| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose having proper flexibility and strength as a cleaner hose and gas permeability for recirculating a part of heated air to the nozzle. SOLUTION: This cleaner hose constituted by integrally winding a soft resin tape 1 and a gas permeable tape 5 in a spiral shape by interposing the latter 5 between edge parts of the former 1, is used as the outer tube when the whole hose is formed as a double tube structure. A two-layer structure composed of nonwoven fabric 16 and woven fabric 17 is used as the gas permeable tape 5.
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