DUCT WITH DEODORIZATION FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a duct having sufficient heat insulation characteristics and sound absorbency characteristics as well as superior deodorization characteristics.SOLUTION: This invention comprises an inner tubular part 2 including span bond non-woven cloth with a thickness of 0.1 mm to 0.8 mm and basis weight of 30 g/mto 120 g/m, an intermediate tubular part 3 covering the inner tubular part 2 and an outer tubular part 4 covering the intermediate tubular part. The intermediate tubular part 3 includes glass wool with a thickness of 20 mm to 60 mm and a bulk density of 12 kg/mto 30 kg/m, deodorant fastening parts 5 having deodorant adhered through gravure printing are formed at a part of the inner circumferential surface of the inner tubular part 2 and a rate of area of a printed area 21 having deodorant printed in respect to an entire inner circumferential surface of the inner tubular part is in a range of 50% to 90%.