Fatigue of Ring Spinning Yarns and Open-End Spinning Yarns by Cyclic Tension

Quality of Yarns Produced by Japanese Open-End BD-200 Spinning Machines and of Final Products

Yarns produced by Japanese Open-end BD-200 spinning machines give these major advantages: (1) They are somewhat stronger than yarns spun by Czecho BD-200's. (2) They are almost as strong as yarns spun by ring spinning machines. This strength is obtainable without raising the cost of raw cotton if the right fore-spinning processes and spinning conditions are used. (3) They have maximum strength ...

Predicting the Hairiness of Cotton Rotor Spinning Yarns by Artificial Intelligence

Spinning yarns around the digital fire: Storytelling and dialogue among youth on the Internet

This article explores the importance of dialogue, storytelling and collaboration in children’s learning, followed by examples from message boards, webblogs, and instant messaging software (IM) that support learning through storytelling. Children’s verbal and iconic literacy, as well as digital fluency is investigated along with peer collaboration and empowering children’s voices through Interne...

Production of Core Spun Yarn with Ring & Siro Spinning System

A common problem in production of core–spun yarns on the Ring spinning frame is the slippage of the staple fibers as sheath fibers relative to the core. This effect is known as ‘strip-back’ or barberpole. This problem may lead to an incomplete core coverage and results in end–breaks in subsequent processing. In order to avoid this problem, in the present work, core spun yarns (acrylic sheath fi...

Endurance behavior of conductive yarns

Various companies are industrializing ‘photonic’ textiles for medical and architectural applications. Here we report reliability testing of photonic textiles based on woven textiles with integrated copper-based conductive yarns used to drive attached LEDs. These textiles were subjected to cyclic mechanical stress tests and the cycle life was analyzed in terms of fatigue. Results show that failu...