In the textile and clothing industries, because of the increasingly individual and customer-oriented production, the sample collections of the firms extend more and more, whereas the quantities for the production decrease. At present, the stage of product development and product preparation of clothes requires approximately three times the stage of consumption. In order to compensate for the resulting greater efforts in the product preparation and to react more quickly and flexibly to latest fashion, the use of complex CAD-CAM solutions is mst. With CAD-systems available on the market (with two exceptions) the systems work only two-dimensionally and the material behaviour and the material parameters are not taken into account. Both these aspects are required for the three-dimensional display of a model with regard to the draping in order to give the designer and model maker a real impression of the model. The main focus of this research is to investigate the fundamentals of three-dimensional handling of fabrics. For that, a prerequisite is the implementation of algorithms for the simulation of draping of ready-made clothes. In this project a model will be presented for the calculation by approximation of a drape test standardized in the textile industry. As woven fabric is of low thickness compared with the other dimensions, the fabric can be considerse to be a two-dimensional continuum. For the simulation model, the shell theory is taken as a basis. The significant material parameters must be taken into consideration. Therefore, the more detailed treatment of physical and mechanical properties and their correct mathematical and physical and mechanical properties and their correct mathematical and physical formulation is of interest. Investigations concern several technical and technological parameters of woven fabrics, mainly the influence of the finishing process on the mechanical properties of the fabrics.