Heat set carpets, are considered as the decorative floor which is soft to touch and do sound insulation of heat. It is further composed with fibers produced from numerous ways which are generating wide ranges of price. The carpet is well known floor coverings for living rooms, bedrooms and even the passing areas such as stairs and galleries or corridors. The yarns are processed in a special pattern, which is to say the heat setting, in order of building the volume for the yarns and in making the new properties which are obtained via twisting remains. Twists are set on the high temperature in the autoclave or continuous process.