FILAMENTS FOR BEVERAGE EXTRACTION FILTER AND WOVEN FABRIC COMPRISING SAME FOR BEVERAGE EXTRACTION FILTER

摘要

To provide a filament for obtaining a palatable beverage extracting filter having improved environmental safety, being capable of maintaining the strength of the fabric and having improved formability, and a woven fabric obtained from the filament.;A core-sheath type conjugate filament for a palatable beverage extracting filter, wherein a core component is a homopolyester having a melting point of 220°C or more, the sheath component is a copolyester containing terephthalic acid and a diol as major components and having a melting point is at least 40°C lower than that of the core component, wherein a mass change after boiling in an aqueous ethanol solution in a concentration of 10 mass% for 1 hour is 4% or less, and an eluted amount of heavy metals is less than 0.1 ppm.