Fiber structure and method for production thereof

Abstract

A fiber structure including: (A) a single fiber having a fiber diameter of 3 μm or more and/or a fiber bundle having a fiber bundle diameter of 3 μm or more, and (B) a single fiber having a fiber diameter of 1 μm or less, wherein the component (A) has a number average fiber diameter and/or a number average fiber bundle diameter of 4 μm or more, at least a part of the component (B) is dispersed in the component (A) in a monofilamentous state in the cross-section taken in the thickness-wise direction of the fiber structure, at least a part of the component (B) dispersed in the monofilamentous state is bent and/or tangled to form a void space, and at least one surface of the fiber structure is covered with the component (B).

Dependencies are inferred from the claim text.