Evaluation of Curl Durability for Artificial Hair Fibers

    January 2007 in “ Proceedings of the Korean Fiber Society Conference ”
    Ki‐Young Kim, Sung-Won Byun, Jae-Ki Park, Ho-Seung Jeon
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    TLDR New resin B makes artificial hair fibers hold curls longer than traditional resin A.
    The study from 2007 evaluated the curl durability of artificial hair fibers, specifically comparing traditional resin A (ABS-based) with new resin B (styrene-based) in a 70:30 weight ratio. The fibers were produced using a twin-screw extruder and then drawn to create wig fibers. Durability was tested by heat setting the fibers on rods of different diameters and measuring curl elongation over time, with a 15% elongation marking the end of the curl's lifespan. The results showed that fibers with resin B had better curl durability, particularly for smaller curls (18mm diameter), and maintained less than 15% deformation after 2160 hours for larger curls. Accelerated life testing at 50°C and 60% relative humidity supported these findings, indicating that the improved durability of the PVC/B fibers was due to their enhanced heat resistance and lower density.
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