Thread ProductionVoir la présentation audio
This presentation looks at the processes and stages of thread manufacturing.
Introduction to thread production
Coats produces many different threads and this fundamental definition will be developed in the course of this session.
A few important characteristics of the fibres and filaments which are used for sewing threads are tenacity, elongation, elasticity and recovery, heat resistance and flammability and abrasion resistance.
Spinning of Polyester and Cotton Fibres
The process of manufacturing a spun polyester sewing thread includes the steps; Opening, Carding, 1st and 2nd stage Drawing, Roving, Spinning, Clearing/Splicing & Winding, Assembly Winding, and finally Twisting.
Without the correct level of finishing twist, a conventional thread cannot be controlled during sewing.
A whole range of sewing threads can be produced from the few raw materials we’ve discussed today.
All synthetic threads, polyester / cotton corespun threads and some 100% cotton threads are wet processed on what are called cheeses.
To prevent thread damage at the needle eye and to help the passage of the thread through the thread path of the sewing machine, most threads are lubricated after dyeing.
The preferred method of sizing sewing thread for Coats Global Offer Products is the Tex System. Tex is the weight in grams of 1,000 metres of thread or yarn. The higher the number, the coarser the thread.
Thread Production Quiz
Test your understanding of the presentation with the thread production quiz.