Alternative Fadentransportsysteme für die Herstellung textiler Flächen

  • Alternative methods of yarn transport for the manufacturing of fabrics

Jordan, Jan Vincent; Gries, Thomas (Thesis advisor); Václavíc, Miroslav (Thesis advisor)

Aachen : Shaker Verlag (2020)
Book, Dissertation / PhD Thesis

In: Textiltechnik/Textile technology
Page(s)/Article-Nr.: II, 164 Seiten : Illustrationen, Diagramme

Dissertation, RWTH Aachen University, 2020

Abstract

In this paper an overview of the relationships between the characteristics of woven fabrics and biaxial non crimp fabrics and their manufacturing processes is presented. The focus here is on the consideration of the dependencies with reference to the weft insertion processes. The selection of the weft insertion process is a decisive factor in determining the production characteristics and product properties. However, due to the diversity of the textile process chain, especially in the field of technical textiles, it is not possible to define generally applicable criteria for evaluating the suitability of a weft insertion process. Rather, textile manufacturers must decide which critical success factors are relevant for them in accordance with their strategic orientation, product portfolio and clientele. Accordingly, textile manufacturers must prioritize the following critical success factors. The critical success factors related to weft insertion processes are "product and process quality", "resource efficiency", "productivity" and "flexibility". By discussing selected product examples and looking at available weft insertion processes, the interrelationships with potential critical success factors can be identified. This examination shows that there is still potential to meet the critical success factors for specific articles to a higher degree. Theses can be derived which offer orientation for the selection of a weft insertion process. However, these theses can also be used as a basis to compensate for existing limitations in the development of alternative weft insertion processes. On the basis of these theses, an alternative procedure for shuttle-less weft insertion in weaving as well as an alternative shuttle weaving procedure each based on actively guided permanent magnets were developed. Both processes achieved a technology readiness level (TRL) of 3 and are each suitable for particularly large weaving widths. A further alternative weft insertion process was developed for the production of weft knitted fabrics and stitch-bonded fabrics with weft insertion. This process achieved a technology readiness level (TRL) of 6 and is not limited in its article ranges.

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