Patent ID: 9560891
Date: 2017-02-07
CPC Classifications: A41G,A63H,C08K,C08L,D01F,D10B

Claim:
1. A polyester-based fiber for artificial hair obtained by melt spinning a polyester resin composition, wherein the polyester resin composition comprises 100 parts by weight of a polyester resin, 5 to 40 parts by weight of a brominated epoxy flame retardant, and 1.5 parts by weight or more and less than 7 parts by weight of an antimony oxide, the polyester resin is at least one kind of resin selected from the group consisting of polyalkylene terephthalate and a copolymerized polyester containing polyalkylene terephthalate as a main component, and the polyester-based fiber for artificial hair has aggregates of the brominated epoxy flame retardant that are dispersed in the polyester resin in a form of islands, as viewed in a cross section of the fiber parallel to a fiber axis direction, and also has 50 or more aggregates of the brominated epoxy flame retardant, each aggregate having a length-to-width ratio of 2 to 20 and a diagonal width of 0.05 μm or more, per 360 μm