Author: Gwynfryn John MorrisPublisher:
ISBN:
Category :
Languages : de
Pages :
Book Description
˜Anœ Investigation of yarn tension and balloon shape in uptwisting
Author: Gwynfryn John MorrisAn investigation of yarn tensio and balloon shape in utwisting
Author: Gwynfryn John MorrisPublisher:
ISBN:
Category :
Languages : en
Pages : 144
Book Description
Engineering Fundamentals of Ring Spinning/Twisting, Over-end Unwinding and Two-for-One Twisting in Textile Processes
Author: Subhash BatraPublisher: DEStech Publications, Inc
ISBN: 1605951722
Category : Technology & Engineering
Languages : en
Pages : 186
Book Description
Essential theory for understanding and modifying dynamic elements of high-speed yarn spinning, unwinding and twistingTroubleshoot and correct problems in fibers and machinery caused by very rapid throughput Using basic physics and engineering principles, this volume analyzes dynamic forces in three processes critical for textile production: O-ring spinning, unwinding and twisting. The book offers a review of approaches for modeling the processes and discusses the advantages and disadvantages of each. Detailed analyses are given for the dynamics of ballooning yarns, instabilities due to acceleration, and the many interacting parameters that affect tension. The theory presented is linked to practical questions such as how to prevent broken yarns and reduce equipment downtime with an emphasis on ways to improve process design and achieve higher throughput. This technical book furnishes the calculations needed to understand and optimize a number of textile production processes, including texturing and warping.
A Novel Method for Dynamic Yarn Tension Measurement and Control in Direct Cabling Process
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Yarn tension control is an important parameter for quality and efficiency in textile processes. It has a significant influence on productivity in various processes such as winding, twisting and cabling. There have been several articles based on theoretical models, which discuss the effect of various factors on yarn tension variation in direct cabling, but very few have addressed the possibility of measuring and controlling it practically while the yarn is being twisted. Quality control system manufacturers like TEMCO (Textile Machinery Components) and BTSR (Best Technologies Studies and Research) have come up with smart tension scanning systems that perform online tension monitoring in various textile machines. However, these systems cannot be installed on the direct cabling machine due to their size and cost. The fact that the supply yarn package is housed inside the rotating yarn balloon restrains any wired tension sensor from performing online measurement. As such, there is an immediate need for using a wireless sensing device to perform online yarn tension measurement and execute a control mechanism that will control yarn tension adaptively. The objective of this research is to demonstrate the possibility of applying MEMS (MicroElectroMechanical Systems) technology with radio frequency (RF) transmission to effectively carry out dynamic online measurement for the control of yarn tension. A novel technique to achieve online control using the measured real-time data has been implemented. A device that ensures uniform tension in the yarn has been designed and developed. Ways of measuring twist in the cabled yarn using optical micrometers and digital imaging systems have also been explored, because variation in tension manifests variation in twist. Using the twist values obtained from these sensors, the individual tensions in the component yarns can be adjusted, resulting in the formation of a uniform cabled yarn with equal lengths of both component yarns.
Textile Technology Digest
Author: Applied Mechanics Reviews
Author: Journal of East China Institute of Textile Science and Technology
Author: Wool
Author: W S SimpsonPublisher: Elsevier
ISBN: 1855737647
Category : Technology & Engineering
Languages : en
Pages : 383
Book Description
In this book leading experts within the industry come together to give the first comprehensive treatments of the science and technology of wool to be published in over 20 years.The wool industry has been through a period of substantial change, with a major overhaul of trading methods, exciting innovations in wool-scouring and wool processing methods, and the development of modern technology reflecting a strong emphasis on environmental concerns and energy conservation. Research into wool science has continued to grow, and the technologist now has a better understanding of both the chemical and the physical properties of wool. Modern instruments can determine the structural differences between several types of wool proteins and how they interact, and this knowledge is leading to a deeper understanding of what can be done to create better products and more effective processes.Wool: Science and technology is an essential reference resource for anyone involved in the worldwide wool industry whether as processor, manufacturer, or user for the garment and carpets trades. - First new comprehensive treatment of wool for over 20 years - Covers all aspects of processing, treatment and manufacture - Contributions form distinguished experts worldwide
Engineering Techniques of Ring Spinning
Author: Tasnim N. ShaikhPublisher: CRC Press
ISBN: 9385059564
Category : Technology & Engineering
Languages : en
Pages : 222
Book Description
Ring spinning is an age-old technology used in the process of fibres to yarn conversion. Its versatility in dealing with a wide range of materials in terms of type, properties and even as an individual or blend is unbeaten. This book provides a platform for critically evaluating various engineering and technical changes undergone in this legendary process and the scientific approach lying behind these changes.
Author: