Ink set for ink jet recording and ink jet recording method using the same
AssigneeSeiko Epson Corporation
InventorsKazuhide Kubota, Kiyohiko Takemoto
Life of this patent
Estimating the term…
Abstract
A cyan ink, for ink jet recording, capable of realizing good lightfastness and waterfastness and, in addition, capable of realizing a good image, especially an image having good hue, and an ink set comprising the above cyan ink in combination with a magenta ink and a yellow ink are provided. The use of a combination of C.I. Pigment Blue 60, 22, 64, or 21 with C.I. Pigment Blue 15:3 as a cyan ink enables the formation of a good image. An ink set comprising this cyan ink composition in combination with a yellow ink comprising C.I. Pigment Yellow 109 and C.I. Pigment Yellow 110 and a magenta ink comprising C.I. Pigment Red 122 or C.I. Pigment Red 209 can realize a good image.
Claims27
A cyan ink composition for ink jet recording, comprising at least one pigment represented by the following formula (I):
- ##STR6## wherein x is an integer of 0 to 3;
- and a pigment represented by the following formula (II):
- ##STR7##
A yellow ink composition for ink jet recording, comprising a pigment represented by the following formula (III):
- ##STR8## wherein Y.sub.1 to Y.sub.8 each independently represents a chlorine or hydrogen atom and R represents o-phenylene or 2,6-xylyl, or C.I. Pigment Yellow 138, 150 or 180.
Dependencies are inferred from the claim text.