Probably, the treating liquid having a high penetrability to the recording medium diffuses rapidly to form a kind of an ink receiving layer on the surface of the recording medium, so that {HEAD ~ the ink} can easily penetrate and diffuse on {TAIL ~ the surface} to form a dot reacting with the treating liquid 
diffuse on
Probably , the treating liquid having a high penetrability to the recording medium diffuses rapidly to form a kind of an ink receiving layer on the surface of the recording medium , so that { HEAD ~ the ink } can easily penetrate and diffuse on { TAIL ~ the surface } to form a dot reacting with the treating liquid
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH