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Cashmere wool, usually simply known as cashmere, is a luxury fiber obtained from cashmere goats and other types of goat. The word cashmere is an old spelling of Kashmir, the geographical region in northern India and Pakistan.
Common usage defines the fiber as wool but it is finer and softer than sheep's wool. Some say it is hair, but as seen below, cashmere requires the removal of hair from the wool. Cashmere is finer, stronger, lighter, softer, and approximately three times more insulating than sheep wool.
In the United States, under the U.S. Wool Products Labeling Act of 1939, as amended, (15 U. S. Code Section 68b(a)(6)), states that a wool or textile product may be labelled as containing cashmere only if the following criteria are met:
- such wool product is the fine (dehaired) undercoat fibers produced by a cashmere goat (Capra hircus laniger);
- the average diameter of the fiber of such wool product does not exceed 19 microns; and
- such wool product does not contain more than 3 percent (by weight) of cashmere fibers with average diameters that exceed 30 microns.
- The average fiber diameter may be subject to a coefficient of variation around the mean that shall not exceed 24 percent.
Modal is a type of rayon, a semi-synthetic cellulose fiber made by spinning reconstituted cellulose, in this case often from beech trees. Modal is used alone or with other fibers (often cotton or spandex) in clothing and household items such as pajamas, underwear, bathrobes, towels, and bedsheets.
Modal is processed under different conditions to produce a fiber that is stronger and more stable when it is wet than standard rayon, yet has a soft feel, similar to cotton. It can be tumble dried without damage due to its increased molecular alignment. The fabric has been known to pill less than cotton due to fiber properties and lower surface friction.
Micro-Modal is a variant of Modal textiles. The material is softer than cotton and has desirable properties that include higher resistance to shrinking and moisture wicking.