Emulsifier waa nooc ka mid ah walaxda samayn kara isku dhafka laba ama in ka badan oo aan la taaban karin oo sameysa emulsion deggan. Mabda'a ficilkeedu waa habka emulsion, marxaladda kala firidhsan ee qaabka dhibcaha (microns) oo ku kala firirsan wejiga joogtada ah, waxa waxay yaraynaysaa xiisadda dhexda ah ee qayb kasta oo ka mid ah nidaamka isku dhafan, iyo dusha sare ee dhibcaha si ay u sameeyaan filim adag ama sababtoo ah kharashka emulsifier ayaa lagu bixiyaa samaynta dusha sare ee dhibcaha ee lakabka labajibbaaran ee korantada, ka hortagga dhibco midba midka kale, iyo in la ilaaliyo lebiska. emulsion.Marka laga eego dhinaca aragtida, emulsion-ku weli waa kala duwan yahay. Wejiga kala firdhiyey ee emulsion wuxuu noqon karaa wejiga biyaha ama wejiga saliidda, kuwaas oo intooda badan ah wejiga saliidda. Wejiga joogtada ah wuxuu noqon karaa saliid ama biyo, iyo badidood. Emulsifier-ku waa dusha sare oo leh koox hydrophilic ah iyo koox lipophilic ah oo ku jirta molecule.Hoos u dhaca qiimaha HLB, ayaa sii xoogeysanaya sifooyinka lipophilic ee emulsifier. Taa lidkeeda, qiimaha HLB ee sarreeya, ayaa sii xoogeysanaya dareeraha.Si loo helo emulsions xasilloon, emulsifiers ku habboon waa in la doortaa.