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