Actinic energy radiation curable ink-jet ink, ink-jet recording method, and printed matter
The present invention provides an actinic energy radiation curable ink-jet ink exhibiting excellent ink storage stability, nozzle ink repellency, and ejection stability, and also exhibiting excellent curability, anti-abrasion properties, solvent resistance, flexibility, weather resistance, and substrate adhesion properties even under various ambience factors and irradiation conditions, as well as an ink-jet recording method and printed matter using the same. In an actinic energy radiation curable ink-jet ink containing a cationically polymerizable compound and a photo-cationic polymerization initiator, an actinic energy radiation curable ink-jet ink wherein a cationically polymerizable compound having a vinyl ether group as a reactive group is contained at 50.0% by mass or more and the halogen ion content is 1.0 μg/g of the ink-100 μg/g of the ink.
1. An actinic energy radiation curable ink-jet ink comprising:
a cationically polymerizable compound having a vinyl ether group in an amount of 50.0% or more by ink mass;
a photo-cationic polymerization initiator having a thermally acid generating amount of 1×10 −4 mol/L or less; and
a halogen ion in an amount of 1.0 μg/g ink to 100 μg/g ink.
2. The actinic energy radiation curable ink-jet ink of claim 1 , wherein the content of the halogen ion is 1.0 μg/g ink or more and 40 μg/g ink or less.
3. The actinic energy radiation curable ink-jet ink of claim 1 , wherein the content of the halogen ion is 1.0 μg/g ink or more and 10 μg/g ink or less.
4. The actinic energy radiation curable ink-jet ink of claim 1 , wherein the content of the cationically polymerizable compound having a vinyl ether group as a reactive group is 80.0 or more by mass.
5. The actinic energy radiation curable ink-jet ink of claim 1 comprising a radical polymerization inhibitor.
6. The actinic energy radiation curable ink-jet ink of claim 1 , wherein a viscosity of the ink is not less than 2 and not more than 50 mPa·s at 25° C.
7. The actinic energy radiation curable ink-jet ink of claim 1 , wherein a surface tension of the ink is not less than 22 and not more than 35 mN/m at 25° C.
8. The actinic energy radiation curable ink-jet ink of claim 1 , wherein the photolytically acid generating agent has a purity of at least 80%.
9. A method for an inkjet recording comprising steps of:
jetting the actinic energy radiation curable ink-jet ink of claim 1 from an inkjet nozzle on a recording media; and
curing the actinic energy radiation curable ink-jet ink by irradiating the actinic energy ray.
10. The method of claim 9 , wherein droplet amount of the ink ejected from each nozzle is 2-20 pl.
11. The method of claim 9 wherein the curing step comprises irradiating actinic energy radiation 0.001-2.0 seconds after ink deposition on the recording media and after completion of entire ink-jet recording, further irradiating actinic energy radiation to the deposited ink.
12. A printed matter recorded by the method for the inkjet recording of claim 9 .