeem muab tshem tawm nrog kua tshwj xeeb, uas muaj ob ntu.
Kauj ruam 3
Thawj feem yog npaj raws li hauv qab no: ntxiv cov poov tshuaj permanganate hauv feem me me rau cov dej distilled (50 ml, t = 25-30 ° C), nplawm tas li kom txog thaum cov poov tshuaj permanganate tsis yaj. Tom qab ntawd ntxiv 50 ml ntawm dej txias acetic acid. Npaj cov lus sib xyaw tam sim no ua ntej siv, vim tias nws yuav plam nws qhov kev ua haujlwm sai.
Kauj ruam 4
Qhov thib ob ntawm qhov muaj pes tsawg leeg: hauv cov dej distilled hauv tus nqi ntawm 100 ml ntawm qhov kub tib yam li tau hais saum toj no, ntxiv 1-2 ntsiav tshuaj ntawm hydroperite.
Kauj ruam 5
Thov nrog lub teeb kov lub thawj ntu ntawm qhov muaj pes tsawg leeg rau qhov stain nrog cov paj rwb hle los qhwv ib puag ncig ib qho kev sib tw lossis cov paj rwb los so, tab sis tsis txhob txhuam. Rov qab ua dua tom qab ob peb feeb. Tom qab ntawd coj tus thib ob feem ntawm cov muaj pes tsawg leeg thiab discolor cov stain nrog nws. Thiab, tsis txhob txhuam.
Kauj Ruam 6
Lwm qhov kev kho mob: sib tov ib me nyuam diav vinegar (70%) nrog crystalline potassium permanganate (ntawm tes riam). Koj tuaj yeem ua cov ntawv nyeem.
Kauj Ruam 7
Tom ntej no, muab lwm cov ntawv tso rau hauv qab ntawm daim ntawv, dawb, huv. Siv txhuam muag muag, muab nws tso rau hauv kev daws ntawm poov tshuaj permanganate thiab vinegar mloog zoo thiab rub dua cov kab ntawv ntawm daim ntawv kom txog thaum nws ploj. Daim ntawv yuav tsaus ntuj, tab sis koj tuaj yeem discolor nws nrog paj rwb pas nrig hauv hydrogen peroxide.
Kauj ruam 8
Thaum lub cheeb tsam kho tseem tseem noo, hlau nws nrog hlau sov. Ua li no, muab cov ntaub mos muag nyob hauv qab daim ntawv huv, thiab muab ib daim ntawv nrog cov ntawv tshem tawm rau saum. Qhov saum npoo ntawm cov hlau yuav tsum yeej muaj qhov ci, huv, txwv tsis pub koj yuav tsum muaj hlau los ntawm cov ntaub. Hom no haum rau daim ntawv nyias.
Kauj Ruam 9
Yog tias daim ntawv tuab, siv cov paj rwb ntaws lossis phim nrog cov paj rwb ntuav pas nrig ncig nws. Npaj ntau qhov ntais ntawv lossis pas plaub loj kom lawv yuav hloov pauv tau thaum lawv lo av. Ntub txhua qhov tshiab phim nrog kev daws teeb meem thiab lw cov ntawv nyeem raws cov contours.
