To provide a wrapping material for an electronic component case showing a superior rigidity and capable of attaining a superior outer appearance with hardly allowing visual recognition of roll traces, scratches or the like on an aluminum foil even if a rolled trace or a scratch or the like is left at an aluminum foil.
This wrapping material for electronic component cases comprises a heat-resistant resin oriented film layer 2 acting as an outer layer, a thermoplastic resin non-oriented film layer 3 acting as an inner layer, and an aluminum foil layer 4 arranged between these film layers. The aluminum foil layer 4 is made by laminating a hard aluminum foil 5 arranged at the inner layer 3 and an aluminum foil 6 on the outer layer 2 in which at least the outer layer is formed as a mat surface.
COPYRIGHT: (C)2007,JPO&INPIT
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Ken Takada
Yoshihito Shimizu