The invention of artificial hair fibers to fulfill PTT resin PET resin and the resin of 100 parts by weight of the polyester and in that it comprises about 5 to 30 parts by weight of a PP resin and polyolefin compatibilizer characterized in that 3-10 wt . In one embodiment the ratio of the PTT resin and the PET resin is 30:70 to 70:30 range , the PP resin ratio PTT / 5 ~ 30 parts by weight based on PET 100 parts by weight . A polyolefin in order to improve the compatibility between the PP and PET and PPT in the main chain and the resin used as a compatibilizer for the polymer side chain . For the PTT / PET 100 parts by weight of a quencher may include inorganic fine particles 0.05 to 5 parts by weight .
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