The most common stitch type is without doubt the 301 single needle lockstitch. Typical applications are hemming and lapel padding operations. The needle thread interloops with a blind looper on the surface of the material. This stitch is formed by using a curved needle which enters and exits the fabric from the same side carrying a needle thread. Again its main disadvantage is seam runback. Its main disadvantage is its tendency to run back from the finishing end of the seam.ДЄ derivative of stitch type 101 is stitch type 103 known as single thread Blindstitch or Blindhemming. Stitch Type 101 is most often used for temporary stitching. The 101 Single thread chainstitch is formed using just one sewing thread introduced by the sewing needle. Stitch setting вЂ“ when the thread is drawn onto or into the material Stitch Types 101 вЂ“ Single Thread Chainstitch Cast off вЂ“ is where the needle thread loop is freed from the lower stitch forming deviceДҐ. Conformation вЂ“ this is where the threads are arranged above, below or around the material being sewnД¤. Loop formation вЂ“ a loop of sewing thread is formed in the scarf of the needle as the needle begins to rise from the bottom of its strokeДЈ. Penetration вЂ“ the needle penetrates the fabric carrying the needle threadДў. There are five basic steps to the formation of all stitch types. A looper, used in chainstitch formations, interloops the thread that it carries with another thread. The sewing machine hook be it rotary or oscillating shuttle interlocks the needle thread with the bobbin thread. A third stitch forming device known as a spreader is used in some stitch types to carry the sewing thread from one stitch forming device to another.

This loop of sewing thread is picked up by one of two stitch forming devices namely the hook or the looper. During sewing the needle descends through the fabric to the bottom of its stroke and as the needle rises a loop of sewing thread is formed in the scarf of the needle. The basic principle of all machine sewing depends on consistent loop formation.

In this technical bulletin we will look at the application of the sewing thread and specifically stitches.

The definition of real plies zips