1. Tsaus- cov phuam da dej muaj xim kim dua li lub teeb - cov xim, thaum lub teeb - cov phuam da dej muaj xim zoo dua. Qhov no yog vim qhov tsaus ntuj - cov phuam da dej uas muaj xim yuav tsum tau siv tshuaj ntau dua thiab siv sijhawm ntev dua, ua rau muaj kev puas tsuaj ntau dua rau cov fibers. Tsis tas li ntawd, cov xim tsaus dua, qhov tsis ruaj nws yog. Cov menyuam yaus yuav tsum siv lub teeb - cov phuam da dej. Tsis txhob yuav cov phuam da dej nrog paj ntaub.
2. Cov phuam ntub dej yog qhov ua rau rotting thiab kab mob kis ntau dua li cov phuam so qhuav.
3. Cov phuam tawv tawv dhau sijhawm.
4. Vim li cas qee cov phuam so tsis nqus dej tom qab ntxuav, thaum lwm tus qhuav sai? Ib txoj phuam tshiab tsis muaj qhov nqus dej tsis tas txhais tau tias nws tsis zoo lossis tsis yog paj rwb ntshiab. Thaum lub phuam- ua cov txheej txheem, ib qho ntxiv hu ua softener yog siv. Qhov no yog cov kua uas ua rau cov phuam so tes. Muaj ob hom: absorbent thiab non-absorbent. Qhov no piav qhia txog cov teeb meem uas tau hais dhau los.
5. Tsis yog- cov phuam da dej feem ntau muaj xim ci heev, zoo li yog coated nrog roj. Yog li ntawd, yog tias koj tab tom nrhiav ib daim phuam nyias nyias, ci ntsa iab, nws yuav tsis zoo li -absorbent.
