منابع مشابه
Wool Grading
The American or Blood System The American system of grading wool was developed in the early 1800s when the native coarse-wooled sheep were being bred to finewooled Merino rams imported from Spain. It assumes that the offspring of the cross would have fleeces which were intermediate in fineness between the two parents. The wool grade is defined as the percentage of Merino blood carried by the sh...
متن کاملLipid Role in Wool Dyeing
The textile industry uses different fibers obtained from various animals, of which the wool from domesticated sheep Ovis aries is commercially the most important. Dyeing is one of the most important finishing procedures of wool processing. It almost invariably involves absorption of water-soluble colorants from aqueous solutions by the fibers. Diffusion is the process by which the colorant mole...
متن کاملOxidation of Wool : Effect of Hydrogen Peroxide on Wool
The purpose of this investigation was to provide quantitative data showing the effect of oxidizing agents on wool as a basis for studying all processes in which wool is exposed to oxidation reactions. The work reported in this paper deals only with the effect of hydrogen peroxide. Data are presented showing the effects on wool of varying the concentration, temperature, and pH of the hydrogen pe...
متن کاملNatural Wool Fabrics in Physiotherapy
Prevention of heat loss, thermal insulation and heat treatment play an important role in physiotherapy. For example, peripheral vascular disease associated with metabolic diseases (e.g., diabetes, arteriosclerosis), arthritis, paresis and paralysis of peripheral nerves all require interventions involving heat therapy. Wool products such as garment linings, shoulder-straps, knee pads and lumber ...
متن کاملMedieval Sheep and Wool
I 'N THE PAPER I wrote twenty years ago on the origins of British breeds of sheep, I .attempted to integrate new evidence from archaeology with older documentary evidence.' Medieval archaeology was in its infancy, and the bone remains from sheep gave little information. Illustrations in illuminated manuscripts and later paintings gave better evidence than records. But the most striking new and ...
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ژورنال
عنوان ژورنال: Australian Journal of Agricultural Economics
سال: 1980
ISSN: 0004-9395
DOI: 10.1111/j.1467-8489.1980.tb00374.x