نتایج جستجو برای: leather properties

تعداد نتایج: 871321  

Journal: :Okajimas folia anatomica Japonica 2012
Jun A Minaguchi Ayako Abe Hiromi Ueda Prasarn Tangkawattana Kazushige Takehana

The Hokkaido sika deer (Cervus Nippon yesoensis), the largest and most abundant of the sika deer subspecies in Japan, has recently attracted new attention as a target for leather production, in addition to its meat value. To provide fundamental data for facilitating the effective use of skin for leather, the histological properties of skin at the shoulder, back and abdominal regions of male and...

Journal: :Advanced Robotics 2014
Shuhei Asano Shogo Okamoto Yoichiro Matsuura Yoji Yamada

For industrial purposes such as product design, texture displays should deliver a quality sense of touch to users. We have developed a vibrotactile texture display that uses real materials such as fabric, wood, and leather to enable the presentation of quality textures to users. By applying two types of vibrotactile stimuli to users’ finger pads through the materials, their fine and macro rough...

1989
J. M. A. Smith

Leather is derived from the hides of skins of animals. It is a remarkably durable, strong and versatile material, which in its various forms has been made into objects ranging from African shields and drums to European saddles and kinky underwear. From as early as 2700 BC until fairly recently leather was also in the forefront of information technology with its use (as skins, vellum and parchme...

2007
P. K. Jain P. K. Nema

A study was conducted to evaluate the quality of the leather from five different cultivars (Red Fleshed, Allahabad Safeda, Lucknow-49, Chittidar, Apple Colour of guava. Leather quality was also observed using three different recipes for its preparation. The study revealed that organoleptic quality (i.e. colour, flavour, taste, texture and overall acceptability) of leather decreased gradually wi...

Journal: :Journal of Leather Science and Engineering 2022

Abstract Nowadays, diverse leather usage conditions and increasing demands from consumers challenge the industry. Traditional manufacturing is facing long-term challenges, including low-value threshold, confined application fields, environmental issues. Leather inherits all biomimetic properties of natural skin such as flexibility, sanitation, cold resistance, biocompatibility, biodegradability...

2014
Juan C. Colmenares Paweł Lisowski Jose M. Bermudez Jaume Cot Rafael Luque

Carbonaceous N-containing materials derived from leather skin residues have been found to have unprecedented photocatalytic properties as compared to P25 Evonik, with an interesting degradation potential for contaminants in water (e.g. phenol). The carbonaceous materials were prepared by carbonization of the leather skin residues at different temperatures (180-600oC). Different crystalline spec...

2015
Hannah C. Wells Katie H. Sizeland Richard L. Edmonds Nigel Kirby Adrian Hawley Stephen Mudie Richard G. Haverkamp

Strength is an important property of leather. However the structural basis of strength in leather is not well understood. We have used synchrotron based small angle X-ray scattering to investigate the structure and strength of collagen materials under a variety of conditions. This enables changes in the extent of orientation of the collagen fibrils to be quantified and the internal stress on th...

2015
A. B Habib

This study was conducted to identify some of ante and post-mortem surface defects in Sudanese raw sheep and goat skins and to evaluate the effect of some of these defects on some of the key physical properties of the leather produced. The results indicated that most of the ante-mortem defects disappear during the tannage, re-tannage and finishing operations. However some defects remain visible ...

Journal: :Molecules 2011
Frederik H Romer Andrew P Underwood Nadine D Senekal Susan L Bonnet Melinda J Duer David G Reid Jan H van der Westhuizen

Solid state ¹³C-NMR spectra of pure tannin powders from four different sources--mimosa, quebracho, chestnut and tara--are readily distinguishable from each other, both in pure commercial powder form, and in leather which they have been used to tan. Groups of signals indicative of the source, and type (condensed vs. hydrolyzable) of tannin used in the manufacture are well resolved in the spectra...

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