Honeycomb filter and method of manufacturing the same

摘要

A honeycomb filter 1 includes a cylindrical honeycomb structure 2 having a plurality of cells 4 , and plugging members 7 disposed to alternately plug openings 5 of predetermined cells 4 a on the side of one end face 6 a and the openings 5 of the remaining cells 4 b on the side of the other end face 6 b of the structure 2 in checkered flag form, and further having second plugging members 8 disposed to plug openings 5 of cells 4 which are not plugged by the first plugging member 7 on either side of two end faces 6 a and 6 b of the structure 2 corresponding to 0.2 to 2.5% of the area of the cross section perpendicular to the center axis of the structure 2 in a center section occupying at least 2/3 of the area from the center axis of the structure 2 to an outer circumferential surface 11.