The nonwoven fabric for electromagnetic shielding materials， and an electromagnetic shielding material

The subject of this invention is providing the nonwoven fabric base material for electromagnetic shielding materials and electromagnetic shielding material which can express outstanding electromagnetic shielding. Two or more types of extending|stretching polyester-type short fibers which are selected from 3 micrometers or more of fiber diameters， and the extending|stretching polyester-type short fiber below 12 micrometers and which differ in a fiber diameter， The nonwoven fabric for electromagnetic shielding materials， the extending|stretching polyester-type short fiber of less than 3 micrometers of fiber diameters， and the non-expanded polyester-type short fiber of 3 micrometers - 5 micrometers of fiber diameters which are the wet-laid nonwoven fabrics containing the non-expanded polyester-type short fiber of 3 micrometers - 5 micrometers of fiber diameters are contained， A fabric weight is 7 g/m 2 or less， The nonwoven fabric for electromagnetic shielding materials and extending|stretching polyester-type short fiber which are the wet-laid nonwoven fabrics， and the non-expanded polyester-type short fiber of 220 degreeC to 250 degreeC of melting|fusing point which are the densities of 0.5-0.8 g/cm 3 are contained， The nonwoven fabric for electromagnetic shielding materials whose peeling strength (vertical direction) of this nonwoven fabric is 2.0 N/m or more. [FIG. 1] [MAT_IMAGE 000005]