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Mechanical methods can be applied to all kind of wastes including natural originated wastes such as wool wastes, cotton wastes, etc. and synthetic and regenerated polymers originated wastes such as polyester wastes and nylon wastes. The general pro- duction steps of the method are cutting, blending and opening. The opened material, which is in web form, is fed into the spinning plants to obtain coarse yarns or fed into the non-woven plants. The mechanical method is the simplest and the most universal one when compared to the other methods. The costs are low, however generally the economical value of the product is also low.