Title:
PRINTED MATTER, BOOKLET, COMBINATION OF LIGHT SOURCE AND PRINTED MATTER, AND METHOD FOR DETERMINING AUTHENTICITY OF PRINTED MATTER
Document Type and Number:
WIPO Patent Application WO/2021/201259
Kind Code:
A1
Abstract:
[Problem] To be capable of changing the shape of a colored pattern layer only by moving a light source for irradiating a printed matter with excitation light closer to or further from the printed matter. [Solution] A printed matter 10 has a base material 11, a colored pattern layer 30 provided on the base material 11, and a light emitting printing layer 20 provided on the colored pattern layer 30 and composed of a light emitting body. The colored pattern layer 30 has a dark-colored main body region 30b in the central portion, and a peripheral region 30a in which the color density decreases from the main body region 30b toward a peripheral edge 30c.
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Inventors:
MIN XIN (JP)
MASUYAMA YUKO (JP)
MASUYAMA YUKO (JP)
Application Number:
PCT/JP2021/014250
Publication Date:
October 07, 2021
Filing Date:
April 01, 2021
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B41M3/14; B42D25/337; B42D25/378; G07D7/128
Foreign References:
| JP2014117927A | 2014-06-30 | |||
| JP2016018499A | 2016-02-01 | |||
| JPH11268228A | 1999-10-05 | |||
| JP2011144243A | 2011-07-28 | |||
| US20050035196A1 | 2005-02-17 | |||
| JP2011514937W | ||||
| JP5610121B2 | 2014-10-22 |
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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