Studying the fiber positioning in yarn structure is essential point to understand different characteristics of yarns that counted as alternatives each other. This study explores packing densities single-ply, two-ply and Siro-spun spun have been stated alternative types considering production method or structure. In study, Modal, Tencel, polyethylene teraphtalete, cotton fibers represent micro, ...

Regarding the importance of ring spinning method among spinning systems, great potentials exist for research about on the improvement of the quality and properties of ring spun yarn. This study aims to improve yarn quality by changing the shape and dimensions of spinning triangle through forming a groove in the middle zone of the front darfting roller with a curvature of 5 to 7 mm. For the to...

air-jet weaving is an advanced weaving method with high efficiency and productivity. it is one of the most widely used methods of weaving in the world. in air-jet filling insertion, the motion of weft yarn is caused by friction between weft yarn and air blown through nozzle. after declamping and subjecting the yarn to air stream, its motion is not active but very complicated and influenced by s...

The torque in single-spun yarns is an inherent property of the twisting and bending of staple fibres during the formation of yarn combined with the effect of applied tension on the yarn. The consequences of yarn torque are well known and are widely observed as yarn instability, e.g., yarn rotation under tension; local snarling and entanglement at low loads, and as distortion in fabric, i.e., ed...

Abstract Consumer choice and behavior are changing focusing on comfortable clothing along with fitting. Elastic yarn or fabric is necessary to achieve this comfortableness. By making elastic using material in production, cloths produced proper stretchability recovery. For that, core-spun was used, but due a lack of recovery performance, dual has been developed. Different elastane ratios, linear...

Piezoelectric polymer fibers offer a fundamental element in intelligent fabrics with their shape adaptability and energy-conversion capability for wearable activity health monitoring applications. Nonetheless, realizing high-performance smart faces technical challenge due to the relatively low piezoelectric performance. Here, we demonstrate yarns simultaneously equipped structural robustness me...

This paper presents a study to identify the type and location of yarn periodical errors applying three different signal processing approaches based on FFT – Fast Fourier Transform, FWHT-Fast Walsh-Hadamard Transform and FDFI – Fast Impulse Frequency Determination. The errors determination is applied for the mass measurement of yarn using a capacitive sensor and for the measurement of yarn diame...