Title:
LAMINATE, PRINT PRODUCT, AND METHOD USING LAMINATE
Document Type and Number:
WIPO Patent Application WO/2022/102751
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a laminate, etc., capable of being used as, inter alia, an information medium for which security is improved by adding an information display that is recognizable via an infrared camera or the like while maintaining the black-colored, etc., information display of a laser coloring layer. Provided is a laminate characterized by comprising: a base material layer; a near infrared ray-absorbing layer that is formed on a first surface side of the base material layer and includes a near infrared ray-absorbing ink composition containing a near infrared ray-absorbing material; and a laser coloring layer that is formed on a second surface side of the base material layer, contains a laser coloring agent, and performs coloring by applying laser light, wherein the near-infrared ray absorbing material includes cesium tungsten oxide or lanthanum hexaboride, and applying laser light to a target portion of the near-infrared ray absorbing layer lowers near-infrared ray absorption in at least a prescribed wavelength range in the target portion.
Inventors:
MIN XIN (JP)
Application Number:
PCT/JP2021/041758
Publication Date:
May 19, 2022
Filing Date:
November 12, 2021
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B41M5/26; B32B7/023; B42D25/328; B42D25/382; G07D7/12
Domestic Patent References:
| WO2018151238A1 | 2018-08-23 | |||
| WO2021124759A1 | 2021-06-24 | |||
| WO2018151238A1 | 2018-08-23 |
Foreign References:
| JP2019038255A | 2019-03-14 | |||
| JP2003302519A | 2003-10-24 | |||
| JP4323578B2 | 2009-09-02 | |||
| JP2005505444W | ||||
| JP2005246821A | 2005-09-15 | |||
| JP2008162233A | 2008-07-17 | |||
| JPH0143597B2 | 1989-09-21 | |||
| JPH027096B2 | 1990-02-15 | |||
| JPH0241400B2 | 1990-09-17 | |||
| JP6160830B2 | 2017-07-12 | |||
| JP5854329B2 | 2016-02-09 | |||
| JP6167803B2 | 2017-07-26 |
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
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