Abstract:

Herein, we are using polyamide 66 fiber to develop high performance and high quality denim fabric. Using viscose as the outer fiber, polyamide 66 or spandex as the core yarn to make 36.4 and 28.0 tex core-spun yarn as the weft yarn, pure cotton yarn of 36.4 and 28.0 tex as the warp yarn, a rapier loom is used to interweave to make the denim fabric. The strength, wear resistance, elastic recovery, crease recovery, and bending properties of denim fabrics woven from 6 kinds of fabrics waved by polyamide 66 core-spun yarns and spandex core-spun yarns were tested. Through comparative analysis, it is found that the elasticity of polyamide 66 core-spun denim is as good as that of spandex core-spun denim, while its strength and softness are better. Viscose/polyamide 66 (3.33 tex/10 F) core-spun fabric is stronger, more resilient, and softer than viscose/polyamide 66 (3.33 tex/34 F) fabric. Meanwhile, fabrics woven with 36.4 tex yarn have better strength, elasticity, and crease recovery, while fabrics woven with 28.0 tex yarn are softer.

Key words: :polyamide 66 core-spun yarn, spandex core spun yarn, denim fabric, tensile property, elastic resilience, wrinkle recovery, bending properties