Most softening agents, such as rinse cycle fabric softeners, used by consumers at home contain cationic surfactants that have two long alkyl chains as their main component. The softening mechanism on fibers, especially cotton, has not yet been scientifically established, despite the market prevalence of fabric softeners for decades. One explanation for the softening effect is that the friction ...

Aiming at demonstrating the potential of unidirectional natural fiber-reinforced thermoplastic composites in structural applications, textile flax yarn/thermoplastic polyester composites with variable fiber volume fractions have been manufactured by a filament-winding process followed by a vacuum-assisted compression molding process. The microstructure of the composites shows that the flax fibe...

Taguchi Method is explained in brief and one of the textile processes, called spinning process, is optimised by using Taguchi method for manufacturing optimum packing density of different technologies yarns. The effect of process variables like: lap hank, card draft, draft/doublings and drafts at speed frame, ring frame, rotor and air-jet spinning machine on packing density parameters of respec...

Olefin fibers, also called polyolefin fibers, are defined as manufactured fibers in which the fiber-forming substance is a synthetic polymer of at least 85 wt% ethylene, propylene, or other olefin units (1). Several olefin polymers are capable of forming fibers, but only polypropylene [9003-07-0] (PP) and, to a much lesser extent, polyethylene [9002-88-4] (PE) are of practical importance. Olefi...

The problem of a rotating transported thread or yarn occurs in textile applications such as high-speed spinning and unwinding from a cylindrical package. In case of low tension the yarn is known to buckle and fly out under the action of centrifugal forces. The motion initially appears fixed when viewed from a rotating coordinate frame and is known as ballooning (see [1], which also contains ref...

ON THE MECHANICS OF TWIST INSERTION by ALY H. M. EL-SHIEKH Submitted to the Department of Mechanical Engineering Fibers and Polymers Division, on May 14, 1965 in Partial Fulfillment of the Requirements for the Degree of Doctor of Science in Mechanical Engineering This investigation is directed toward an improved understanding of the mechanisms and actions taking place in the textile twisting pr...

Modeling of yarn and fiber properties has been a popular topic in the field of textile engineering in recent decades. The common method for fitting models has been to use classical regression analysis, based on the assumptions of data crispness and deterministic relations among variables. However, in modeling practical systems such as cotton spinning, the above assumptions may not hold true. Pr...