The total of 100 parts by weight by the frame polylactic acid resin (A) and adipic acid ester plasticizer (B), adipic acid ester of 30-3 parts by weight and 70 to 97 parts by weight of the polylactic acid resin (A) mowing a monofilament, characterized in that obtained by spinning a resin composition obtained by blending a plasticizer (B). It has a biodegradable, mowing resistance, breakage resistance, to provide a mowing for monofilament which is excellent in wear resistance.ポリ乳酸樹脂(A)とアジピン酸エステル系可塑剤(B)の合計を100重量部として、70~97重量部のポリ乳酸樹脂(A)と30~3重量部のアジピン酸エステル系可塑剤(B)を配合してなる樹脂組成物を紡糸してなることを特徴とする草刈用モノフィラメント。生分解性を有し、草刈性、耐折損性、耐摩耗性に優れる草刈用モノフィラメントを提供する。
