an ink set for ink - jet recording comprises a first ink which contains glycerol and a first coloring agent , and a second ink which contains a water - soluble organic solvent incompatible with glycerol and a second coloring agent and which does not contain glycerol . the first ink and the second ink are mixed with each other at a low speed . therefore , the inks permeate into the paper before the inks are mixed with each other . thus , it is possible to avoid the color bleeding .