Repository: UIHistories Project: SWE - Proceedings of the First International Conference of Women Engineers and Scientists [PAGE 80]

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South and Eastern Asia. But when we examine the world status of raw silk, the demand for raw silk has decreased. On the other hand, we see the increase of 35% in production since the year 1951 to 1960 with the annual fluctuation of increasing and decreasing. Though raw silk is not suitable for practical use, it has gracefulness. And it is believed that we can predict its continuance of demand if we introduce the study and method for improving its processing and its quality. Even though the production of raw silk has increased, the individual demand can not be met because of the increasing population. One of the reasons for the decrease of demand for raw silk is the fact that the inclination of people is changing as the world progress. Wool Wool fiber comprises sheep wool, goat wool, apaca, mohair, cashmere, camel, angola fur, common fur, cow hair, horse hair, recovered wool, etc. The main producing regions are scattered throughout England, Australia, Canada, North America, Spain, Asia and Europe. Sheep wool consists of fiber protein, the so-called keratine, and is a compound of amino acid which has rather a more complex structure than that of the fibroin of silk. The quality of wool depends on the kinds of sheep, the physical condition of the sheep, and the properties of their feeding grass. However, because of its desirable properties of strength, plasticity, and elasticity, the property of air entrainment ensures the warmth which makes it suitable for clothing. And scale, one of the characteristics of this fiber, accures the possibility of felting into wollen goods, felt hats, and so on. Nevertheless, the property of felting results in some difficulties such as shrinkage and the felting tendency of woolen clothing in washing. Hair fiber is not the type of wool which will be supplied for woven goods, but in any case this fiber is utilized for particular clothing which emphasizes some inherent property of this fiber. For instance, glossy mohair comes from the angora goat, and the main production regions are Asia, Turkey, South Africa and North America. The characteristic of the fiber is stability which is favorable for brush fabrics for furniture, blankets, jackets, etc. Cashmere hair comes from Cashmere goat, and main production regions are Tibet and North India. It is classified into soft and hard hair. Soft hair is mainly utilized for fabrics that feel soft to the touch. Camels are mainly raised in the Asia desert,and the camel hair for fiber is supplied mostly from the Bactrican type of camel with two humps in the areas of China, Afghanistan and South Siberia. Its chief use is for high grade overcoats. The alpaca lives in the Andes Range of South America, and alpaca hair is glossy and of high quality. Vicuna, llama and guanaco are also found

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