Raws li qhov yuav tsum tau ua rau kev tsim cov thawv ntim, koj yuav tsum tau them sai sai rau qee qhov teeb meem thaum yuav cov hnab khib nyiab. Koj yuav tsum paub tias lub hnab siv-tuj tsis tuaj yeem yuav, yog li koj tuaj yeem yuav lawv kom lawv tuaj yeem ua tau raws li qhov zoo ntawm kev siv.
Thawj qhov uas yuav tsum nco ntsoov yog tias koj tsis tuaj yeem yuav cov hnab ntim khoom uas muaj cov tshuaj lom, oxidizing, lossis corrosive chemicals. Tom qab cov thawv ntim tau ntim cov tshuaj nyob rau lub sijhawm ntev, cov tshuaj pom lawv txoj hauv kev mus rau hauv lub hnab. Yog tias peb siv ob zaug, nws cuam tshuam rau peb. Kev noj qab haus huv ntawm lub cev tuaj yeem tsis muaj peev xwm siv cov dyes, uas tsis yog tsuas yog muaj ntxhiab tsw ntxhiab xwb, tab sis kuj muaj cov tshuaj lom.
Thaum peb yuav ton hnab, peb yuav tsum xyuam xim tshwj xeeb rau cov teeb meem no. Yog tias koj tsis paub meej, koj tuaj yeem nug peb kom ntxaws, uas yuav muaj txiaj ntsig zoo rau peb.
Thaum xaiv woven npuag rau ton hnab, koj yuav tsum xaiv du, tsis muaj qhov, thiab tsis muaj kev puas tsuaj. Lub hnab ntim kuj hu ua lub hnab ntim khoom. Qhov hnyav ntawm cov khoom lawv nqa yog qhov loj. Yog tias muaj kev puas tsuaj los yog tsis xws luag, nws yuav ncaj qha mus rau nws lub peev xwm nqa.
Thaum xaiv cov ntaub siv hauv cov hnab tote, ib qho tseem ceeb yog lub zog tensile ntawm cov hlau. Thaum xaiv, nco ntsoov nias lub hlwv ntawm qhov chaw kom pom tias lawv tawv txaus. Nyob rau tib lub sijhawm, thaum tsim khoom thiab xaiv cov woven fabrics, nws yog ruaj thiab hnav-resistant. Muaj peev xwm loj, cia ib puag ncig yuav tsum tau, thiab lwm yam yog qee qhov tseem ceeb.
