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Ink jet ink, ink jet recording method, and ink cartridge

An inkjet, unsaturated technology, applied in copying/marking methods, inks, printing, etc., can solve the problems that ink cannot provide coloring and bleeding resistance, and achieve the effect of excellent bleeding resistance and high coloring

Inactive Publication Date: 2010-05-26
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Inks using star polymers specifically described in Japanese Patent Application Laid-Open No. 2001-040256 do not provide sufficient colorability and sufficient bleeding resistance

Method used

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  • Ink jet ink, ink jet recording method, and ink cartridge
  • Ink jet ink, ink jet recording method, and ink cartridge
  • Ink jet ink, ink jet recording method, and ink cartridge

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Embodiment

[0087] Hereinafter, the present invention is described more specifically by way of Examples and Comparative Examples. It should be noted that in the following description, the terms "part" and "%" refer to "parts by mass" and "% by mass", respectively, unless otherwise specified.

[0088] MEK: methyl ethyl ketone

[0089] IPA: Isopropyl Alcohol

[0090] THF: Tetrahydrofuran

[0091] BzMA: benzyl methacrylate

[0092] BzMAm: N-Benzylmethacrylamide

[0093] nBA: n-butyl acrylate

[0094] nBMA: n-butyl methacrylate

[0095] tBMA: tert-butyl methacrylate

[0096] AA: Acrylic

[0097] St: Styrene

[0098] 2EHA: 2-Ethylhexyl Acrylate

[0099] HEA: 2-Hydroxyethyl Acrylate

[0100] MAA: methacrylic acid

[0101] EGDMA: Ethylene glycol dimethacrylate

[0102] P-1M: light ester P-1M (manufactured by KYOEISHA CHEMICAL Co., LTD.)

[0103] SA: NK ester SA (manufactured by Shin-nakamura Chemical Corporation)

[0104] DPMP: dipentaerythritol hexa(3-mercaptopropionate) (molecula...

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Abstract

Provided is an ink jet ink capable of achieving both high colorability and excellent bleeding resistance of an image. The ink jet ink includes at least a pigment and a star polymer in which at least three copolymer chains of +-,-ethylenically unsaturated monomers are bonded to a central skeleton, in which the copolymer chains of the +-,-ethylenically unsaturated monomers are copolymers of at least one first monomer selected from the group consisting of aromatic (meth)acrylates and aromatic (meth)acrylamides and at least one second monomer selected from the group consisting of acid monomers and salts of the acid monomers.

Description

technical field [0001] The present invention relates to an inkjet ink, an inkjet recording method, and an ink cartridge. Background technique [0002] Conventionally, dyes capable of dissolving in aqueous media in inks used in inkjet recording have been mainly used as coloring materials in inks; The study of pigments. In addition, studies have been conducted on the use of various polymers used as dispersants for dispersing pigments and additives for improving scratch resistance or marking resistance. [0003] In each of Japanese Patent Application Laid-Open No. 2000-169771 and Japanese Patent Application Laid-Open No. 2001-040256, inkjet inks containing a polymer having a star structure (star polymer) are proposed. [0004] However, there has so far been no inkjet ink having the characteristics that the ink is an aqueous ink containing an aqueous medium, uses a star polymer as a dispersing polymer for a pigment, and can provide inkjet inks having high colorability and exce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10B41J2/01B41J2/175B41M5/00C09D11/00C09D11/30C09D11/54
CPCC09D11/326
Inventor 西口宪治林克洋
Owner CANON KK
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