Patent ID: 9580614
Date: 2017-02-28
CPC Classifications: B41J,C09D

Claim:
1. An ink set comprising: a first ink composition containing a first pigment of 1.5% by mass or more and an alkanediol of 3% by mass or more and 20% by mass or less, the alkanediol having 6 or less carbon atoms and having a normal boiling point of 245° C. or more, and the first ink composition being a thick ink composition; and a second ink composition containing a second pigment of less than 1.5% by mass, the second pigment being a color that is the same as the first ink composition, and includes a penetrant other than the alkanediol, the second ink composition being a thin ink composition, wherein the second ink composition having an osmotic force higher than that of the first ink composition, and wherein the ink set being for recording an image on a recording medium by discharging ink droplets of the first ink composition and the second ink composition with a recording head.