Title:
DISPLAY MATERIAL ON WHICH LASER PRINTING IS PERFORMED AND PACKAGING BODY USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/215348
Kind Code:
A1
Abstract:
[Problem] To provide a display material and a packaging body that have high transparency and enable clear printing by a laser.
[Solution] This display material comprises at least one layer enabling printing by laser irradiation, wherein at least a part of the layer is printed by a color change based on laser irradiation, and a significant difference is found in at least one value among RGB values showing color elements and a printing portion has a thickness of 5 μm or more and 200 μm or less when cross sections of the printing portion and a non-printing portion are observed by a digital microscope.
Inventors:
ISHIMARU SHINTARO (JP)
HARUTA MASAYUKI (JP)
HARUTA MASAYUKI (JP)
Application Number:
PCT/JP2021/015608
Publication Date:
October 28, 2021
Filing Date:
April 15, 2021
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B41M5/26; B41M5/32; B41M5/46
Domestic Patent References:
| WO2018074480A1 | 2018-04-26 | |||
| WO2021020269A1 | 2021-02-04 | |||
| WO2014188828A1 | 2014-11-27 |
Foreign References:
| JP2004216740A | 2004-08-05 | |||
| JP2004268554A | 2004-09-30 | |||
| JP2005534535A | 2005-11-17 | |||
| JP2019025754A | 2019-02-21 | |||
| JP2015083623A | 2015-04-30 | |||
| JP2013240885A | 2013-12-05 | |||
| JP2020146962A | 2020-09-17 | |||
| JP2002362027A | 2002-12-18 | |||
| JP2017209847A | 2017-11-30 | |||
| JP2017196896A | 2017-11-02 |
Other References:
See also references of EP 4140755A4
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