CPC G02B 5/124 (2013.01) [B32B 27/08 (2013.01)] | 16 Claims |
1. A method for manufacturing a retroreflective sheet, provided with a retroreflective layer having a plurality of retroreflective elements on one surface, a back face layer provided to face a plurality of the retroreflective elements, and a coupling portion configured (i) to couple a part of a plurality of the retroreflective elements and a part of a one side surface of the back face layer and (ii) not to couple the other part of a plurality of the retroreflective elements and the other part of the one side surface of the back face layer, the method comprising:
a preparation step of preparing a resin composition that has a viscosity capable of adhering over a predetermined time after application of predetermined energy, and completes curing after the predetermined time passes;
a coating step of applying the resin composition forming the coupling portion on the retroreflective layer or the back face layer;
an energy application step of applying the predetermined energy to the resin composition; and
a bonding step of bonding the retroreflective layer and the back face layer via the resin composition to which the predetermined energy is applied before the predetermined time passes.
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