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2012, vol. 53, iss. 2, pp. 102-108
Determination of some chemical and physico-mechanical indicators of Albanian leather
aTextile and Fashion Department, Mechanic Engineering Faculty, Polytechnic University of Tirana, Tirana, Albania
bIndustrial Chemistry Department, Natural Science Faculty, University of Tirana, Tirana, Albania
Keywords: leather; ISO standards; chemical and physico-mechanical characteristics
Abstract
This study is focused in measuring some chemical and physico-mechanical indicators like untanning, determination of humidity, pH, thickness, determination of leather side resistance along flexing, determination of tensile strength and percentage elongation in different Albanian leathers. Leather industry is one of the most important. Leather is one of the last remaining natural materials in our high- tech world of teflon, rubber and synthetic materials. For this reason, leather is one of the most important and usable materials in various fields. Leather processing from row skin/hide up to end product passes through several stages. In order to obtain such a versatile end product from a simple animal skin, this material has to be subjected to numerous processes, which are: preservation, soaking, liming, tanning and finishing. Each of these processes play a decisive role in giving and preserving important leather characteristics to the end product. Control of each of these processes is very important to avoid defects that can arise during these leather processing, as well as to make it more stable against of swell, decay, action of high temperatures, action of microorganisms (microbes and enzymes) etc. We did chemical and physico-mechanical analysis according ISO standards. Selection of tests samples is done in a random way. Evaluation of some of these indicators is done according to www.ctlleather.com/ctl_clearance_products in the absence of technical specifications.
References
*** (2002) S SH 1150 Leather: Sampling location
*** (2002) S SH EN ISO 3376 Leather: Physical and mechanical tests: Determination of tensile strength and percentage elongation
*** (2002) S SH EN ISO 2418 Leather: Chemical, physical and mechanical and fastness tests: Sampling location
*** (2002) S SH EN ISO 2419 Leather - Physical and mechanical tests - Sample preparation and conditioning
*** (2008) S SH EN ISO 4044 Leather - Chemical tests. Preparation of chemical test samples
*** (1989) S SH 1150-9 Leather - Determination of humidity
*** (2002) S SH EN ISO 4045 Leather - Determination of pH
*** (1989) S SH 1150-20 Leather - Determination of untanning
*** (1989) S SH 1150-6 Leather - Determination of leather side resistance along flexing
*** (2002) S SH EN ISO 2589 Leather - Physical and mechanical tests - Determination of thickness
 

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article language: English
document type: Scientific Paper
published in SCIndeks: 22/03/2013

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