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Photocurable ink composition for ink-jet printing

An ink composition and inkjet printing technology, applied in the directions of inks, applications, household appliances, etc., can solve the problems of bending resistance and other problems, and achieve the effect of high production efficiency and sufficient adhesion

Active Publication Date: 2018-10-23
SAKATA INX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Higher performance is required in recent years, curability, viscosity, and adhesion are good, but there are problems in bending resistance

Method used

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  • Photocurable ink composition for ink-jet printing
  • Photocurable ink composition for ink-jet printing

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] (Preparation method of ink composition)

[0065] The method for preparing the photocurable inkjet printing ink composition of the present invention is not particularly limited, and it can be prepared by adding all the above-mentioned materials and mixing them with a bead mill, a three-axis roll mill, or the like. And when using a pigment, it is also possible to obtain a concentrated base (conc.base) ink in advance by mixing the pigment, the above-mentioned pigment dispersant, and the above-mentioned photopolymerizable compound, and then add the remaining components of the above-mentioned components to make it a desired one. Composition to prepare.

[0066] (production of printed matter)

[0067] Next, a printing method using the photocurable inkjet printing ink composition of the present invention will be described.

[0068] As the substrate to be printed using the photocurable ink composition for inkjet printing of the present invention, any conventionally known ultr...

Embodiment 1～9 and comparative example 1～5

[0099] Preparation of Ink Composition for Photocurable Inkjet Printing

[0100] (Black ink composition)

[0101] Pigment (Pigment Black 7), pigment dispersant (AJISPERPB 821, manufactured by Ajinomoto Fine Techno Co., Ltd.) and photopolymerizable component (benzyl acrylate) were prepared so that the mixing ratio (mass ratio) was 20 / 8 / 72 The blended mixture was dispersed using an Eiger mill (zirconia beads with a diameter of 0.5 mm were used as a medium) to obtain a concentrated base. In the obtained concentrated base, each component was blended so as to have the blending composition (mass %) in Table 1, and stirred and mixed to obtain photocurable inkjet printing of Examples 1 to 5 and Comparative Examples 1 to 5. Composition with black ink.

[0102] (yellow ink composition)

[0103] Pigment (pigment yellow 150), pigment dispersant (Solsperse 56000, manufactured by Japan Lubrizol Co., Ltd.) and photopolymerizable component (benzyl acrylate) were mixed in such a way that the...

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Abstract

The present invention addresses the problem of providing a photocurable ink composition for ink-jet printing which not only has excellent ejection stability but also is excellent in terms of curability, adhesion, and scratch resistance even when cured by ultraviolet irradiation with a small integrated quantity of light energy and which gives a coating film that is less tacky, has excellent stretchability, and suffers no cracks through post-processing. The above-mentioned problem is solved with a photocurable ink composition for ink-jet printing which contains photopolymerizable compounds and aphotopolymerization initiator. The ink composition contains a. 5.0-50 mass% acrylamide-based monomer, b. 15-70 mass% monofunctional monomer which is not an acrylamide-based monomer, c. 5.0-30.0 mass%polymerizable compound having a functionality of 2 or higher, and d. 0.1-15 mass vinylcaprolactam and / or 0-10 mass% acrylated amine compound having two photopolymerizable functional groups and two amino groups in the molecule, e. the proportion of the monofunctional monomers in the photopolymerizable compounds being 60-99.5 mass%.

Description

technical field [0001] The present invention relates to a photocurable inkjet inkjet that is excellent in storage stability and has good printing suitability such as permeability and high color gamut even when printed on absorbent media such as plain paper and low-absorbency media such as coated offset paper. with ink composition. Background technique [0002] Due to the excellent properties of light-curable inks such as fast drying, no volatile solvents, no volatile harmful components to the environment, and printing on various substrates, it is not only suitable for lithography, gravure printing, screen printing, letterpress printing, etc. In addition, it can be used in a wide range of fields such as various coatings and inkjet printing. [0003] In particular, since inkjet printing can easily and inexpensively produce images regardless of the material and shape of the substrate, it can be applied to general printing of logos, graphics, photographic images, etc., to marki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30
CPCC09D11/30C09D11/101C09D11/32C09D11/38C09D11/037C09D11/106C09D11/107
Inventor 中岛兴范明濑拓哉冈本拓也福家和弘
Owner SAKATA INX
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