Page 418 - CTS - Sewing Technology - TP - Volume - 2-0

SEWING TECHNOLOGY - CITS

5 Wrong stitch density
Causes: The incorrect unwinding of thread form package during sewing. Twisting of needle thread in the
bottom of thread package.

Remedies: The position of the thread guide should be 2.5 times higher than the position of the thread package.
A foam pad should use at the bottom of the thread package. Correct threading of sewing thread during sewing.
6 Uneven stitch

Cause: Incorrect tension of sewing thread. Used incorrect thread path. Incorrect adjustment of needle thread
path.
Remedies: The setting of accurate tension to the thread. Using of accurate thread path. Using of right thread
path.
7 Staggered stitch
Cause: Due to needle deflection, Due to the wrong needlepoint, Incorrect adjustment of needle and thread
size, Due to defected motion of feed dog.
Remedies: Needle size should be increased. The needle should be changed. Needle size and thread size
should be changed. Feed dog motion should be adjusted.
8 Defected stitch
9 Oil spot or stain (Fig 3)

Fig 3

Seaming Defects:
1 Uneven width.
2 Uneven seam line.
3 Not secured by backstitch.

4 Twisting.
5 No matching of check or stripe.
6 No matching of the seam.
7 Unexpected materials are attached to the sewing.

8 Not sewn by matching face side or back side of fabrics.
9 Use of wrong stitch type.
10 Wrong shade matching of sewing thread.

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CITS : Apparel - Sewing Technology - Exercise 45