All wool is classified before it is sold. Environmental and genetic factors all have a marked influence on its properties, including fiber diameter, length, tensile strength, yield, color and bulk. These all affect the use to which the wool can be put. For example, very fine, white Merino wool is suitable for creating soft fabrics that can be dyed a wide range of colors and worn against the skin. Strong and off-colored wool from a Drys dale would make a fabric very difficult to wear, which might dyed dark colors, so it is used for carpets. In modern day wool carpets are always tested to ensure that residual from dipping or spraying the sheep are below internationally acceptable levels.
Moreover, many steps are taken in New Zealand in developing processing techniques which increase the capability of the product. In the market there are many types of 100% Wool Carpets are available.
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