| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester film for a metal-sheet laminate, excellent in taste quality and adhesion in a metal sheet and thermal laminate, non- generating of a pinhole, a crack, etc., in drum making, and good in winding property. SOLUTION: This film is composed of polyethyleneterephthalate or a polyester having mainly the same (A) of 10-60 mass%, and polybutyleneterephthalate or the polyester having mainly the same (B) of 40-90 mass%, wherein a ternary surface roughness (SRa) is 0.02-0.06μm, a number of peaking of 0.2μm or above in height is 50-150 pieces/mm2, and the number of peaking of 0.5μm or above in height is 100 pieces/mm2 or below. |
