Proces štavljenja ima najvažniju ulogu u postizanju trajnosti kože, čemu pridonosi umrežavanje stabilizirajući trostruku spiralnu strukturu kolagena. Čvrstoća nastalih veza ovisi o vrsti sredstva za štavljenje. Zbog dobrih svojstava kože nakon štavljenja, kao i same učinkovitosti, danas se najčešće koriste mineralna štavna sredstva. Međutim, zbog ekoloških aspekata vegatabilno štavljenje još uv...

The stringent environmental regulations and compliance regarding leather tanning has compelled industry to seek alternative cleaner ingredients that have the capacity minimize or prevent pollution caused by hazardous chemicals. Practical measures so far involved replacing current use of synthetic chemicals such as chromium salts, dyes, fatliquors surfactants minimizing their usage incorporating...

The complex of polyacrylic and polyurethane films physical mechanical properties the operational leather decorated with them has been studied. polyacrylate protective coatings formation is performed on grain face semi-finished leather. 
 150–200 µm thick are formed from polymer solutions aqueous dispersions. Acrylic obtained a dispersion methylbutylacrylate modified by acrylic lcarboxyetha...

In order to investigate the physical leather quality characteristics of different sheep breeds, skins were obtained from Dohne Merino, Dormer, Dorper, Meatmaster, South African Mutton Merino (SAMM) and White Dorper yearlings two separate growth studies. The cured stored for 18 months (Group 1) 9 2) prior tanning. After tanning, samples butt region taken determine tensile strength distension pro...

Profile Pakistan's leather industry is one of the major foreign exchange earners for the country. About 90% of its products are exported in finished form. During 1996-97, the production of leather was about 14.3 million m and export earning amounted to US$ 642 million. There are some 600 tanneries in the formal sector and an equally large number of tanneries in the informal sector. These are co...

Proteases are catabolic enzymes that catalyze the complete hydrolysis of protein. They constitute one of the most important groups of industrial enzymes, accounting for nearly 60% of the total worldwide enzyme sale1. Keratinolytic protease is a specific protease that has immense commercial importance. It acts on keratin of the hides thus can be used in dehairing2. This enzyme along with proteas...

This article reviews the various aspects of tannin, which is finding varied uses in leather industry and pharmaceutics.

This paper presents a new methodology to detect leather defects, based on the wavelet transform. The methodology uses a bank of optimised filters, where each filter is tuned to one defect type. Filter shape and wavelet sub-band are selected based the maximisation of the ratio between features values on defect regions and on normal regions. The proposed methodology can detect defects even when s...

In this research samples from solid wastes coming out from various process steps during manufacturing of garment sheep skins, shoe upper goat skins, shoe upper hides and sole leathers have been collected. These samples have been classified among themselves and their characteristics have been determined by various chemical analysis. By characterization of solid wastes which state problems for th...