Process for producing a filter for adsorbing volatile hydrocarbons

Process for producing a filter (10) for the adsorption of volatile hydrocarbons from a nonwoven material (20), the material comprising nonwoven (20) fibers are thermally fused, joining activated carbon particles to the fiber surface by a binder, comprising the fibers of at least one thermoplastic having a melting point or melting range above 200 ° C, giving a desired shape to the nonwoven (20) using an array (14) by applying pressure and a maximum temperature of 190 ° C, joining together a plurality of layers of nonwoven material (20) by applying pressure and temperature, compacted both the nonwoven material (20) to give way to least one first area (22) held thereby form compacted and less in at least a second area (24) to allow thereby a better adsorption in the second area (24).