DETERMINATION OF SOME PHYSICAL CHARACTERISTICS OF ARTIFICIALLY AGED CHROME TANNED GARMENT LEATHER

Year 2012, Volume: 22 Issue: 1, 64 - 69, 31.03.2012

Nuray Olcay Işık Hüseyin Ata Karavana

Abstract

The aim of this study was to determine the physical changes that might occur in chrome-tanned garment leathers with artificial ageing. For this purpose, a study was conducted on eight pieces chrome-tanned sheep leathers for garment. All leathers were artificially aged by employing the ageing factors of temperature, temperature + UV ray and temperature + humidity. Then, the changes that occurred in the characteristics of artificially-aged leathers were determined by means of some physical tests. According to the findings, it was ascertained that the artificial ageing factors of temperature + UV ray, temperature, and temperature + humidity (in a descending order) caused significant losses of quality on garment leathers. Moreover, decrease in the tensile strength and tear load, fall in the shrinkage temperature and fading in the color of the artificially-aged garment leathers were ascertained. 

Keywords

Garment leather, Artificial ageing, Ageing factors, Physical change

References

• 1. Allara, D.L., 1975, “Aging of polymers”, Environmental Health Persrectives, 11, pp: 29-33.
• 2. Bajza, Z., Hitrec, P., Muzic, M. et al., 2004, “Experimental studies in restoration and conservation of historical leather”, Journal of the Society of Leather Technologists and Chemists, 88, pp: 18-22.
• 3. Daniels, R., Landmann, W., 2005, “Hides and skins: temperature and physical change”, World Leather, 5, pp: 44.
• 4. Liu, C.K., Latona, N.P., Ashby, R. et al., 2006, “Environmental effects on chrome-free leather”, Journal of the American Leather Chemists Association, 101, pp: 368-375.
• 5. Richardin, P., Chahine, C., Copy, S. et al., 1996, “Gas chromatography – mass spectrometry identification of collagen breakdown products in naturally and artificially aged leathers”, Journal of the American Leather Chemists Association, 91(1), pp: 2-17.
• 6. Çandar, V., Segura, R., Zorluoğlu, Y., 1999, “Aging phenomena and prevention techniques on Leather”, DETEK Leather Symposiom, Maslak, İstanbul.
• 7. Kellert, H. J., Hummel, A., Germann, H. P., 2000, “The ageing behaviour of leather”, World Leather, 13(3), pp: 48-53.
• 8. Çandar, V., Palma, J. J., Zorluoğlu, Y. et al., 2001, “The many faces of agening”, IULTCS Congress, London.
• 9. Schwaiger, W., Franken, M., Heinzelman, F., 2001, “The effect of products and production processes on the ageing properties of automotive upholstery leather”, IDC, (06), pp: 26-30.
• 10. Exposito, J., Becker, C., Ruch, D. et al., 2007, “Study of polymer material aging by laser mass spectrometry, UV-visible spectroscopy, and environmental scanning electron microscopy”, Research Letters in Physical Chemistry, p. 5.
• 11. Beck, P.J. and Rowlands, R.J., 1970, “Physical properties and the degree of bilateral symmetry between matched sides of leather”, Journal of the American Leather Chemists Association, 65 (5), pp: 112-124.
• 12. TS EN ISO 17228, 2009, “Deri - Renk Haslık Testleri - Hızlandırılmış Yaşlanma Sonucu Renkte Değişim”, Türk Standartları Enstitüsü (TSE), Ankara.
• 13. TS 4120 EN ISO 3380, 2005, “Leather - Physical and mechanical tests - Determination of shrinkage temperature up to 100 ºC”, Turkish Standart Institution, p. 9.
• 14. TS 4119 EN ISO 3376, 2006, “Leather – Physical and mechanical tests - Determination of tensile strength and percentage extention.”, Turkish Standart Institution, p. 9.
• 15. TS 4118-2 EN ISO 3377-2, 2005, “Leather – Physical and mechanical tests; Determination of tear load - Part 2: Double edge tear”. Turkish Standart Institution, p. 7.
• 16. CIE, “Colorimetry 2nd Ed., CIE Publication No.15.2”, Commission Internationale de I’Eclairage, Vienna, 1986.
• 17. Sarı, Ö., 2005, “Lecture notes on leather analyse and quality control”, Ege University, Bornova (unpublished).
• 18. Kanagy, R., 1965, “Physical and performance properties of leather. In: O’Flaherty, F., Roddy, W.T., Lollar, R.T. (eds.)”, The Chemistry and Technology of Leather, Reinhold Publishing Corporation, New York, pp. 369-417.
• 19. Sharphouse, J.H., 1989, “Leather Technican’s Handbook, Leather Producers’ Association”, Northampton, 575p.
• 20. UNIDO, 1996, “Acceptable Quality Levels in Leathers, United Nations Publications, Sales” Nr. E.76 II.B.G., New York.
• 21. Aslan A., Gürbüz G., 2011, “Evaluation of chrome-tanned leather solid wastes as lubricating filler agents”, Tekstil ve Konfeksiyon, 21(4), pp: 405-409.
• 22. Başaran B., Bitlisli B.O., Ocak B., Önem E., 2011, “Effect of different atmospheric conditions on some physical properties of leather”, Tekstil ve Konfeksiyon, 21(2), pp: 194-197.
• 23. BASF, 2009, “Pocket book for the leather technologist”, http://visdombasfcrm.com/lp/Blue%20book.pdf (04 December 2011).
• 24. Selvarangan, R., Duraiswamy, B., Rathnaswamy, V., 1982, “Alternative E.I. Leather”, Leather Science, 29(9), pp: 425-428.
• 25. Gustavson, K.H., 1956, “The Chemistry and Reactivity of Collagen, Academic Pres Inc”., New York, 342 p.
• 26. Sidney, L. Jay, Jr., 1991,“Color control for the leather industry”, Journal of the American Leather Chemists Association, 86, pp: 353-363.
• 27. Abril, M., Campo, M. M., Önenç, A. et al., 2001, “Beef colour evolution as a function of ultimate pH”, Meat Science 58, pp: 69-78.
• 28. Baloğlu, E., Hızarcıoğlu, S.Y., Karavana, H.A., 2004, “An alternative evaluation method for swelling studies of bioadhesive tablet formulations”, Pharmaceutical Development and Technology 9, p. 1-5,
• 29. Marjoniemi, M., Mäntysalo, E., 1992, “Studies on multicomponent spectroscopic analysis of dye solutions”, Journal of the American Leather Chemists Association, 87, pp: 249-258.
• 30. Kim, W.J., Heo, J.S., Shin, S.B. et al., 2003, “Measurement of colour difference in the leather dyeing process with natural dyes”, Journal of the Society of Leather Technologists and Chemists, 87, p: 25-29.
• 31. Randall, D. L., 1994, “Color measurement and control in leather”, Journal of the American Leather Chemists Association, 89, pp: 309-319.
• 32. Bitlisli, B.O., Karavana, H.A., Başaran, B., et al., 2004, “The effect of conservation defects on the suede quality of doubleface”, Journal of the American Leather Chemists Association, 12, pp: 494-501.