Identification function paper and identification card

• US 20050121527A1
• Filed: 11/17/2004
• Published: 06/09/2005
• Est. Priority Date: 11/19/2003
• Status: Active Grant

• Current Assignee: Ehime Prefectural Government, Lintec Corporation
• Original Assignee: Ehime Prefectural Government, Lintec Corporation
• Inventors: Morikawa, Masaaki, Matsushita, Taiga, Fujiwara, Katsuhisa, Senba, Tatsuo, Nagashima, Kousaku, Yamamoto, Satoshi
• Granted Patent: US 7,322,522 B2
• Time in Patent Office: Days
• US Class Current: 235/493
• CPC Class Codes: B42D 2033/16 Magnetic or magnetisable material
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/355 Security threads
• CPC Class Codes: B42D 25/369 Magnetised or magnetisable materials
• CPC Class Codes: D21H 15/12 partly organic, partly inorganic
• CPC Class Codes: D21H 21/48 Elements suited for physical verification, e.g. by irradiation

Abstract

The present invention provides identification functional paper which allows secure measurement of a change in signal caused by a magnetic material and excels in waveform reproducibility when measuring a single specimen two or more times, and an identification card including the identification functional paper. The identification functional paper includes a magnetized fiber obtained by filling the fiber inner cavity with a magnetic material, and the identification card includes the identification functional paper.

Claims

1. Identification functional paper comprising a magnetized fiber obtained by filling a fiber inner cavity with a magnetic material.

2. The identification functional paper according to claim 1, wherein the magnetized fiber includes the magnetic material in an amount of 25 to 45 wt %.

3. The identification functional paper according to claim 1, comprising the magnetized fiber in an amount of 0.001 to 30 wt %.

4. The identification functional paper according to claim 1, comprising the magnetic material in an amount of 0.01 to 10 wt %.

5. An identification card comprising the identification functional paper according to claim 1.