US 12,434,503 B2
Laminate, card, method of manufacturing card, method of producing card, card information recording sheet and card including the same
Tomo Nishizawa, Tokyo (JP); Yasushi Ooba, Tokyo (JP); Naoki Minamikawa, Tokyo (JP); and Tomoko Kotegawa, Tokyo (JP)
Assigned to TOPPAN INC., Tokyo (JP)
Filed by TOPPAN INC., Tokyo (JP)
Filed on Sep. 14, 2022, as Appl. No. 17/944,499.
Application 17/944,499 is a continuation of application No. PCT/JP2021/029029, filed on Aug. 4, 2021.
Claims priority of application No. 2020-132592 (JP), filed on Aug. 4, 2020; application No. 2021-067112 (JP), filed on Apr. 12, 2021; and application No. 2021-095146 (JP), filed on Jun. 7, 2021.
Prior Publication US 2023/0021631 A1, Jan. 26, 2023
Int. Cl. B42D 25/324 (2014.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B32B 37/12 (2006.01); B42D 25/23 (2014.01); B42D 25/24 (2014.01); B42D 25/328 (2014.01); B42D 25/445 (2014.01); B42D 25/45 (2014.01); G02B 5/02 (2006.01)
CPC B42D 25/324 (2014.10) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 37/12 (2013.01); B42D 25/445 (2014.10); B42D 25/45 (2014.10); G02B 5/021 (2013.01); B32B 27/304 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2264/10 (2013.01); B32B 2264/302 (2020.08); B32B 2270/00 (2013.01); B32B 2307/412 (2013.01); B32B 2367/00 (2013.01); B32B 2369/00 (2013.01); B32B 2425/00 (2013.01); B42D 25/23 (2014.10); B42D 25/24 (2014.10); B42D 25/328 (2014.10)] 12 Claims
OG exemplary drawing
 
1. A laminate, comprising: in a thickness direction of the laminate,
a transfer foil in which at least a patch substrate, a relief forming layer, a reflective layer, and an adhesive layer are sequentially laminated;
a protective sheet that is provided on a first side of the transfer foil in the thickness direction; and
an information recording sheet that is provided on a second side of the transfer foil facing away from the protective sheet in the thickness direction, wherein
the relief forming layer includes a relief structure having a concavo-convex shape composed of concavities and convexities on at least part of a first surface of the relief forming layer in contact with the reflective layer,
a second surface of the reflective layer in contact with the first surface has a shape corresponding to the concavo-convex shape of the relief structure,
the relief forming layer is composed of one or a combination of a thermoplastic resin, a thermosetting resin, and an ultraviolet curable resin,
the relief structure has a plurality of island regions that are arranged in a predetermined pattern and a sea region on the first surface as viewed in the thickness direction,
in the island regions, the relief forming layer has one or a combination of functional groups including a hydroxyl group, a carboxyl group, and a carbonyl group and a rough surface, and
in the sea region, the relief forming layer has neither the functional groups nor the rough surface, or a content of the functional groups is smaller than in the island regions, or a roughness degree and an area of the rough surface are smaller than in the island regions, wherein a ratio of an area of the island regions to a total area of an entire region including the island regions and the sea region is 50% or more and 80% or less.