Thematische Bibliographien / Leather-like material

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Auswahl der wissenschaftlichen Literatur zum Thema „Leather-like material“

Autor: Grafiati

Veröffentlicht am 24. Juni 2021

Zuletzt aktualisiert am 31. Mai 2022

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Zeitschriftenartikel zum Thema "Leather-like material"

Sourprae, Karn, Ekwipoo Kalkornsurapranee, Nussana Lehman, Arthittaya Chuaybamrung, Akarapong Tuljittraporn, Yeampon Nakaramontri, Apinya Krainoi, Jobish Johns, Ladawan Songtipya und Nattapon Uthaipan. „Leather-Like Material Based on Natural Rubber Composites“. Journal of Physical Science 33, Nr. 1 (25.04.2022): 65–82. http://dx.doi.org/10.21315/aos2022.33.1.5.

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This research was conducted to study x-ray and gamma radiation shielding parameters such as mass attenuation coefficient, mean free path, half value layer, tenth value layer, effective atomic numbers, effective electron density for the xBi2O3-(95-x)B2O3-5BaO (where x = 20 mol%, 35 mol%, 50 mol%, and 70 mol%) glass systems with different molar composition. The studied ceramic specimens were denoted by BB20, BB35, BB50 and BB70 and their density values were 4.438 g/cm3, 5.973 g/cm3, 7.156 g/cm3, and 8.005 g/cm3, respectively. Radiation shielding parameters of the samples were investigated by using web based XCOM programme. The obtained results revealed that the highest mass attenuation coefficients were reported for BB70 sample, which has the highest Bi2O3 additive in its chemical structure. At 7 MeV photon energy, half value layer (HVL) values were reported as 5.7812 cm, 3.8065 cm, 2.8533 cm, and 2.2457 cm for BB20, BB35, BB50 and BB70, respectively. Therefore, it can be concluded that the present bismuth sesquioxide based glasses in the Bi2O3-B2O3-BaO glass system have a good quality in radiation protection purposes. Therefore, this glass system can be used as an alternative to conventional materials with the right molar compositon in its chemical formation.

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Schnabel, T., M. C. Barbu, E. Windeisen-Holzhauser, A. Petutschnigg und G. Tondi. „Impact of Leather on the Fire Resistance of Leather-Wood Fibreboard: FT-IR Spectroscopy and Pyrolysis-GC-MS Investigation“. Advances in Materials Science and Engineering 2019 (10.04.2019): 1–8. http://dx.doi.org/10.1155/2019/2473927.

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Leather-wood fibreboards are innovative composite materials, which combine together the high mechanical properties of wood with the superior fire behaviour properties of leather. This study deals with the understanding of the combustion mechanism of the wet-white leather panel. During burning, an overlay coating-like surface is formed on top of a foamy structure that creates the heat transfer barrier. The FT-IR spectroscopy results of the leather show the rearrangement of the proteins and the formation of an increasing amount of acid groups when the exposure to hot gun at over 530°C was prolonged. These acid moieties can react with amino groups of other peptide chains, building a protective polymer network which hinders the oxygen to reach the core of the panel. Simultaneously, the gases produced during rearrangement cannot easily leave the material, producing a foamy structure which slows down the heat transfer to the core of the material. The Py-GC-MS analysis shows that the gases produced by the wet-white leather-type protein-based boards were amino-aromatic compounds like the diketopiperazine (DKP), which do not burn easily. The combination of the effects of (i) formation of the overlay coating-like surface, (ii) establishment of the foamy structure, and (iii) degassing of DKP explains the outstanding fire properties of leather and wood-leather fibreboards.

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Byun, Hee-Guk, Jae-Young Je und Se-Kwon Kim. „Preparation and Characteristics of Leather-like Material from Shark Intestines“. Fisheries and aquatic sciences 5, Nr. 2 (01.06.2002): 136–40. http://dx.doi.org/10.5657/fas.2002.5.2.136.

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Serweta, Wioleta, Małgorzata Matusiak, Zbigniew Olejniczak, Jolanta Jagiełło und Justyna Wójcik. „Proposal for the Selection of Materials for Footwear to Improve Thermal Insulation Properties Based on Laboratory Research“. Fibres and Textiles in Eastern Europe 26, Nr. 5(131) (31.10.2018): 75–80. http://dx.doi.org/10.5604/01.3001.0012.2535.

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The aim of this study was the analysis of the thermal resistance of upper textile materials combined with leather or textile linings. Following a comparative analysis of the combinations of materials tested, the best insulators werre recommended. Footwear material packages were created on the basis of the analysis of hygienic properties of textile and leather materials, which were available on the market. Hygienic properties like water vapour permeability and water vapour absorption gave information about the possibility to apply these materials from a microclimate point of view.

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Grabowska-Polanowska, Beata, Joanna Kwiecień und Robert Gajewski. „Measurement of the Inside Microclimate of Footwear Constructed from Different Material Sets“. Fibres and Textiles in Eastern Europe 28, Nr. 6(144) (31.12.2020): 79–84. http://dx.doi.org/10.5604/01.3001.0014.3801.

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The aim of the research was to determine the effect of footwear materials used on the microclimate inside shoes and to identify which material set provides optimal comfort to users. The microclimate of the interior of 21 pairs of footwear was tested. Selected nonwovens, natural leather, and leather-like materials were used to make the upper, lining and insole lining. Determined was the amount of water absorbed on the sock fibres, and measurement was taken of the relative humidity and temperature, as well as the permeability and sorption of outer materials and lining elements.Results of the researches carried out showed that in order to ensure adequate footwear comfort, materials for the upper should have high permeability, while lining materials should have both high sorption and permeability.

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Asabuwa Ngwabebhoh, Fahanwi, Nabanita Saha, Hau Trung Nguyen, Urška Vrabič Brodnjak, Tomas Saha, Anežka Lengalova und Petr Saha. „Preparation and Characterization of Nonwoven Fibrous Biocomposites for Footwear Components“. Polymers 12, Nr. 12 (16.12.2020): 3016. http://dx.doi.org/10.3390/polym12123016.

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Chromium-tanned leathers used in the manufacture of footwear and leather goods pose an environmental problem because they contain harmful chemicals and are very difficult to recycle. A solution to this problem can be composite materials from tree leaves, fruit residues and other fibrous agricultural products, which can replace chromium-tanned leather. The present study describes the preparation of biocomposite leather-like materials from microbial cellulose and maple leave fibers as bio-fillers. The formulation was optimized by design of experiment and the prepared biocomposites characterized by tensile test, FTIR, DMA, SEM, adhesion test, volume porosity, water absorptivity, surface wettability and shape stability. From the viewpoint of future use in the footwear industry, results obtained showed that the optimized material was considerably flexible with tensile strength of 2.13 ± 0.29 MPa, elastic modulus of 76.93 ± 1.63 MPa and porosity of 1570 ± 146 mL/min. In addition, the material depicted good shape stability and surface adhesive properties. The results indicate that a suitable treatment of biomass offers a way to prepare exploitable nonwoven fibrous composites for the footwear industry without further burdening the environment.

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Jakab, K., F. Marga, R. Kaesser, T. H. Chuang, H. Varadaraju, D. Cassingham, S. Lee, A. Forgacs und G. Forgacs. „Non-medical applications of tissue engineering: biofabrication of a leather-like material“. Materials Today Sustainability 5 (September 2019): 100018. http://dx.doi.org/10.1016/j.mtsust.2019.100018.

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Kiraye, Michael, Mwinkione Mwinyihija, William Wanasolo und Rosemary Nalwanga. „The Uganda’s perspective, status and implementation of the National leather value chain Strategies“. Journal of Africa Leather and Leather Producuts Advances 4, Nr. 1 (31.12.2018): 13–48. http://dx.doi.org/10.15677/jallpa.2018.v4i1.15.

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Uganda is transforming her leather value chain to a modern and competitive sub-sector, aiming at production of value-added leather materials and leather products from the abundant raw hides and skins at the slaughter houses and abattoirs. The challenge though is the exportation of about 95% of the wet blue product, which is the only processed leather material for export from Uganda. More still, the quantity of wet blue produced and exported from Uganda stands at 1.08 million pieces from hides and 2.01 million pieces from goats and sheep skins amounting to 17.28 m sq. ft and 7.04m sq. Ft, respectively. In total this translates to about 24.32m sq. ft of finished leather if it was to be processed from within Uganda. Taking an average square foot of 2.5 sq. ft per pair of shoes, then this output would give about 9.73m pairs of leather shoes. Since Uganda needs about 25 m pairs of leather shoes per annum, it implies that there would be a deficit of about 16.88 m pairs of shoes per annum. This deficit has been covered by importing about 0.5 m pairs of leather shoes per annum and about 23.5 m pairs of synthetic leather shoes and second-hand shoes combined. Now Uganda exports about 24.32 m sq. ft worth of leather (about 9.73m pairs of shoes) and imports about 0.5 m pairs of leather shoes which is a sixteenth of what is exported. Exportation of unfinished products for processing elsewhere goes with jobs and services as well. For this reason, wet blue product made in Uganda need to be further processed in the country to avail leather and leather products, service like Design Studios, facilities, e.g., incubation centers and jobs. The information about tanneries was obtained by use of a questionnaire in which respondents were tannery industry production managers. In addition, documentary review of the world population on Uganda, Ministry of Trade Industry and Cooperatives (MTIC) abstracts and UBOS census 2014 reports were also used as the source of data. According to the Uganda census 2014, the country’s primary and secondary going children are 10,113,201 students. If for example these students wear leather shoes at 35,000/= per pair per annum then the leather Sector would earn 353bn UGX per annum. This contribution would be about 56 times that which tourism is contributing towards the GDP of Uganda, implying that the leather sector in Uganda, if emphasised could stimulate economic growth of the country.

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Mazari, Adnan, Funda Buyuk und Antonin Havelka. „Testing the car seat's comfort“. Communications in Development and Assembling of Textile Products 1, Nr. 2 (13.12.2020): 141–47. http://dx.doi.org/10.25367/cdatp.2020.1.p141-147.

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In this paper, four commonly used car seat covers, made from leather as well as from woven, knitted and 3D spacer fabrics are tested as sandwiched and separate layers to determine the effect of the lamination and layers on air and water vapor permeability. Different combinations of interlining materials are also tested to obtain the optimum comfortable car seat cover. This analysis gives us a real idea of which layer negatively affects the breathability of the car seat. The focus of this part of research was to identify the issues within the car seat material instead of factors like external cooling or the clothing of the driver. It was observed that the polyurethane (PU) foam and lamination significantly reduce the permeability of the car seats. The 3D spacer fabric shows the best top layer properties as compared to classical woven, leather or knitted car seat covers. The research shows how layers and lamination cause thermo-physiological discomfort of car seats.

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Hellat, Triin. „Bellows-type tobacco pouches from the perspective of native crafts“. Studia Vernacula 8 (07.09.2017): 158–73. http://dx.doi.org/10.12697/sv.2017.8.158-173.

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Among the collections of ethnographic artefacts in Estonian museums, there can be found several tobacco pouches, made from textile as well as leather. While tobacco pouches can vary greatly depending on the cutting method, sewing technique, and decoration, it is the technique and design of the bellowstype pouches which make them the most fascinating kind. These pouches gain their name from the inset that has been folded together like a pair of bellows; this inset allows one to open the pouch more conveniently when stuffing the pipe. Such pouches typically consist of three pieces. The front and back sides (‘cheeks’) are usually fastened together, and the pieces with a curved shape (whether of the same leather or of a different kind) are sewn on to the two sides between the cheeks, and folded to make a bellows. It is running or overcast stitch using linen thread that have chiefly been used. Machine-sewn pouches also exist. Leather patches, which are round, or which may resemble a rhombus or a heart, etc. in shape, are referred to as ‘ears’ when attached to the front and back of the pouch. They may be of the same leather as the cheeks or can be extras sewn onto the sides. Among the decorations that have been used we can find debossed ornamentation, copper rings, appliqué, and cut-out. The combination of the main material with seal fur and with fabrics or leather of a contrasting colour has also been used. Pouches that are lavish and require a technically more elaborate method of preparation are often embellished with bead embroidery. A floral ornament similar to that which appears on the beaded belts fashionable in the same period was usually used. Tobacco pouches were made at home for personal use, or could be ordered from craftsmen, and could be purchased at fairs and from pedlars. In addition to the collections explored in this article, leather tobacco pouches can be found in several museums across Estonia, and these pouches too warrant closer examination in the future.Keywords: ethnographic leather bags, tobacco pouch, bellows-type tobacco pouch, purse, leather, bead embroidery

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Dissertationen zum Thema "Leather-like material"

Barabash, Alina, Vladyslav Deschenko, Oleksiy Chuk, Аліна Барабаш, Владислав Дещенко und Олексій Чук. „Leather-like material biofabrication using Pleurotus osteatus“. Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/50742.

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1. Jones M., Gandia A., John S., Bismarck A. Leather-like material biofabrication using fungi Nature Sustainability. 2021. Vol. 4. P. 9-16. URL: https://doi.org/10.1038/s41893-020-00606-1
Leather remаins one of the most durable and versatile natural materials. However, some consumers question the ethicаl ramifications and environmental sustainability of wearing products sourced from аnimals. Fungi-derived leather substitutes are an emerging class of ethically and environmentally responsible fabrics that are increasingly meeting consumer aesthetic and functional expectations and winning favor аs an alternative to bovine and synthetic leathers. The new material uses agricultural and forestry byproducts, such as sawdust, to grow chitinous polymers and other polysaccharides that form into mats of mycelium, the underlying root networks of fungi. From there, the material is altered physically and chemically to visually resemble leather and exhibit comparable properties. The main task of the experimental work was to obtain the prototype of the leather-like material based on the mycelium of the Pleurotus ostreatus the whole procedure can be divided into several parts: cultivation of fungus on suitable nutrient medium, harvesting of mycelium, plastification, and drying.
Шкіра залишається одним з найбільш універсальних природних матеріалів. Останнім часом все більше споживачів ставлять під сумнів етичні норми виробництва натуральної шкіри. Синтетичні замінники шкіри, виготовлені з полівінілхлориду та поліуретану, знайшли широкий ринок збуту. Проте процес їх виробництва передбачає використання шкідливих хімічних речовин. Так постає задача пошуку альтернативних шляхів отримання шкірозамінників. Замінники шкіри, отримані з біомаси грибів, є новим класом біоматеріалів, які все частіше відповідають естетичним та функціональним сподіванням споживачів. Технологія отримання шкіри з біомаси грибів передбачає використання відходів сільського господарства та деревообробної промисловості як субстрату для культивування грибів. Основною метою експериментальної роботи є отримання прототипу шкіроподібного матеріалу на основі міцелію Pleurotus ostreatus. Весь хід роботи можна розділити на декілька частин: культивування гриба на відповідному живильному середовищі, збір міцелію, пластифікація та висушування.

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Wijayarathna, Egodagedara Ralalage Kanishka Bandara. „Development of Fungal Leather-like Material from Bread Waste“. Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-25522.

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Food waste and fashion pollution are two of the significant global environmental issues throughout the recent past. In this research, it was investigated the feasibility of making a leather-like material from bread waste using biotechnology as the bridging mechanism. The waste bread collected from the supermarkets were used as the substrate to grow filamentous fungi species Rhizopus Delemar and Fusarium Venenatum. Tanning of fungal protein fibres was successfully performed using vegetable tanning, confirmed using FTIR and SEM images. Furthermore, glycerol and a biobased binder treatment was performed for the wet-laid fungal microfibre sheets produced. Overall, three potential materials were able to produce with tensile strengths ranging from 7.74 ± 0.55 MPa to 6.92 ± 0.51 MPa and the elongation% from 16.81 ± 1.61 to 4.82 ± 0.36. The binder treatment enhanced the hydrophobicity even after the glycerol treatment, an added functional advantage for retaining flexibility even after contact with moisture. The fungal functional material produced with bread waste can be tailored successfully into leather substitutes using an environmentally benign procedure.

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Buchteile zum Thema "Leather-like material"

Agrawal, Raghav, Pramod Sharma und Anurag Saxena. „A Diamond Cut Leather Substrate Antenna for BAN (Body Area Network) Application“. In Advances in Wireless Technologies and Telecommunication, 54–59. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7611-3.ch004.

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In this chapter, a diamond cut shape antenna has been simulated under CST software using twisting material (i.e., leather). The dielectric constant of leather material is 1.655. For antenna to be twist, leather substrate is used. The return loss of this newly design diamond cut shaped antenna is -35 dB at 5.5467 GHz resonant frequency. This type of antenna can be useful in BAN (body area network) applications. In this chapter, simulated results like return loss graph, 3-D pattern, and polar plot are presented.

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Swift, Ellen, Jo Stoner und April Pudsey. „Introduction to Part II“. In A Social Archaeology of Roman and Late Antique Egypt, 207–27. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198867340.003.0007.

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This chapter introduces the material to be studied in Part II; it outlines the types of evidence for functional domestic artefacts that reveal the experiences of daily life in Roman and late antique Egypt. It explains that an analysis of object function can reveal how objects were used for different activities on a day-to-day basis, and therefore demonstrate some of the experiences of people in the past. The section assesses a range of everyday artefacts in durable materials, like stone, glass, ceramic, metals, and bone and ivory. Artefacts associated with daily activities such as cooking and dining, lighting the home, leisure time, and textile production are discussed in relation to specific examples from the archaeological record and textual sources. The section also addresses the extraordinary organic artefacts surviving from Egypt, and the special value of functional artefacts made of wood, textiles, leather, and other perishable materials. Organic artefacts associated with home furnishings and other textiles, writing tools and materials, basketry, and cleaning equipment, are discussed in relation to the experiences they facilitated in Roman and late antique Egypt. The chapter also discusses how these artefacts reveal the temporal rhythms of the home and multifunctional nature of domestic space and objects.

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Aditiawati, Pingkan, Rudi Dungani, Salsabila Muharam, Aminudin Sulaeman, Sri Hartati, Mustika Dewi und Enih Rosamah. „The Nanocellulose Fibers from Symbiotic Culture of Bacteria and Yeast (SCOBY) Kombucha: Preparation and Characterization“. In Nanofibers - Synthesis, Properties and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96310.

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Symbiotic Culture of Bacteria and Yeast (SCOBY) is a by-product in the form of cellulose polymers produced by bacteria in the kombucha fermentation process. Until now, SCOBY products still have application limitations. Several world designers have succeeded in making works using fabrics based on SCOBY. The resulting fabric has a flexible texture and is brown like synthetic leather. Fabrics based on SCOBY are also considered cheap and more environmentally friendly with short production time. The use of SCOBY as a fabric base material still has problems, where the fabric produced from SCOBY kombucha, directly through the drying process, has the characteristic of being very easy to absorb water. Another problem is that SCOBY production in the kombucha fermentation process is difficult to achieve a uniform thickness and SCOBY production in a large surface area is also difficult to stabilize. The development of SCOBY into cellulose fibers can be done by first changing the structure of SCOBY into nanocellulose. This nanocellulose production can then be developed into nanocellulose fibers in the form of threads and then spun to become a complete fabric. The production of nanocellulose is carried out using cellulase enzymes. It is known that cellulase enzymes can be obtained through the growth of bacteria or specific fungi. One of the groups of fungi and bacteria commonly used to produce cellulase enzymes are Trichoderma and Bacillus.

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Kruja, Alba Demneri, und Eltona Berberi. „Tourism and Handicraft Industry“. In Cases on Global Leadership in the Contemporary Economy, 119–36. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-8088-1.ch007.

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Tourism is one of the most crucial sectors contributing to country development. In Albania, the sector`s contribution to GDP has an increasing trend through the years. This study aimed to explore the role of tourism in supporting the development of handicraft sector and analyzing the constraints faced by artisans during their daily activities of crafts production process. Albania is known for the tradition of crafts with precious values, created for centuries by masters of folk, in every province according to the features and specifications of different areas. The most known handicrafts in Albania are works in wood, iron, copper, and precious materials like gold, silver, leather, wool, etc. These values are inherited generation to generation have aroused great interest to visitors and local and foreign researches. In cities like Kruja and Scutari, a diversity of crafts with high utilitarian and aesthetic level is distinguished. This is also the reason of selecting the surveyed sample of artisans from Kruja and Scutari.

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Konferenzberichte zum Thema "Leather-like material"

Saha, D., L. Gevaux, T. Cances, A. Richard und G. Obein. „DEVELOPMENT OF A µBRDF GONIOSPECTROPHOTOMETER FOR BRDF MEASUREMENT ON TINY SURFACES“. In CIE 2021 Conference. International Commission on Illumination, CIE, 2021. http://dx.doi.org/10.25039/x48.2021.op42.

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A µBRDF goniospectrophotometer has been developed at LNE-CNAM. This device performs traceable BRDF measurement with a measurement surface of 30 µm of diameter. All angular configuration of measurement belonging to the hemisphere are possible. The spectral range is the visible. This device intends to help to progress in the effort to extent the BRDF metrological scale from the centimetre size to micrometre size. Traceable µBRDF measurement are requested today to validate physical based rendering models used in virtual prototyping and to progress in the comprehension of the appearance of natural material like wool, wood, or leather.

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