Method of manufacturing a magnetic tape

Details Method of manufacturing a magnetic tape Method of manufacturing a magnetic tape

1998-02-18

2000-01-11

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

264146, 21912167, 21912169, B23K 2600

Patent

active

060132205

ABSTRACT:
A magnetic tape, in which a protrusion on a magnetic layer or a back layer on a cutting surface of the magnetic tape is eliminated. When a magnetic tape T comprising a magnetic layer 22, a base layer 21 and a back layer 23 is cut to a predetermined width, protrusion of the magnetic layer 22 or the back layer 23 is formed on the end surface of the magnetic tape T. Ultraviolet laser or visible laser is irradiated on the end surface while the magnetic tape T is running to eliminate the protrusion and the end surface is shaped to have cross-section of approximately rectangular or approximately circular shape.

REFERENCES:
patent: 5164243 (1992-11-01), Kanazawa et al
patent: 5363267 (1994-11-01), Fang
patent: 5840239 (1998-11-01), Partanen et al.

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