The primary materials used in carpets are wool and silk In some cases, cotton, flax and synthetics are also used just to make the product cheaper. Most tribal or nomadic rugs are wool pile and wool foundation. However, the natural fibers are most commonly used in the hand-made carpets because of its softness and smoothness. Natural fibers incorporate the advantages of durability, beauty and value that synthetic materials can never match. The most durable, and cleanable fiber is wool. Silk carpet, however, looks more luxurious and beautiful but not so suitable to be often cleaned and thus not often used in high traffic areas.
Wool is the oldest fiber that is used to produce the carpets. It looks luxurious, feels warm, weighs not heavy and difficult to get wrinkled, but it's easy to get dirty. Therefore, wool carpet is not a good choice in humid areas because it tends to hold moisture. Compared with synthetic fibers, wool is more expensive but less than silk. The quality of wool is graded in different levels. Generally wool from high altitude areas is better than low altitude areas. Also the wool taken from the young and healthy sheep is with good quality and wool from the neck and belly part of the sheep is also quite good.
Silk is the most expensive fiber used in hand-made carpets. Silk comes from the cocoons of silk worms and China was the first country to produce the carpet with silk. Today China is still one of the places where best silk carpets are produced. When making carpets, silk can be used alone or in combination with wool. Pure silk carpet
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