Title:
MULTILAYER BODY, AUTHENTICITY DISCRIMINATION METHOD, AUTHENTICITY DISCRIMINATION SYSTEM, AND PROGRAM
Document Type and Number:
Japanese Patent JP2020075487
Kind Code:
A
Abstract:
To provide: a multilayer body having an improved forgery prevention property; a method for discriminating authenticity thereof; an authenticity discrimination system; and a program which can be incorporated into the system.SOLUTION: The multilayer body comprises a resin layer (A) containing a first illuminant and a resin layer (B) containing a laser beam energy absorber and, further, satisfies at least one of the following (1) and (2): (1) the resin layer (B) contains a second illuminant which is different from the first illuminant; and (2) the multilayer body further comprises a resin layer (C), and the resin layer (C) is positioned on a side of the resin layer opposite to the resin layer (A) and contains the second illuminant different from the first illuminant.SELECTED DRAWING: Figure 1
Inventors:
TAKEDA KIYOHIDE
SUZUKI KENTARO
WAKAYAMA SHOTA
FUKUI MASAYA
TANAKA MASANORI
SUZUKI KENTARO
WAKAYAMA SHOTA
FUKUI MASAYA
TANAKA MASANORI
Application Number:
JP2019172422A
Publication Date:
May 21, 2020
Filing Date:
September 24, 2019
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO
MGC FILSHEET CO LTD
PLAGENOM CO LTD
MGC FILSHEET CO LTD
PLAGENOM CO LTD
International Classes:
B32B27/18; B32B7/023; B32B18/00; B32B27/36; B41M5/26; B42D25/30; C09K11/08
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes