I-Propanediol Kwezimonyo: Kuphephile?

-Delile

• Ivelaphi?
• Kusetshenziselwa ini kwezimonyo?
• Itholakala kuziphi izimonyo?
• Ngabe kuvela kanjani kuhlu lwezithako?
• Ingabe ihlukile kune-propylene glycol?
• Ingabe i-propanediol iphephile?
• Ingabe kubangela ukusabela okweqile?
• Kungasithinta yini isimiso sezinzwa?
• Kuphephile yini kwabesifazane abakhulelwe?
• Okubalulekile

Yini i-propanediol?

I-Propanediol (PDO) iyisithako esivamile kwizimonyo nemikhiqizo yokunakekelwa komuntu njengama-lotion, abahlanzayo nezinye izindlela zokwelapha isikhumba. Kuyinto yamakhemikhali efana ne-propylene glycol, kodwa kucatshangwa ukuthi iphephile.

Kodwa-ke, akukaze kube nezifundo ezanele okwamanje zokunquma ngokuqinisekile ukuphepha. Kepha uma ubheka idatha yamanje, kungenzeka kakhulu ukuthi i-PDO eyisihloko kwizimonyo iba nengozi ephansi yezinkinga ezinkulu.

I-PDO okwamanje ivunyelwe ukusetshenziswa kuzimonyo, ngamanani anqunyelwe, e-United States, Canada nase-Europe. Kodwa ingabe lokho kusho ukuthi kuphephe ngokuphelele? Sizobeka phansi futhi sihlaziye ubufakazi obuzokusiza ukuthi uthathe isinqumo esifanele wena nomndeni wakho.

Ivelaphi?

I-PDO yinto yamakhemikhali etholakala emmbileni noma kaphethiloli. Kungacaca noma kuphuzi kancane. Cishe ayinaphunga. Kungenzeka uthole i-PDO efakwe kuhlu njengesithako cishe kunoma yisiphi isigaba sezimonyo nemikhiqizo yokunakekelwa komuntu siqu.

Kusetshenziselwa ini kwezimonyo?

I-PDO inokusetshenziswa okuningi kwasendlini nasekukhiqizeni. Kutholakala emikhiqizweni enhlobonhlobo, kusuka kukhilimu wesikhumba kuya koyinki wephrinta kuya ku-auto antifreeze.

Izinkampani zezimonyo ziyayisebenzisa ngoba iyasebenza - nezindleko eziphansi - njengesithambisi. Kungasiza isikhumba sakho ukumunca ngokushesha ezinye izithako kumkhiqizo wakho owuthandayo. Kungasiza futhi ukuncibilikisa ezinye izithako ezisebenzayo.

Itholakala kuziphi izimonyo?

Ngokwe-Environmental Working Group (EWG), uzothola i-PDO kaningi kuma-moisturizers ebusweni, ama-serum, kanye nezifihla-buso zobuso. Kepha ungakuthola nakweminye imikhiqizo yokunakekelwa komuntu siqu, kufaka phakathi:

• antiperspirant
• umbala wezinwele
• ezambiwa
• isisekelo

Ngabe kuvela kanjani kuhlu lwezithako?

I-Propanediol ingabhalwa ngaphansi kwamagama ahlukahlukene. Okuvame kakhulu kufaka:

• 1,3-propanediol
• i-trimethylene glycol
• imethylpropanediol
• I-propane-1,3-diol
• 1,3-dihydroxypropane
• 2-deoxyglycerol

Ingabe ihlukile kune-propylene glycol?

Kukhona empeleni izinhlobo ezimbili ezihlukile ze-PDO: 1,3-propanediol ne-1,2-propanediol, eyaziwa nangokuthi yi-propylene glycol (PG). Kule ndatshana, sikhuluma nge-1,3-propanediol, yize lawa makhemikhali amabili efana.

Muva nje i-PG ithole umshini othile ongemuhle njengesithako sokunakekela isikhumba. Amaqembu okuvikela abathengi aphakamise ukukhathazeka kokuthi i-PG ingacasula amehlo nesikhumba, futhi iyi-allergen eyaziwayo kwabanye.

I-PDO kucatshangwa ukuthi iphephe kune-PG. Futhi yize amakhemikhali amabili anendlela efanayo efanayo yamangqamuzana, ukwakheka kwawo kwamangqamuzana kuhlukile. Lokho kusho ukuthi baziphatha ngendlela ehlukile lapho besetshenziswa.

I-PG ihlotshaniswa nemibiko eminingi yokucasulwa isikhumba namehlo nokuzwela, kanti imininingwane ye-PDO ayinabungozi kangako. Ngakho-ke, izinkampani eziningi seziqale ukusebenzisa i-PDO kumafomula azo esikhundleni se-PG.

Ingabe i-propanediol iphephile?

I-PDO ngokuvamile kucatshangwa ukuthi iphephile lapho imuncwa esikhunjeni ngamanani amancane avela kwizimonyo zamakhemikhali. Yize i-PDO ihlukaniswe njengesikhumba esikhungathekisayo, i-EWG iphawula ukuthi izingozi zezempilo ezimonyweni ziphansi.

Futhi ngemuva kokuthi iphaneli lochwepheshe abasebenzela iCosmetic Ingredient Review lihlaziye idatha yamanje kwi-propanediol, bakuthola kuphephile lapho kusetshenziswa izimonyo.

Ocwaningweni lwe-topical propanediol esikhunjeni somuntu, abacwaningi bathole kuphela ubufakazi bokucasuka kumaphesenti aphansi kakhulu abantu.

Olunye ucwaningo lukhombisile ukuthi i-propanediol yedosi ephezulu efomini yomlomo ingaba nomthelela obulalayo kumagundane elebhu. Kepha, lapho amagundane ehogela umhwamuko we-propanediol, izihloko zokuhlola azibonisanga kufa noma okunye ukucasuka okukhulu.

Ingabe kubangela ukusabela okweqile?

I-PDO ibangele ukucasuka kwesikhumba, kepha hhayi ukuzwela, kwezinye izilwane nabantu.

Ngakho-ke, ngenkathi abanye abantu bengathola ukucasuka ngemuva kokusetshenziswa, akubonakali kubangela ukusabela kwangempela. Ngokwengeziwe, i-PDO ayicasuli kakhulu kune-PG, eyaziwa kwesinye isikhathi ukuthi ibangele ukungezwani komzimba.

Kungasithinta yini isimiso sezinzwa?

Kunecala elilodwa elibhaliwe le-PDO elinikela ekufeni komuntu. Kepha leli cala lalibandakanya owesifazane ophuza ngamabomu inani elikhulu le-antifreeze eline-PDO.

Abukho ubufakazi bokuthi amanani amancane we-propanediol amunca esikhunjeni ngezimonyo angaholela ekufeni.

Kuphephile yini kwabesifazane abakhulelwe?

Azikho izifundo ezibuyekezwa ontanga ezibheke umphumela we-PDO ekukhulelweni komuntu njengamanje. Kepha lapho izilwane zelebhu zinikezwa imithamo ephezulu ye-PDO, azikho izinkinga zokuzalwa noma ukunqamuka kokukhulelwa okwenzekile.

Okubalulekile

Ngokuya ngemininingwane yamanje, ukusebenzisa izimonyo noma imikhiqizo yokunakekelwa komuntu equkethe amanani aphansi e-propanediol ayibeki ubungozi obukhulu. Inani elincane labantu kungenzeka licasule isikhumba ngemuva kokuchayeka okuningi, kepha akubonakali kuyingozi kunoma yini ebucayi.

Ngokwengeziwe, ipropanediol ikhombisa isithembiso njengenye indlela enempilo kune-propylene glycol njengesithako sokunakekelwa kwesikhumba.