Yarn Crimp Tester: Complete Guide to Testing Crimp in Textile Fabrics
A yarn crimp tester is a special testing instrument in the textile industry that tells you the ‘crimp’ percentage or crimp ratio of yarns. Crimp here can be defined as the waviness that yarns have because of interlacing during the weaving process. The crimp tester relies on the individual warp extracted and placed into the tester grip, where the yarn is pulled to straighten the yarn, and the length is measured. It has many functions and supports fabric design, yarn consumption estimations, and quality control in textiles. What Is Yarn Crimp? A yarn crimp is the waviness of the woven yarn. This is because when warp and weft yarns interlace during weaving, they don’t weave in straight lines, but each yarn bends over and under the crossing yarns, which introduces the wavy corrugated path of weaving. The waviness in the yarn is called crimp. A more technical definition of yarn crimp is the percentage excess of the yarn axis length over the cloth length. You can imagine the length of ...