Composite fiber containing inorganic fine powder

摘要

A composite fiber having a single filament fineness of not more than 8 deniers and comprising: a hydrogenation product of a block copolymer comprising poly(vinylaromatic) blocks and poly(conjugated diene) blocks and containing a specific phenol-based compound and a large amount of an inorganic fine powder and a fiber-forming polymer; this composite fiber has, in spite of a large content of the inorganic fine powder and its small fineness, excellent spinnability upon its production and excellent processability after spinning, as well as excellent fiber properties.