摘要 |
<p>An ink for ink jet recording and an ink jet recording method which realize an image quality of laser printer on a plain paper in a one-pass printing mode under conditions of a volume of an ink droplet ejected being 5 to 43 Pico liter, a velocity of an ink droplet being 6 to 20 m/sec, frequency of 1 kHz and resolution of 300 dpi or more. The ink for ink jet recording is a penetrating type ink which comprises (1) at least one humectant selected from glycerin, 1,3-butandiol, triethyleneglycol, 1,6-hexanediol, propyleneglycol, 1,5-pentanediol, diethyleneglycol, dipropyleneglycol, trimethylolpropane and trimethylolethane, (2) colorant contained in the amount of 6 % by weight or more, (3) a polyol having 8 to 11 carbon atoms and glycolether, and an anionic surfactants or non-ionic surfactants, the ink has viscosity of 5 mPa.s or more at 25 DEG C and a surface tension of 40 mN/m or less.</p> |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
ARITA, HITOSHI;NAGAI, KIYOFUMI;GOTOH, AKIHIKO;BANNAI, AKIKO;KANEKO, TETSUYA;OSADA, NOBUTAKA;MAEDA, TOMOKO;KOYANO, MASAYUKI;MURAKAMI, KAKUJI;TOKUNO, TOSHIROH |