Laser-personalizable security articles

A laser-personalized multi-layer security document comprising:

• an optically transparent cover layer with a first surface, a second surface, and a thickness between the first surface and the second surface, the first surface being at least partially a microstructured surface, wherein the microstructured surface forms microlenses or a lenticular surface;
• a first composite image, wherein the first composite image comprises a collection of complete or partial images located such that when viewed through the microstructured surface of the cover layer, the collection of complete or partial images forms the first composite image;
• and
• an imaged layer located adjacent to the cover layer, wherein the imaged layer comprises at least one personalized laser imaged second composite image comprising a collection of complete or partial images such that when viewed through the microstructured surface of the cover layer the collection of complete or partial images forms the second composite image, and wherein there are no adhesive layers between the cover layer and the image layer.

A method of preparing a laser-personalizable security article comprising:

• providing an optically transparent cover layer sheet with a first surface, a second surface, and a thickness between the first surface and the second surface, the first surface being at least partially a microstructured surface, wherein the microstructured surface forms microlenses or a lenticular surface;
• providing a composite image, wherein the composite image comprises a collection of complete or partial images located such that when viewed through the microstructured surface of the cover layer, the collection of complete or partial images forms the composite image;
• and
• providing an imagable layer sheet, wherein the imagable layer comprises a laser imagable layer;
• and
• forming a laminate by laminating the second surface of the cover layer sheet to the imagable layer sheet.