Holding sealing material, method for manufacturing holding sealing material, exhaust gas purifying apparatus, and method for manufacturing exhaust gas purifying apparatus

摘要

The object is to provide a holding sealing material which, when wound around an exhaust gas treating body, is hardly dislocated relative to the exhaust gas treating body and hardly protrudes from the end of a metal casing upon press-fitting of the exhaust gas treating body into the metal casing, and can reduce scattering of inorganic fibers The present invention provides a holding sealing material including a laminate of a plurality of mats each including inorganic fibers and having a rectangle shape in a plan view, the mats arranged in the order of longitudinal length from the shortest to the longest; and a film adhered to a first main surface and longitudinal side surfaces of the mat with the longest longitudinal length among the mats of the laminate, the first main surface being on the side opposite to a second main surface which is in contact with the next longest mat, the film adhered to the second main surface to allow the second main surface to be partly exposed.