Introduction
One
of the forgotten elements in sewing manufacturing is seam engineering.
For example, a typical pair of branded five pocket jeans retailing for
$30 to $75 is sewn with approximately 250 yards (200 meters) of thread.
The cost of a quality thread for these jeans is approximately $0.25 U.S.
per garment.
Showing posts with label Seam/Sewing. Show all posts
Showing posts with label Seam/Sewing. Show all posts
08 April 2015
Seam Engineering (part 2/2)
Fabric Type and WeightFabric type and weight can affect seam performance depending on the following:
• Fiber content (100% cotton, cotton/polyester blend, nylon).
• Fabric construction:
o Woven or knit.
o Type of weave used (plain, twill, jersey, tricot).
o Fill count.
o Yarn type and size.
• Pattern placement and seam direction.
• Propensity of the yarns in the seam to shift or pull out of the seam.
When engineering seams, we recommend doing tensile tests on the fabric to determine its strength. You cannot specify seam strength requirements that are stronger than the fabric itself.
• Fiber content (100% cotton, cotton/polyester blend, nylon).
• Fabric construction:
o Woven or knit.
o Type of weave used (plain, twill, jersey, tricot).
o Fill count.
o Yarn type and size.
• Pattern placement and seam direction.
• Propensity of the yarns in the seam to shift or pull out of the seam.
When engineering seams, we recommend doing tensile tests on the fabric to determine its strength. You cannot specify seam strength requirements that are stronger than the fabric itself.
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