A chrome-tanned tawv yuav cia li ntab ncig hauv dej. Kuaj 2: Hlawv ib daim tawv nrog lub teeb. Yog tias koj muaj tawv tawv-tanned, nws yuav tsis hlawv hauv nplaim taws thiab cov tshauv yuav grey lossis dub. Cov tawv chrome-tanned yuav hlawv yooj yim dua thiab nws cov tshauv yog ntsuab.
Dab tsi yog Chrome tawv tawv?
Chrome tanning siv cov tshuaj chemicals, acids, thiab ntsev (xws li chromium sulfate) kom tan lub zais. Nws yog txheej txheem ceev heev, siv li ib hnub los tsim ib daim tawv tanned. … Tag nrho cov hides ces tawm tuaj saib xiav (lub npe hu ua “dawb xiav”). Xyoo 2008, kwv yees li 24 lab tons ntawm chromium tau tsim.
Qhov txawv ntawm veg tan thiab chrome tan tawv yog dab tsi?
Hais txog kev ua haujlwm ntev, ob qho tib si zaub tanning thiab chrome tanning muaj lawv cov txiaj ntsig. Chrome tanned tawv yog dej-resistant ua rau nws zoo tshaj plaws rau cov khoom uas tej zaum yuav raug tshav kub los yog av noo, thaum zaub tanned tawv yog thickerthiab tuav tau ntau rugged los yog siv txhua hnub.
Dab tsi yog chrome dawb tanned tawv?
Chrome dawb tawv yog tawv uas tau tsim tsis siv chromium hauvtxheej txheem tanning.
Yuav ua li cas kom tau tawv chrome dawb?
Cov txheej txheem ntawm kev tsim chrome-tanned tawv yog tsim nyob rau hauv 1858, thiab siv chromium sulfate nrog rau lwm cov ntsev ntawm chromium. Cov txheej txheem chromium-dawb tanning suav nrog cov txheej txheem ntawm pretanningzais nrog zaub los yog hluavtaws rho tawm.
