Page 417 - CTS - Sewing Technology - TP - Volume - 2-0
P. 417

SEWING TECHNOLOGY - CITS



            Checking Garment In Respect of Stitching

           Objectives : At the end of this exercise you shall be able to
           •  analyse sewing defects.


           Sewing defects:
           1  Needle damage: for example, thread drawn-off from the fabric or making of a large hole to the fabrics.

           2  Skipped stitch:
              Cause: Unsuitable thread, Defected Needle, Wrong needle size, poor feed of fabric. (Fig 1)
              Remedies: Replace defected needle, use right needle, needle, thread size adjusted, use right feed mechanism.

             Fig 1
























           3  Thread drawn-off.
           4  Seam puckering:
              Cause: Tension pucker is caused while sewing with too much tension, thereby causing a stretch in the thread.
              After sewing, the thread relaxes.
              Remedies: Reduce the tension applied to the thread while it is being wound onto the lock stitch bobbin. Set
              the needle thread tension to be as light as possible while achieving a balanced stitch at the same time. This
              will reduce the amount of puckering while the thread is stretched and improve the sewability (Fig 2)

             Fig 2



























                                                           402
                                     CITS : Apparel - Sewing Technology - Exercise 45
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