relationship between dry-relaxed warp-knitted fabric structure and curling distance

• Published in: Journal of the Textile Institute Vol. 103; no. 5; pp. 523 - 531
• Main Authors: Ajeli, S, Minapoor, Sh
• Format: Publication
• Language: English
• Published: Routledge 2012
• Subjects: fabrics; image analysis

This study provides us information about relationship between curling and knitted structure and density of two-guide bar warp-knitted fabrics. Five standard warp-knitted fabrics are produced with three densities (Tricot, Locknit, three-needle Satin, Reveres Locknit and three-needle Sharkskin). Certain cut lengths of sample fabrics in both wale and course direction are analyzed through image processing to define curling value. A mechanical model, a function of fabric structure and yarn parameters, is also suggested to predict the curling force. The results of experimental and theoretical results show a greater curling value for course-wise cut in comparison to that of wale-wise in all warp-knitted structures and densities. The lowest curling value is found for three-needle Sharkskin structure in both directions and all densities.