| 摘要 |
PROBLEM TO BE SOLVED: To prevent the clogging of a nozzle due to a degraded material (carbonized material) by obstructing the entering of oxygen to the inside of the main body tube to prevent the deterioration due to the oxidation and superheating of a hot melt adhesive transported in the tube. SOLUTION: In a heating hose, containing the main body tube 1, the network like blade, the electric heater and the heat insulating material layer, for supplying the hot melt adhesive in a melted state to the main body tube by heating the outer periphery of the main body tube, the air permeability of the main body tube is eliminated to obstruct the entering of air to the inside of the tube by using a Teflon(R) tube as the main body tube and covering the outer/inner peripheral surface of the Teflon tube with a metallic layer 2 or using a metal made main body tube.
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