IP Library › Granted Patent US 9,827,788
Granted Patent B2
US 9,827,788 · App. 14/920,966 · Granted Nov 28, 2017

Ink jet recording method and ink jet recording apparatus

Inventors: Hiroshi Fukumoto (Suwa, JP); Hiroaki Kida (Suwa, JP)
Assignee: Seiko Epson Corporation
B41J11/002B41J2/0057B41J2/01B41J2/2107C09D11/101C09D11/30
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Quick Facts
Patent No.
US 9,827,788
App. No.
14/920,966
Granted
Nov 28, 2017
Kind
B2
Abstract

Provided is an ink jet recording method including: discharging an ultraviolet ray-curable ink, which has a viscosity at 20° C. of 25 mPa·s or less and an average equivalent of polymerizable unsaturated double bond of 100 to 150, from a head onto a recording medium at a discharge temperature of 30° C. to 40° C.; and irradiating the ultraviolet ray-curable ink, attached onto the recording medium, with ultraviolet rays emitted from a light source to cure the ultraviolet ray-curable ink.

Claims (36)

1. An ink jet recording method comprising:

discharging an ultraviolet ray-curable ink, which has a viscosity at 20° C. of 25 mPa·s or less and an average equivalent of polymerizable unsaturated double bond of 100 to 150, from a head onto a recording medium at a discharge temperature of 30° C. to 40° C.;

preliminarily curing the ultraviolet ray-curable ink; and

irradiating the ultraviolet ray-curable ink, attached onto the recording medium, with ultraviolet rays emitted from a light source to cure the ultraviolet ray-curable ink,

wherein the light source is a light emitting diode having an irradiation peak intensity that is greater than or equal to 500 mW/cm 2 and the preliminary curing is done before the irradiating.

2. The ink jet recording method according to claim 1 ,

wherein the head is a line head having a length longer than or equal to a width of the recording medium, and recording is performed using a line type ink jet recording apparatus that discharges the ultraviolet ray curable ink from the line head onto the recording medium which is scanned relative to the line head.

3. The ink jet recording method according to claim 1 ,

wherein a support has a surface on which the recording medium is transported, supports the recording medium, and moves relative to the head, and a time period in which the support moves relative to the head from a position and returns to the position is longer than or equal to 5 seconds.

4. The ink jet recording method according to claim 3 ,

wherein a material of the support for the recording medium is a metal.

5. The ink jet recording method according to claim 1 ,

wherein a viscosity at 20° C. of the ultraviolet ray-curable ink is 15 mPa·s to 25 mPa·s.

6. The ink jet recording method according to claim 1 ,

wherein the ultraviolet ray-curable ink contains 30% by mass to 70% by mass of monofunctional (meth)acrylate and 20% by mass to 60% by mass of bifunctional or higher polyfunctional (meth)acrylate.

7. The ink jet recording method according to claim 1 ,

wherein the ultraviolet ray-curable ink is curable by irradiation of ultraviolet rays having an irradiation energy of 200 mJ/cm2 or lower.

8. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 1 .

9. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 2 .

10. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 3 .

11. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 4 .

12. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 5 .

13. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 6 .

14. An ink jet recording apparatus which performs recording using the ink jet recording method according to claim 7 .

15. The ink jet recording method according to claim 1 ,

wherein the light source is a light emitting diode having an irradiation peak intensity that is greater than or equal to 800 mW/cm 2 .

16. The ink jet recording method according to claim 1 ,

wherein the light source is a light emitting diode having an irradiation peak intensity that is greater than or equal to 1000 mW/cm 2 .

17. An ink jet recording method comprising:

discharging an ultraviolet ray-curable ink, which has a viscosity at 20° C. of 25 mPa·s or less and an average equivalent of polymerizable unsaturated double bond of 100 to 150, from a head onto a recording medium at a discharge temperature of 30° C. to 40° C.; and

irradiating the ultraviolet ray-curable ink, attached onto the recording medium, with ultraviolet rays emitted from a light source to cure the ultraviolet ray-curable ink,

wherein the light source is a light emitting diode having an irradiation peak intensity that is greater than or equal to 500 mW/cm 2 and less than or equal to 1500 mW/cm 2 .

18. The ink jet recording method according to claim 17 ,

wherein the light source is a light emitting diode having an irradiation peak intensity that is greater than or equal to 1000 mW/cm 2 and less than or equal to 1500 mW/cm 2 .

19. The ink jet recording method according to claim 18 ,

wherein the light source is a light emitting diode having an irradiation peak intensity that is greater than or equal to 800 mW/cm 2 and less than or equal to 1500 mW/cm 2 .

Priority Claims (2)
JP 2012-102535 · Apr 27, 2012 · national
JP 2012-250029 · Nov 14, 2012 · national
Continuity (2)
Continuation 13853185 · Mar 29, 2013
Related Publication 20160046134A1 · Feb 18, 2016