MANUFACTURING METHOD OF FIBER MAT-LIKE SOUND ABSORBING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a fiber mat-like sound absorbing material of which a flow resistance of the air varies smoothly in a width direction.SOLUTION: In a manufacturing method of a fiber mat-like sound absorbing material of which a flow resistance of the air varies in a width direction, multiple fibrous material feeding devices 17 moving in a width direction of a belt-like conveyer device 18 are arranged on the belt-like conveyer device 18 so that areas where the moving ranges overlap each other are different. While the belt-like conveyer device 18 is rotation-driven, fibrous material layers are formed on the belt-like conveyer device 18 by feeding the fibrous material from each of the fibrous material feeding devices 17, and the fibrous material in the fibrous material layers are adhered to each other to form a mat-like body.