| 摘要 |
PROBLEM TO BE SOLVED: To provide a tasteless and odorless hose for food superior in food sanitation, free from contamination and capable of preventing the deterioration caused by hydrolysis or the like of an outer layer, while sufficiently ensuring the adhesion strength of an inner layer and the outer layer. SOLUTION: As the inner layer 1 is made of polyvinylidene fluoride, the inner layer is prevented from reacting with chlorine included in the city water by its characteristic, an inner face of the inner 1 is prevented from being contaminated, the gas barrier property can be provided, and a material is hardly dissolved into the food. The adhesiveness with polyvinylidene fluoride of the inner layer 2 is improved by an acryl elastomer included in an intermediate layer 2, and the adhesiveness with an olefin resin of the outer layer 3 is improved by a styrene elastomer included in the intermediate layer 3. By making the outer layer 3 out of the olefin resin material, the hydrolysis can be prevented by a characteristic of the olefin resin material.
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