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