| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a paper that is suppressed in exposure of a magnetic material to front and back surfaces compared to a case where the magnetic material does not have unevenness on an outer peripheral surface. <P>SOLUTION: A paper 10 includes pulp fibers and a linear magnetic material having a large Barkhausen effect and unevenness on an outer peripheral surface (a magnetic body 12 having unevenness including protrusions 12A and recesses 12B on an outer peripheral surface). <P>COPYRIGHT: (C)2013,JPO&INPIT |
