| abstract |
(57) [Summary] [PROBLEMS] To provide a magnetic fiber having a good magnetic property, which contains a magnetic substance in the fiber lumen, which is a raw material for paper, and a magnetic paper having a good magnetic property made of this magnetic fiber. [Structure] According to the present invention, 25% by weight of a magnetic substance is contained in the lumen of the fiber. Magnetic fibers containing ~ 45 wt%, and fibers having lumens dispersed in an aqueous metal salt solution containing a ferrous salt as a main component, An alkaline aqueous solution is added to this solution to generate a metal hydroxide, the metal hydroxide is oxidized, and a magnetic material is produced in the fiber lumen. Furthermore, magnetic paper made of these magnetic fibers. |