Active energy ray-curable ink-jet ink

A technology of active energy rays and inkjet inks, applied in inks, printing, copying/marking methods, etc., can solve the problems of inaccessibility, large extension processability, etc.

Active Publication Date: 2008-11-12
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In JP-A-6-184484, post-processing properties are imparted by the flexibility and adhesiveness of urethane, but as a result of compounding a large amount of difunctional monomers, it is possible to cope with slight stretching, but the present invention cannot be obtained. Large elongation workability to the extent described in

Method used

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  • Active energy ray-curable ink-jet ink
  • Active energy ray-curable ink-jet ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Add the ingredients in Table 1 sequentially from the top of the table while stirring. After stirring for 2 hours, it was confirmed that there was no dissolved residue, and the mixture was filtered with a membrane filter to remove coarse particles causing clogging of the inkjet head to prepare an ink. The ink was dispensed onto a polyethylene plate by an inkjet dispenser. Immediately after the ink was discharged, the 120W / cm high-pressure mercury lamp manufactured by Harrison Toshiba Lighting Co., Ltd. was used for ultraviolet curing at a conveying speed of 5m / min, an irradiation distance of 10cm, and 1Pass to obtain a coating film. After 24 hours, the coating film was slowly peeled off from the polyethylene plate, and the dynamic viscoelasticity was measured. In addition, in order to measure the Ra value, the ink was discharged onto a polycarbonate plate, and one minute after the ink was discharged, the polycarbonate plate was washed with isopropyl alcohol to remove th...

Embodiment 2～5

[0095] In the same manner as in Example 1, inks were prepared according to the description in Table 1, and printed and cured.

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Abstract

The present invention relates to an active energy beam-curable inkjet ink comprising a polymerizable monomer, wherein when a cured film obtained upon curing the ink is measured under conditions including an oscillation frequency of 1 Hz, the loss tangent (tan delta) at the glass transition temperature is 2 or greater.

Description

technical field [0001] The present invention relates to an active energy ray-curable inkjet ink excellent in adhesiveness and flexibility. Background technique [0002] In the past, active energy ray-curable inks have been supplied and used in offset printing, screen printing, surface coating agents, etc., but due to the advantages of cost reduction due to the simplification of the drying process, and the reduction of solvent evaporation as an environmental protection measure, they have been used in recent years. volume is increasing. Among them, water-based and solvent-based inks are mostly used as inkjet inks. Although they are used separately according to their respective characteristics, they have limited acceptance of substrates for industrial use, relatively poor water resistance, high drying energy of ink, and ink components adhere to ink due to drying. There are problems such as inkjet heads, so it is expected to replace it with active energy ray-curable inks with r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/00B41J2/01B41M5/00
CPCY10T428/24802B41M7/0081C09D11/101B41M7/0072B41M5/00B41J2/01
Inventor 高桥征寿城内一博吉广泰男
Owner TOYO INK SC HOLD CO LTD
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