STITCH TESTS
Stitched seams play an important role in clothing, upholstery and footwear, as they affect both structural integrity and appearance. Some seams contain reinforcements, providing support in areas of high stress, or to strengthen a weak upper material that might have been chosen for fashion purposes.
If a poor seam strength is reported in a stitch tear test, it can be used to recommend improvements in construction by examining how the seam failed. For example, thread density, size and type of thread, needle type/ size, and seam allowance may be adjusted.