Not every textile raw material is suitable for the production of sewing threads. Only a few meet the high requirements placed on sewing threads by the sewing process and subsequent use. In addition to construction and fineness, the properties of a sewing thread are determined by the choice of raw material. The raw material has a decisive influence on the performance profile in terms of tear and abrasion resistance, elasticity, sewability, colour fastness and much more. 

Modern sewing processes place extreme demands on sewing threads. For example, in a double lockstitch, the sewing thread is pulled through the eye of the needle 70 to 80 times until it is sewn. In addition, it is subjected to sudden stress when the sewing machine starts and stops. Sewing threads must also meet all requirements for abrasion resistance, tear resistance, etc. in subsequent use. The most important raw materials used by AMANN for sewing threads are described in more detail in the following.