Qhov cuam tshuam los ntawm cov formaldehyde dawb uas tsim tawm thaum lub sijhawm tanning tau raug hais los ntawm cov chaw tanneries thiab cov neeg siv khoom ntau tshaj kaum xyoo dhau los. Txawm li cas los xij tsuas yog nyob rau xyoo tas los no qhov teeb meem tau raug coj los ua qhov tseem ceeb los ntawm cov neeg tanneries.
Rau cov chaw ua tawv nqaij loj thiab me, kev tsom mus rau kev sim cov ntsiab lus formaldehyde dawb. Qee lub chaw ua tawv nqaij yuav sim txhua pawg ntawm lawv cov tawv nqaij tshiab tsim tawm kom ntseeg tau tias lawv cov khoom ua tau raws li cov qauv.
Rau feem ntau ntawm cov neeg hauv kev lag luam tawv, kev paub txog yuav ua li cas kom txo cov ntsiab lus ntawm cov formaldehyde dawb hauv tawv tau ua kom meej meej -
Cov tshuaj tanning amino resin feem ntau yog melamine thiab dicyandiamide, yog qhov ua rau muaj formaldehyde dawb hauv cov txheej txheem ua tawv thiab tso tawm formaldehyde tas li hauv cov khoom tawv. Yog li ntawd, yog tias cov khoom amino resin thiab cov teebmeem formaldehyde dawb uas lawv coj tuaj yeem tswj tau tag nrho, cov ntaub ntawv kuaj dawb-formaldehyde kuj tuaj yeem tswj tau zoo. Peb tuaj yeem hais tias cov khoom amino resin series yog qhov tseem ceeb ntawm qhov ua rau muaj teeb meem formaldehyde dawb thaum lub sijhawm ua tawv.
Tau txiav txim siab sim tsim cov amino resins uas muaj formaldehyde tsawg thiab cov amino resins uas tsis muaj formaldehyde. Kev hloov kho txog cov ntsiab lus ntawm formaldehyde thiab kev ua tau zoo ntawm cov neeg sawv cev tanning yeej ib txwm ua.
Nrog kev khaws cia ntev ntawm kev paub, kev paub dhau los, kev tsim kho tshiab, kev tshawb fawb thiab kev txhim kho. Tam sim no, peb cov khoom tsim tsis muaj formaldehyde tiav lawm. Peb cov khoom tau ua tiav cov txiaj ntsig zoo heev, ob qho tib si hais txog kev ua tau raws li qhov xav tau 'zero formaldehyde' thiab nrog kev nplua nuj thiab txhim kho kev ua tau zoo ntawm cov neeg sawv cev tanning.
Pab tsim cov noob zoo thiab meej nrog xim ci ntsa iab
Pab tsim cov noob puv thiab nruj
Muab qhov puv npo, mos mos thiab ua kom tawv nqaij zoo
Muab cov noob nplej nruj heev thiab zoo heev nrog cov khoom zoo heev.
Muab cov noob nruj thiab tensile
Ua ib lub tuam txhab uas muaj lub luag haujlwm, peb yuav ua qhov no ua peb lub luag haujlwm thiab ua haujlwm tas li thiab tsis muaj zog mus rau lub hom phiaj kawg.
Tshawb nrhiav ntxiv