Enhancement of Waterproofing Properties of Finished Upper Leather Produced from Bangladeshi Cow Hides

##plugins.themes.bootstrap3.article.main##

  •   Abrar Shahriar

  •   Fatema-Tuj- Zohra

  •   A.B.M. Wahid Murad

  •   Sobur Ahmed

Abstract

Waterproofness property of leather can be enhanced by modifying different steps involved in pre-tanning to finishing operations. In this study three sets of experiment were conducted where tanning and finishing techniques differed to analyze the improvement of the waterproofness property. Use of surfactants and hydrophilic agents were avoided to improve this property. Moreover, different waterproof fatliquors were used and changing of the finishes in each experiment was performed to improve and evaluate the waterproofness of leathers. Waterproofness and other physical characteristic properties were assessed following standard methods. Leather samples of experiment-3 where extensive finishing was done, showed the best result of waterproofness which is significantly higher than the minimum requirement of shoe upper leather. All other physical properties except water vapour permeability of leather samples of experiment-3 were excellent as compared to other experiments. Scanning Electron Microscopy (SEM) image of the leather sample was also analyzed. 


Keywords: Waterproofness, Surfactants, Retanning, Fatliquoring, Finishing

References

S. Dutta, An Introduction tothe Principles of Leather Manufacture, Indian Leather Technologists Association, 2000.

A. D. Covington, Tanning Chemistry-The Science of Leather, Cambridge, RSC Publishing, 2009, p. 592.

W. Herrmann, "Waterproof Leather - Requirements and Technology," Leather International, vol. 9, pp. 56-58, 2006.

R. Beeby, "Making Waterproof Footwear," World Footwear, pp. 14-22, 1996.

R. Silva, V. Pinto, F. Freitas and M. Ferreira, "Characterization of Barrier Effects in Footwear.," in Multifuctional Barries for Flexible Structures, S. Duquesne, C. Magniez and G. Camino, Eds., Springer, 2007, pp. 229-268.

A. Gulbinienė, V. Jankauskaitė and V. Urbelis, "The Influence of Laminated Leather Structure on the Water Vapour Absorption and Desorption Behaviour," Materials Science, vol. 14, no. 1, pp. 44-50, 2008.

H. Fan, L. Li, X. Fan and B. Shi, "The Water Vapour Permeability of Leather Finished by Thermally-responsive Polyurethane," Journal of the American Leather Chemists Association, vol. 89, no. 3, pp. 121-125, 2005.

Y. Zhang and L. Wang, "Recent Research Progress on Leather Fatliquoring Agents," Polymer-Plastics Technology and Engineering, vol. 48, no. 3, pp. 285-291, 2009.

L. Liao and Z. Shan, Leather Chemical and Technology, Beijing: Chemical Industry Publishing Company, 2005.

L. Georgieva, K. Krastev and N. Angelov, "dentification of Surface Leather Defects," in Proceedings of the 4th International Conference on Computer Systems and Technologies, New York, USA, 2003.

V. Valeika, J. Širvaitytė and K. Beleška, Estimation of Chrome-free Tanning Method Suitability in Conformity with Physical and Chemical Properties of Leather Materials..

S. Ahmed, "Leather Finishing and Finishes," Footwear Digest, vol. 35, pp. ii-v, 2003.

S. Ahmed and F. Zohra, "Ecological Aspects of Cross linking agents and Their Role in Leather Finishing for the Production of Finished Leather," Leather Age, vol. 2, pp. 67-71, 2011.

E. Howard and N. Oakley, "The Design and Function of Military Footwear: a Review Following Experiences in the South Atlantic," Ergonomics, vol. 27, no. 6, pp. 631-637, 1984.

E.-S. Nashy, A. Hussein and M. Essa, "Retanning Agents for Chrome Tanned Leather Based on Emulsion Nano-particles of Styrene/Butyl Acrylate Copolymers,," New York Science Journal, vol. 3, no. 11, pp. 13-21, 2010.

R. Palop and A. Marsal, "Factor influencing the waterproofing behaviour of Retanning-Fatliquoring Polymers. Part I," Journal of the American Leather Chemists Association, vol. 99, no. 10, pp. 409-415, 2004a.

R. Palop and A. Marsal, "Factors Influencing the Waterproofing Behaviour of Retanning-Fatliquoring Polymers. Part II," Journal of the American Leather Chemists Association, vol. 99, no. 11, pp. 461-467, 2004b.

M. Kaussen, "Fatliquoring Agent for Improving the Properties of Furniture and Automotive Leather,," Journal of the American Leather Chemists Association, vol. 93, no. 1, pp. 16-21, 1998.

B. Lu, J.-z. Ma, D.-g. Gao, L. Hong, J. Zhang and Q.-n. Xu., "Synthesis and Properties of Modified Rapeseed Oil/Montmorillonite Nanocomposite Fatliquoring Agent.," Journal of Composite Materials, vol. 45, no. 24, pp. 2573-2578, 2011.

B. Lihong, L. Yunjun and Z. Shufen, "Aliphatic Anionic Polyurethane Microemulsion Leather Filling-Retanning Agent," Journal of the Society of Leather Technologists and Chemists, vol. 91, no. 2, pp. 73-80, 2007.

Z. Luo, H. Fan, Y. Lu and B. Shi, "Fluorine-containing Aqueous Copolymer Emulsion for Waterproof Leather," Journal of the Society of Leather Technologists and Chemists, vol. 92, no. 3, pp. 107-113, 2008.

IUP-2, "Sampling," JSLTC, vol. 84, no. 7, 2000.

IUP-3, Conditioning, Acceptable Quality Standards in the Leather and Footwear Industry-, Vienna: UNIDO, 1996.

Downloads

Download data is not yet available.

##plugins.themes.bootstrap3.article.details##

How to Cite
[1]
Shahriar, A., Zohra, F.-T.-, Murad, A. and Ahmed, S. 2019. Enhancement of Waterproofing Properties of Finished Upper Leather Produced from Bangladeshi Cow Hides. European Journal of Engineering and Technology Research. 4, 7 (Jul. 2019), 63-71. DOI:https://doi.org/10.24018/ejers.2019.4.7.1426.