FALSE-TWIST YARNS—THE RELATIONSHIP BETWEEN YARN AND FABRIC PROPERTIES
L. Cotton, M. G. Bladon
Abstract
L. Cotton, M. G. Bladon
Abstract
The paper describes the changes in yarn and fabric properties which occur when a Courtolon false-twist bulked yarn is progressively modified from a high to a low-stretch yarn. It is shown that crimp rigidity is an adequate single parameter to explain the differences which arise in fabric geometry when knitting such yarns as compared with non-stretch yarns. Differences in handle and texture are also discussed in relation to crimp rigidity. A comment is made on the finishing of such yarns. Finally, a broad survey of yarn type in relation to end use is given. It is concluded that a medium-stretch yarn is the most versatile in knitted outerwear with a low-stretch yarn as a useful addition in more limited applications.
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The paper describes the changes in yarn and fabric properties which occur when a Courtolon false-twist bulked yarn is progressively modified from a high to a low-stretch yarn. It is shown that crimp rigidity is an adequate single parameter to explain the differences which arise in fabric geometry when knitting such yarns as compared with non-stretch yarns. Differences in handle and texture are also discussed in relation to crimp rigidity. A comment is made on the finishing of such yarns. Finally, a broad survey of yarn type in relation to end use is given. It is concluded that a medium-stretch yarn is the most versatile in knitted outerwear with a low-stretch yarn as a useful addition in more limited applications.
Key concepts: Yarn, Crimp, Twist, Rigidity (electromagnetism), Composite material, Materials science, Mathematics, Geometry