| 摘要 |
PROBLEM TO BE SOLVED: To render ink adhesion and an oligomer deposition restraining property after an elapse of time excellent by providing a laminated film having as a constitutional component polyester resin of a specific glass transition temperature on at least one surface of a polyester film containing lithium dodecylbenzenesulfonate by a specific rate. SOLUTION: A lamination film having as a constitutional component polyester resin of a glass transition temperature of -120 deg.C or higher or 60 deg.C or lower is provided on at least one surface of a polyester film containing lithium dedecylbenzenesulfonate by 0.02-2 wt.%. Such polyester is preferable to be one having ethyleneterephthalate as a principal component in particular, and further preferable to be polyethylene-2,6-naphthalate having superior heat resistance or rigidity in use where heat is affected to the base material or in use where resin is shrunk during curing period such as UV ray curable resin. A thickness of the polyester film is suitable to be 1-500μm in terms of mechanical strength, a handling property, etc.
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