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SETSCI - Volume 3 (2018)
ISAS2018-Winter - 2nd International Symposium on Innovative Approaches in Scientific Studies, Samsun, Turkey, Nov 30, 2018

Effects of Pigmentation on Some Physical and Mechanical Properties in Merino Wool Fibers (ISAS2018-Winter_188)
Rıza Atav1, Pelin Gürkan Ünal2*
1Namık Kemal University  , Tekirdağ, Turkey
2Namık Kemal University  , Tekirdağ, Turkey
* Corresponding author: pgunal@nku.edu.tr
Published Date: 2019-01-14   |   Page (s): 984-985   |    22     7

ABSTRACT In this study, fiber fineness (µm), fiber strength (cN) and elongation (%) values of white and pigmented wool samples
taken from female Merino sheeps between the ages of 0-2 years were compared. The results showed that both the fiber strength
(cN) and elongation (%) values were increased in the presence of melanin pigment which is responsible for the fiber color and
forming the cortex layer of the fibers causing higher micron values of fiber fineness. However, the difference between the
diameters of pigmented and white fibers were statistically insignificant. On the other hand, pigmentation had a statistically
significant effect on the strength and elongation properties of the black and white fibers. On the other hand, age parameter was
not found to be statistically significant. In general, it can be said that wools from elder sheep are coarser and stronger, but they
have lower elongation value.  
KEYWORDS Merino sheep, wool, pigmentation, fineness, strength
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[2] http://www.kucukbaslar.com/karacabey-merinosu/
[3] I. Tarakçıoğlu, Tekstil Terbiyesi ve Makineleri Cilt 2: Protein (Yumurta Akı) Liflerinin Terbiyesi, Uludağ üniversitesi Basımevi, 1983.
[4] N. Saito, and T. Morishima, “Eumelanin and pheomelanin contents in hair and 5-s-cysteinyldopa and 5-hydroxy-6-methoxyindole-2-carboxylic acid levels in urine in Japanese oculocutaneous albinism”, Arch Dermatol Res., vol. 283, issue 1, pp. 7-9, 1991.
[5] P. Gürkan Ünal, and R. Atav, Effects of pigmentation on some physical properties in cashmere down fibers and common goat guard hairs, 8th Balkan Animal Science Conference (BALMALNICON 2017), Abstract Book, 179, Prizren, Kosova, 6-8 September 2017 .
[6] IWTO 47, Measurement of the mean & distribution of fiber diameter of wool using an Optical Fiber Diameter Analyser (OFDA), http://www.ofda.com/Natural_fibers/Ofda2000.html /10.02.2017.
[7] https://www.astm.org/Standards/D3822.htm, 10.02.2017.
[8] N. Seventekin, Tekstil Kimyası, Ege Üniversitesi Tekstil ve Konfeksiyon Araştırma-Uygulama Merkezi Yayınları, Bornova-İzmir, 2004.

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