Engineering Techniques Of Ring Spinning

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.

This book provides an invaluable single source of information on the advances in yarn spinning technologies. Advanced spinning systems are described and comparisons are made of the properties of the yarns produced, and resultant finished products, with those from conventional systems. Part one provides an introduction to yarn fibre spinning and structure. Chapters discuss the principles of ring spinning and open-end spinning of yarns. Yarn structure and properties from different spinning techniques and yarn structural requirements for knitted and woven fabrics are also examined. Part two covers advances in particular yarn spinning technologies. Topics range from siro spinning to compact spinning technology and air-jet spinning. Final chapters explore how to minimise fibre damage which occur during spinning and the use of spin finishes for textiles. With its distinguished editor and array of international contributors, Advances in yarn spinning technology is an important text for spinners, yarn manufacturers and fabric producers, as well as researchers, technicians, engineers and technologists in this sector of the textile industry. Documents advances in spinning technologies and presents comparisons between systems Assesses particular textile spinning technologies with specific chapters focusing on siro, compact, rotor, friction and air-jet spinning Reviews measures to minimise fibre damage caused by spinning are investigated with specific relevance to rotor and friction spinning

The aim of this study is to investigate the effects of finisher drawframe storage variables such as can-spring stiffness, sliver deposition rate and sliver coils position on the quality characteristics of the combed ring-spun yarn. The research design also includes the effect of sliver storage time on the quality of stored sliver and subsequently on roving and yarn produced on speedframe and ringframe respectively. The critical role of storage can-spring parameters on combed sliver, roving and yarn quality has been frequently discussed in spinning preparatory literature. However, a clear understanding of the nature of relationships, as mentioned above, is not yet well established by the previous works. So, there is a need to study the underlying factors at a deeper level that may provide further insight into ways to control ring yarn quality. Therefore, the present investigations were carried out to observe the effects of uncommon process parameters namely can-spring stiffness, delivery rate and sliver coils position at post comber drawing stage on sliver, roving and yarn quality when slivers were allowed to feed without any storage time and after 8 hours storage time. The research plan was developed by implementing a three factor three level Box-Behnken design of experiment. The effects of aforementioned variables were studied on combed yarn unevenness properties (U%, CVm % and Imperfections), tensile properties (yarn tenacity and breaking elongation) and S3 hairiness. The results showed that the effects of can-spring stiffness and sliver coils position are significant on yarn evenness, CVm%, imperfections, tenacity and S3 hairiness. However, the combed yarn quality parameters did not show any significant relationships with the post combing drawing delivery rate. It was observed that the combed yarn produced from bottom position sliver coils using older can-spring showed less even yarn with improved imperfection, having less strength and more hairiness. The combed yarn quality further deteriorates on allowing 8 hours of sliver storage time. It was found that the bottom sliver coils experience the highest compressive forces compared to other sliver coils position and adjacent sliver coils stickiness was observed which result in sliver stretching and failure at the time of processing on speedframe. Also, older can- spring of reduced spring stiffness result in buckling which leads to stored sliver contact with rough sidewalls caused weak & hairy sliver. The combed yarn samples produced from such storage cans leads to uneven yarn with more imperfections, weaker and hairy yarn structure. The contribution of sliver coils position was found highest followed by can-spring stiffness in deciding combed yarn quality parameters in the current study. However, the effect of finisher drawframe delivery speed on yarn quality parameters was found minimal. Apart from this, an attempt has been made to understand the effect of dynamics of the can-spring mechanism on combed sliver handling at the time of sliver deposition at drawframe through bond graph modeling approach. The behaviour of the can-spring used for combed sliver storage was found linear as expected. It was observed that bond graph modeling of can-spring mechanism provides us information on more states in a systematic and algorithmic manner compared to any other technique. Linear momentum, linear displacement of top plate, force experienced by the combed sliver and load versus displacement response of the mechanism was also studied. However, the more rigorous study is required to study the accurate dynamics of such precise systems because the force and the stresses experienced by the combed sliver are too low due to very low inter-fiber cohesion.

Advances in Modeling and Simulation in Textile Engineering: New Concepts, Methods, and Applications explains the advanced principles and techniques that can be used to solve textile engineering problems using numerical modeling and simulation. The book draws on innovative research and industry practice to explain methods for the modeling of all of these processes, helping readers apply computational power to more areas of textile engineering. Experimental results are presented and linked closely to processes and methods of implementation. Diverse concepts such as heat transfer, fluid dynamics, three-dimensional motion, and multi-phase flow are addressed. Finally, tools, theoretical principles, and numerical models are extensively covered. Textile engineering involves complex processes which are not easily expressed numerically or simulated, such as fiber motion simulation, yarn to fiber formation, melt spinning technology, optimization of yarn production, textile machinery design and optimization, and modeling of textile/fabric reinforcements. Provides new approaches and techniques to simulate a wide range of textile processes from geometry to manufacturing Includes coverage of detailed mathematical methods for textiles, including neural networks, genetic algorithms, and the finite element method Addresses modeling techniques for many different phenomena, including heat transfer, fluid dynamics and multi-phase flow

Mechatronic Design in Textile Engineering contains a selection of contributions to the NATO ASI which took place in April 1992, in Turkey. In addition to the introductory sections on the mechatronics concept and design methodology and the impact of advance in technology on the mechatronics concept; the importance of the mechatronic design in the textile industries is highlighted, together with many examples. These include: mechatronics in the design of textile machinery, such as 3-D braiding; weaving and LAN systems for weaving; yarn tension compensation; texturing; spinning: measurement automation and diagnosis, knowledge-based expert systems; automated garment manufacture and assembly; and apparel manufacture. The book is unique in that it brings together many applications of mechatronics in textile machinery and system design. In that respect it will serve as a reference book for designers as well as for students of textile technology and engineering.

This volume discusses: (1) the treatment of hazardous sludge, wastewater, textile effluent, contaminated groundwater, laboratory waste, toxic dye, heavy metals, acid mine drainage and palm oil effluent; (2) the technologies of stabilization, solidification, natural coagulation-flocculation, river catchment control and mitigation, dredging and mining operations, and (3) the management of acid mines, laboratories, nano pollutants and plant effluents.

The need for manufacturers to make new products, diversify existing products and remain globally competitive is increasing. Engineering textiles: integrating the design and manufacture of textile products covers many aspects of product development and design conceptualization for both technical and traditional textiles. It also discusses several approaches to the fiber-to-fabric engineering of various textile products. Part one discusses fiber-to-fabric engineering in the context of product development and design of fiber-based products. Part two discusses the different types of fibers, yarns and fabrics suitable for the production of traditional and function-focused textiles. Chapters include key topics such as structure, characteristics and the design of textiles. Part three concludes with a discussion of the development of specific fibre applications, ranging from traditional textile products through to technical textiles such as transport and medical applications. Written by a highly distinguished author, this book is a pioneering guide to textile product design and development for a broad spectrum of readers, ranging from engineers in all fields, including textiles, material, mechanical, electrical, civil, chemical, polymer and fiber engineers. It is also suitable for textile technologists, fiber scientists and for those involved in research and development of both traditional and new-generation textile products. Reviews aspects of product development and design conceptualisation for both technical and traditional textiles Analyses material selection including structure and characteristics of various fibres Examines the development of fibrous products for transportation, medical and protection applications

With the growth of applications of textiles in various multidisciplinary domains e.g., clothing, home textiles, and technical applications, there is a need of book covering fundamentals of textiles. This introductory-level textbook is geared toward the introduction of textile engineering. This book is beneficial for all readers who are going to start their career in textiles or related domains or are going to start an engineering degree in textiles.