| abstract |
An object of the present invention is to provide a paper used as a separator for an electrolytic capacitor, which is thin, has a low density and is strong in spite of its strength, and is excellent in electrical characteristics such as low impedance and low tan δ. SOLUTION: In a paper used for an electrolytic capacitor, by using a phenol resin-based fiber which is extremely fine as a main constituent fiber, the strength can be maintained, the thickness can be reduced and the density can be reduced, and the electric characteristics are excellent. Can be manufactured. |