VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND CARD

Title:

VOLUME HOLOGRAM SHEET TO BE EMBEDDED, FORGERY PREVENTION PAPER, AND CARD

Document Type and Number:

WIPO Patent Application WO/2011/090030

Kind Code:

A1

Abstract:

Provided is a volume hologram sheet to be embedded, which has sufficient resistance to mechanical stress such as tensile stress, shear stress, or compression stress during processing, even when the sheet is thin and under heating conditions. Also provided are a forgery prevention paper, and card which use said volume hologram sheet to be embedded. The volume hologram sheet to be embedded is provided with a volume hologram layer, and a base material which is disposed on only one surface of the volume hologram layer by means of an adhesive means, wherein the peeling strength of the volume hologram layer and the base material is 25gf/25mm or more.

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Inventors:

OIKAWA NOBUKO (JP)
AZAKAMI MINORU (JP)

Application Number:

PCT/JP2011/050765

Publication Date:

July 28, 2011

Filing Date:

January 18, 2011

Export Citation:

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Assignee:

DAINIPPON PRINTING CO LTD (JP)
OIKAWA NOBUKO (JP)
AZAKAMI MINORU (JP)

International Classes:

G03H1/18; B42D15/10; C09J7/35; G03H1/02

Foreign References:

JP2007108253A	2007-04-26
JP2003306896A	2003-10-31
JP2004037623A	2004-02-05
JP2003213597A	2003-07-30
JP2007108253A	2007-04-26
JP2002307879A	2002-10-23

Other References: