| abstract |
The release liner includes a release layernconstituted of at least one polyolefin resin, wherein thenrelease layer has surface irregularities. The surfacenirregularities of the release layer may be constituted ofnrecesses and protrusions which are irregularly different innshape and have been disposed in irregular arrangement. Thenrelease layer preferably has a surface roughness Ra of 1-3nµm. As the polyolefin resin constituting the release layerncan be used at least one polyolefin resin selected from thengroup consisting of polyethylenes, polypropylene,npolybutenes, poly(4-methyl-1-pentene), and copolymers ofnethylene with one or more α-olefins having 3-10 carbonnatoms. |