Vigilancia Tecnológica

Provided are a core-sheath composite fiber, a production method therefor, and a fiber structure. The core-sheath composite fiber includes: a core component (12) including a melt-anisotropic aromatic polyester (a polymer A); and a sheath component having an islands-in-the-sea structure and including a flexible thermoplastic polymer (a polymer B) and a melt-anisotropic aromatic polyester (a polymer C). The polymer B and the polymer C constitute a sea component and an island component of the islands-in-the-sea structure, respectively. The island component includes a plurality of islands (18) dispersed in a sea (14) that is formed of the sea component.