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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 high viscosity, low viscosity of destructive acrylate, etc.

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

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Problems solved by technology

However, the viscosity of such aromatic monomers is relatively high, which may impair the advantage of lowering the viscosity of (meth)acrylates containing vinyl ether groups.

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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Effect test

Embodiment

[0119] Hereinafter, the present invention will be described more concretely using examples and comparative examples. The present invention is not limited by the following examples.

[0120] 1. Preparation of Inkjet Composition

[0121] 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, put the remaining monomer, photopolymerization initiator and polymerization inhibitor into a tank for a mixture as a stainless steel container according to the components listed in Table 1, and mix and stir to dissolve it completely, and then , the above-obtained pigment dispersion liquid was added, further mixed and stirred at room temperature for 1 hour, and further filtered using a 5 μm membrane filter, thereby obtaining the rad...

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Abstract

The purpose of the present application is to provide: a radiation curable inkjet composition having a low viscosity and a high degree of freedom in monomer design; and an inkjet method. The radiation curable ink jet composition includes polymerizable compounds; and a photopolymerization initiator, the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by the following general formula (I), a content of the vinyl ether group-containing (meth)acrylate with respect to a total mass of the radiation curable inkjet composition is 15 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate. H2C=CR<1>-CO-OR<2>-O-CH=CH-R<3>(I)In the above formula, R<1> represents a hydrogen atom or a methyl group, R<2> represents a divalent organic residue having 2 to 20 carbon atoms, and R<3> represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms.

Description

technical field [0001] The invention relates to an 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 Unexamined Paten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30B41M5/00B41M7/00
CPCC09D11/30B41M5/0047B41M5/0064B41M5/007B41M5/0076B41M5/0058B41M7/0081C09D11/101C09D11/38C09D11/322B41J11/0021B41M5/0023C09D11/107
Inventor 中村洁斋藤彻馀田敏行小池直树
Owner SEIKO EPSON CORP
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