| 摘要 |
PROBLEM TO BE SOLVED: To provide a release film excellent in antistatic properties, showing excellent dimensional stability at heating and hard to cause the transfer of resin sheetlike printed matter at taking-up. SOLUTION: The release film is constituted by providing a release layer on one surface of a polyester film having an antistatic layer with a surface resistance value of 10<SP>5</SP>-10<SP>11</SP>Ωformed thereon while providing a repellent layer on the other surface thereof. The heat shrinkage factor of the release film when performing heat treatment at 150°C for 30 min is 0 to 0.30% in the longitudinal direction of the release film and -0.05 to 0.05% in the lateral direction thereof. COPYRIGHT: (C)2004,JPO&NCIPI |
