Ink composition and ink set

Patent metadata

Field	Value
Publication number	US-9587129-B2
Application number	US-201514943477-A
Country	US
Kind code	B2
Filing date	Nov 17, 2015
Priority date	Nov 18, 2014
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

An ink composition includes, as dyes, a dye (Bk-1) represented by the formula (Bk-1); and a dye (Bw-1) represented by the formula (Bw-1), in which a content ratio A (dye (Bk-1):dye (Bw-1)) of the dye (Bk-1) and the dye (Bw-1) is 100:18 to 100:40.

First claim

What is claimed is:

1. An ink composition, comprising:
as dyes,
a dye (Bk-1) represented by the following formula (Bk-1);
a dye (Bw-1) represented by the following formula (Bw-1);
a dye (Y-1) represented by the following formula (Y-1); and
a dye (Y-2) represented by the following formula (Y-2):

wherein, R 4 represents a substituent, R 5 represents —OR 6 or —NHR 7 , R 6 and R 7 represents a hydrogen atom or a substituent, X 3 represents a bivalent linking group, n0 is 0 or 1, Ar 3 represents a bivalent hetero ring group, and Ar 4 represents an alkyl group, an aryl group or a triazine group:

wherein, R 1 represents a hydrogen atom or a substituent, R 2 represents a substituent, R 3 represents an alkyl group which may form an ionic hydrophilic group or a ring, n4 is 0 to 4, and n5 is 2 to 5,
wherein a content ratio A (dye (Bk-1):dye (Bw-1)) of the dye (Bk-1) and the dye (Bw-1) is 100:18 to 100:40; and
wherein the content ratio B (dye (Bk-1):dye (Bw-1):dye (Y-1):dye (Y-2)) of the dye (Bk-1), the dye (Bw-1), the dye (Y-1), and the dye (Y-2) is 100:20:5:5 to 100:40:12:12, and
a total content of the dyes is more than 3.5 mass %;

wherein, R 1 , R 2 , R 5 , R 6 , and R 7 each independently represent a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, a carboxyl group, a sulfo group, a sulfamoyl group, an N-alkyl aminosulfonyl group, N-phenyl-aminosulfonyl group, a (C1-C4) alkylsulfonyl group which may be substituted with a hydroxyl group, a phospho group, a nitro group, an acyl group, a ureido group, a (C1-C4) alkyl group which may be substituted with a hydroxyl group or a (C1-C4) alkoxy group, a (C1-C4) alkoxy group in which the alkyl group may be substituted with a hydroxyl group, a (C1-C4) alkoxy group, a sulfo group or a carboxyl group, an acylamino group, an alkylsulfonylamino group or a phenyl-sulfonylamino group in which the phenyl group may be substituted with a halogen atom, an alkyl group or a nitro group, R 3 and R 4 each independently represent a hydrogen atom, a halogen atom, a cyano group, a carboxyl group, a sulfo group, a nitro group, a (C1-C4) alkyl group which may be substituted with a hydroxyl group or a (C1-C4) alkoxy group, a (C1-C4) alkoxy group in which the alkyl group may be substituted with a hydroxyl group, a (C1-C4) alkoxy group, a sulfo group or a carboxyl group, an acylamino group, an alkylsulfonylamino group or a phenylsulfonylamino group in which the phenyl group may be substituted with a halogen atom, an alkyl group or a nitro group, and n represents 0 or 1:

wherein, R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , and R 28 each independently represent a hydrogen atom; a halogen atom; a sulfo group; a carboxy group; a sulfamoyl group; a carbamoyl group; a (C1-C4) alkyl group; a (C1-C4) alkoxy group with; a (C1-C4) alkoxy group which is substituted with at least one group selected from a group consisting of a hydroxy group, a (C1-C4) alkoxy group, a hydroxy(C1-C4) alkoxy group, a sulfo group, and a carboxy group as a substituent; a (C1-C4) alkylcarbonylamino group; a (C1-C4) alkylcarbonylamino group substituted with a carboxy group; a ureido group; a mono(C1-C4) alkylureido group; a di(C1-C4) alkylureido group; a mono(C1-C4) alkylureido group substituted with at least one group selected from the group consisting of a hydroxy group, a sulfo group, and a carboxy group as a substituent; a di(C1-C4) alkylureido group substituted with at least one group selected from the group consisting of a hydroxy group, a sulfo group, and a carboxy group as a substituent; a benzolamino group; a benzolamino group in which a benzene ring is substituted with at least one group selected from the group consisting of a halogen atom, a (C1-C4)alkyl group, a nitro group, a sulfo group, and a carboxy group; a benzenesulfonylamino group; or a phenylsulfonylamino group in which a benzene ring is substituted with at least one group selected from a halogen atom, a (C1-C4)alkyl group, a nitro group, a sulfo group, and a carboxy group; and X represents a bivalent crosslinking group.

2. An ink composition, comprising:
as dyes,
a dye (Bk-1) represented by the following formula (Bk-1);
a dye (Bw-1) represented by the following formula (Bw-1);
a dye (Y-1) represented by the following formula (Y-1); and
a dye (Y-2) represented by the following formula (Y-2):

wherein, R 4 represents a substituent, R 5 represents —OR 6 or —NHR 7 , R 6 and R 7 represents a hydrogen atom or a substituent, X, represents a bivalent linking group, n0 is 0 or 1, Ar 3 represents a bivalent hetero ring group, and Ar 4 represents an alkyl group, an aryl group or a triazine group:

wherein, R 1 represents a hydrogen atom or a substituent, R 2 represents a substituent, R 3 represents an alkyl group which may form an ionic hydrophilic group or a ring, n4 is 0 to 4, and n5 is 2 to 5,
wherein the content ratio A (dye (Bk-1):dye (Bw-1)) of the dye (Bk-1) and the dye (Bw-1) is 100:18 to 100:40;
wherein the content ratio B (dye (Bk-1):dye (Bw-1):dye (Y-1):dye (Y-2)) of the dye (Bk-1), the dye (Bw-1), the dye (Y-1), and the dye (Y-2) is 100:20:5:5 to 100:40:12:12, and
a total content of the dyes is more than 0.50 to 1.5 mass %:

wherein, R 1 , R 2 , R 5 , R 6 , and R 7 each independently represent a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, a carboxyl group, a sulfo group, a sulfamoyl group, an N-alkyl aminosulfonyl group, N-phenyl-aminosulfonyl group, a (C1-C4) alkylsulfonyl group which may be substituted with a hydroxyl group, a phospho group, a nitro group, an acyl group, a ureido group, a (C1-C4) alkyl group which may be substituted with a hydroxyl group or a (C1-C4) alkoxy group, a (C1-C4) alkoxy group in which the alkyl group may be substituted with a hydroxyl group, a (C1-C4) alkoxy group, a sulfo group or a carboxyl group, an acylamino group, an alkylsulfonylamino group or a phenyl-sulfonylamino group in which the phenyl group may be substituted with a halogen atom, an alkyl group or a nitro group, R 3 and R 4 each independently represent a hydrogen atom, a halogen atom, a cyano group, a carboxyl group, a sulfo group, a nitro group, a (C1-C4) alkyl group which may be substituted with a hydroxyl group or a (C1-C4) alkoxy group, a (C1-C4) alkoxy group in which the alkyl group may be substituted with a hydroxyl group, a (C1-C4) alkoxy group, a sulfo group or a carboxyl group, an acylamino group, an alkylsulfonylamino group or a phenylsulfonylamino group in which the phenyl group may be substituted with a halogen atom, an alkyl group or a nitro group, and n represents 0 or 1:

wherein, R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , and R 28 each independently represent a hydrogen atom; a halogen atom; a sulfo group; a carboxy group; a sulfamoyl group; a carbamoyl group; a (C1-C4) alkyl group; a (C1-C4) alkoxy group with; a (C1-C4) alkoxy group which is substituted with at least one group selected from a group consisting of a hydroxy

Assignees

• Seiko Epson Corp

Inventors

• Miyake Yuho
• Teramoto Ryosuke
• Ohori Hiromi
• Ishihara Daisuke
• Kanaya Miharu

Classifications

• C09D11/328 Primary

  characterised by dyes · CPC title

• C08K5/3492

  Triazines · CPC title

• C09B31/30

  Other polyazo dyes · CPC title

• C09B33/12

  in which the coupling component is a heterocyclic compound · CPC title

• C09B35/18

  from heterocyclic compounds · CPC title