Raws li cov xim dawb siv dav hauv cov tshuaj pleev ib ce, kev nyab xeeb ntawm titanium dioxide (titanium dioxide) ib txwm muaj kev txhawj xeeb. Txhawm rau kom muaj kev noj qab haus huv thiab kev nyab xeeb ntawm cov neeg siv khoom, lub teb chaws thiab cov koom haum thoob ntiaj teb tau tsim cov qauv kev nyab xeeb nruj thiab cov kev cai rau kev siv titanium dioxide hauv cov tshuaj pleev ib ce.
International Standards
1. EU Kev Cai Tshuaj Txhuam Hniav
- EU muaj cov cai nruj rau titanium dioxide siv hauv tshuaj pleev ib ce. Raws li EU Kev Tswj Xyuas Tshuaj Txhuam Hniav (EC) No 1223/2009, qhov siab tshaj plaws tso cai ntawm titanium dioxide hauv tshuaj pleev ib ce yog 25%. Tsis tas li ntawd, EU tseem xav kom nano- qib titanium dioxide hauv cov tshuaj pleev ib ce yuav tsum tau soj ntsuam kev nyab xeeb kom ntseeg tau tias nws tsis muaj teeb meem rau tib neeg lub cev.
2. US Food and Drug Administration (FDA)
- US FDA kuj muaj cov kev cai meej ntawm titanium dioxide siv hauv tshuaj pleev ib ce. Raws li FDA cov cai, titanium dioxide tuaj yeem siv los ua cov xim pleev xim rau hauv cov tshuaj pleev ib ce, tab sis nws yuav tsum tau ua raws li cov qauv purity. Tsis tas li ntawd, FDA tseem xav kom siv cov titanium dioxide yuav tsum tau qhia rau ntawm daim ntawv tshuaj pleev ib ce.
3. International Cosmetic Regulatory Agency (ICCR)
- ICCR yog ib lub koom haum thoob ntiaj teb uas tsim los ntawm cov koom haum saib xyuas kev noj qab haus huv los ntawm ntau lub teb chaws thiab cheeb tsam. ICCR tau ua qhov kev ntsuam xyuas dav dav txog kev nyab xeeb ntawm titanium dioxide siv hauv tshuaj pleev ib ce thiab tau tshaj tawm cov ntaub ntawv qhia txog kev nyab xeeb. ICCR pom zoo tias titanium dioxide siv hauv cov tshuaj pleev ib ce yuav tsum ua kom tau raws li qhov loj me thiab cov qauv purity kom ntseeg tau tias nws muaj kev nyab xeeb.
National Standards
1. Suav National Standards
- Tuam Tshoj kuj muaj cov kev cai nruj ntawm titanium dioxide siv hauv tshuaj pleev ib ce. Raws li Cosmetic Hygiene Standards (2007 tsab), titanium dioxide siv hauv cov tshuaj pleev ib ce yuav tsum ua tau raws li cov qauv purity tshwj xeeb thiab qhov siab tshaj plaws tso cai yog 25%. Tsis tas li ntawd, Tuam Tshoj kuj xav kom cov tuam txhab tshuaj pleev ib ce los ua kev tswj hwm nruj ntawm titanium dioxide siv los xyuas kom meej tias nws muaj kev nyab xeeb.
2. Nyiv kev cai tshuaj pleev ib ce
- Nyiv kuj muaj cov kev cai meej ntawm titanium dioxide siv hauv tshuaj pleev ib ce. Raws li txoj cai Japanese Cosmetic Law, titanium dioxide siv rau hauv cov tshuaj pleev ib ce yuav tsum ua tau raws li cov qauv purity tshwj xeeb thiab qhov siab tshaj plaws tso cai yog 25%. Tsis tas li ntawd, Nyiv kuj xav kom cov tuam txhab tsim tshuaj pleev ib ce los ua kev tswj hwm nruj ntawm titanium dioxide siv los xyuas kom meej tias nws muaj kev nyab xeeb.
3. Kaus Lim Kauslim Kev Cai Tshuaj Txhuam Hniav
- Kaus Lim Kauslim kuj muaj cov kev cai nruj ntawm titanium dioxide siv hauv tshuaj pleev ib ce. Raws li Kauslim Cosmetic Law, titanium dioxide siv rau hauv cov tshuaj pleev ib ce yuav tsum ua raws li cov qauv purity tshwj xeeb thiab qhov siab tshaj plaws tso cai yog 25%. Tsis tas li ntawd, Kaus Lim Qab Teb tseem xav kom cov tuam txhab tshuaj pleev ib ce los tswj hwm kev tswj hwm zoo ntawm titanium dioxide siv los xyuas kom meej tias nws muaj kev nyab xeeb.
Kev ntsuas kev nyab xeeb
1. Particle loj
- Qhov loj me me ntawm titanium dioxide muaj qhov cuam tshuam tseem ceeb rau nws txoj kev nyab xeeb. Cov kev tshawb fawb tau pom tias nano- qib titanium dioxide tej zaum yuav muaj kev lom zem ntau dua, yog li yuav tsum muaj kev ntsuas kev nyab xeeb ntxiv. Tam sim no, feem ntau lub teb chaws thiab cheeb tsam muaj cov kev cai nruj heev ntawm kev siv nano- qib titanium dioxide.
2. Kev ntshiab
- Lub purity ntawm titanium dioxide kuj tseem muaj feem cuam tshuam rau nws txoj kev nyab xeeb. High -purity titanium dioxide tuaj yeem txo qhov kev puas tsuaj ntawm impurities rau tib neeg lub cev. Yog li ntawd, lub teb chaws thiab thoob ntiaj teb cov koom haum muaj kev nruj me ntsis ntawm purity ntawm titanium dioxide siv hauv tshuaj pleev ib ce.
3. tawv nqaij khaus
- Cov tawv nqaij khaus ntawm titanium dioxide kuj yog ib qho kev qhia tseem ceeb rau kev ntsuas nws txoj kev nyab xeeb. Cov kev tshawb fawb tau pom tias siab -purity titanium dioxide tsis tshua ua rau ntawm daim tawv nqaij, yog li titanium dioxide siv hauv cov tshuaj pleev ib ce yuav tsum sim xaiv cov khoom siab tshaj -purity.
4. Kev ua xua
- Titanium dioxide tuaj yeem ua rau muaj kev tsis haum tshuaj, yog li titanium dioxide siv hauv cov tshuaj pleev ib ce yuav tsum sim xaiv cov khoom tsis haum tshuaj tsawg. Tsis tas li ntawd, cov tuam txhab tshuaj pleev ib ce yuav tsum ua cov kev ntsuas nruj nruj ntawm titanium dioxide siv los xyuas kom meej tias nws muaj kev nyab xeeb.
Xaus
Raws li cov xim dawb siv dav hauv cov tshuaj pleev ib ce, kev nyab xeeb ntawm titanium dioxide yeej ib txwm muaj kev txhawj xeeb. Txhawm rau kom muaj kev noj qab haus huv thiab kev nyab xeeb ntawm cov neeg siv khoom, lub teb chaws thiab cov koom haum thoob ntiaj teb tau tsim cov qauv kev nyab xeeb nruj thiab cov kev cai rau kev siv titanium dioxide hauv cov tshuaj pleev ib ce. Cov tuam txhab lag luam tshuaj pleev ib ce yuav tsum ua raws li cov qauv thiab cov kev cai no nruj me ntsis thiab tswj xyuas cov titanium dioxide kom zoo. Cov neeg siv khoom yuav tsum tau them sai sai rau qhov zoo thiab kev nyab xeeb ntawm cov khoom thaum yuav khoom thiab siv cov tshuaj pleev ib ce uas muaj titanium dioxide, thiab xaiv cov khoom muaj npe nrov thiab cov khoom lag luam.
