FIBER COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME

摘要

A fiber composite material which can be regulated so as to have an air permeability in a wide range of from a low to a high air permeability while using a small resin deposition amount. A film material (2) of a thermoplastic resin having a melt flow rate of 100-500 (g/10 min) is extruded on and fusion-bonded to a surface of a nonwoven fabric (1). This film material (2) is partially infiltrated into the nonwoven fabric (1) at many fine parts where fibers (1a) constituting the nonwoven fabric (1) are in contact with the film material (2). Thus, crosslinking parts (3) connecting the nonwoven fabric (1) to the film material (2) are formed. In addition, the infiltration of the film material (2) results in the formation of fine through-holes (4) for air permeation around the bases of the crosslinking parts (3) in the film material.