| 摘要 |
PROBLEM TO BE SOLVED: To obtain a film, in which a haze hardly develops and which is suitable to be used for covering the external surface of a metal vessel and can make the most of metal luster, by a method wherein the film is a multilayer polyester film consisting of a specified base layer and a bonding layer under the condition that the internal haze value of the whole film is specified. SOLUTION: This film is a multilayer polyester film consisting of a base layer, which simultaneously satisfies formulae I-III, and a bonding layer, which simultaneously satisfies that the internal haze value of the whole film is set to be 1.0% or less. Fine particles made of oxide metal or the like are added to the polyester film so as to form surface projections having the partice as a core in order to impart a lubricity. In this laminated film, the addition of various publicly known particles or inorganic compound such as silica, alumina, calcium carbonate or the like, or organic compound such as polystyrene-based crosslinked polymer particles or the like to respective layers is recommended. |
