Rossi, Kimms & McDowell LLP
Ink-jet recording ink, ink-jet recording process, and ink-jet recording apparatus
An ink-jet recording ink which contains water, a coloring material and a surfactant, wherein the surfactant is in a content of from 0.6 to 5% by mass in the ink, and the ink further contains a block compound represented by the following formula (I):HO—(EO)a—(PO)b—(EO)c—H  (I)wherein EOs each represent an ethylene oxide moiety; PO represents a propylene oxide moiety; a, b and c satisfy a≧0, 2≦b≦12, c≧0 and 1≦a+c≦60; and the ethylene oxide moiety/-ies in one molecule is/are in a proportion of from 20 to 80% on the basis of mass. Also disclosed are an ink-jet recording process and an ink-jet recording apparatus which make use of this ink.
Canon Kabushiki Kaisha
C
C09D
inventional
Shoji Ryota
Koike Kato