Dai Nippon Printing Co., Ltd.

Atsushi Umezawa

Kenji Ueda

Tetsuya Toshine

Minoru Azakami

Toru Nishioka

Akihiro Mizumura

A magnetic card of the invention comprises a card substrateon which a magnetic layer, a thin-film layerformed of a metal or a metal compound for concealing the magnetic layer, a printed layerand a volume hologram layerare successively provided, wherein magnetic information is recorded on or read from a volume hologram layer side. The volume hologram layeris composed essentially of a photosensitive material comprising a cationic polymerizable compound, a radical polymerizable compound, a photo-radical polymerization initiator system that is sensitive to light of a specific wavelength to polymerize the radical polymerizable compound, and a photo-cationic polymerization initiator system that is less sensitive to the light of a specific wavelength but sensitive to light of another wavelength to polymerize the cationic polymerizable compound. The magnetic card is improved in terms of wear resistance to sliding contact with a magnetic head, and ensures precise writing or reading of magnetic recording data, with improved ability to prevent forgery.

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Ushiku, Japan

Atsushi Umezawa