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Ink composition for ink jet recording

A technology of inkjet recording and composition, applied in the field of ink composition for inkjet recording, capable of solving the problems of insufficient ink ejection stability or blockage recovery, insufficient ink storage stability, and desorption, etc. Achieves excellent color rendering or fixability, excellent ejection stability or clogging recovery

Active Publication Date: 2010-11-10
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the ink to which the pigment dispersant is added, when the above-mentioned surfactant or glycol ethers are present in the ink, sometimes the dispersion resin is easily adsorbed / desorbed by the pigment, and the storage stability of the ink is reduced. insufficient
In addition, when the dispersant detaches from the pigment and remains in the ink, the viscosity of the ink may increase, resulting in insufficient ejection stability or clogging recovery of the ink.

Method used

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  • Ink composition for ink jet recording
  • Ink composition for ink jet recording
  • Ink composition for ink jet recording

Examples

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Embodiment

[0068] Hereinafter, the present invention will be described in further detail using examples, but the present invention is not limited by these examples.

[0069]

[0070] Emulsion A

[0071] In the reaction vessel equipped with dropping device, thermometer, water-cooled co-current condenser, and stirrer, add 100 parts of ion-exchanged water, add 0.2 parts of polymerization initiator potassium persulfate at 70°C under nitrogen atmosphere while stirring, and Add 0.05 parts of sodium lauryl sulfate, 30 parts of ethyl acrylate, 8 parts of butyl acrylate, 5 parts of styrene and 0.02 parts of tert-dodecyl mercaptan into 7 parts of ion-exchanged water dropwise at 70 ° C. The solution was reacted to produce Class 1 material. Add 2 parts of ammonium persulfate 10% solution to the first-grade material and stir, and then add 30 parts of ion-exchanged water, 0.2 parts of potassium lauryl sulfate, 40 parts of ethyl acrylate, and 5 parts of butyl acrylate while stirring at 70°C. ester...

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PUM

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Abstract

The present invention provides an ink composition for ink jet recording, having excellient color rendering property and coating property, excellient jet stability and jam recovering property. The ink composition comprises a dispersoid comprising a water-dispersible a pigment and polymer microparticles, wherein the average particle diameter of the dispersoid is 20 to 300 nm, wherein the polymer microparticles comprise a copolymer comprising (i) at least 70% by weight of alkyl (meth) acrylate repeating units including (ia) ethyl acrylate repeating units and / or cyclic alkyl (meth) acrylate repeating units, and (ib) (meth) acrylic acid repeating units, and (ii) repeating units of an ethylene based unsaturated monomer having a saturated or an unsaturated ring, and wherein the glass transition temperature of the polymer microparticles is 0 DEG C or less and the acid value thereof is 50 mgKOH / g or less.

Description

technical field [0001] The present invention relates to an inkjet recording ink composition, and more specifically, to an inkjet recording ink for textiles that is excellent in color development and fixability, ejection stability or An ink composition for inkjet recording that is also excellent in clogging recovery properties. Background technique [0002] Pigments are generally used as colorants for inkjet recording inks because they are excellent in fastness such as water resistance and light resistance. Due to the poor solubility of pigments in water, dispersants such as surfactants or polymers are usually added to the ink to improve the dispersion stability of the pigments. As a dispersant, a resin having both a hydrophobic portion and a hydrophilic portion, such as a styrene-acrylic copolymer resin, is generally used. [0003] However, for the ink used for inkjet recording, it is required to have various characteristics such as no bleeding, good drying, uniform printi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10D06P1/52D06P5/00B41J2/01B41M5/00C09B67/20C09B67/46C09D11/00C09D11/322C09D11/324C09D11/326C09D11/38D06P1/44
CPCC09D11/326
Inventor 黄木康弘矢竹正弘长濑真增田基城
Owner SEIKO EPSON CORP
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