| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet-shaped object that can be manufactured at relatively low cost, prevents a film-forming solution from leaking from its back when it is used as a separating film support, is excellent in adhesiveness to a separating film, and can provide an inexpensive separating film of stable quality, and to provide a sheet-shaped object having a separating film. SOLUTION: The sheet-shaped object has a multilayered structure comprising an upper layer and a lower layer. The upper layer is a nonwoven fabric containing principal fibers made from synthetic fibers and has a basis weight of 20 to 100 g/m<SP>2</SP>, a thickness of 20 to 200μm, and air permeability resistance of 0.1 to 5 seconds. The lower layer is a pulp sheet containing paper-forming pulp and has a basis weight of 20 to 100 g/m<SP>2</SP>, a thickness of 20 to 200μm, and air permeability resistance of 0.1 to 8 seconds. The sheet-shaped object has a basis weight of 60 to 140 g/m<SP>2</SP>, a thickness of 50 to 150μm, and air permeability resistance of 0.1 to 10 seconds. COPYRIGHT: (C)2009,JPO&INPIT
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