Sound insulation constitutes one of the major requirements for human comfort today. Sound insulation requirements in automobiles, manufacturing environments, and equipments, generating higher sound pressure, strives the need to develop more efficient and economical ways of producing absorption materials. Traditionally, economics of the research has enforced the researche to focus on industrial nonwoven textile waste. Recently hygene and environmental protection has become another major requirement, resulting in more environmentally benign, natural materials to be used in such applications....