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Stały URI dla kolekcjihttp://hdl.handle.net/11652/4411

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Teraz wyświetlane 1 - 7 z 7
  • Pozycja
    Himalayan nettle: a promising fibre on the rise
    (Wydawnictwo Politechniki Łódzkiej, 2022) Santiago, Ana; Pinheiro, Cláudia; Belino, Nuno
    The nettle is widely known as an "unloved" plant due to its unpleasant and even painful texture when incorrectly handled. However, it has very interesting therapeutic properties and stands out for its high sustainability, from cultivation, extraction, and fibre processing to the development of a long-lasting end-product with unique characteristics. With this paper we sought to demonstrate the growing relevance of the nettle fibre for the fashion industry, mainly their spinnability properties. For this purpose, a hand spun Himalayan nettle yarn (588,24 Tex) was bought and it were studied. A woven fabric with different wool/nettle compositions was produced and their main properties analysed. Our findings proved that due to the irregularity of the acquired yarn, it is not possible to obtain scientific statements concerning the properties of nettle yarn. However, this is a work in progress, which aims for more promising results.
  • Pozycja
    Estimating biodegradation of cotton fabric by soil burial
    (Wydawnictwo Politechniki Łódzkiej, 2022) Sánchez-Martínez, Ainhoa; Belda-Anaya, Raquel; Capablanca, Lucía; Payá, Jaime Gisbert; Bonet-Aracil, Marilés
    Today we can see a greater awareness of sustainability and environmental protection, however, there are many environmental impacts that are not measured and therefore taking measures to minimize them is not easy. In this article we intend to evaluate the biodegradability of a cotton fabric through the generation of one of the greenhouse gases, CO2. For this, the cotton fabric is buried in an artificial ecosystem and accelerated aging is carried out. The results show that the biodegradability of cotton fabric is around 70-80% of the biodegradability of cellulose.
  • Pozycja
    Analysis of thermal aging effect on the tensile strength of textile materials intended for the reinforcement of conveyor belt
    (Wydawnictwo Politechniki Łódzkiej, 2022) Lemmi, Tsegaye Sh.; Barburski, Marcin
    Woven fabrics produced from high tenacity (HT) polyester/polyamide 66 yarns are most widely used to reinforce conveyor belts in the mechanical rubber goods industry. The tensile property of the conveyor belt is primarily dependent on the property of fabrics used to reinforce the belt. During the production process of the conveyor belt, the textile-rubber reinforcement undergoes a vulcanization process at high temperature to provide compulsory physio-mechanical properties of the belt by adhering the woven fabric with a rubber. Subjecting textile materials to high temperatures for the vulcanization process has an influence on the mechanical properties of the woven fabric. The main aim of this work was to investigate the effect of thermal aging on the tensile property of HT polyester yarn and woven fabric which is intended to reinforce conveyor belt. An extensive experiment on HT polyester yarn and the woven fabric was conducted by subjecting the textile materials to various aging temperatures. Additionally, the tensile property of fabrics after the vulcanization process of the conveyor belt was conducted to fully understand the effect of vulcanization temperature on the properties of woven fabric. The experimental test results of polyester yarn, woven fabric, and fabrics removed from the conveyor belt revealed that vulcanizing of the textile reinforced conveyor belt at high temperature(220 °C) can diminish the tensile strength and increase the elongation at break of the yarn and fabric.
  • Pozycja
    Modification of cotton fabric using a three-component Ag/TiO2/g-C3N4 composite to improve protection against UV radiation
    (Wydawnictwo Politechniki Łódzkiej, 2022) Glažar, Dominika; Štular, Danaja; Urbas, Raša; Tomšič, Brigita; Šobak, Matic; Jerman, Ivan; Chouhan, Raghuraj S.; Simončič, Barbara
    In this study, the chemical modification of cotton fabric to develop UV-protective properties is presented. For this purpose, TiO2 and a three-component Ag/TiO2/g-C3N4 composite were synthesised ex-situ and were applied to cotton fabric using a pad–dry–cure method. The presence of the composite on the cotton fibres was detected using the SEM, EDS and FTIR methods and with a digital microscope. The results show that the application of TiO2 increased the UV protection of the cotton fabric compared with the untreated fabric. The combination of TiO2 with Ag and g-C3N4 in the composite further improved the UV protection of the cotton fabric, as the absorption in the UVA range increased significantly. This resulted in a large increase in the UPF value, placing the cotton fabric in the excellent protection category. This proves the cumulative effect of the components in the composite.
  • Pozycja
    Wool finishing for washable worsted man’s jacket
    (Wydawnictwo Politechniki Łódzkiej, 2022) Rhouma, Amira Belhaj; Campagne, Christine; Behary, N. Massika; François, Sébastien; Lanceron, Charles; Vieillard, Julien
    The aim of this study is to functionalize a 100% worsted wool fabric for use as washable suit jackets in a household washing machine (Samsung) with the wool/delicate cycle. In fact, it is highly recommended to wash worsted suit jackets by dry cleaning in order to avoid garment shrinkage when washing. Wool is known for its shrinking properties which make it difficult to wash with water. Varying chemical finishing were applied on woven worsted fabric. The aim of this finishing was to avoid both, felting shrinkage caused by the entanglement of fibres and fabric shrinkage due to fibre release strains and stresses introduced during processing, and hence improve its dimensional stability during domestic washing. A men jacket stitched with the chemically treated fabric was worn 5 times a week before being subjected to washing. Overall, 5 domestic washing were performed. And the fabric was analysed before and after the washings. Excellent dimensional stability was obtained without any sign of physical degradation as observed by SEM. This could be explained by the good adhesion of the fibre finish coating which resist to strains of wash and wear. Physical and chemical analysis using Zeta potential measurement would suggest that padding with a mixture of polycation (polyurethane based resin) and poly anion (polysiloxane-based resin) will help improving coating adhesion and hence its resistance to wash and wear.
  • Pozycja
    Sound wave absorption properties of multi-layers of different woven fabric structures
    (Wydawnictwo Politechniki Łódzkiej, 2022) Bethalihem, Samuel; Barburski, Marcin; Witczak, Ewa
    Nowadays, acoustic health is a priority issue in homes and offices. To address the problem, a variety of sound-absorbing materials are used, one of which is woven and nonwoven fabrics. This paper focused on the sound absorption analysis of two different woven fabric structures as an increasing layer and with base material nonwoven fabric. The fabrics' sound absorption properties were determined using an impedance tube across 80–5000 (Hz) frequencies. The result demonstrated that the absorption of sound energy through plain fabric decreases as the number of layers was increased. On the other hand, in the case of a sateen fabric structure, the absorption of sound energy increases with the number of layers. The absorption capabilities of sateen fabrics are particularly impressive in the high-frequency ranges. The double and triple layers of plain fabric, on the other hand, demonstrate high sound absorption results at frequencies below 1000 Hz in comparison to sateen fabric.
  • Pozycja
    Research on surface geometry of woven fabrics of different structure
    (Wydawnictwo Politechniki Łódzkiej, 2022) Kosiuk, Gabriela; Matusiak, Małgorzata
    The geometric structure of surface of textile materials is of significant functional, operational and aesthetic importance. Generally, the geometric structure of the surface of materials consists of three main elements: shape, waviness and roughness [1,2]. Parameters characterizing a quality of fabrics surface, i.e. surface topography are strongly related to the fabrics’ structure, raw material composition and a way of finishing. The aim of presented work was to analyse the parameters characterizing the geometric structure of the surface of cotton woven fabrics with different weaves. Totally, 12 fabric variants were the objects of the investigations. They were woven fabrics of 6 weaves and 2 kinds of weft yarn. Surface topography measurements were made by means of the MicroSpy® Profile profilometer by FRT the art of metrology™ [3]. Using the Mark III software cooperating with the profilometer, the basic parameters characterizing the geometric structure of the fabrics’ surface were determined according to standard [4]. Results showed that the fabrics differ between each other in the aspect of the majority of parameters characterizing the surface geometry. Statistical analysis confirmed that weave and linear density of weft yarn significantly influence the surface properties of the investigated fabrics.