Ink composition and ink jet recording method
First Claim
Patent Images
1. An aqueous ink composition comprising:
- a color microparticle dispersion comprising an oil-soluble dye;
a hydrophilic organic solvent; and
a fluorine t surfactant represented by Formula (1) or Formula (2);
R—
(CF2)m—
(CH2)n—
Y1-L1-Z
Formula (1)wherein R represents a hydrogen atom or a fluorine atom;
m denotes a number of 3 to 8;
n denotes a number of 0 to 6;
Y1 represents a connecting group selected from the group consisting of —
O—
, —
S—
, —
SO2— and
—
SO—
;
L1 represents a constitutional divalent group having 2 or more carbon atoms; and
Z represents an anionic group or its salt, or wherein R represents a hydrogen atom or a fluorine atom;
m denotes a number of 3 to 8;
n denotes a number of 0 to 6;
Y2 represents a connecting group selected from the group consisting of —
O—
, —
S—
, —
SO2— and
—
SO—
;
L2 represents a constitutional divalent group having 2 or more carbon atoms; and
Z represents an anionic group or its salt.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides an aqueous ink composition comprising a color microparticle dispersion including an oil-soluble dye, a hydrophilic organic solvent and a perfluoroalkylenesulfonic acid or a fluorine type surfactant other than derivatives thereof, and an ink jet method for recording an image by using this aqueous ink composition.
-
Citations
21 Claims
-
1. An aqueous ink composition comprising:
-
a color microparticle dispersion comprising an oil-soluble dye; a hydrophilic organic solvent; and a fluorine t surfactant represented by Formula (1) or Formula (2);
R—
(CF2)m—
(CH2)n—
Y1-L1-Z
Formula (1)wherein R represents a hydrogen atom or a fluorine atom;
m denotes a number of 3 to 8;
n denotes a number of 0 to 6;
Y1 represents a connecting group selected from the group consisting of —
O—
, —
S—
, —
SO2— and
—
SO—
;
L1 represents a constitutional divalent group having 2 or more carbon atoms; and
Z represents an anionic group or its salt, orwherein R represents a hydrogen atom or a fluorine atom;
m denotes a number of 3 to 8;
n denotes a number of 0 to 6;
Y2 represents a connecting group selected from the group consisting of —
O—
, —
S—
, —
SO2— and
—
SO—
;
L2 represents a constitutional divalent group having 2 or more carbon atoms; and
Z represents an anionic group or its salt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An ink jet recording method for recording an image comprising:
-
supplying an aqueous ink jet recording ink to an ink recording system, and jetting the ink from the ink jet recording system and applying the ink to a surface for receiving the image, wherein the aqueous ink composition comprises a color microparticle dispersion comprising an oil-soluble dye, a hydrophilic organic solvent and a fluorine surfactant represented by Formula (1) or Formula (2);
R—
(CF2)m—
(CH2)n—
Y1-L1-Z
Formula (1)wherein R represents a hydrogen atom or a fluorine atom;
m denotes a number of 3 to 8;
n denotes a number of 0 to 6;
Y1 represents a connecting group selected from the group consisting of —
O—
, —
S—
, —
SO2— and
—
SO—
;
L1 represents a constitutional divalent group having 2 or more carbon atoms; and
Z represents an anionic group or its salt, orwherein R represents a hydrogen atom or a fluorine atom;
m denotes a number of 3 to 8;
n denotes a number of 0 to 6;
Y2 represents a connecting group selected from the group consisting of —
O—
, —
S—
, —
SO2— and
—
SO—
;
L2 represents a constitutional divalent group having 2 or more carbon atoms; and
Z represents an anionic group or its salt. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. An aqueous ink composition comprising:
-
a color microparticle dispersion comprising an oil-soluble dye; a hydrophilic organic solvent; and a fluorine surfactant selected from the group consisting of the following compounds;
wherein X represents a hydrogen atom or a cation.
-
Specification