Laser-marking laminated structure and laser-marked laminated structure

A laser-marking laminated structure consisting of:

• a support element;
• a base layer formed on one surface of the support element;
• a masking layer formed on an exposed surface of the base layer, and capable of being removed by irradiation with a laser beam;
• and
• an overprint varnish layer;
• wherein the base layer and the masking layer are colored layers having different colors that are distinctly different from each other in lightness,
• the base layer comprises a multilayer structure having an upper base layer and a lower base layer, the upper base layer having a laser light absorptive power higher than that of the lower base layer and the lower base layer being colored in a color lighter than that of the upper base layer, and
• the overprint varnish layer and the masking layer are capable of transmitting the radiated laser beam, and the base layer is capable of absorbing the radiated laser beam so that, when the base layer absorbs the laser beam, the upper base layer receiving the laser beam radiation is removed and the lower base layer is retained, and the area of the overprint varnish layer and masking layer corresponding to that of the upper base layer is removed.