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Active energy ray curable offset ink composition

An active energy ray and composition technology, applied in printing, ink, printing device and other directions, can solve the problems of inability to show, low migration performance, insufficient drying, etc., and achieve the effect of low toxicity

Inactive Publication Date: 2015-08-19
DAINIPPON INK & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for this technology, in offset printing, which requires much higher productivity than inkjet printing, the dryness is insufficient to exhibit sufficient low migration performance

Method used

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  • Active energy ray curable offset ink composition
  • Active energy ray curable offset ink composition
  • Active energy ray curable offset ink composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0044] Hereinafter, the present invention will be specifically described using examples.

[0045] [Manufacturing method of ink composition]

[0046] According to the compositions in Tables 1 to 3, the inks of Examples 1 to 13 and Comparative Examples 1 to 8 were ground with a three-roll mill to obtain various ultraviolet curable ink compositions.

[0047] It should be noted that in all examples, 16% by weight of carbon black as a color material was added (as carbon black, RAVEN 1060 Ultra was used in Examples 1 to 12, and RAVEN 1180 was used in Example 13) and 3% by weight of phthalocyanine blue and 2% by weight of dioxazine violet (21% by weight of color materials) as complementary color components, 2% by weight of talc and 2% by weight of magnesium carbonate as viscosity and flow modifiers (4% by weight in total) ), 2% by weight of wax as other auxiliary agents and stabilizer solution (the mixture of 10% by weight of p-methoxyphenol and 90% by weight of ethylene oxide modif...

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PUM

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Abstract

The present invention addresses the problem of providing an active energy ray curable offset ink composition which is more suitable for offset printing while also exhibiting favorable curability, and low toxicity and low migration properties for use as toy or food packaging. An active energy ray curable offset ink composition containing a coloring pigment, a photoinitiator composition (A), a photoinitiator composition (B), a tetrafunctional or higher polymerizable acrylate monomer, and a resin oligomer having a polymer group, the active energy ray curable offset ink composition being characterized in that (A) is an α-aminoalkylphenone photoinitiator having a number average molecular weight of 350-1000, inclusive, and (B) is an α-hydroxyketone photoinitiator having a number average molecular weight of 320-1000, inclusive.

Description

technical field [0001] The present invention relates to the invention of an active energy ray-curable offset printing ink, which has been considered to be low in toy and food packaging applications that are well cured under active energy ray conditions, and its printed matter. Toxicity, low migration and other safety. Background technique [0002] UV-curable offset printing inks that cure under active energy rays are widely used in the field of packaging and printing for food packaging such as toys and paper utensils due to the convenience of instant drying. [0003] UV-curable offset printing inks are widely used in food packaging such as snack boxes and beverage packs. However, in recent years, mainly in Europe and the United States, the problem of ink component migration (migration) to food packaging has been noticed and this trend It is expanding, and there is a strong desire to improve the safety of printing ink, which is one of the materials used to make printed matte...

Claims

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Application Information

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IPC IPC(8): C09D11/101B41M1/06
CPCC09D11/101C09D11/03
Inventor 余语梓奥田竜志若原圭佑南部智昭松尾育男山本誓
Owner DAINIPPON INK & CHEM INC
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