Magnetic wire and recording medium
A recording medium and magnetic wire technology, applied in magnetic recording, electrical recording, data recording, etc., can solve the problems of weak magnetic signal, detection by non-contact reading system, etc.
A recording medium and magnetic wire technology, applied in magnetic recording, electrical recording, data recording, etc., can solve the problems of weak magnetic signal, detection by non-contact reading system, etc.
CN101290483AActive Publication Date: 2008-10-22FUJIFILM BUSINESS INNOVATION CORP
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Abstract
The invention provides a magnetic wire and a recording medium. The magnetic wire includes a magnetic metal wire material having a surface coated with a layer of an insulating material. The magnetic wire has a magnetic coercive force of 30 A / m or less and has a Barkhausen effect.
Description
Magnetic wire and recording media technical field The present invention relates to a magnetic wire contained in a recording medium which can be used to form an image by an electrophotographic system, etc., and a recording medium using the magnetic wire, the magnetic wire enabling detection by a non-contact type magnetic signal detector to the existence of the recording medium. Background technique So far, for the purpose of preventing forgery, secrecy of highly classified information, etc., various papers and parts containing magnetic materials have been researched. As a magnetic material used in paper and parts for this purpose, for example, magnetic fibers produced by fixing magnetic powder on the surface of a fibrous substance are known (see Japanese Patent Application Laid-Open No. 11-107161 and Japanese Patent Laid-Open No. 2004 - Bulletin No. 131888). When the magnetic sensor is brought close to the paper containing the magnetic fibers, the magnetization pattern c...
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Patent Timeline
22 Oct 2008
Publication
CN101290483A
- IPC
- G03G7/00; D21H27/00; D21H21/48
- CPC
- Y10T428/31993; G11B5/642; Y10T428/32
- Inventors
- 布施真理雄; 山口昭治