ANTI-COUNTERFEITING PATTERN HAVING OPTICALLY VARIABLE STRUCTURE

Title:

ANTI-COUNTERFEITING PATTERN HAVING OPTICALLY VARIABLE STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2015/062543

Kind Code:

A1

Abstract:

An anti-counterfeiting pattern having an optically variable structure, comprising lithographic lines (1) and gravure blind embossed relief lines (2) printed on a carrier. The lithographic lines (1) are a set of lithographic curve lines having a curvature, the widths of the lithographic curve lines changing from thick to thin, or thin to thick. The gravure blind embossed relief lines (2) are a set of curve lines corresponding to the lithographic lines, and having the same curvature. The relief lines (2) are overprinted on the lithographic lines (1) with a width variation identical to that of said lithographic lines (1). Accurate overprinting of the two printing types forms a curved relief structure wherein the width of the lines changes continuously. When a printed product is rotated and observed, a continuously variable optical effect is seen.

Inventors:

ZHANG XING (CN)
MENG QINGFEI (CN)
ZHANG YONG (CN)
ZHOU XIAOQUAN (CN)
YUAN GUOLIN (CN)
ZHANG SHIFAN (CN)

Application Number:

PCT/CN2014/090044

Publication Date:

May 07, 2015

Filing Date:

October 31, 2014

Export Citation:

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Assignee:

CHINA BANKNOTE INK CO LTD (CN)
CHINA BANKNOTE PRINTING & MINT (CN)

International Classes:

B41M3/14; B41M3/06; B42D25/29; B42D25/30

Foreign References:

CN103895374A	2014-07-02
EP0766103A1	1997-04-02
CN1205276A	1999-01-20
CN1452561A	2003-10-29
CN1671562A	2005-09-21
CN101410251A	2009-04-15
CN101691091A	2010-04-07
DE102011011349A1	2012-08-16
GB1124467A	1968-08-21
CN200610020757A	2006-04-21
CN1262430A	2000-08-09

Other References: