Renovation vehicle Velorex brand by suitable leatherette

Cílem této bakalářské práce je výběr vhodného dodavatele kompletní sady čalouněných dílů pro renovaci vozidla značky Velorex. V práci je shrnuta historie tohoto vozidla a charakteristika obvyklých textilních materiálů užívaných pro renovaci. Z materiálů popisovaných v této práci je věnována největší pozornost plastické kůži (kožence). Dalšími uvedenými materiály jsou Betexin, Kortexin a střechovice. U těchto plošných textilií je provedeno měření mechanických vlastností a na základě výsledků měření s ohledem na ekonomické ukazatele jsou vybrány nejvhodnější textilie pro renovaci. U zmíněných materiálů je provedeno měření pevnosti a tažnosti, odolnosti v oděru, prodyšnosti, plošné hmotnosti a tloušťky. Součástí práce je stručný popis postupu upevňování plošných textilii na trubkovou konstrukci vozidla.The objective of this study is a selection of a supplier of a complete set of upholstered parts for renovation vehicles Velorex brand. There is summarized in this work the history of the vehicle and the characteristics of conventional textile materials used for the renovation. The most attention is paid to the plastic skin (leatherette), however other materials as Betexin, Kortexin and folding roof leather are mentioned as well. Measurements of tensile strength and stretch, abrasion resistance, permeability, basis weight and thickness were made on the fabrics. On the ground of results from the experiments were chosen the most suitable fabrics for renovation (with respect to economic indicators). The work includes a description of the process consolidation fabrics on a tubular construction of the vehicle

Evaluation of a visual defect of a wrinkle on textile using the principle of cyclic wrinkling of fabric

Cílem této práce je navrhnout a vyrobit jednoduchý přístroj pro hodnocení zlomové vrásky na textilii určené pro potah automobilových sedaček. Touto zlomovou vráskou se rozumí vzhledový defekt na povrchu textilie, který se negativně podepisuje na výsledné kvalitě autopotahu. Pro tento přístroj je navržena vhodná metodika pro měření a samotné vyhodnocení, která je postavena na principu cyklického mačkání testovaného vzorku. Konstrukce přístroje vychází z informací obsažených v rešeršní části práce, kde jsou popsány některé dosud užívané metody a přístroje pro hodnocení ohybového chování textilie, především ohybové tuhosti a deformačního úhlu. Přístroj je doplněn výkresovou dokumentací vytvořenou v CAD programovém prostředí. Veškerá měření jsou díky snímací kameře zaznamenána a následně uložena na přiloženém DVD nosiči.The objective of this diploma thesis is to design and produce a simple-working device for the evaluation of break lines on textile materials for car seat covering. This break line is a visual defect on the surface of the fabric, which is negatively imprinted on the resulting quality of the car seat covering. There is a methodology for measurement and evaluation of break lines proposed in this thesis. This methodology is based on the cyclic pressing of the test sample. The construction of the device is rising from the information contained in the literature search part of the thesis, where some of the methods and devices used to evaluate the bending behavior of the fabric are described. Namely these characteristics are flexural stiffness and the deformation angle. Drawing documentation of the device created in the CAD software is enclosed as well. All measurements are recorded by a camera and stored on the enclosed DVD media

Nanofibrous membrane as a moisture barrier

The text of the paper deals with the unusual use of textile membrane, originally used in outdoor clothing, as hydrobariers in building composites. In the experiment, the resistance of the building composite exposed to the 1.5 m high water column is examined. Research is conducted on two levels. On the first level, we focus on developing a building composite that includes a smart fabric membrane and is waterproof and vapour-permeable. On the second level, we deal with the development of a measuring system which will be able to correctly evaluate the water resistance of the building composite. A moisture-proof and air-permeable membrane can protect construction against various effects of moisture (i.e. flood, rain, ground water). The resulting water permeability values are compared with the four types of construction composite. It is discussed whether it is possible to create hydrobarriers in buildings if a textile nanofibrous membrane is composed into the building composite. If the composite is able to capture 70-80% of the water then the energy savings are significant

Development and Application of a New Apparatus for Moisture Measurement in Building Composites

The presented paper is divided into two levels. On the first level, the research is focused on development of a material that includes a smart fabric membrane (nanofiber) and is waterproof and vapour-permeable. On the second level, it deals with the development of an apparatus which is able to evaluate the resistance of the building composite against water. A new device is presented that can measure how waterproof the building material is, with a thickness between five to 20 centimetres. The tested samples are in the shape of a square or circle, they have a width of 20 centimetres, or a diameter of 20 centimetres. All of the building composite samples were tested using a water column that is one meter high. Experiments simulate floods on this new apparatus. It was found that materials can be evaluated not only according to the amount of water flow per unit of time, but also according to the shape of the flow curves