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Ink composition, ink cartridge, inkjet recording method, and recorded matter

An ink composition and aromatic compound technology, applied in the ink composition, the number of carbon atoms is 1, the field of hydrogen atoms, can solve the problem of reduced ozone resistance, and achieve the effect of improving indoor storage.

Inactive Publication Date: 2010-06-16
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even at this time, when the amount of the aromatic sulfonate contained in the ink is small, the coppery floating phenomenon is not seen, but there is a problem that the ozone resistance decreases as the amount of the additive decreases.

Method used

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  • Ink composition, ink cartridge, inkjet recording method, and recorded matter
  • Ink composition, ink cartridge, inkjet recording method, and recorded matter
  • Ink composition, ink cartridge, inkjet recording method, and recorded matter

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0054] The ink composition according to the first embodiment of the present invention is characterized in that it contains at least water, a phthalocyanine-based cyan dye, and lithium of an aromatic compound having a sulfo group represented by the following general formulas (1) and / or (2). salt.

[0055]

[0056] (In the formula, X represents an integer greater than 1, and R 1 and R 2 represent a hydrogen atom, an alkyl group with 1 to 6 carbon atoms or an alkoxy group with 1 to 6 carbon atoms, R 1 and R 2 Can be the same or different. )

[0057]

[0058] (In the formula, Y represents an integer greater than 1, and R 3 and R 4 represent a hydrogen atom, an alkyl group with 1 to 6 carbon atoms or an alkoxy group with 1 to 6 carbon atoms, R 3 and R 4 Can be the same or different. )

[0059] The ink composition according to the first embodiment is composed of this constitution, so that it is possible to effectively prevent early fading of cyan images without causi...

no. 2 Embodiment approach

[0096] The ink composition according to the second embodiment of the present invention is characterized in that it contains at least water, a phthalocyanine-based cyan dye, and an aromatic compound having a sulfo group represented by the following general formulas (5) and / or (6) and / or or its salt.

[0097]

[0098] (where, M 1 Represents a hydrogen atom or a counter ion constituting a salt, X represents an integer greater than 3, R 1 and R 2 represent a hydrogen atom, an alkyl group with 1 to 6 carbon atoms or an alkoxy group with 1 to 6 carbon atoms, R 1 and R 2 Can be the same or different. )

[0099]

[0100] (where, M 2 Represents a hydrogen atom or a counter ion constituting a salt, Y represents an integer greater than 3, R 3 and R 4 represent a hydrogen atom, an alkyl group with 1 to 6 carbon atoms or an alkoxy group with 1 to 6 carbon atoms, R 3 and R 4 Can be the same or different. )

[0101] The ink composition of the second embodiment is composed o...

no. 3 Embodiment approach

[0115] The ink composition according to the third embodiment of the present invention is characterized in that it contains at least water, a phthalocyanine-based cyan dye, and lithium of an aromatic compound having a sulfo group represented by the following general formulas (1) and / or (2). salt, and the aforementioned phthalocyanine-based cyan dye is a phthalocyanine-based cyan dye represented by the following formula (3).

[0116]

[0117] (In the formula, X represents an integer greater than 1, and R 1 and R 2 represent a hydrogen atom, an alkyl group with 1 to 6 carbon atoms or an alkoxy group with 1 to 6 carbon atoms, R 1 and R 2 Can be the same or different. )

[0118]

[0119] (In the formula, Y represents an integer greater than 1, and R 3 and R 4 represent a hydrogen atom, an alkyl group with 1 to 6 carbon atoms or an alkoxy group with 1 to 6 carbon atoms, R 3 and R 4 Can be the same or different. )

[0120]

[0121] (where, X 1 、X 2 、X 3 and x 4...

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PUM

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Abstract

It is an object of the present invention to provide an ink composition with which the indoor storage stability (gas resistance) of an image produced with an ink composition featuring a phthalocyanine-based cyan dye can be increased without causing any additive precipitation or bronzing. The present invention provides an ink composition containing at least water, a phthalocyanine-based cyan dye, and a lithium salt of an aromatic compound having a sulfo group and expressed by General Formulas 1 and / or 2 in the claims. The present invention also provides an ink composition containing at least water, a phthalocyanine-based cyan dye, and a lithium salt of an aromatic compound having a sulfo group and expressed by General Formulas 5 and / or 6 in the claims. The present invention further providesan ink composition containing at least water, a phthalocyanine-based cyan dye, and a lithium salt of an aromatic compound having a sulfo group and expressed by General Formulas 1 and / or 2 in the claims or a lithium salt of an aromatic compound having a sulfo group and expressed by General Formulas 5 and / or 6 in the claims, wherein the phthalocyanine-based cyan dye is expressed by Formula 3 in theclaims.

Description

Background technique [0001] The present invention relates to an ink composition capable of improving the indoor storage property (gas resistance) of the produced image, and more particularly relates to an ink composition containing a phthalocyanine-based cyan dye capable of effectively preventing image discoloration and fading. [0002] Conventionally, an ink composition using a phthalocyanine-based cyan dye has been widely used as an excellent ink composition for developing an image such as cyan. Recently, it is more popular to use the ink composition that makes this image color and one or two or more ink compositions that are used to make other colors to form an image, and the obtained image ( color image) displayed indoors, etc. [0003] However, in such ink compositions using phthalocyanine-based cyan dyes, the phthalocyanine-based cyan dyes have poor resistance to oxidizing gases such as ozone, nitrogen oxides, and sulfur oxides present in the air, especially poor ozone ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L25/00B41J2/01C09D11/02
CPCC09D11/328
Inventor 黄木康弘北村和彥
Owner SEIKO EPSON CORP