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What this lesson answers

Activewear and Performance Academy — questions covered in this lesson

  • How to calculate seam stretch ratio for 4-way stretch fabrics?
  • Best flatlock machine settings for high-compression leggings
  • Preventing skipped stitches in polyester spandex blends
  • Difference between bulked nylon and textured polyester thread for activewear
  • Root cause of seam cracking in performance athletic gear

Key terms

Flatlock SeamElastane RecoveryDifferential FeedSeam ElongationBall-point NeedleUltrasonic Bonding

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