BIOCOMPATIBLE CORE-SHELL COMPOSITE FIBER, BIOCOMPATIBLE SYNTHETIC FIBER AND METHOD FOR PRODUCTION THEREOF

摘要

A biocompatible core-shell composite fiber, wherein its core material comprises a thermoplastic synthetic polymer and its shell material comprises a silk powder being substantially free of particles having a particle diameter of more than 10 μm and a thermoplastic synthetic polymer having a melting point of 200°C or lower; and a biocompatible fiber which comprises a silk powder being substantially free of particles having a particle diameter of more than 10 μm and a thermoplastic synthetic polymer having a melting point of 200°C or lower. The fiber contains a thermoplastic synthetic polymer as its main component and exhibits excellent biocompatibility and silk-like gloss, feeling, moisture holding property and the like. Although it contains a considerable amount of a silk powder, it is reduced in the lowering of strength and exhibits satisfactory strength in practical use.