Ink jet recording method, ultraviolet curable ink, and ink jet recording apparatus
Provided is an ink jet recording method including: discharging first ultraviolet curable ink of a radical polymerization reaction type which contains a radical photopolymerization initiator and a radical polymerization compound and in which transmittance at a wavelength of 395 nm is equal to or less than 1 %, onto a recording medium; and curing the first ultraviolet curable ink which is landed on the recording medium by irradiating the ink with ultraviolet light, in which a light source which initially emits the ultraviolet light in the curing of the ink is an ultraviolet light emitting diode in which peak intensity of the irradiated ultraviolet light is equal to or more than 800 mW/cm 2 .
1. An ink jet recording method comprising:
discharging ultraviolet curable ink containing vinyl ether group-containing (meth) acrylate esters expressed by the following General Formula (I) onto a recording medium; and
preliminarily curing the ultraviolet curable ink by irradiating the ink with ultraviolet light in which an irradiation energy is equal to or less than 50 mJ/cm 2 from an ultraviolet light emitting diode generating ultraviolet light in which a light emitting peak wavelength is in a range of 360 nm to 420 nm and peak intensity of the irradiated ultraviolet light is less than 800 mW/cm 2 ,
before curing the ultraviolet curable ink which is landed on the recording medium by irradiating the ink with ultraviolet light from an ultraviolet light enmitting diode in which peak intensity of the irradiated ultraviolet light is equal to or more than 800 mW/cm 2 and equal to or less than 2000 mW/cm 2 ;
CH 2 =CR 1 —COOR 2 —O—CH═CH—R 3 (I)
(in the 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).
2. The ink jet recording method according to claim 1 ,
wherein an irradiation energy of ultraviolet light emitted from the ultraviolet light emitting diode is 100 mJ/cm2 to 600 mJ/cm 2 .
3. The ink jet recording method according to claim 1 , further comprising
recording using a line ink jet recording apparatus including a line head having a length equal to or greater than a length corresponding to a width of a recording medium.
4. The ink jet recording method according to claim 1 ,
wherein the irradiation from the ultraviolet light emitting diode is at least any of pulse irradiation and spot irradiation by a condensing lens individually.
5. The ink jet recording method according to claim 1 ,
wherein the ultraviolet light emitting diode has a light emitting peak wavelength in a range of 360 nm to 420 nm.
6. Ultraviolet curable ink used for the ink jet recording method according to claim 1 .
7. An ink jet recording apparatus which is used with the ink jet recording method according to claim 1 .