abstract |
Provided is a polyester fiber having improved abrasion resistance and hydrolysis resistance, and having no odor due to a free isocyanate compound at the time of working or melting, and a polyester composition capable of achieving this. To provide. SOLUTION: A polyester (component A), a thermoplastic elastomer (component B), and a compound (C) having one carbodiimide group and having a cyclic structure in which the first nitrogen and the second nitrogen are bonded by a bonding group. A polyester composition, and a fiber comprising the polyester composition. [Selection figure] None |