in this work, leather fibers were employed as a component of elastomeric compounds based on nbr, cr and epdm and studied were made on their effects upon curing characteristics and mechanical properties of the prepared compounds. evaluation of curing characteristics of the compounds demonstrated that leather fibers have no considerable effect on initial viscosity and curing time of the compounds...

Tannery wastewater usually contains a high salinity due to the use of sodium chloride (NaCl) in curing and pickling. Although some no-pickle tanning and salt-free pickling technologies were developed, few of them have been widely used due to relatively poor mechanical and bulk properties of the resultant leather. Therefore, the role of NaCl in pickling and tanning should be elucidated in the fi...

Hygiene properties of leather shoes, which has great influence on health and comfort, mainly contains air permeability, water vapor permeability, hygroscopicity, heat preservation and antimicrobial ability. The developing situation of test technology on hygiene properties of leather shoes is summarized. Natural leather has excellent hygiene properties for its collagen fibers, each hygiene prope...

Despite the high competition of synthetic fibers leather is nowadays still widely used for many applications. In order to ensure a sufficient stability of the skin matrix against many factors, such as microbial degradation, heat and sweat, a tanning process is indispensable. Using chromium (III) for this purpose offers a multitude of advantages, thus this way of tanning is widely applied. Durin...

This investigation was focused on evaluating the utilization of Leather-waste, i.e., “Leather Shavings”, to develop “Poly(ethylene-vinyl-acetate)” (EVA) based “polymer matrix composites”. Composites with highest ratio 1:1 were developed using a rolling-mill, which then subjected hot-press molding for value-added applications, notably in “floor-covering”, “structural”, “footwear”, and “transport...

This paper reports a method for preparing artificial leather with high comfort and useful mechanical property. Blending thermoplastic polyurethane elastomer (TPU), Toluene diisocyanate (TDI) prepolymer 4,4-Methylene bis(2-chloroaniline) (MOCA), nanofiber was obtained by using online reactive electrospinning technology heat cross-linking. Compared the commercial PU leather, tensile strength of f...

Despite the fact, world leather industries are built on chromium tannage system, there is a growing interest of metal free tannages (chrome). This primarily owing to rising demand for tanning in industry. The goal this research paper was evaluate influences vegetable tannins materials retannage leather, by using Acacia nilotica ssp Adansonia pods (hydrolysable tannins) and Azadirachta indica ba...

Abstract The recycling of leather solid waste not only involves resource utilization and environmental protection but also has important significance for the sustainable development industry. In this paper, was crushed into fibers, which were stabilized mixed with nitrile-butadiene rubber (NBR). mixture milled vulcanized a composite NBR-SLF (Stabilized Leather Fiber) is prepared sealing materia...

Yeso sika deer is one of the red deer species inhabited Hokkaido and exhibits seasonal molt twice a year. We investigated seasonal variations of morphological and biochemical characteristics of yeso sika deer skin as well as physical, chemical and morphological properties of its vegetable tanned leather. Morphologically, in spring and autumn, which is just active phase of molting cycle, yeso si...