Page 175 - CTS - Sewing Technology - TP - Volume - 2-0

SEWING TECHNOLOGY - CITS

516 – Five Thread full safety (Fig 13)
For over edge seams requiring greater seam security a four thread version of stitch type 504 is used. There are
three, four thread over edge stitch types.

Stitch type 516 is another combination stitch type. This stitch type combines 401 chainstitch with 504 three thread
overedge. It is known as five thread overedge full safety stitch. The 401 element bears the load while the 504
element covers the edge of the material and provides additional seam security.

Fig 13

602 – Twin needle coverseam with top cover (Fig 14)
The stitch type classifications known as 600 are basic coverseam stitch types with the addition of a top covering
thread produced using a top cover or spreader device. This top cover element provides decoration and also
protection where required to the upper surface of the seam.

Stitch type 602 is the same as stitch type 406 but with the addition of a top covering thread.

Fig 14

605 – Three needle coverseam with top cover (Fig 15)

This stitch type is formed with five threads. Three needles, one looper and one cover thread. Stitch type 605 has
high seam elasticity and has an higher than average thread usage. This stitch formation is flat and comfortable
and is a popular choice for stretch garments. This stitch type can also be used as a decorative seam due to the
top cover thread.

Fig 15

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CITS : Apparel - Sewing Technology - Exercise 34