Polyester resin and preparation method therefor

Abstract

The present invention relates to a polyester resin and a preparation method therefor. Specifically, provided, in an embodiment of the present invention, is a polyester resin including: a copolymer including a diacid moiety and a diol moiety; a phosphorus-based heat stabilizer; and a complementary colorant, wherein the diacid moiety includes a furandicarboxylic acid-based compound-derived moiety, the diol moiety includes an alkylene glycol-based compound-derived moiety, the phosphorus-based heat stabilizer includes an ester group at the terminal end thereof, and the complementary colorant includes a blue dye and a red dye.

Dependencies are inferred from the claim text.