| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer mounting mat for an exhaust gas treatment device.SOLUTION: A mat is formed from multiple plies of wet laid fibrous sheets, and the majority of fibers in each of the multiple plies of multiple wet laid fibrous sheets are oriented within the x-y plane of each fibrous sheet. Further, a minor portion of the fibers is physically entangled within the multilayer mounting mat by at least one of wet-needling, dry-needling, hydro-entanglement, or pressing.SELECTED DRAWING: Figure 1 |
