Cov nyhuv ntawm cov tshuaj pleev ib ce tsis yog nyob ntawm nws cov mis sab hauv xwb, tab sis kujntawm nws cov ntaub ntawv ntim khoom. Lub ntim khoom zoo tuaj yeem ua kom cov khoom ruaj khov thiab kev paub ntawm tus neeg siv. Nov yog ob peb yam tseem ceeb uas yuav tsum xav txog thaum xaivkev ntim khoom kom zoo nkauj.
Ua ntej, peb yuav tsum xav txog tus nqi pH thiab kev ruaj khov ntawm cov khoom. Piv txwv li, cov tshuaj pleev depilatory thiab cov xim plaub hau feem ntau muaj tus nqi pH siab. Rau cov khoom zoo li no, cov ntaub ntawv sib xyaw ua ke uas ua ke qhov kev tiv thaiv corrosion ntawm cov yas nrog rau kev tsis nkag ntawm txhuas yog cov kev xaiv ntim khoom zoo tagnrho. Feem ntau, cov qauv ntim khoom ntawm cov khoom zoo li no yuav siv cov ntaub ntawv sib xyaw ntau txheej xws li polyethylene / txhuas ntawv ci / polyethylene lossis polyethylene / ntawv / polyethylene.
Tom ntej no yog qhov kev xav txog kev ruaj khov ntawm cov xim. Qee cov khoom uas yooj yim ploj mus, xws li cov tshuaj pleev ib ce uas muaj cov xim, yuav ntab rau hauvlub raj mis iavYog li ntawd, rau cov khoom no, kev xaiv cov ntaub ntawv ntim khoom uas tsis pom tseeb, xws li lub raj mis yas uas tsis pom tseeb lossis lub raj mis iav uas muaj txheej, tuaj yeem tiv thaiv cov teeb meem ploj mus los ntawm cov duab ultraviolet.
Cov tshuaj pleev ib ce uas muaj roj thiab dej sib xyaw, xws li cov tshuaj pleev roj hauv dej, sib haum nrog cov yas ntau dua thiab tsim nyog rau kev ntim khoom hauv cov thawv yas. Rau cov khoom siv huab cua xws li tshuaj tua kab, kev ntim khoom aerosol yog qhov kev xaiv zoo vim nws siv tau zoo.
Kev huv huv kuj yog ib qho tseem ceeb uas yuav tsum xav txog thaum xaiv cov khoom ntim. Piv txwv li, cov khoom ntim hauv tsev kho mob zoo dua rau cov twj tso kua mis ntim kom cov khoom huv.
Hais txog cov ntaub ntawv, PET (polyethylene terephthalate) yog qhov tsim nyog rau kev ntim cov tshuaj txhua hnub vim nws cov khoom siv tshuaj zoo thiab pob tshab. PVC (polyvinyl chloride) yuav tsum tau them sai sai rau qhov teeb meem kev puas tsuaj thaum lub sijhawm cua sov, thiab feem ntau yuav tsum ntxiv cov stabilizers los txhim kho nws cov khoom. Cov thawv hlau siv dav hauv kev ntim khoom ntawm cov khoom aerosol, thaum cov thawv txhuas siv los ua cov thawv aerosol, lipsticks thiab lwm yam khoom siv pleev ib ce vim lawv yooj yim ua thiab tiv taus corrosion.
Ua ib qho ntawm cov ntaub ntawv ntim khoom qub tshaj plaws, iav muaj qhov zoo ntawm kev tsis muaj tshuaj lom neeg, tiv taus corrosion, thiab tsis xau, thiab tshwj xeeb tshaj yog rau cov khoom ntim khoom uas tsis muaj cov khoom xyaw alkaline. Tab sis nws qhov tsis zoo yog tias nws tawg thiab tsis yooj yim tawg.
Cov yas ntim khoom siv dav dav vim nws tsim tau yooj ywm, tiv taus xeb, pheej yig, thiab tsis tawg, tab sis nws yog ib qho tsim nyog yuav tsum ceev faj tias qhov permeability ntawm propellants thiab cov tshuaj nquag rau qee cov yas yuav cuam tshuam rau qhov zoo ntawm cov khoom.
Thaum kawg, peb yuav tsum xav txog qhov ntim khoom ntawm cov khoom siv aerosol. Cov khoom no feem ntau siv cov khoom siv uas tiv taus siab xws li hlau, iav lossis yas. Ntawm lawv, tinplate peb daim aerosol cans yog cov siv dav tshaj plaws. Txhawm rau txhim kho cov nyhuv atomization, lub cuab yeej nrog lub qhov sab ntawm cov roj kuj tseem siv tau.
Kev xaiv ntawmkev ntim khoom kom zoo nkaujyog ib qho txheej txheem txiav txim siab nyuaj, uas xav kom cov chaw tsim khoom xyuas kom meej tias cov khoom zoo thaum tseem xav txog kev tiv thaiv ib puag ncig, tus nqi, thiab kev yooj yim siv. Los ntawm kev tshuaj xyuas kev tshawb fawb thiab kev tsim qauv zoo, kev ntim khoom kom zoo nkauj tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov khoom thiab txhim kho kev paub ntawm cov neeg siv khoom.
Lub sijhawm tshaj tawm: Tsib Hlis-31-2024
