摘要 |
PROBLEM TO BE SOLVED: To provide a light irradiation apparatus and a printing apparatus that can achieve high adhesion between a UV curable ink and an object, irrespective of the use environment of the UV light irradiation apparatus, the temperature of the UV curable ink, the UV curable ink, types of the object on which the UV curable ink is landed, and the moving speed of the object.SOLUTION: The light irradiation apparatus 1 includes: a light irradiation device 2 having light emitting elements 20 provided on one principal surface 11a of a substrate 10; a heat storage part 3 provided in a vicinity other than the light irradiation part of the light irradiation device 20, and configured to store heat generated by the light irradiation device 20; and a heat transfer part 4 configured to transfer the heat stored by the heat storage part 3 to the object 5 on which the UV curable ink 6 has not been landed yet. High adhesion between the object 5 and the UV curable ink 6 can be achieved by heating the object 5 and increasing the surface free energies of the object 5 and the UV curable ink 6. |