Development of a magnetic-shield fabric consisted of permalloy wire

We developed a magnetic-shield fabric consisted of permalloy wire. One of the application purposes is for magnetic shielding of parts that cannot be covered with permalloy sheets. A permalloy wire is magnetically annealed with effective temperature, that is determined by measuring a residual magnetic field of permalloy wire itself, in order to maximize the magnetic shielding effect. Even if permalloy wire, the magnetic shielding effect was obtained by magnetic anneal.