SOUND ABSORBING AND INSULATING MATERIAL WITH SUPERIOR MOLDABILITY AND APPEARANCE AND METHOD FOR MANUFACTURING THE SAME

摘要

The present invention relates to a sound absorbing and insulating material with superior moldability and appearance and a method for manufacturing the same, more particularly to a sound absorbing and insulating material consisting of an inner layer 1 formed of a first nonwoven fabric mainly formed of a heat-resistant fiber and a binder uniformly distributed inside the first nonwoven fabric and maintaining the three-dimensional structure inside the first nonwoven fabric and an outer layer 2′, 2″ formed of a second nonwoven fabric mainly formed of a heat-resistant fiber, wherein the outer layer is stacked on one or both sides of the inner layer, and a method for manufacturing the same. The sound absorbing and insulating material of the present invention has superior sound-absorbing property, flame retardancy, heat resistance, heat-insulating property and high-temperature moldability. In addition, there is no concern of deterioration of surface appearance caused by leakage of the binder due to the presence of the outer layer.

主权项

1. A sound absorbing and insulating material comprising:
an inner layer comprising a first nonwoven fabric comprising an amount of about 30 to 100 wt % of a heat-resistant fiber based on the total weight of the first nonwoven fabric and a binder present in the same layer as the first nonwoven fabric and maintaining a three-dimensional structure in the inner layer; and an outer layer comprising a second nonwoven fabric comprising an amount of about 30 to 100 wt % of a heat-resistant fiber based on the total weight of the second nonwoven fabric, wherein the outer layer is stacked on one or both sides of the inner layer.