FILTER MEDIUM FOR FUEL AND FILTER FOR FUEL

摘要

PROBLEM TO BE SOLVED: To provide a filter medium for fuel, which exhibits excellent capturing performance of minute particles, keeps the sufficient service life of a filter for fuel without increasing the volume of the filter for fuel, has excellent durability and gives uniform performance to the filter for fuel, and to provide the filter for fuel. SOLUTION: This filter medium for fuel is obtained by integrally bonding a reinforcing material constituted of a synthetic resin, a nonwoven fabric layer comprising at least one layer of a spunlace nonwoven fabric and the nonwoven fabric of a thermoplastic synthetic filament. The spunlace nonwoven fabric is constituted of a thermoplastic synthetic fiber having 3-8μm average fiber diameter and has 100-300 g/m2basis weight (1). This filter medium for fuel is constituted so that the above-mentioned nonwoven fabrics of the thermoplastic synthetic filament are laminated above and below the above-mentioned nonwoven fabric layer comprising the spunlace nonwoven fabric (2). This filter medium for fuel is constituted so that the above-mentioned nonwoven fabric layer comprising the spunlace nonwoven fabric is constituted of the spunlace nonwoven fabric and a melt blown nonwoven fabric (3). This filter for fuel is obtained by superimposing the filter media for fuel on one another so that the above-mentioned nonwoven fabrics of the thermoplastic synthetic filament comes inward and heat-sealing the peripheral edge parts of the superimposed filter media to form it into a pouched shape (4). COPYRIGHT: (C)2006,JPO&NCIPI