Investigation of knitted fabrics and the deformation of their assemblies by the Y-shaped specimen method

Abstract

Textile fabric deformability during garment wear is a very important property as it influences performance conditions, the wearer’s comfort and the aesthetic view of the garment. Deformation of material in the garment depends on the clothing construction, anatomical features and physical activity of the wearer and garment fit. This paper presents an investigation of knitted fabrics and the deformation of their assembly peculiarities, considering the complex behavior of textile materials during wear using the Y-shaped specimen method. The fabric element partially experienced force affects in respective garment areas. In this case, several deformation types appear at the same type. In our research the special shaped specimen of form “Y” was used to performing the uniaxial tensile test to simulate this phenomenon. According to this method, longitudinal, transversal and angular characteristics describing the deformation of textile materials and their stitched systems were determined. It was found that after the extension indicator of angular deformation has changed the most, the amount of change reached up to 70%. In the Y-shaped knitted specimens, the seam significantly influences the size of the tensile force. Also, the changes of angle indicator, when the specimens are joined with seams, are obvious and reach 50%.