Categorising wool according to diameter texture lenght and colour
Answers
Answer:
Explanation:
A micron (micrometre) is the measurement used to express the diameter of wool fibre. Fine wool fibers have low micron value. Fibre diameter is the most important characteristic of wool in determining its value.
Every fleece comprises a very wide range of fibre diameters—for example a typical Merino fleece will contain fibres of as low as 10 microns in diameter, and there could be fibres with diameters exceeding 25 microns, depending on the age and health (or nutrition) of the sheep. What is usually referred to as wool's "micron" is the mean of the fibre diameters or average diameter. This may be measured in a number of different ways.
Small samples can be taken from the side or fleece of a sheep and measured using a portable instrument such as an OFDA2000 (Optical Fibre Diameter Analyser); or a mobile instrument system called a Fleecescan. Both these systems have been studied extensively and if used correctly, they should give reasonably reliable results. Pre wool classing micron test results are a useful guide for classers in determining lines of wool to be made. Samples of fleece can also be shorn from the animal and sent to a laboratory for measurement ("midside sampling"). Most modern fleece-testing laboratories use related instruments to those mentioned—either the OFDA models or the Laserscan. Merino stud rams are mid-side sampled and the test results are displayed in the sale catalogues.