Functionalization of two-layer laminates made of multilayer nonwovens and 3D knitted fabrics

Purpose This paper aims to examine the influence of 3D knitted fabrics and multilayer nonwovens on the functionality of a two-layer laminate produced by dry lamination. The laminates produced are intended for use as car seat covers. Design/methodology/approach In the methodological part, the research focuses on mechanical properties, permeability properties and thermal conductivity. Findings It was found that 3D textiles significantly increase the bending rigidity, permeability to water vapour and air and thermal conductivity of the two-layer laminate. Conversely, 3D textiles improve strength under compressive load and reduce the delamination force. Originality/value Important findings of the research are that fibres and their orientation, the density of the yarns of the fabric and thus the number of contact points between the layers, as well as the distribution of the binder between the two layers, have a significant influence on the functionality of two-layer laminates.