Wydział Technologii Materiałowych i Wzornictwa Tekstyliów / Faculty of Material Technologies and Textile Design / W4

Stały URI zbioruhttp://hdl.handle.net/11652/4

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  • Pozycja
    Spatial structure`s analysis of 3D knitted spacer fabric
    (Wydawnictwo Politechniki Łódzkiej, 2022) Walkowska, Aleksandra; Mikołajczyk, Zbigniew
    The subject of this paper concerns an identification of a spatial structure of a warp-knitted spacer fabric, paying particular attention to the structure of the inner layer. The transverse elasticity of the knitted fabric, both in static and dynamic terms, will depend on the properties of the monofilament, its shape and Young's modulus. The environments of OptaView and Inventor programs were used in the research. Analytical activities were selected that enabled the creation of theoretical models. The empirical verification showed the compliance of the model objects with the actual shape of the threads. It has been proved that the developed methodology can be used in the description of the spatial structure of the spacer knitted fabric as an indispensable element in the numerical experiment of the mechanical properties of the knitted fabric.
  • Pozycja
    Technology and Properties of Distance Five-layered Double-Weft-Knitted Fabrics with Elastomeric Threads
    (Instytut Biopolimerów i Włókien Chemicznych (IBWCh) , Łódź, Polska, 2014) Włodarczyk, Bogdan; Kowalski, Krzysztof
    This paper presents the concept of forming distance weft-knitted fabrics with five knitted layers in their structure. The knitted fabrics developed have a relatively large thickness in relation to the needle pitch and distance between the needle beds of the knitting machine on which they were formed. The effect described was obtained by combining three knitted layers with the use of different reports and the number of monofilament threads knitted-in, and by modifying the knitted layers with elastomer threads. The distance knitted fabrics designed and produced for potential use as preforms for composites and parts protecting against an impact were tested and analysed with respect to their structural parameters.