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Radiation Curable Ink Jet Composition And Ink Jet Method

A curing type, radiation technology, applied in the direction of copying/marking method, ink, printing, etc., can solve the problems of difficult realization of monomer components, ink component restrictions, narrowing of options, etc.

Pending Publication Date: 2021-09-28
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, if a large amount of aromatic monomers such as phenoxyethyl acrylate is used in order to ensure the solubility of the photopolymerization initiator, the choice of other polymerizable monomers will be narrowed, and the ink components will be limited. such problem
Therefore, in signage applications, etc., where problems such as cracks and chips in the ink coating film occur during post-processing such as cutting and bending, it is difficult to achieve the desired physical properties of the ink coating film for solving these problems. The monomer component needed for this kind of problem

Method used

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  • Radiation Curable Ink Jet Composition And Ink Jet Method
  • Radiation Curable Ink Jet Composition And Ink Jet Method

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Embodiment

[0143] Hereinafter, the present invention will be described more concretely using examples. The present invention is not limited by the following examples.

[0144] 1. Preparation of Radiation Curable Inkjet Composition

[0145] First, weigh a color material, a dispersant, and a part of each monomer, and put it into a tank for pigment dispersion. Ceramic grinding beads with a diameter of 1 mm are placed in the tank and stirred, thereby obtaining the monomer in the monomer. Pigment dispersion for dispersing colored materials in medium. Next, in accordance with the components listed in Table 1, the remaining monomers, polymerization initiators, and polymerization inhibitors were placed in a stainless steel container for a mixture, and mixed and stirred to completely dissolve them. After that, The above-obtained pigment dispersion liquid was charged, further mixed and stirred at room temperature for 1 hour, and further filtered using a 5 μm membrane filter to obtain the radiati...

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Abstract

Provided are: a radiation curable ink jet composition which is capable of obtaining a coating film having low viscosity and excellent adhesion; and an ink jet method. The radiation curable ink jet composition includes polymerizable compounds and a photopolymerization initiator, the polymerizable compounds include a monofunctional monomer, a content of the monofunctional monomer with respect to a total mass of the polymerizable compounds is 90 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate.

Description

technical field [0001] The invention relates to a radiation curable inkjet composition and an inkjet method. Background technique [0002] The inkjet recording method is capable of recording high-definition images with a relatively simple device, and has achieved rapid development in various aspects. Among them, various studies have been conducted on the curability of coating films of inkjet compositions cured by irradiation with radiation, and the like. For example, in Patent Document 1, for the purpose of providing an ultraviolet curable inkjet ink composition having excellent curability in both a thin film cured film and a thick film cured film, an ultraviolet curable ink composition is disclosed. An inkjet composition comprising: a vinyl ether group-containing (meth)acrylate; a monofunctional (meth)acrylate having an aromatic ring skeleton; and a photopolymerizable initiator. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30B41J2/01B41M5/00B41M7/00
CPCC09D11/30B41M5/00B41M7/0081B41J2/01C09D11/101C09D11/38C09D11/107B41M5/0023B41J11/002C09D11/102B41J2/2107
Inventor 小池直树斋藤彻田中恭平中村洁
Owner SEIKO EPSON CORP
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