| 摘要 |
<p>Disclosed is a hair extension manufacturing method comprising: primarily sewing an end of a hair bundle arranged horizontally; folding the hair bundle about the primarily sewn portion of the hair bundle by causing the primarily sewn portion to pass through a guide recess of a heat treatment device and simultaneously applying heat thereto; and secondarily sewing a portion below the primarily sewn portion. The method employs minimum sewing to process the sewn portions to a minimum thickness, thereby producing a high-quality hair extension that feels excellent when worn.</p> |
