DEVELOPMENT OF HIGHLOFT NONWOVEN MATERIALS FOR HEALTH CARE ACOUSTICS

Abstract

Noise pollution can impart hearing impairment, hypertension, ischemic heart disease, annoyance, and sleep disturbance in huma n being. Continuous
hearing of sound of 90 decibels make fatigue in hearing organs. Equipment sound more than 90 decibels will lead to damage of eardrums. Prolonged
sound pollution will lead to permanent hearing disability. It will also create various types of temporary physiological changes, such as hypertension,
change of the rate of heart-beat, high respiratory rates, excessive perspiration and vomitary tendency in human beings. This research work has been
carried out to investigate the potential of natural material for acoustic applications. The most important factor for noise reduction is mainly based on
the type of raw material used and also the structure of the material. In this examination to determine the acoustic performance, jute fibre was
processed with STRUTO technology. The highloft structures produced by mixing jute fibre with polyester fibre and low melt bicomponent fibre has
been thoroughly studied. The results from various GSM levels also have been analyzed. The highloft materials, which is light weight showed high
efficient sound absorbing ability especially with increased GSM. Sound absorption properties of samples were analyzed and the findings were
tabulated. These results indicated that high loft textiles produced from jute fibre blends, can be used as a primary raw material for acoustic
applications, which is low in cost, light weight and also biodegradable.