Assessment of protective properties of leather materials obtained using ecologically safe mineral compositions
DOI:
https://doi.org/10.15587/2312-8372.2015.51011Keywords:
leather, special shoes, mineral composition, property, natural minerals, safety, qualityAbstract
Special production footwear is the primary means of personal protection from harmful factors, which purpose is to guarantee human safety in the workplace. Accordingly, shoe materials that are used in the production of the shoes should have increased protective properties.
The results of tests of leather materials obtained using ecologically safe mineral compositions of natural origin have been presented in the article. The influence of the mineral content of semi-finished leather on operational, environmental and safety properties of finished leather and suitability for the manufacture of top of special protective footwear have been determined.
During the studies the environmental safety of researched skins for external and internal parts of uppers by setting exposure Cr (VI), formaldehyde and heavy metals and their comparison with MPC for materials of the first category that have contact with the skin of the foot have been evaluated.
Moisture, water resistance and hygroscopic properties of skin have been defined by setting parameters of moisture, water yielding capacity, water adsorption in dynamic conditions, moisture soaking in static and dynamic conditions, wet and moisture content of leather for 2 and 24 hours.
Thermal resistance of leather has been determined by determining the thermal resistance of the material to burning with hot metal, heat exposure 200 ºС in air-dry condition and to the influence of hot surfaces.
To predict the sustainability and reliability of footwear without loss of functional properties, changes of physical and mechanical properties have been defined after aging of researched skins at low and high temperatures. Also defects have been evaluated on samples after repeated bending at ambient and low (-15 ºС) temperatures.
The results show the feasibility of using animal skins with mineral filling for making comfortable, environmentally friendly footwear with high humidity, water and thermal resistant properties.
References
- GOST 12.4.103-83. Special Protective Clothing, agents for protection feet and hands. Available: http://www.ohranatruda.ru/ot_biblio/normativ/data_normativ/4/4702/index.php
- EN ISO 20345:2007/A1:2012. Individual protection means. Safety shoes. Available: http://www.arvel.ru/articles.php?id=7
- Mokrousova, O., Karvan, S., Kozar, O. (2014). Formation of performance properties of leather materials with mineral fillers. Bulletin of Khmelnytsky National University, 2 (211), 82–88.
- Kozar, O., Mokrousova, O. (2013). Eco-friendly technologies of leather manufacturing using natural minerals montmorilonite and zeolite. Technology Audit And Production Reserves, 6(2(14)), 11–15. Available: http://journals.uran.ua/tarp/article/view/19499
- Bao, Y., Yang, Z., Ma, J. (2007). Tanning mechanism of vinyl polymer/montmorillonite nanocomposite tannage. Journal of the Society of Leather Technologists and Chemists, Vol. 91, № 4, 162–167.
- Ma, J., Chu, Y., Dangge, G., LV Bin, D. J. (2005). Preparation and application of vinyl polymer MMT nano tanning agent. Journal of the Society of Leather Technologists and Chemists, Vol. 89, № 5, 181–185.
- Kozar, O., Mokrousova, O., Lishchuk, V., Konoval, V. (2014). Cutting properties of leather material, filled with naturally occurring minerals. Technology Audit And Production Reserves, 1(2(15)), 13–17. doi:10.15587/2312-8372.2014.21248
- Kozar, O. P., Mokrousova, O. R., Konoval, V. P. (2013). Evaluation of relaxation-deformation characteristics of leather for shoe uppers, filled with natural minerals. Bulletin of Kyiv National University of Technologies and Design, 4, 107–115.
- Kozar, O. P., Mokrousova, O. R., Wozniak, B. (2014). Deformation characteristics of leather for shoe upper, filled with natural minerals. Journal of Chemistry and Chemical Engineering (USA), 8, 47–53.
- Kozar, O., Konoval, V., Wozniak, B., Olenich, A. (2014). Algorithm of stretching adjustment of leather with mineral filling. Eastern-European Journal Of Enterprise Technologies, 3(5(69)), 43–47. doi:10.15587/1729-4061.2014.24651
- Kozar, O., Konoval, V., Wozniak, B., Olenich, A. (2014). Mathematical model of adjustment stretching shoe leather material with mineral filling. Eastern-European Journal Of Enterprise Technologies, 2(6(68)), 50–56. doi:10.15587/1729-4061.2014.23332
- Kozar, O. P. (2014). The maintenance properties of leathers with mineral fillers for protective shoes. Proceedings of the 1st International Conference – Science for Business: Innovations for textiles, polymers and leather, 14 October 2014. Lodz (Poland). Available: http://www.ips.lodz.pl/index.php/pl/konferencje
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