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Information about Wool Classing

Wool classing is a profession designed for the sole purpose of grading the spinning capacity or designated purpose for the wool produced. This is carried out by examining the characteristics of the wool in its raw state. The characteristics which a wool classer may examine are:

Wool crimp: The number of bends per unit length along the wool fiber approximately indicates spinning capacity of the wool. Fibers with a fine crimp have many bends and usually have a small diameter. Such fibers can be spun into fine yarns, with great lengths of yarn for a given weight of wool, and greater market value. Fine fibres may be utilised in the production of fine garments such as men's suits whereas the coarser fibres may be used for the production of carpet and other sturdy products. Crimp is measured in crimps per inch or crimps per centimetre. Average diameter or mean fibre diameter is measured in microns which is one millionth of a metre. For generations, English wool-handlers categorized wool along the above lines estimating spinning capacity by eye and touch. This spread worldwide as the Bradford system.

Wool Strength (also known as tensile strength) determines wool's ability to withstand processing. Weaker wools produce more waste in carding & spinning. Weaker wools may be used for production of felt etc.

Wool color: Indicates whether wool is able to be dyed in light shades. Color may be graded depending upon the natural color, impurities and various stains present. Severely stained wool decreases prices dramatically. However, it is difficult to assess colour accurately without proper measurement, since some stains will wash out in the processing, whereas others are quite persistent.

The parts of wool taken from a sheep are graded separately. The fleece forming the bulk of the yield is placed with other fleece wool as the main line, other pieces such as the neck, belly and skirtings (inferior wool from edges) are placed together and sold for such purposes where the shorter wools are required. (for example fillings, carpets, insulation) Whilst in some places crimp may determine which grade the fleece will be placed into, this subjective assessment is not always reliable and processors prefer that wools are measured objectively by qualified laboratories. This enables primary producers to place wool into bales of consistent quality, to send for sale, thus maximising returns by selling the wool according to quality and weight.
profession is an occupation, vocation or career where specialized knowledge of a subject, field, or science is applied.[1] It is usually applied to occupations that involve prolonged academic training and a formal qualification.
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Grade may refer to:

In education

  • Grade (education), a teacher's evaluation of a student's performance or achievement
  • Grade level, the numbering of the year a student has reached in school.

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Spinning is the process of creating yarn (or thread, rope, cable) from various raw fiber materials.

Process

In spinning, separate fibers are twisted together to bind them into a long, stronger yarn.
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Wool is the fibre derived from the fur of animals of the Caprinae family, principally sheep, but the hair of certain species of other mammals such as goats, llamas and rabbits may also be called wool. This article deals explicitly with the wool produced from domestic sheep.
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original research or unverifiable claims.
* It may contain an of published material that conveys ideas not verifiable with the given sources. Please help add reliable sources about the topic "August 2007."
* It does not cite any references or sources.
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Suit is a term with various meanings:
  • A lawsuit, an action brought before a court, as to recover a right or redress a grievance.
  • Suit (clothing), a combination of clothing, such as a jacket and matching trousers,

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A carpet is any loom-woven, felted textile or grass floor covering. The term was also used for table and wall coverings, as carpets were not commonly used on the floor in European interiors until the 18th century.
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A micron (micrometre) is the measurement used in wool classing to measure the actual diameter of a wool fibre. The smaller the number the finer the fibre.

Every fleece comprises a very wide range of fibre diameters - for example a typical merino fleece will contain fibres of
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The Bradford system (also known as the English Worsted Yarn Count System or spinning count or Bradford count) is a way to assess the quality of wool.
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Tensile strength , or measures the force required to pull something such as rope, wire, or a structural beam to the point where it breaks.

Explanation


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Felt is a non-woven cloth that is produced by matting, condensing and pressing fibers. The fibers form the structure of the fabric. While some types of felt are very soft, some are tough enough to form construction materials.
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Color or colour[1] (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red, yellow, blue, black, etc.
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dye can generally be described as a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber.
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Fleece may refer to:
  • The woolen coat of a domestic sheep, especially after having been sheared (but before being processed into yarn or thread);
  • A general term for a soft bulky fabric with deep pile.

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Yield may mean:
  • Crop yield, a measure of the output per unit area of land under cultivation
  • Maximum sustainable yield, the largest long-term fishery catch that can be safely taken
  • Rolled throughput yield, a statistical tool in Six Sigma

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Bale can refer to any of the following:

Places

  • Basel, the Swiss city, for which the French name is Bâle
  • Bale, Istria, Croatia
  • Balé Province, Burkina Faso
  • Bale Province, Ethiopia, a former province in Ethiopia
  • Bale Zone in Oromia, Ethiopia

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