 mixing the colorant solution with {HEAD ~ water} and {TAIL ~ an emulsifying agent} so as to obtain a colorant emulsion; and 
mixing the colorant solution with { HEAD ~ water } and { TAIL ~ an emulsifying agent } so as to obtain a colorant emulsion ; and
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH