Cov nyhuv ntawm cov tshuaj pleev ib ce nyob ntawm tsis tsuas yog nyob rau hauv nws cov mis nyuj, tab sis kujntawm nws cov khoom ntim. Kev ntim khoom zoo tuaj yeem ua kom cov khoom ruaj khov thiab cov neeg siv kev paub dhau los. Nov yog ob peb yam tseem ceeb los xav txog thaum xaivntim tshuaj pleev ib ce.
Ua ntej, peb yuav tsum xav txog tus nqi pH thiab tshuaj lom neeg ruaj khov ntawm cov khoom. Piv txwv li, depilatory cream thiab plaub hau dyes feem ntau muaj pH siab. Rau cov khoom lag luam zoo li no, cov ntaub ntawv sib xyaw uas sib xyaw ua ke ntawm cov khoom siv tiv thaiv corrosion nrog cov impermeability ntawm txhuas yog cov kev xaiv ntim zoo tagnrho. Feem ntau, cov qauv ntim ntawm cov khoom zoo li no yuav siv cov ntaub ntawv ntau txheej xws li polyethylene / aluminium ntawv ci / polyethylene lossis polyethylene / ntawv / polyethylene.
Tom ntej no yog kev txiav txim siab ntawm xim stability. Qee cov khoom uas yooj yim ploj mus, xws li tshuaj pleev ib ce nrog cov xim, tuaj yeem ntab hauviav fwj. Yog li, rau cov khoom lag luam no, xaiv cov khoom ntim khoom tsis zoo, xws li opaque yas fwj lossis cov iav fwj, tuaj yeem tiv thaiv cov teeb meem fading los ntawm ultraviolet rays.
Cov tshuaj pleev ib ce nrog cov roj-dej sib tov, xws li roj-hauv-dej cream, muaj ntau dua nrog cov yas thiab tsim nyog rau ntim rau hauv cov thawv yas. Rau cov khoom siv cua xws li tshuaj tua kab, ntim aerosol yog qhov kev xaiv zoo vim nws siv tau zoo.
Kev nyiam huv kuj yog qhov tseem ceeb hauv kev xaiv ntim khoom. Piv txwv li, cov khoom ntim hauv tsev kho mob yog qhov tsim nyog rau kev ntim cov twj tso kua mis kom cov khoom tu cev.
Hais txog cov ntaub ntawv, PET (polyethylene terephthalate) yog tsim rau 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 degradation thaum lub sij hawm cua sov, thiab feem ntau yuav tsum tau ntxiv stabilizers los txhim kho nws cov khoom. Cov thawv hlau yog dav siv nyob rau hauv ntim cov khoom aerosol, thaum lub thawv aluminium yog siv los ua cov thawv aerosol, lipsticks thiab lwm yam tshuaj pleev ib ce ntim vim lawv yooj yim ua thiab corrosion kuj.
Raws li ib qho ntawm cov khoom ntim khoom qub tshaj plaws, iav muaj qhov zoo ntawm cov tshuaj inertness, corrosion kuj, thiab tsis-xws li, thiab tshwj xeeb tshaj yog haum rau ntim cov khoom uas tsis muaj alkaline cov khoom xyaw. Tab sis nws qhov tsis zoo yog tias nws nkig thiab tawg.
Cov ntim yas yog siv dav vim nws qhov kev tsim kho tau yooj yim, kev tiv thaiv corrosion, tus nqi qis, thiab tsis tawg, tab sis nws yuav tsum tau ceev faj tias cov permeability ntawm propellants thiab active tshuaj rau tej plastics yuav cuam tshuam rau cov khoom zoo.
Thaum kawg, peb yuav tsum xav txog qhov ntim ntawm cov khoom aerosol. Cov khoom zoo li no feem ntau yog siv cov khoom ntim uas muaj zog-resistant xws li hlau, iav lossis yas. Ntawm lawv, tinplate peb-thooj aerosol cov kaus poom yog siv dav tshaj plaws. Txhawm rau txhim kho cov nyhuv atomization, cov cuab yeej siv nrog cov roj theem sab qhov tuaj yeem siv tau.
Kev xaiv ntawmntim tshuaj pleev ib ceyog txoj kev txiav txim siab nyuaj, uas yuav tsum muaj cov tuam txhab tsim khoom kom ntseeg tau cov khoom zoo thaum tseem xav txog kev tiv thaiv ib puag ncig, nqi, thiab kev siv yooj yim. Los ntawm kev tshawb fawb 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 lag luam thiab txhim kho cov neeg siv khoom.
Post lub sij hawm: May-31-2024