Title:
TRANSPARENT-MATERIAL PRINTING MEDIUM AND ANTI-FORGERY MEDIUM THROUGH DOUBLE-SIDED LINE DRAWING PRINTING
Document Type and Number:
WIPO Patent Application WO/2023/090939
Kind Code:
A1
Abstract:
Disclosed is an anti-forgery medium comprised of a first printing medium sheet that is made of transparent material and has a certain thickness, a first print pattern formed on a first surface of the first printing medium sheet, and a second print pattern formed on the lower side spaced apart by at least the thickness of the first printing medium sheet, wherein the first print pattern and the second print pattern are formed such that the degree of overlap between the first print pattern and the second print pattern changes periodically as the first print pattern is moved relative to the second print pattern parallel to the surface of the first printing medium sheet, and the second print pattern is formed to have changes in pattern over a differentiation region or area portion corresponding to a form to be expressed, such as those in which parallel lines or two-dimensional closed curve figures that are repeatedly arranged periodically, forming a pattern of the corresponding portion, are removed partially or moved a certain distance on the basis of the direction of the relative movement, are fully printed, or are not fully printed.
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Inventors:
KIM JONG HYUN (KR)
Application Number:
PCT/KR2022/018315
Publication Date:
May 25, 2023
Filing Date:
November 18, 2022
Export Citation:
Assignee:
KWANGINSA CO LTD (KR)
International Classes:
B42D25/29; B41F1/26; B41M1/06; B41M3/14; B42D25/20
Foreign References:
| KR20180126538A | 2018-11-27 | |||
| KR20180101682A | 2018-09-13 | |||
| KR100744035B1 | 2007-07-30 | |||
| KR20160096415A | 2016-08-16 | |||
| US20070102921A1 | 2007-05-10 |
Attorney, Agent or Firm:
SEWON PATENT LAW FIRM (KR)
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