Warp Knitted Fabrics Construction

by Yordan Kyosev

Overview

The aim of this book is to provide the background of the warp knitting patterning with a large amount of simulated 3D images of the structures, corresponding to the modern available tools for this. The warp knitted structures can have very complex architectures and very limited understanding exists on how they are built. The pattern book will allow

Product Details

ISBN-13:	9780429532689
Publisher:	CRC Press
Publication date:	07/30/2019
Sold by:	Barnes & Noble
Format:	eBook
Pages:	344
File size:	54 MB
Note:	This product may take a few minutes to download.

About the Author

Wilfried Renkens has about 35 years experience in the development of electronically and later computer controlled systems for warp knitting machines. Since 2006 he is active developer of algorithms for 3D visualization of warp knitted structures together with Yordan Kyosev. First industrial software for 3D visualization was implemented by Renkens & Kyosev and presented during ITMA 2007 in Munich as a module of the Software WarpKnit for Karl Mayer, on that time from its subcontractor ALC Computertechnik in Aachen (today its partial successor is the company Texion). Both authors have published journal papers, one book chapter and several conference presentations about the modelling and visualisation of warp knitted structures. The team will be strengthened with Yanping Liu, who has worked for several years in the modelling of complex warp knitted structures with Finite Element Method, and is also performing a lot of experimental investigations. He has published several journal papers about the properties of spacer and other warp knitted fabrics. Matthias Aurich has more than 10 years practical experience in the warp knitting industry passing all steps from assistant of the machine operator, product developer, to head of research and development and manager. Parallel to the job he completed his B.Sc and M.Sc. degrees at the Niederrhein University, where he performed several studies about special pattern and special warp knitting machines.

Table of Contents

Background. Short introduction in the warp knitting fabric production. Single needle bed machines. Single guide bar fabrics. Two bar fabrics (Full set threading). Two bar Fabrics (Part set threading). Three and four bar fabrics. Laid-in Fabrics. Cut Presser Fabrics and Knock-off Laps. Raschel Laces. Fall plate Fabrics. Double needle bed (Raschel) machines. Background information. Bar arrangements, types of bars. Two bar fabrics. Multiple bar fabrics. Spacer fabrics. Jacquard warp knitted structures. Fundamentals - process, guide arrangement, threading, codign. Single needle bed jacquard fabrics. Double needle bed jacquard fabrics. Engineering design of warp knitted structures. Geometrical models for yarn axis coordinates - state of the art, principles, limitations. Theoretical calculations for warp knitted structures - run-in per guide bar, specific weight after production and after shrinkage and stretch - theory, practical examples, comparison between the theoretical models calculated with TexMind Warp Knitting Editor and real samples. Modelling strategies for simulation of the mechanical behavior. Case studies of numerical investigation of the tensile and compression behavior. Quality insurance aspects - related yarn properties, fabric defects, fabric properties