Emulsifier ni ubwoko bwibintu bishobora gukora imvange yibice bibiri cyangwa byinshi bidasobanutse bikora emulisiyo ihamye.Ihame ryibikorwa biri murwego rwo gusohora, icyiciro cyatatanye muburyo bwibitonyanga (microns) bikwirakwijwe mugice gikomeza, igabanya ubukana bwimiterere ya buri kintu muri sisitemu ivanze, kandi hejuru yigitonyanga kugirango ikore firime ihamye cyangwa bitewe nubushakashatsi bwa emulisiferi itangwa mugutonyanga hejuru yigitereko cyumuriro wamashanyarazi abiri, kubuza ibitonyanga guterana, no gukomeza ubumwe emuliyoni. Uhereye ku cyiciro cya fonctionnement, emulion iracyari itandukanye. Icyiciro cyatatanye muri emulsiyo gishobora kuba icyiciro cyamazi cyangwa icyiciro cyamavuta, ibyinshi muribyiciro byamavuta. Icyiciro gikomeza gishobora kuba amavuta cyangwa amazi, kandi ibyinshi muribyo ni amazi. Kuri emulisiferi ni surfactant hamwe nitsinda rya hydrophilique hamwe nitsinda rya lipofilique muri molekile.Mu rwego rwo kwerekana imiterere ya hydrophilique cyangwa lipofilique ya emulisiferi, "agaciro ka hydrophilique lipophilic equilibrium (agaciro ka HLB)" gakoreshwa.Hasi agaciro ka HLB, niko imbaraga za lipofilique ya emulifisiyeri.Mu buryo bunyuranye, hejuru ya HLB, niko hydrophilicity ikomera. Emulifiseri zitandukanye zifite agaciro ka HLB zitandukanye.Kugirango ubone emulisiyo ihamye, emulisiferi ikwiye igomba guhitamo.