Dyeable polyolefin fiber and fiber structure comprising the same

摘要

A polymer alloy fiber having a sea-island structure in which a polyolefin (A) is a sea component and a copolymerized polyester (B) copolymerized with cyclohexanedicarboxylic acid is an island component, and the dispersion diameter of the island component in the fiber cross section is 30 to 1000 nm. A dyeable polyolefin fiber, characterized in that A dyeable polyolefin that can be suitably used as a fiber structure by imparting vivid and deep color development to polyolefin fibers with excellent lightweight properties, and further suppressing oxidative degradation during tumbler drying and yellowing during long-term storage. Provide fiber.