Yarn Count Determination from Woven Fabric
topic
Yarn count determination from woven fabric unravels sufficient thread length to determine linear density by weighing a measured length per ISO 7211, with unravelled thread lengths of 20 to 50 centimetres requiring straightening under defined tension before measurement to remove crimp-induced shortening, with multiple measurements from different positions in the fabric averaging count variation, and the count determination enabling fabric specification completion when only physical samples without documentation are available for analysis.
Role
Completes the fabric structural specification by determining yarn count from physical fabric when purchase documentation or specification sheets are unavailable, enabling the complete reconstruction of fabric construction data for fabric reproduction, costing, and quality verification purposes, with yarn count determination being a routine analytical requirement in fabric testing laboratories handling samples from customers requiring fabric specification from physical samples without accompanying technical data.