Elastic warp-knitted composite fabrics with far-infrared emissivity and an anion-releasing property were prepared using bamboo charcoal (BC), copper (Cu), and phase-change material (PCM). The functional composite fabric, which was composed of self-made complex yarns with various twisting degrees and material composition, were created using a rotor twister and ring-spinning technique. The fabric...

Self-reinforced poly(ethylene terephthalate) (PET) composites prepared by using a modified film-stacking technique were examined in this study. The starting materials included a high tenacity PET yarn (reinforcement) and a low melting temperature biodegradable polyester resin (matrix), both of which differ in their melting temperatures with a value of 56°C. This experiment produced composite sh...

The chemical recycling of hemp fabric into high-tenacity man-made cellulose fibers was demonstrated. laundered 25 and 50 times to mimic the wear cycles post-consumer textile waste. Despite launderings, molar mass material still too high for via dry-jet-wet spinning. Thus, fabrics were treated with an aqueous sulfuric acid solution adjust intrinsic viscosity targeted level 400–500 ml/g. hydrolyz...

Generally, ring spun yarns are manufactured from roving which is produced by frame. In this paper, an experiment has been done producing cotton yarn directly finisher drawn sliver eliminating the Total 3 types of with various linear density 8 Ne, 10 Ne & 12 were using a frame and without next step, physical mechanical properties those including unevenness, imperfections, hairiness tenacity inve...

This work reports yarn pull-out studies of commercially available Kevlar® KM2+ individual yarns coated with metallic layers (copper, aluminum, aluminum nitride and silver) via a directed vapor deposition process. The uncoated control metal-coated are hand-woven into fabric swatches for quasi-static experiments. To perform these experiments, fixture is custom-designed fabricated to apply transve...

The main goals of this study were to determine the effect three yarn structural factors (yarn count, cross section and spandex ratio) their interactions on tensile breaking extension properties behavior spandex/polyester spun yarns respective woven fabrics. Moreover, stress-strain curves plotted yield points corresponding (toughness, stiffness Initial Young Modulus) derived. association between...

Cotton morphology and mechanism of fibre tension was assessed by making use light microscopy. In essence, a solution prepared consisting ZnCl2 (100 g), ki (32 water (34 ml) I2(TILL SATURETION). This used asa swelling agent for cotton during microscopic examination. It found that the primary wall takes spiral shape, spherical or combination both whereas secondary appears as beads. The shape size...

In this paper we discuss about tenacity and its properties in stability calculation. We indicate relationships between tenacity and connectivity, tenacity and binding number, tenacity and toughness. We also give good lower and upper bounds for tenacity.

in this paper we discuss about tenacity and its properties in stability calculation. we indicate relationships between tenacity and connectivity, tenacity and binding number, tenacity and toughness. we also give good lower and upper bounds for tenacity.

The problem of yarn breakage during spinning is quite serious, but it is difficult to predict the number of yarn breakages, because the tension and strength of the yarn always vary. The author has used simple mathematical models of the variation of the tension and the strength of the yarn, and calculated the probability of yarn breakages. The result has shown that the variation of the yarn stre...