A review on the thermal and acoustic insulation properties of hand-woven woolen carpets

Abstract

For centuries, carpet has been one of the prominent cultural tools in representing Iranian customs, traditions and culture from one generation to another. Hand-woven carpet has been produced in Iran for a long time, as artistic handicrafts as well as for daily use. Iranian handwoven carpets have an original and unique identity in terms of raw materials, weaving tools, weaving methods and designs. The characteristics of hand-woven carpets are examined from both aesthetic and practical perspectives. From the practical point of view, the properties of thermal insulation, acoustic insulation, and the performance of hand-woven carpets as a floor covering have been studied. A review of the literature shows that most of the research reports have been published in applying hand-woven carpets. The focus on other aspects such as the physical-mechanical properties, durability as a floor covering, the thermal and acoustic insulation properties of carpets, and the effect of construction parameters and texture variables has rarely been studied. In the present article, an attempt is made to review the literature and focus specifically on the functional properties of thermal and acoustic insulation of hand-woven carpets and to discuss the benefits of wool fibers as pile. Optimal thermal and acoustic insulation properties of hand-woven woollen carpets, along with the benefits of comfort, natural ability to improve indoor air quality, safety, and beauty, give consumers a good sense of satisfaction and will have a significant impact on the perceived quality.