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1

The power of colour in geoheritage studies and marketing: some tentative reflections

Ruban Dmitry A., Mikhailenko Anna V., Yashalova Natalia N.

Geologos

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2021

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Vol. 27, No. 1

57--65

EN

Colour is a common physical property in exposures of unique geological objects, but is only marginally addressed in geoheritage literature. We here present our point of view on how this feature can be treated in geoheritage studies, with the general aim at setting up a broad discussion. Three functions of colour in geoheritage are outlined, namely geological interpretation (e.g., compositional and genetic peculiarities of sedimentary rocks), higher visibility due to colour contrast and aesthetic attractiveness to geotourists. Assessment of colour at geosites is challenging, especially because of uncertain colour nomenclatures. We propose to focus on colour identification, calculation of the number of colours, qualitative evaluation of colour contrast and comparison of colours of a given geological object to its landscape context. Geoheritage colours may have different meanings to geosite visitors, and colour-emotion associations revealed by national and international studies are important to trace these meanings.

2

Investigation of the Physical, Mechanical and Aesthetic Characteristics of Terrazo Tiles Obtained from Different Rock Aggregates

Çoşkun Canberk, Rızaoğlu Tamer

Multidisciplinary Aspects of Production Engineering

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2020

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Vol. 3, Iss. 1

477--490

EN

Throughout history, people have covered the floors of the buildings with materials such as carpet, rock pieces, wood, mosaic, ceramic and tile according to the conditions of the day due to their desire to protect them from moisture, make them hygienic environment easy to clean and give an aesthetic appearance. The merging of mechanization with cement based materials with the industrial revolution in the 19th century has brought along the development of diversity and different production methods in these floor covering materials. One of these coating materials is terrazo tiles that form the subject of the current paper. Terrazo tiles are materials obtained by pressing the mortar obtained by mixing water, cement, marble powder and aggregate in certain proportions. Within the scope of this research, it was aimed to provide alternative raw materials to the tile body and to transform the rock pieces, which are found in waste form in natural stone workshops, into the economy. For this purpose, geomaterials collected from magmatic, metamorphic and sedimentary rocks cropped in the Kahramanmaraş-Antakya-Elazığ regions and natural stone workshops operating in Kahramanmaraş city, were classified according to their geological origins and aggregates of 4.75-12 mm were obtained with the help of jaw crushers and sieves. Tiles have been produced in accordance with the method of tile production from sized aggregates. The produced tiles were kept in the water pool for 28 days and surface controls were made. According to the physical and mechanical test results applied to the tile samples, water absorption by weight is 5.31-13.25%, bending strength 4.95-8.89 MPa, Böhme abrasion resistance 1.09-3.43 cm3 /50 cm2 , mass loss after freeze-thaw is observed to be in the range of 0.97-1.59%. On the other hand, the surface roughness of the tiles prepared with coarse rock aggregates was found to be relatively lower than the tile samples obtained with fine grained rock aggregates. The obtained results indicate that the geomaterials subject to the research can be used as an alternative raw material source in tile production and these raw materials will provide new benefits to the construction field.

3

Influence of the Kind of Fabric Finishing on Selected Aesthetic and Utility Properties

Frydrych I., Dziworska G., Matusiak M.

Fibres & Textiles in Eastern Europe

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2003

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Vol. 11, no. 3 (42)

31--37

EN

Clothing designed by means of engineering methods should be characterised by pleasant handle, good drape, and appropriate hygienic properties. All these properties depend not only on the kind of raw material applied and the structure of fabrics, but also on the kind of finishing. Therefore, a suitable selection of the kind of finishing which would conscious creation of the fabric properties plays an important part in clothing design by means of engineering methods. The aim of this investigation was to determine the influence of the kind of finishing on selected aesthetic and hygienic properties of cotton and cotton/polyester woven fabrics destined for clothing. Twenty variants of raw woven fabrics differentiated by raw material (woven fabrics of 100% cotton, 67% cotton/33% polyester, 50% cotton/50% polyester, 33% cotton/67% polyester) were finished by means of two methods: the standard starch method and the elastomeric method. The woven fabric parameters, such as the dimension changes after washing, crease resistance, drape, and air permeability were analysed. All these parameters were tested in accordance with Polish standards. The test results are discussed in this article.

PL

Projektowana inżynieryjnie odzież powinna odznaczać się przyjemnym chwytem, dobrą układalnością oraz odpowiednimi właściwościami higienicznymi. Wszystkie te cechy zależą od rodzaju zastosowanego surowca, struktury płaskiego wyrobu włókienniczego oraz rodzaju wykończenia. Dlatego też w inżynierskim projektowaniu tekstyliów ważną rolę odgrywa właściwy dobór sposobu wykończenia, pozwalający na świadome kształtowanie właściwości wyrobów. Przeprowadzone badania pozwoliły na ocenę wpływu rodzaju wykończenia na wybrane walory estetyczne i użytkowe tkanin bawełnianych i bawełniano-poliestrowych o przeznaczeniu odzieżowym. 20 wariantów tkanin surowych, zróżnicowanych zarówno pod względem splotu (płócienny, kombinowany i skośny) jak i surowca (tkaniny 100%CO, 50%CO/50%PES, 33%CO/77%PES)poddano dwóm rodzajom wykończenia: zwykłego krochmalowego, stosowanego dla tkanin pościelowych oraz wykończenia uszlachetniającego - elastomerowego. Analizie poddano takie parametry tkanin jak: zmiana wymiarów po praniu, odporność na mięcie, układalność i przepuszczalność powietrza. Wszystkie badania parametrów, wpływających na estetykę i komfort użytkowania, wykonano według polskich norm. Omówiono wyniki przeprowadzonych badań tkanin surowych i wykończonych.

4

Comparative analysis of the efficiency of flax yarn bleaching process and its influence on the yarn metrological parameters and physico-chemical properties of fibres

Tańska B., Lipp-Symonowicz B.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

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2000

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z. 59

103-110

EN

The main attention has been concentrated on the application of pro-ecological bleaching technologies eliminating or limiting the quantity of chlorine compounds, by the assumption to obtain the metrological indices and aesthetic values of yarn and physico-chemical properties of the fibres at the required level. The enzymatic treatment has been introduced as a factor assisting the efficiency of bleaching process.