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.
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/m2, a thickness of 20 to 200 m, 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/m2, a thickness of 20 to 200 m, and air permeability resistance of 0.1 to 8 seconds. The sheet-shaped object has a basis weight of 60 to 140 g/m2, a thickness of 50 to 150 m, and air permeability resistance of 0.1 to 10 seconds.
HATTORI AKIRA
MASUDA NORIYUKI
HASEGAWA DAISUKE
| JPH0679832A | 1994-03-22 | |||
| JP2002095937A | 2002-04-02 | |||
| JPH10225630A | 1998-08-25 | |||
| JPH09141071A | 1997-06-03 | |||
| JP2001300225A | 2001-10-30 |