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SURFACE-TREATED ALUMINUM MATERIAL FOR TWO-PIECE CAN AND PRODUCTION OF SURFACE-TREATED ALUMINUM MATERIAL FOR TWO-PIECE CAN
SURFACE-TREATED ALUMINUM MATERIAL FOR TWO-PIECE CAN AND PRODUCTION OF SURFACE-TREATED ALUMINUM MATERIAL FOR TWO-PIECE CAN
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机译:两罐的表面处理铝材料和两罐的表面处理铝材料的生产
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摘要
PROBLEM TO BE SOLVED: To provide a surface-treated aluminum material for a two-piece can to hold beverage, etc., and its production method by which the feathering around the can tab is prevented, an org. resin film is not released even when worked for canning, any trouble is not caused in food sanitation, and the aluminum odor is not mixed in the beverage. ;SOLUTION: This surface-treated aluminum material for a two-piece can is obtained by forming a composite film consisting of a boehmite film and a nonporous anodice oxide film and contg. ≤15% water on the surface of aluminum or aluminum alloy material and further laminating an org. resin film on the surface of the nonporous anodic oxide film. The thickness of the boehmite film is controlled to 1,000 to 10,000 Å and that of the acidic oxide film to 50 to 1,500 Å.;COPYRIGHT: (C)1999,JPO
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