Injongo yovavanyo lozinzo lweemveliso zokuthambisa kukuqinisekisa ukuba imveliso entsha okanye elungisiweyo idibana nomzimba ocetyiweyo,
imigangatho yobulunga beekhemikhali kunye ne-microbiological kunye nokusebenza kunye nobuhle xa zigcinwe phantsi kweemeko ezifanelekileyo.
Kuba umjikelo wophuhliso lweemveliso zokuthambisa umfutshane xa kuthelekiswa umenzi ngamnye kufuneka ayile eyakhe inkqubo yovavanyo lozinzo ukuze ibe nengqiqo ngokoqoqosho kwaye ijongane ngokufanelekileyo novavanyo olufunekayo.
Ngenxa yeentlobo ezininzi zeemveliso zokuthambisa "umgangatho" weemvavanyo zokuzinza azikwazi ukumiselwa. Abavelisi bafuna ukuba bhetyebhetye ukuguqula iiprothokholi zovavanyo kunye nokwakha isiseko esivakalayo sezenzululwazi sokuvavanya uzinzo kwiimveliso zabo. Ke, iimvavanyo ezithile zinokuphuhliswa ukuze kujongwe itekhnoloji entsha okanye engaqhelekanga, okanye ziqhelaniswe neemveliso ezinobomi obandisiweyo beshelufu.
Iimvavanyo zokuzinza zinokuqhutywa ngexesha langempela okanye phantsi kweemeko ezikhawulezayo kwaye kufuneka zijongane nokuzinza kwemveliso phantsi kweemeko ezifanelekileyo zokugcina, ukuthutha kunye nokusetyenziswa.
Uvavanyo loZinzo lwePhysical / Chemical
Oku kuchaza iindlela zokuqikelela ukuba izithambiso ziyakuxhathisa njani uxinzelelo oluqhelekileyo olufana nobushushu obugqithisileyo kunye nokukhanya. Ngokuqhelekileyo, abavelisi bagqiba ukuba benze uvavanyo olukhethekileyo olusekwe kubuthathaka bemveliso ethile yezithambiso kunye nokuthunyelwa kwayo okulindelekileyo, ukubonisa ukugcinwa kunye neemeko zokusebenzisa. Iinkqubo zovavanyo eziqhelekileyo ziquka:
Ukwahluka kweqondo lokushisa: Uvavanyo oluphezulu lobushushu ngoku lusetyenziswa ngokuqhelekileyo njengento yokuqikelela ukuzinza kwexesha elide. Uninzi lweenkampani ziqhuba uvavanyo lwazo lobushushu obuphezulu kwi-37oC (98F) kunye ne-45oC (113F). Ukuba imveliso igcinwe kwi-45oC iinyanga ezintathu (kwaye ibonisa ukuzinza okwamkelekileyo) ngoko kufuneka izinzile kwiqondo lokushisa legumbi iminyaka emibini. Ngokuqinisekileyo, imveliso kufuneka igcinwe kwi-25oC (77F) isithuba sonyaka omnye. Ubushushu bolawulo olulungileyo yi-4oC (39F) apho uninzi lweemveliso ziya kubonisa uzinzo olubalaseleyo. Imveliso kufuneka kwakhona iphantsi kwe -10oC (14F) iinyanga ezintathu.
Uvavanyo lweCycle: Imveliso kufuneka idlule imijikelo emithathu yovavanyo lobushushu ukusuka kwi -10oC (14F) ukuya kwi-25oC (77F). Beka imveliso kwi--10oC kwiiyure ezingama-24 kwaye uyibeke kwindawo yokushisa (25oC) kwiiyure ezingama-24. Oku kugqiba umjikelo omnye. Ukuba imveliso idlula imijikelo emithathu ngoko unokuba neqondo elihle lokuzithemba ekuzinzeni kwemveliso. Uvavanyo oluqatha ngakumbi luvavanyo lwe-five-cycle test -10oC ukuya kwi-45oC. Oku kubeka i-emulsions phantsi koxinzelelo olukhulu kwaye, ukuba iyaluphumelela uvavanyo, ibonisa ukuba unemveliso ezinzile ngokwenene.
Uvavanyo lwe-Centrifuge: Isigaba esihlakaziweyo (i-emulsion ye-oil-in-water-emulsion) inomkhuba wokuhlukana kunye nokunyuka ukuya phezulu kwe-emulsion eyenza i-layer ye-droplets oil. Le nto ibizwa ngokuba yi-creaming. I-Creaming enye yeempawu zokuqala zokungazinzi kwe-emulsion ezayo kwaye kufuneka ithathwe ngokungathí sina. Indlela elungileyo yokuvavanya ukuqikelela ukufakwa kwekhrimu kukubeka i-centrifugation. Fudumeza i-emulsion kwi-50oC (122F) kwaye uyibeke kwi-centrifuge imizuzu engamashumi amathathu kwi-3000 rpm. Emva koko uhlolisise imveliso ephumela kwiimpawu zekrimu. Olu vavanyo luyimfuneko ngokupheleleyo kwezo mveliso ziqulethe umgubo walo naluphi na uhlobo olufana ne-liquid/cream make-up.
UVavanyo lokuBheka okuKhanya: Zombini iifomyula kunye nokupakishwa kunokuba novakalelo kwimitha ye-UV. Zonke iimveliso kufuneka zibekwe, kwiglasi kunye nephakheji yokwenyani, efestileni kwaye ukuba ikhona ibhokisi yokukhanya enemveliso ebanzi. Beka enye ingqayi yeglasi egutyungelwe ngokupheleleyo ngefoyile ye-aluminium efestileni ukuze usebenze njengolawulo. Rhoqo siyakubona ukuguquguquka okubalulekileyo kwemveliso kwaye ngamanye amaxesha iphakheji nayo. Oku kutshintsha kwemibala kusenokuba ngenxa yevumba elimnandi okanye esinye isithako esibuthathaka. Ngokuqhelekileyo yonke into efunekayo kukongeza i-Absorbent ye-UV (umzekelo, i-0.1% ye-benzophenone).
HEYI, MASIQHUBEKE!
Ukuba unayo nayiphi na imibuzo malunga neemveliso okanye iinkonzo zethu, zive ukhululekile ukufikelela kwiqela lenkonzo yabathengi.
Dibana no
Ukuba unayo nayiphi na imibuzo malunga neemveliso okanye iinkonzo zethu, zive ukhululekile ukufikelela kwiqela lenkonzo yabathengi. Nikeza ngamava awodwa kuye wonke umntu obandakanyekayo nophawu. Sinexabiso elikhethekileyo kunye neemveliso ezikumgangatho ophezulu ukwenzela wena.