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...

The generation of a sub-diffraction optical hollow ring is of great interest in various applications, such as optical microscopy, optical tweezers, and nanolithography. Azimuthally polarized light is a good candidate for creating an optical hollow ring structure. Various of methods have been proposed theoretically for generation of sub-wavelength hollow ring by focusing azimuthally polarized li...

One of the main reasons for nonlinearity tension diagrams cotton yarns is variability their moduli elasticity and plasticity under strain. The changes in strain obtained from tensile confirm this. curve has ten parameters, values which depend on method yarn manufacture rate. Based results processing yarn, by carded combed systems ring rotor spinning (CD-carded ring-spun, OE-carded rotor-spun, C...

This research study experimentally analyzed the effect of ring and rotor yarns which are 100% cotton spun yarn with 30s Ne count on physical comfort characteristics single jersey, rib, interlock knitted fabrics. The such as fabric Thickness, Tightness factor, Bursting strength, Abrasion resistance, Pilling behavior were studied according to ASTM Standard statistically using Minitab software ANO...

This Letter reports the first observations of an anomalous hollow electron beam in the Duke storage ring. Created by exciting the single-bunch beam in a lattice with a negative chromaticity, the hollow beam consists of a solid core inside and a large ring outside. We report the detailed measurements of the hollow beam phenomenon, including its distinct image pattern, spectrum signature, and its...

This study was carried out to determine the best ring size for a certain yarn count. In frame with three separate rings of varying sizes, 20s/1 kW created. The spinning method used same speed, twist, traveller, and spacer but distinct diameters 38 mm (Ring- A), 40 B), 42 C). Then, under testing conditions, ten samples each were examined by Uster Evenness Tester (UT-6) compared one. “Ring- C″ pr...

The essence of the pneumo-mechanical spinning method lies in transformation tape into a discrete stream fibers, formation wedge-shaped ribbon from this form an open end groove chamber and yarn by torsion, which is removed wound bobbin. Yarn obtained on rotor machine differs structure ring machines, it has lower breaking load produced with higher filling twist.

Fibre blend should be composed regarding the requirements and allowable price of the textile end product. Using the appropriate raw material and optimised fibre blends we can influence the mechanical properties and regularity of a yarn as well as significantly reduce the number of yarn faults. The contribution presents a study of the influence of quality characteristics of cotton fibres and con...

The article is devoted to the study of properties yarn obtained by methods ring and rotor spinning, for twisted yarn, produced on a VTS-09 double twist machine made Volkmann (Germany). Experiments were carried out two typesof spinning yarns with counts Ne 20/2 12/2 in existing design (control) new design, flexible element equal tension intensifier compared effects resulting quality parameters. ...