Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FORGERY PREVENTIVE ADHESIVE SEAL AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP2000272300
Kind Code:
A
Abstract:

To provide an adhesive seal using a hologram useful to prevent forgery and identifying a forged article from a genuine article and having much decorativeness.

The forgery preventive adhesive seal 2 comprises a hologram layer 4 capable of reproducing an image by utilizing an incident light, a retro- reflecting material layer 6 for feeding back the incident light in an incident light entering direction, and an adhesive layer 8 for laminating an article to be sequentially laminated. In this case, the layer 4 reproduces a multiple exposure type in which rainbow hologram images of a two-dimensional image and a three-dimensional image are reproduced by emitting a white light from a specific direction at a specific angle, and the hologram image is erased or new Fourier transformed hologram image is reproduced by emitting a laser beam from a specific direction at a specific angle. The layer 6 has an interference substance layer made of a mica powder covering with an Li-Co-Ti composite oxide represented by a formula Li0.5-xCo0.5-x[Li0.5-xCoxTi1.5]O1 (0<X<0.1) for creating a colored interference color and transparent infinitesimal balls aligned and disposed on the substance layer.


Inventors:
KIMURA ASA
KATSUKI YOSHIO
Application Number:
JP8399199A
Publication Date:
October 03, 2000
Filing Date:
March 26, 1999
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SHISEIDO CO LTD
CITIZEN WATCH CO LTD
International Classes:
B44F1/12; B29C63/00; B41M3/14; G02B5/128; G02B5/22; G02B5/28; G03H1/00; G03H1/18; G03H1/20; G09F3/02; G09F3/03; (IPC1-7): B44F1/12; G02B5/128; G02B5/22; G02B5/28; G03H1/18
Attorney, Agent or Firm:
Yuji Iwahashi