ANALYSIS OF LOCAL WOOL PRODUCTION STATUS AND MAIN PHYSICAL AND MECHANICAL CHARACTERISTICS OF LOCAL WOOL
Main Article Content
Abstract
The increasing need for natural textile fibers has reignited interest in wool production in the Republic of Uzbekistan, where today, Karakul, Jaidari, Hisar and Edilbay sheep are the main sources of raw wool. These breeds and their origin and distribution have been well documented, though there are few data on the physico-mechanical properties of their fibre effective factors including the environmental and processing factors to wool quality. This work fills this gap by investigating local wool post primary processing with respect to structure, dimensions, contaminant levels and technological performance. In spring and autumn, wool samples were taken from Karakul and Jaidari sheep and investigated under controlled conditions of shearing, moisture, drying and sorting. Results reveal significant differences of plant residues, mineral impurities and oil-sweat among breeds and over seasons. They showed that the total waste in spring wool was about 19–20%, with higher levels of mineral impurities in Jaidari wool (coarser structure of wool) and higher content of plant residues in Karakul wool (a larger content of fine tivit fibers). Contamination was generally lower during autumn shearing. The implication is that wool cleanness and yield are dramatically influenced by breed characteristics, feeding conditions and the timing of shearing. Findings emphasize the need to adopt optimized shearing schedules; finer sorting and combing technologies; and more efficient breeding management practices to maximize the clean, high-quality wool yield for textiles in Uzbekistan.
Article Details
Issue
Section
How to Cite
References
[1] Kuprashevich V. I., General Technology of Wool Production. Moscow: Light and Food Industry, 1981, 136 p.
[2] Korabelnikov R. V. and Khojimatov R. S., “Method for Cleaning Wool from Foreign Impurities,” Patent DP No. 2356, Mar. 12, 1994.
[3] Yusupov S. A., Improving the Technology of Processing Local Wool Fibers. PhD Dissertation, Tashkent Institute of Textile and Light Industry, Tashkent, 2004.
[4] Korabelnikov O. M., “Characteristics of Karakul Wool and Its Rational Use,” Textile Industry, no. 3, pp. 37–38, 1984.
[5] Alimova Kh. A., Qodirov Sh. A., and Yusupov S. A., “Possibilities of Producing Local Wool Fibers in Uzbekistan,” Silk, 2000, no. 1.
[6] Gorbunova L. S., Rogachev N. V., Vasiliev L. G., and Koldoev V. M., Primary Processing of Wool. Moscow: Light and Food Industry, 1981, 352 p.
[7] Qayumov J. A., Ergashev J. S., Khojimatov R. S., and Dadaboyev F. M., Patent IAP 06781, “Device for Opening and Shaking Unwashed Wool.”
[8] Rogachev N. V. and Fedorov V. A., Primary Processing of Wool. Moscow: Light Industry, 1967.
[9] Gusev V. E., Raw Materials for Woolen and Nonwoven Products and Primary Processing of Wool. Moscow: Light Industry, 1977.
[10] Nikolaev A. I., Wool Commodity Science. Tashkent: O‘qituvchi Publishing, 1967.
[11] Korabelnikov R. V., Mechanics of Ginning Fine-Fiber Cotton. Tashkent: Fan Publishing, 1990.
[12] Kayumov J., Nazarova M., Obilov B., and Dadaboyev F., “Analysis of the Composition and Physical-Mechanical Properties of Raw Materials for Thermal Insulation Fabrics,” Engineering, 2021.
[13] Dadaboyev F., Qayumov J., and Khojimatov R., “Study and Improvement of Designs of Preliminary Wool Cleaning Machines,” in Proceedings of the International Conference of NamMTI, 2021.
[14] Vegetable Matter in Australian Wool, Australian Wool Testing Authority Ltd., Victoria, 1986.
[15] Korabelnikov R. V., Khojimatov R. S., Rakhmatullaev M. U., Ghoibnazarov E., and Khojiev A. A., “Method for Cleaning Wool from Foreign Impurities,” Patent DP No. 2356, 1994.
[16] Dadaboyev F., Ergashev J., Qayumov J., and Ergashev J., “Improving Technologies of Primary Wool Processing,” in Proceedings of NamMTI International Conference, 2021.
[17] The Woolmark Company, “Wool Fibre Information.” Available: https://www.woolmark.com/fibre/
[18] Wikiwand, “Uzbekistan.” Available: https://www.wikiwand.com/uz/
[19] Qomus, “Wool Industry.” Available: https://qomus.info/encyclopedia/cat-j/jun-sanoati-uz/
[20] DoctorWool, “Interesting Facts About Merino Wool.” Available: https://doctorwool.com/statii/interesnyie-faktyi-o-shersti-merinosov