The evaluation of fused knitted systems stability

Abstract

The aim of the presented research is to apply the method of punch deformation for the simulation of textile systems behaviour in serve conditions and on the basis of it create original method and find new criteria for shape stability evaluation. The research was done with the help of three devices of punch loading originally created at Kaunas University of Technology (Lithuania), which were attached to the standard tensile testing machine. Creep tests were performed by a special device, clamping radius of which was R=56.5 mm. Creep process was controlled up to the stabilisation of shells height, i.e. after t=48 h. Tests were carried out in wet and dry states of the specimen. Two different types of textile systems (I+K and K+I) composed of two layers were investigated (where K – outer material; I – interlining).

The effect of three-layer weft knitted material structure and composition upon performance properties

“…It is known that in the case of isotropic materials, external loading distributes equally in two main directions, whereas in the case of anisotropic materials the main part of external loading falls upon the stronger and less deformable direction, leaving the perpendicular one less loaded and more stretchable. 16,19–21…”

“…This confirmed earlier obtained findings that, in isotropic materials, external loading distributes equally in two main directions. 17,19–21…”

A Review of Fusible Interlinings Usage in Garment Manufacture

“…The first products were warp-knitted and it was used until the introduction of weft-inserted fibers into the warp-knitted construction that this type of interlining became widely accepted as a fusible for woven cloths. The fabrics used as base fabrics for fusible interlinings are warp knitted and the two types of construction in general use are lock nit and weft insert [35,36]. The advantage of a weft-inserted interlining is that it has a natural handle while providing resilience in the weft direction, i.e., around the body.…”

New aspects of polymeric sheet punch deformation

“…The first method is sufficiently well‐studied in aspect of theory and is widely used for the investigation of mechanical properties of materials 1–8. In this case, a disc‐shaped specimen restricted in the clamp is loaded by a punch until puncture (breaking) of specimen or until unchangeable value of punch force or punch deformation, i.e., P = const or H = const.…”