METHOD FOR PRODUCING COATED METAL STRIP
A coating that contains acid-modified polypropylene and that contains 5 mass% or more of nonvolatile matter is applied to a traveling metal strip in a state in which the surface temperature of the metal strip is 60°C or lower. Next, the coating applied to the metal strip is baked at 80-250°C, and a...
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Zusammenfassung: | A coating that contains acid-modified polypropylene and that contains 5 mass% or more of nonvolatile matter is applied to a traveling metal strip in a state in which the surface temperature of the metal strip is 60°C or lower. Next, the coating applied to the metal strip is baked at 80-250°C, and a coating film having a film thickness of 0.3 µm or greater is formed on the traveling metal strip. The proportion of acid-modified polypropylene to resin total mass in the coating film is 40 mass% or higher. The traveling metal strip is then wound after being cooled to a surface temperature of 80°C or lower. |
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