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1. (WO2018184027) SYNTHETIC HAIR EXTENSIONS AND METHODS FOR MAKING THE SAME

Pub. No.:    WO/2018/184027    International Application No.:    PCT/US2018/025764
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Apr 03 01:59:59 CEST 2018
IPC: D01F 1/06
D01F 6/06
D02G 3/02
Applicants: NT OF AMERICA CORPORATION
Inventors: OSPINO, Alfonso
SAYER, Juan, Carlos
Title: SYNTHETIC HAIR EXTENSIONS AND METHODS FOR MAKING THE SAME
Abstract:
A method for making synthetic hair extensions is provided. According to the method, raw material including polypropylene resin is mixed, the raw material is extruded to produce polypropylene yarn, some of the polypropylene yarn is formed into a hank, the ends of the yarn are pressed between the sheets of a press such that the ends abut a lip of one of the sheets, and the hank of yarn with the press is passed through a conveyor furnace to relax the yarn. Also provided is a mixture for extrusion into polypropylene yarn. The mixture comprises polypropylene resin, 2-8% magnesium stearate, 3-8% dye, and optionally 1-4% flame retardant (percentages by weight relative to weight of polypropylene resin).