It is intended to provide a metal can from which the contents packed therein are easy to take out and which has been coated with a polyester resin film for food or with a film for food which is made of a resin consisting mainly of a polyester resin; a metal sheet which has been coated with a surface-roughened resin film and is for use in the metal can; a surface-roughened resin film for use in the metal sheet; and processes for producing these. The surface-roughened resin film is one which comprises a polyester resin and, incorporated therein, either inorganic particles or a resin incompatible with the polyester resin, e.g., a polyolefin resin, to thereby have a roughened surface. Alternatively, the surface-roughened resin film is one obtained by embossing a surface of a resin film. The surface-roughened resin film is laminated to a metal sheet. Alternatively, a resin film which has not undergone surface roughening is laminated to a metal sheet and this resin film-coated metal sheet is embossed. The resultant resin film-coated metal sheet is formed into a can by drawing or by drawing with ironing. The surface roughness is thus enhanced.

 
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