COUNTERFEIT PREVENTION STRUCTURE BODY AND FABRICATION METHOD THEREFOR

Title:

COUNTERFEIT PREVENTION STRUCTURE BODY AND FABRICATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2014/077329

Kind Code:

A1

Abstract:

A counterfeit prevention structure body (10) comprises a microscopic unevenness forming layer (11), further comprising first regions (13) which include optical elements which have unevenness structures with a depth-to-width ratio, which is a ratio of depth to width thereof, which is greater than or equal to a first value, and second regions (14) which include optical elements which have unevenness structures with a depth-to-width ratio which is less than the first value. The first regions (13) have a higher translucence than the second regions (14). The counterfeit prevention structure body (10) further comprises particles (15) whereby depression parts of the unevenness structures which the first regions (13) include are filled, and reflective layers (12) which are positioned upon the unevenness structures which the second regions (14) include.

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Inventors:

YASHIKI KAZUHIRO (JP)

Application Number:

PCT/JP2013/080819

Publication Date:

May 22, 2014

Filing Date:

November 14, 2013

Export Citation:

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Assignee:

TOPPAN PRINTING CO LTD (JP)

International Classes:

G02B5/18; B42D25/30; B42D25/328; B42D25/40; G02B5/08

Domestic Patent References:

WO2010147185A1

2010-12-23

Foreign References:

JP2011173379A	2011-09-08
JP2009063703A	2009-03-26
JP2003255115A	2003-09-10
JP2008530600A	2008-08-07
JP2012063738A	2012-03-29
JP2007112988A	2007-05-10
JP2007115356A	2007-05-10
JPH0237543A	1990-02-07

Other References: