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Ink composition for UV curing ink-jet recording

An ink composition, ink jet recording technology, applied in the directions of inks, applications, household appliances, etc., can solve the problems that the dispersion and re-dispersion of titanium oxide cannot be said to be sufficient, and the ejection stability is insufficient, and achieves ejection. Excellent stability, excellent redispersibility and concealment, and excellent concealment

Inactive Publication Date: 2004-05-12
DAINIPPON INK & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently, in the ultraviolet curable inkjet recording ink composition using titanium oxide as a colorant, the dispersion and redispersion properties of these titanium oxides cannot be said to be necessarily sufficient, and the ejection stability is not sufficient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] 5.0 parts of polyurethane acrylate, 10.0 parts of trimethylolpropane triacrylate added to ethylene oxide, and 1,6-hexanediol diacrylic acid added to 33.0 parts of ethylene oxide in the synthesis example Esters, 12.0 parts of 3-methoxybutyl acrylate, 0.1 parts of DC57 additive (polyether-modified silicone oil manufactured by Douconing), 3.0 parts of Irgakyua 819 (manufactured by Ciba Specialty Chemicals) as a photopolymerization initiator, 3.0 parts of Lusilin TPO (manufactured by BASF), add 40 parts of the grinding material of preparation example 1 to the solution after heating and dissolving the photopolymerization initiator at 60°C, mix well, and then filter with a 4.5 micron membrane filter to make an inkjet printer used ink.

Embodiment 2

[0072] Using the abrasive of Preparation Example 2 instead of the abrasive of Preparation Example 1 used in Example 1, an ink for an inkjet printer was prepared in the same manner as in Example 1.

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PUM

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Abstract

An ultraviolet-curable white ink composition for ink jet recording is provided which has good dispersibility and good redispersibility and has excellent ejection stability, and provides excellent visibility of printed matter having a base material which forms a black or dark background. In an ultraviolet-curable ink composition for ink jet recording comprising titanium oxide, a polymeric dispersant having a basic functional group, a photopolymerizable compound and a photopolymerization initiator, the titanium oxide is surface-treated with silica and alumina and the weight of the silica, which coexists with the titanium oxide, is larger than that of the alumina.

Description

technical field [0001] The present invention relates to an ultraviolet curable ink composition for inkjet recording. More specifically, it relates to an ultraviolet curable ink composition using titanium oxide as a colorant, which provides excellent ejection stability and excellent visibility of printed matter on non-black dark tone substrates. Ink composition for inkjet recording. Background technique [0002] Printing with an inkjet recording device is a method in which ink is ejected through a nozzle and attached to the material to be recorded. Since the nozzle is in a non-contact state with the material to be recorded, good printing can be performed on surfaces with curved surfaces and irregular shapes. . Therefore, it is a printing method expected to be used in a wide range of industrial applications. [0003] As for the ink used in the inkjet recording method, there are water-based inks using water as the main solvent in the dye ink as the colorant, and oil-based ink...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41M5/00C09D11/00C09D11/322C09D11/326C09D11/38
CPCC09D11/36C09D11/101
Inventor 山田丰山口尚男尾岛治
Owner DAINIPPON INK & CHEM INC