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 
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
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