Ob peb xyoos dhau los, tsis muaj tub ntxhais kawm ntawv tuaj yeem tuaj rau hauv chav kawm tsis muaj lub tsho khi thiab cov ris tsho. Niaj hnub no tej yam tsis yog li feem ntau starched, tab sis muaj tshwj xeeb mob thaum no tawm kev yuav pab tau heev.
Yog tias koj nyiam txhua yam coj los ua ib qho zoo meej, ua ntej koj nqos tau cov khoom uas nyob ib ncig ntawm lub cev, ua tib zoo xav. Tshaj tawm ua ntau yam heev thiab lawv "ua tsis taus pa". Ntawm no koj yuav tsum xaiv ntawm cov tsos ntawm cov khaub ncaws thiab lub cev kev tu cev.
Yuav ua li cas starch khaub ncaws?
Koj tuaj yeem yuav qhov khoom tiav thiab ua raws li cov lus qhia kom meej meej. Nyob rau hauv supermarkets hnub no ib tug ntau xaiv ntawm xws li cov txhais tau tias. Thiab koj tuaj yeem yuav qos yaj ywm, pob kws los yog txhuv nplej siab thiab npaj qhov sib tov koj tus kheej.
Txawm yog koj txiav txim siab li cas los xij, cov tshuaj yog npaj raws li ib txoj ntsiab cai. Ua ntej, hmoov txhuv nplej siab yuav tsum tau diluted nyob rau hauv dej txias rau ib tug sib xws, zoo li qaub cream. Ntxiv rau ncuav boiling dej, thaum lub daws yog tas li stirred, thiaj li hais tias nais tsis ua. Lub resulting loj yuav tsum pob tshab. Yog hais tias qhov kev daws teeb meem yog pos huab, nws muaj peev xwm ua tau me ntsis ntawm tsawg cua sov.
Tam sim no, nyob rau hauv ntau yam, xav txog txoj kev starching rau txhua rooj plaub:
- Yuav ua li cas tshuab txhuam cov ntxhua khaub ncaws. Rau khaub ncaws, nruab nrab starching yog tsim. Ib liter dej yog bred txog 1 tbsp. dia ntawm hmoov txhuv nplej siab. Yog hais tias qhov khoom yog dawb, saib cov xim daj ua ntej nchuav khaub ncaws. Koj tuaj yeem tshem lawv nrog hydrogen peroxide. Tsuas yog muab me ntsis peroxide rau ntawm lub cev thiab muab tso rau hauv ib qho chaw kaj lug ntawm lub hnub. Tom qab ib pliag, tus pes yuav ploj mus.
- Yuav ua li cas starch khaub ncaws ua los ntawm lub teeb thiab nyias ntaub. Rau batiste los yog nyias flax, qhov concentration ntawm starch yuav tsum tsawg dua. Qhov no yog kev sib tw ua kom yooj yim. Nws yog txaus rau dilute 1 teaspoon ntawm starch ib liter dej. Tom qab cov khaub ncaws ua tiav nrog ib qho muab tshuaj txhuam, nws yuav tsum maj mam muab squeezed thiab qhuav. Tso cai rau cov khoom kom pw rau ob peb teev, ces iron nws nrog ib tug hlau. Hom no kuj yog tsim rau khi ntawm cov ntaub nyias nyias (xws li chiffon los yog cambric), rau tulle.
- Yuav ua li cas qog txha caj pas. Kev laub tsho ib txwm zoo li zoo nkauj thiab muab lub tsho pom zoo. Ua ntej yuav nchos tawm kom zoo, ntxuav lub ntseg tsho thiab tshem tag nrho cov daj daj nrog peroxide yog tias nws yog lub tsho dawb. Peb muab tshuaj txhuam rau tawv tawv. Nyob rau hauv ib liter ntawm dej txias, koj yuav tsum tau dilute 50 g ntawm starch. Tom qab ntawd ntxiv boron sodium ntsev (15 g), pre-dissolving nws nyob rau hauv ib lub khob ntawm dej kub. Thaum cov dej thiab ntsev cools, nws yuav muab ntxiv rau cov hmoov txhuv nplej siab. Txhob sib tov qhov sib tov no yuav tsum yog tsawg kawg yog ob xuab moos. Tom qab ntawd cov khoom, nyob rau hauv peb cov ntaub ntawv, lub ntseg tsho, yog txo qis rau hauv cov tshuaj no.
Tom qab ntawd, yuav tsum tau hnav khaub ncaws thiab nthuav rau ntawm daim ntaub dawb huv kom qhuav kom qhuav. Kom qhuav qhuav ntawm daim ntaub yog tsis tsim nyog, tseem qis tsho caj dab yuav tsum tau ironed. - Yuav ua li cas starch lub rooj ntaub pua tsev. Yog tias nyiaj so koobtsheej npau npo, nws yuav zoo rau, thaum nws yuav tsawg dua. Dissolve 10 g ntawm starch nyob rau hauv ib liter dej, qhov no yog kwv yees li 1 teaspoon. Thaum txhua yam yog npaj txhij, poob lub rooj ntaub pua txaj rau hauv kev npaj tov thiab sib tov zoo, yog li cov ntaub npuag yuav sib zog. Ces nyem thiab qhuav txhua yam.
- Kev kho tej yam zoo li no, koj tsis yog muab lawv saib zoo dua. Tom qab cov txheej txheem no, cov khaub ncaws tsis tshua qis thiab kav ntev dua qub lawv cov tsos mob, tsis crumble npaum li ntawd.