Traditionally shoes are made from leather and most of the worldwide population wear it, but there is a particular group of consumers, with an ethical behavior, who prefer shoes made from alternative materials. In our days, the main objective of the fashion industry (T&C, footwear) is to reduce the intensive use of fossil energy, non-renewable raw material and decreasing of landfill waste. In past years, sustainable and ethical consumption has become a popular topic in industries, has gained increasing importance in wealthy countries all over the world. This paper presents some point of view about ethical footwear and the consumer behavior, it also provides a brief overview of global consumption of footwear, as starting point for a new approach of the supply chain of footwear industry. The objective of this paper is to present consumers perception and interests regarding ethical footwear and ethical brands. To reach the main objective of the article, the methodology of the research consists in a survey applied to a target group of Romanian people, men and women, with average to high incomes, interested in buying less but sustainable products.
The global demand for fiber-based products is continuously increasing. The increased consumption and fast fashion current in the global clothing market generate a significant quantity of pre-and post-production waste that ends up in landfills and incinerators. The present study aims to obtain a new waste-based composite material panel for construction applications with improved mechanical properties that can replace traditional wood-based oriented strand boards (OSB). The new composite material is formed by using textile wastes as a reinforcement structure and a combination of bi-oriented polypropylene films (BOPP) waste, polypropylene non-woven materials (TNT) waste and virgin polypropylene fibers (PP) as a matrix. The mechanical properties of waste-based composite materials are modeled using the Taguchi method based on orthogonal arrays to maximize the composite characteristics’ mechanical properties. Experimental data validated the theoretical results obtained.
In this study, polypropylene-based thermoformed composites have been obtained using polyester woven fabric scraps as reinforcement. Four types of matrix have been used for the experiments: biaxially oriented polypropylene bag waste (BOPP), polypropylene nonwoven waste (TNT), 50/50 BOPP/TNT waste and virgin polypropylene fibres (PP). The percentage of matrix has been varied at four levels: 20%, 30%, 40%, and 50%. The effect of matrix/reinforcement mass ratio and matrix type on the mechanical properties of composite materials has been studied. Since the composite materials are intended to replace the oriented strand boards (OSB) in construction and furniture applications, comparison with the characteristics of 8 mm OSB has been made.
Sheep furskins for medical use were tanned with non-metallic tanning materials (syntans based on phenolsulphonic acids and aromatic oxysulfones). Sanitation of medical furs was made using essential oils, with therapeutic effect, in the final treatment of tanned furs. The paper refers to obtaining and physical-chemical characterization of new products based on natural oils (eucalyptus essential oil), ethyl alcohol, non-ionogenic surfactants from the category of polyethoxylated fatty alcohols and polyethylene glycols and water, for the treatment of medical furs. Eucalyptus essential oil used to obtain new products was analysed using GC-MS and spectral analyses. The furs will be used to make natural fur articles for medical purposes (lumbar belts, knee pads, elbow pads etc.) to relieve rheumatic and muscular pain of the affected target areas, keeping the area warm and potentiating the medical treatment of the patients who suffer from these conditions.
Composite materials reinforced with textile fabrics represent a complex subject. When explaining these materials, one must consider their mechanical behavior in general, and impact resistance in particular, as many applications are characterized by dynamic strains. Impact characteristics must be considered from the early stages of the design process in order to be controlled through structure, layer deposition and direction. Reinforcement materials are essential for the quality and behavior of composites, and textile reinforcements present a large range of advantages. It takes a good understanding of the requirements specific to an application to accurately design textile reinforcements. Currently, simulations of textile reinforcements and composites are efficient tools to forecast their behavior during both processing and use. The paper presents the steps that must be followed for modelling the impact behavior of composite materials, using finite element analysis (FEM). The FEM model built using Deform 3D software offers information concerning the behavior structure during impact. The behavior can be visualized for the structure as a whole and, for different sections, be considered significant. Furthermore, the structure’s strain can be visualized at any moment. In real impact tests, this is not possible due to the very short time interval and the impossibility to record inside the structure, as well as to record all significant stages using conventional means.
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