The emulsifier charge defines the type of emulsion: anionic (negatively charged) and cationic (positively charged).
ðɪ ɪmˈʌlsɪfˌaɪɚ tʃˈɑːɹdʒ dᵻfˈaɪnz ðə tˈaɪp ʌv ɪmˈʌlʃən: ˌænaɪˈɑːnɪk nˈɛɡətˌɪvli tʃˈɑːɹdʒd ænd kˌæɾaɪˈɑːnɪk pˈɑːzᵻtˌɪvli tʃˈɑːɹdʒd.