The output from the draw frame is fed into the roving frame (also called ‘speed frame or simplex machine or flyer frame‘) where the linear density of sliver is reduced by drafting and the resultant product is called the roving. After the drafting operation, the roving is wound on the bobbin. During winding, a little amount of twist is imparted to the roving.
Yarn Engineering
Effect of Twist on Yarn and Fabric Properties
The twist in yarns can be caused to affect the properties of the fabric in which the yarns are included.When yarns are incorporated in a fabric such that adjacent sets of yarn vary in the direction of twist, different effects like the shade effect, stripe effect etc. can be produced because of light reflecting from two sets of yarns.
Tensile Testing Terms and Tensile Testing Terms Definitions
0shares Facebook Twitter LinkedIn Tumblr Digg Print Reddit Weibo Xing Blogger MySpace Tensile Testing Terms and Tensile Testing Terms Definitions Engineering stress: Engineering stress can be equated to the load applied per original cross sectional area. True stress: True stress can be equated to the load applied per instantaneous (actual) cross sectional area. Unit: […]
Tensile properties of Textile Fibers
When an external force is applied to a fiber, it is balanced by the internal force development in the molecular structure of the fiber. By increasing the stresses, material will deform and follow the load-elongation/stress –strain curve.
Carding Machine Specification – spinning machine
0shares Facebook Twitter LinkedIn Tumblr Digg Print Reddit Weibo Xing Blogger MySpace Spinning Machine – Carding Machine Specification : SPECIFICATION OF CARDING MACHINE: working width: 1000-1020 mm taker-in diameter: 250-350 mm, RPM: 500-1300 cylinder diameter: 1016-1290 mm, RPM: 200-800 doffer diameter: 500-700 mm, RPM: 30-100 no of flats: 100-112 […]