Comparision of different tanning methods on physical characteristics of ostrich leather

Salehi, Mahnaz; Mirabdolbaghi, Jaleh; Kamali Sarvestani, Mohammad Ali

doi:10.22059/jap.2012.28889

Comparision of different tanning methods on physical characteristics of ostrich leather

Authors

Mahnaz Salehi

Jaleh Mirabdolbaghi

Mohammad Ali Kamali Sarvestani

https://doi.org/10.22059/jap.2012.28889

Abstract

The study was consequently investigated effect of different tanning methods on apparent density, thickness, tensile strength and also extension percentage in three different tanning (chromic, alum and vegetable) of grown part of ostrich skins (n = 15; 12 to 14 months). Average apparent density and thickness of leathers were 0.7 ± 0.0gr/cm2 and 1.7 ± 0.1 mm, respectively. The breaking load, tensile strength and extension of chromic tanning leather (33.0 ± 4.9 kgf, 197.2 ± 23.9 kgf/cm2 and 53.3 ± 7.0 percent) were more than alum tanning leather (27.4 ± 5.5 kgf, 161.7 ± 26.7 kgf/cm2, 46.4 ± 7.8 percent) and vegetable tanning leathers (13.0 ± 4.5 kgf, 70.7 ± 21.8 kgf/cm2 and 40.1 ± 6.4 percent). However, the best physical quality was found in the chromic tanned leather for ostrich skin proccesing related to alum and vegetable leathers.

Keywords

Alum tanning

Chromic tanning

extension

Tensile Strength

Vegetable tanning

20.1001.1.20096776.1391.14.1.2.3

1 . احمدی س (1369) تکنولوژی پوست و چرم. مؤسسه استاندارد و تحقیقات صنعتی ایران. تهران، ص 65.

2 . صالحی م.، زاخری ج.، طاهرپور دری ن.، انصاری رنانی ح.
م. و لطف‌الهنیا ب (1389) شناخت خصوصیات پوست بزهای بومی ایران به منظور درجه‌بندی و دسته‌بندی آنها. مؤسسه تحقیقات علوم دامی کشور.

3 . صالحی م.، ‌طاهرپور دری ن.، سرحدی ف. و لطفالهنیا ب (1385) بررسی ویژگی‌های الیاف و پوست حاصل از دورگه‌های شتر در مقایسه با شترهای یک‌کوهانه. مؤسسه تحقیقات علوم دامی کشور.

4 . مؤسسه استاندارد و تحقیقات صنعتی ایران (1380، 1381، 1385 و 1386) استانداردهای شماره 78، 880، 6971، 6967، 879 و 1391.

5 . Afsar A, Gülümser G, Özgünay H and Akyüz F (2002) A study on processing of ostrich leathers and determination of their properties. Ege Universitesi Ziraat Fakultesi Dergisi. 39(3): 136-143.

6 . Cloete S, Van WP Schalkwyk SJ Brand TS Hoffman LC and Nel CJ (2006) The effects of dietary energy and protein concentrations on ostrich skin quality. South African Journal of Animal Science. 36(1): 40-44.

7 . Cloete S, Van WP Schalkwyk SJ Hoffman LC and Meyer A (2004) Effect of age on leather and skin traits of slaughter ostriches. South African Journal of Animal Science. 34(2): 80-86.

8 . Mellett FD, Fischer P and Böhme HM (1996) Grading ostrich skins. Proceeding of European Ostrich Con., November, Hengelo, Nederlands. European Ostrich Association, Banbury, UK.

9 . Sivasubramanian S, Murali B Manohar A Rajaram A and Puvanakrishnan R (2008) Ecofriendly lime and sulfide free enzymatic dehairing of skins and hides using a bacterial alkaline protease. Chemosphere. 70(6): 1015-1024.

10 . Von Hoven TM (2002) Characterization of alligator, ostrich and emu skins and comparisons to traditional leathers. Ph.D. Thesis. Louisiana State University. USA.

11 . Wikipedia (2012) Common related to leather. Available online at: //www.Wikipedia.com