Cov Khoom Muag Tshiab
Cov neeg sawv cev rau tus neeg sawv cev yog lub siab ua rau nkag siab tus neeg sawv cev nrog cov neeg muaj zog thiab muaj peev xwm txo qis saum npoo nro. Nws yog dav siv nyob rau hauv tawv, paj rwb, ntaub pua chaw, viscose thiab cov khoom lag luam sib xyaw. Cov ntaub uas kho tau tuaj yeem ua kom dawb huv thiab ua kom tsis muaj nqaij ntuag. Cov neeg sawv cev rau tus neeg sawv cev tsis tiv thaiv muaj zog acid, muaj zog alkali, hnyav hlau ntsev thiab txo tus neeg sawv cev. Nws nkag mus sai sai thiab tusyees, thiab muaj kev nyab xeeb ntub, emulsifying thiab ua npuas dej yam ntxwv.
Cov nyhuv yog qhov zoo tshaj plaws thaum kub qis dua 40 degrees, thiab tus nqi PH ntawm 5 thiab 10.
Qhov kev tshuaj ntau ntau yuav tsum tau hloov kho raws li lub thawv xeem kom ua tiav qhov zoo tshaj plaws.
Lub sij hawm Post: Lub Yim Hli 04-2023