Application of stitch-bonded multi-plies made by using the extended warp-knitting process: influence of pattern and knitting yarn tension on the geometry of the textile fabric

摘要

This paper is part of a series dealing with the application of the extended warp-knitting process for the production of textile fabrics for composites. Further studies will examine the properties of thermoplastic composites and textile reinforced concrete made of stitch-bonded multi-plies. It is known that knitting yarn pattern and knitting yarn tension during fabric production affect the properties of stitch-bonded multi-plies and composites made thereof. This paper describes the effects of those two parameters on the fabric as produced with the extended stitch-bonding process. It can be shown in which way pattern and yarn tension can be chosen to reduce compression of the warp threads in the fabric as well as to avoid unwanted displacement of threads caused by handling.