Silicones hauv tshuaj pleev ib ce - lawv puas txaus ntshai? Qhov tseeb thiab cov dab neeg hais txog silicones

Silicones yog ib pawg ntawm cov khoom xyaw uas tau pom lawv txoj hauv kev rau hauv cov tshuaj pleev ib ce. Lawv tau siv, ntawm lwm yam, hauv kev tsim cov tshuaj zawv plaub hau, tshuaj pleev ib ce, ntsej muag lossis tes pleev, ntxuav gels, qhov ncauj qhov ntswg, nrog rau lub cev lossis plaub hau ntxuav thiab tu cov khoom. Ntau cov lus dab neeg tau tshwm sim nyob ib puag ncig silicones hauv cov tshuaj pleev ib ce, uas tau liam tias ua pov thawj rau lawv qhov tsis zoo ntawm daim tawv nqaij thiab plaub hau. Peb teb qhov tseeb ntawm cov khoom xyaw no - thiab seb lawv puas txaus ntshai.

Silicones hauv tshuaj pleev ib ce - yog dab tsi?

Lub npe "silicones" yog ib lo lus dav dav thiab hais txog ntau yam silicone polymers. Lawv cov koob meej hauv kev ua lag luam tshuaj pleev ib ce feem ntau cuam tshuam los ntawm qhov tseeb tias, tsis hais txog qib twg, lawv nyob twj ywm tsis muaj teeb meem rau kev noj qab haus huv. Qhov no tau lees paub los ntawm Pawg Neeg Saib Xyuas Kev Nyab Xeeb Kev Nyab Xeeb hauv kev xaus lus SCCS/1241/10 (Lub Rau Hli 22, 2010) thiab SCCS/1549/15 (Lub Xya Hli 29, 2016).

Lawv cov khoom thiab yog li lub hom phiaj ntawm kev siv txawv nyob ntawm cov pab pawg lossis cov khoom xyaw tshwj xeeb. Txawm li cas los xij, feem ntau silicones hauv tshuaj pleev ib ce yog lub luag haujlwm rau:

• Tsim ib qho ntxiv hydrophobic barrier - lawv txo cov dej ntws los ntawm daim tawv nqaij los yog plaub hau thiab yog li tuav cov nyhuv moisturizing ntawm cov khoom;
• ncua ntev ntawm kev ruaj ntseg ntawm emulsion sib xws - ua tsaug rau lawv, cream los yog tonal foundations tsis delaminate;
• prolongs lub durability ntawm cov khoom kom zoo nkauj ntawm daim tawv nqaij los yog plaub hau;
• yooj yim rau kev faib cov tshuaj pleev ib ce;
• nce lossis txo cov nyhuv ntawm foaming;
• txo cov viscosity ntawm cov khoom - tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm cov plaub hau tsuag, tonal foundations rau lub ntsej muag, hmoov los yog mascara;
• Qhov txo qis ntawm cov roj cov ntsiab lus ntawm cov khoom yog pom tau tsuas yog nyob rau hauv lub ntsej muag cream, uas tau ib tug sib zog nqus kev ntxhib los mos, thiab nyob rau hauv deodorants, qhov uas lawv ua kom paub tseeb tias lawv tsis tawm unsightly stains ntawm khaub ncaws thiab daim tawv nqaij.

Dab tsi yog cov npe ntawm silicones siv hauv tshuaj pleev ib ce? 

Dab tsi silicones tuaj yeem pom hauv cov tshuaj pleev ib ce? Lawv txawv li cas?

Hauv cov tshuaj pleev ib ce, feem ntau siv:

• Volatile (cyclic) silicones - yog tus cwj pwm los ntawm qhov tseeb tias tom qab ib ntus lawv evaporate ntawm lawv tus kheej, tawm hauv cov khoom siv ntxiv kom nkag mus tob rau hauv daim tawv nqaij. Feem ntau siv: cyclomethicone,
• Roj silicones (linear) - lawv tau npaj, ntawm lwm yam, los pab txhawb kev faib khoom ntawm daim tawv nqaij lossis plaub hau, txo cov viscosity ntawm cov khoom kom zoo nkauj thiab nws cov greasiness, thiab pab txhawb kev nqus. Feem ntau yog:
• Silicone waxes - pab pawg no suav nrog silicones nrog lub npe dav dav alkyldimethicone. Lawv ua ntej los ntawm kev xaiv ntxiv, xws li C20-24 lossis C-30-45. Qhov no yog ib pawg ntawm emollients uas tuaj yeem muaj ntau yam teebmeem; los ntawm cov nyhuv smoothing ntawm daim tawv nqaij los yog plaub hau, mus rau lub teeb daim ntawv thov ntawm ib tug cosmetic khoom, kom tshem tawm cov foaming nyhuv ntawm cov khoom.
• Silicone emulsifiers - xyuas kom meej tias cov emulsion muaj qhov tseeb, ua haujlwm ntev. Lawv tso cai rau kev ruaj khov ua ke ntawm cov khoom xyaw xws li roj thiab dej uas tsis sib tov los ntawm lub neej ntawd. Nov yog piv txwv:

Silicones hauv tshuaj pleev ib ce - dab tsi yog qhov tseeb txog lawv? Qhov tseeb thiab myths xwb

Raws li qhia saum toj no, silicones yog cov khoom lag luam uas muaj kev nyab xeeb rau kev noj qab haus huv. Qhov no yog pov thawj tsis tau tsuas yog los ntawm cov kev tshawb fawb yav dhau los ntawm Consumer Safety Committee, tab sis kuj los ntawm American Cosmetic Ingredient Review Panel. Lawv pom cov silicones hauv cov plaub hau thiab cov khoom tu cev kom muaj kev nyab xeeb.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov khoom xyaw no tsis nkag mus tob rau hauv daim tawv nqaij lossis rau hauv cov plaub hau qauv. Lawv nyob sab nraud, tsim ib zaj duab xis nyias nyias ntawm lawv qhov chaw. Yog li yuav tsis muaj kev cuam tshuam tsis zoo rau cov khaubncaws sab nraud povtseg ntawm daim tawv nqaij lossis kev puas tsuaj rau cov plaub hau los ntawm sab hauv! Txawm li cas los xij, nws yog cov ntaub ntawv no uas ua rau lub tswv yim thib ob: tias silicones yuav tsum "suffocate" ob qho tib si ntawm cov chaw kho mob, tiv thaiv lawv ntawm kev ua pa, yog li ua rau cov tawv nqaij thiab plaub hau ua rau sab nraud. Tsis muaj tseeb! Cov txheej tsim yog nyias txaus kom pub dawb ntws ntawm huab cua lossis dej tshwj xeeb. Yog li, lawv tsis tsuas yog nyem ntawm daim tawv nqaij los yog plaub hau, tab sis kuj tsis clog pores. Tsis tas li ntawd, "kev ua pa ntawm daim tawv nqaij" yog ib lo lus yooj yim heev uas tsis muaj qhov xav tau tiag tiag hauv cov txheej txheem physiological. Cov tawv nqaij ua tsis taus pa; tag nrho cov txheej txheem cuam tshuam txog kev sib pauv roj uas tshwm sim los ntawm nws cov txheej txheem. Thiab qhov no, raws li peb tau hais lawm, tsis cuam tshuam los ntawm silicones.

Lwm cov lus dab neeg yog tias silicone thov rau cov plaub hau adheres rau lawv, yog li ho hnyav thiab tiv thaiv kev nkag mus ntawm cov as-ham rau hauv cov plaub hau. Qhov no kuj tsis raug. Silicones pom nyob rau hauv cov tshuaj zawv plaub hau, tshuaj pleev ib ce los yog cov plaub hau styling cov khoom tawm ib tug nyias nyias zaj duab xis rau lawv. Ntxiv mus, raws li cov lus hais saum toj no, lawv tuaj yeem evaporate ntawm lawv tus kheej. Feem ntau, txawm li cas los xij, cov silicones qhuav yog siv hauv kev tu plaub hau, uas tsis tsim cov nplaum nplaum, greasy barrier. Tawm tsam; lawv cov qauv yog qab ntxiag rau qhov kov, cov plaub hau ua du, ci iab thiab xoob.

Tshuaj pleev ib ce nrog silicones - yuav los yog tsis?

Hauv kev xaus, silicones tsis yog cov khoom xyaw uas yuav txhawj txog. Ntawm qhov tsis sib xws, lawv tuaj yeem muaj txiaj ntsig zoo ntawm cov plaub hau thiab tawv nqaij thiab pab txhawb kev siv tshuaj pleev ib ce thiab lawv qhov nqus. Qhov kev xaiv muaj yog qhov loj heev, yog li txhua tus yuav pom cov tshuaj zoo meej rau lawv tus kheej. Silicone conditioners, shampoos, cheeses, cream, balms, masks los yog dyes yog ib qho yooj yim mus nrhiav tau ob qho tib si nyob rau hauv chaw muag tshuaj thiab nyob rau hauv Internet. Yog li xaiv cov khoom tsim nyog rau koj - tsis muaj kev txhawj xeeb txog koj txoj kev noj qab haus huv!

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