The research deals with mechanics of knitted structure, resp. the influence of some knitting parameters and relaxation period on structure and mechanical properties of plain jersey weft knitting fabrics made of cotton and elastane yarns. The results in the investigation indicate that knitting parameters directly influence on behaviour of knitting fabrics during relaxation and their mechanical properties. The horizontal and vertical density grows with the increase of knitting yarn feeding load. Increase in knitting yarn feeding load reduces the length of the yarn in the loop. The most prominent dimensional changes in the direction of the courses and wales occur with the samples knitted with the highest feeding load of yarns. The best results of measuring structural parameters and dimensional changes in knitted fabrics in relaxation have been exhibited by knitted samples with the lowest feeding load. Therefore, feeding load of the yarns should be taken into account when constructing the knitted fabrics, as it considerably affects fabric properties.
COBISS.SI-ID: 15395094
3D virtual prototyping become a topic of increasing interest of both computer graphics and computer-aided design for apparel production. These technologies are especially important when a garment prototype should be developed for a special purpose, such as ski-jumper suit. Namely, shape and size of a jumpsuit need to be individually adapted to each ski-jumper according to the exact requirements set by FIS (Fédereation Internationale de Ski). The FIS requirements change annually or even more often in order to assure ski-jumpers' safety during competitive ski jumps. The conventional body measurement technique and development of ski-jumpers pattern are time consuming. In order to develop an accurate and rapid design, as well as an adaptable and quickly changeable jumpsuit, different modern technologies were used. The obtained virtual prototypes of a skijumper and a jumpsuit enable both - fast re-modelling according to FIS rules and expeditious development and/or simulations of a jumpsuit. All these measures are taken to improve the aerodynamic design of a suit and jumper's result. The body scanning technology represents a great potential for textile industries and above all for producers of garments. It enables fast and reliable capture of 3D body data and extraction of precise measurements needed for design, construction, visualisation and animation of garments on virtual mannequins. However, there are also some problems related to the scanned body models, caused by the scanning technique. In this article we are discussing the techniques for reconstruction of the body models and its results using the example from one of the competitive sports clothing - ski-jumper suit. In our study we have used different computer graphics programmes in order to reconstruct and prepare the 3D body scan model for successfully importing it into OptiTex CAD programme. The aim of this research was to enable effective 3D virtual garment prototyping using the reconstructed body scan model.
COBISS.SI-ID: 15254806
The main purpose is to establish a method of gathering anthropometric measurement data based on the technology of 3D scanning human body, as a tool for automated recording of anthropometric bodily measures. The concept will bebased on determining the position of individual anthropometric points on human body, while special attention will be given to studying virtual anthropometric points. Anthropometric points are divided into fixed ones and virtual ones, which shift with the position of the body. Object-oriented, parametric feature based model describes the human body with appropriate accuracy. Vertexes of modelling features defined by automatically calibrated 3D scanner produced points of the human body. 3D model helps to measure the different body sizes virtually. The relationship between basic body sizes and modelling features of body can be explored by procedures based on data mining methods.
COBISS.SI-ID: 15833366