Magnetic cards and method of manufacturing the same

Details Magnetic cards and method of manufacturing the same Magnetic cards and method of manufacturing the same

1980-12-24

1982-10-26

Pitts, Harold I.

Registers

Records

Magnetic

235488, G06K 1902

Patent

active

043563910

ABSTRACT:
The magnetic card comprises upper and lower resinous pack films, a sheet printed with necessary items and sealed in the upper and lower resinous pack films. A magnetic band recorded with information is interposed between the sheet and the upper pack film. A magnetic card sheet utilized to form the magnetic card is prepared by simultaneously passing first and second synthetic resin films through a T die while the films are still soft. The second synthetic resin film is incorporated with a powder of iron oxide and one half of the T die is provided with a plurality of spaced parallel grooves so that the second synthetic resin film is embedded in the first synthetic resin film at the grooves. Then a third synthetic resin film having lower melting point than the first and second resin films is bonded to the first synthetic resin film to cover the second synthetic resin film in the grooves.

REFERENCES:
patent: 3526567 (1967-04-01), Macone
patent: 3711355 (1970-04-01), Staats et al.
patent: 4044231 (1977-08-01), Beck
patent: 4058839 (1977-11-01), Darjany
patent: 4297570 (1981-10-01), Kowalski

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