Features of Stitch class-300 (Lock stitch) , Properties and uses

Stitch class-300:Lock stitch : 

Features :

  1. The stitch types in this class are formed with two or more groups of threads, and have for a general characteristic the interlacing of these thread.
  2.  Loops of one group are passed through the material and are secured by the thread or threads of a second group. 
  3. One group are generally referred to as the needle threads and other group as bobbin threads.
  4. The interlacing of thread in stitches of this class makes them very secure and difficult to unravel.

Properties :

  1. Low bulk and thin
  2. Good strength and abrasion resistance Poor elasticity
  3. Non ravel limited sewing length
  4. Need to replace bobbin thread. 
  5. Cant use for seams requiring stretch. 
  6. Equal amount of needle and bobbin threads are used and upper and lower threads interlocks in the center of the fabric.

Uses :

  • Button holing, button attaching, side seam, zigzag stitch, blind stitch.
  • Used for general sewing both for domestic sewing machine and industrial uses.
  • General purpose: sewing, joining different components during garments making, top stitching etc.
  • Extensively used in sewing and fabric attachment as pocket, collar, cuff, facing etc


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