Aqueous ink set for ink jet recording, recording method, and ink jet recording apparatus

Patent metadata

Field	Value
Publication number	US-10016981-B2
Application number	US-201715602458-A
Country	US
Kind code	B2
Filing date	May 23, 2017
Priority date	Jun 30, 2016
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

An aqueous ink set for ink jet recording includes an aqueous pigment ink containing water and a pigment as a coloring agent and an aqueous dye ink containing water and a dye as a coloring agent, in which the concentration of the divalent metal ions of the pigment ink is 10 ppm or more, and the potassium ion concentration of the dye ink is 50 ppm or less.

First claim

What is claimed is:

1. An aqueous ink set for ink jet recording comprising:
an aqueous pigment ink containing water and a pigment as a coloring agent; and
an aqueous dye ink containing water and a dye as a coloring agent,
wherein the concentration of the divalent metal ions of the pigment ink is 10 ppm or more, and
the potassium ion concentration of the dye ink is 50 ppm or less.

2. The aqueous ink set for ink jet recording according to claim 1 , in which a total concentration of lithium ions and sodium ions of the dye ink is 600 ppm or more.

3. The aqueous ink set for ink jet recording according to claim 1 , further comprising:
a yellow ink;
a magenta ink;
a cyan ink; and
a black ink,
wherein the black ink is composed of the pigment ink, and
the yellow ink, the magenta ink and the cyan ink are composed of the dye ink.

4. The aqueous ink set for ink jet recording according to claim 3 ,
wherein the cyan ink contains one or more selected from the group having coloring materials represented by the following Formula (C-1) and the following Formula (C-2),

(In Formula (C-1),
R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 and R 15 each independently represent a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxyl group, a nitro group, an amino group, an alkylamino group, an alkoxy group, an aryloxy group, an amide group, an arylamino group, a ureido group, a sulfamoylamino group, an alkylthio group, an arylthio group, an alkoxycarbonylamino group, a sulfonamide group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, a heterocyclic oxy group, an azo group, an acyloxy group, a carbamoyloxy group, a silyloxy group, an aryloxycarbonyl group, an aryloxycarbonylamino group, an imide group, a heterocyclic thio group, a phosphoryl group, an acyl group or an ionic hydrophilic group, These groups may further have a substituent,
Z 1 , Z 2 , Z 3 and Z 4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, Provided that at least one of Z 1 , Z 2 , Z 3 and Z 4 has an ionic hydrophilic group as a substituent,
l, m, n, p, q 1 , q 2 , q 3 and q 4 each independently represent 1 or 2,
M 1 represents a hydrogen atom, a metal element, a metal oxide, a metal hydroxide or a metal halide,)

(In Formula (C-2),
R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 and R 16 each independently represent a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxyl group, a nitro group, an amino group, an alkylamino group, an alkoxy group, an aryloxy group, an amide group, an arylamino group, a ureido group, a sulfamoylamino group, an alkylthio group, an arylthio group, an alkoxycarbonylamino group, a sulfonamide group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, a heterocyclic oxy group, an azo group, an acyloxy group, a carbamoyloxy group, a silyloxy group, an aryloxycarbonyl group, an aryloxycarbonylamino group, an imide group, a heterocyclic thio group, a phosphoryl group, an acyl group or an ionic hydrophilic group, These groups may further have a substituent,
Z 5 , Z 6 , Z 7 and Z 8 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, Provided that at least one of Z 5 , Z 6 , Z 7 and Z 8 has an ionic hydrophilic group as a substituent,
t, u, v, w, q 5 , q 6 , q 7 and q 8 each independently represent 1 or 2,
M 2 represents a hydrogen atom, a metal element, a metal oxide, a metal hydroxide or a metal halide).

5. The aqueous ink set for ink jet recording according to claim 3 ,
wherein the magenta ink contains one or more selected from the group having coloring materials represented by the following Formula (M-1) and the following Formula (M-2),

(In Formula (M-1), A M1 represents an alkylene group having 1 or 2 carbon atoms, an alkylene group having 1 or 2 carbon atoms and containing a phenylene group or a group represented by the following Formula (M-1-1), and X M1 represents an amino group, a hydroxyl group, a chlorine atom, or a phenoxy group substituted with a sulfo group or a carboxyl group)

(In Formula (M-1-1), R M1 represents a hydrogen atom or an alkyl group)

(In Formula (M-2), A M2 represents a 5-membered heterocyclic group,
B M21 and B M22 each represent —CR M21 ═, —CR M22 ═, or any one of B M21 and B M22 represents a nitrogen atom, and the other represents —CR M21 ═ or —CR M22 ═,
R M23 and R M24 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkylsulfonyl group, an arylsulfonyl group, or a sulfamoyl group, R M23 , R M24 may further have a substituent,
G M2 , R M21 and R M22 each independently represent a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a carboxyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a hydroxyl group, an alkoxy group, an aryloxy group, a silyloxy group, an acyloxy group, a carbamoyloxy group, a heterocyclic oxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an amino group substituted with an alkyl group, an aryl group or a heterocyclic group, an acylamino group, a ureido group, a sulfamoylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, alkyl and arylsulfonylamino groups, an aryloxycarbonylamino group, a nitro group, alkyl and arylthio groups, alkyl and arylsulfonyl groups, alkyl and arylsulfinyl groups, a sulfamoyl group, a sulfo group, or a heterocyclic thio group, G M2 , R M21 , and R M22 may be further substituted, and
R M21 and R M23 , or R M23 and R M24 may combine to form a 5- or 6-membered ring).

6. The aqueous ink set for ink jet recording according to claim 3 ,
wherein the yellow ink contains one or more selected from the group having coloring materials represented by the following Formula (Y-1),

(In Formula (Y-1), R 4 represents a substituent, R 5 represents —OR 6 or —NHR 7 , R 6 and R 7 represent a hydrogen atom or a substituent, X 3 represents a divalent linking group, n0 is 0 or 1, Ar 3 represents a divalent heterocyclic group, and Ar 4 represents an alkyl group, an aryl group or a triazine group).

7. A recording method in which recording is performed by jetting the pigment ink and the dye ink according to cla

Assignees

• Seiko Epson Corp

Inventors

• Hama Shintaro
• Teramoto Ryosuke
• Miyake Yuho
• Aoyama Tetsuya

Classifications

• C09D11/40 Primary

  Ink-sets specially adapted for multi-colour inkjet printing · CPC title

• C09D11/322

  Pigment inks · CPC title

• C09D11/30

  Inkjet printing inks · CPC title

• C09D11/037

  characterised by the pigment · CPC title

• C09D11/033

  characterised by the solvent · CPC title