Source: TextileReview
Theoritical Concept of DRF Yarn Production
In the figure a three dimensional Cartesian representing the yarnaxis lies along OZ (Perpendicular to the plane of the paper). The rotatingvector OB advancing
generates the helix representing the strand axis at aconstant rate along the two-fold yarn axis
The point P is the position of a fiber on the surface of thestrand so that P is defined by the angle
PBD = Ф
Treloat shows that the total torsion of eachstrand (sp) as it lies in the two- fold yarns consists of the some of thetorsion relative to the principal plane of curvature of the strand axis and therate of rotation of the plane of curvature of the strand axis and the rate ofrotation of the plane of curvature and that the total torsion
About the Authors:
Dr. Anita Nishkam is Director,Lokesh Shukla is associated with Dept. of Textile Technology Govt.Central Textile Institute ,Kanpur and Mrs. Manisha Shukla ,is associatedwith Mahila Maha Vidyalaya Kanpur
Originally published in Textile Review: June 2010
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