SOUNDPROOF COVER FOR AUTOMOBILE AND METHOD FOR MANUFACTURING SOUNDPROOF COVER FOR AUTOMOBILE

An automotive soundproof cover includes a fibrous formed article that exhibits the desired sound insulating properties and high flame retardancy. The automotive soundproof cover includes a fibrous formed article that includes two or more types of fibers, the fibrous formed article including 50 to 80 mass% of organic fibers, 10 to 40 mass% of flame retardant-containing fibers, and 5 to 20 mass% of an organic binder, the ratio of the total mass of the flame retardant included in the flame retardant-containing fibers to the total mass of the fibrous formed article being 0.01 to 1.8 mass%, and the flame retardant being a melt drip regulator.