LIGHT DIFFRACTION LAYER LAMINATED SHEET AND METHOD OF MANUFACTURING CARDS

摘要

PROBLEM TO BE SOLVED: To provide a light diffraction layer laminated sheet which facilitates manufacturing of a card with an optical analysis structure and to provide such a card.SOLUTION: A light diffraction layer laminated sheet material 20A is laminated on an upper side of a card substrate 10 to constitute a part of a laminate structure of a card 1 and includes: a transparent sheet layer 20; a hologram layer 22 which has a smaller shape than that of the transparent sheet layer 20 and is laminated on a side of one surface, the upper side, of the hologram layer 22; and an HS layer 21 which bonds the transparent layer 20 and the hologram layer 22.