| abstract |
(57) [Summary] (with correction) [PROBLEMS] Manufacture of a large-size TFT type or STN type polarizing plate, a retardation polarizing plate, or a release film for facilitating the detection of foreign matter and defects by visual inspection of the retardation plate. Provide a way. SOLUTION: After applying a coating liquid containing a polydimethylsiloxane having a vinyl group and a hydrogensilane-based compound at a specific ratio to one surface of a polyester film, A method for producing a release film in which a release layer mainly composed of a silicone resin is provided by heat curing, wherein the polyester film has a retardation value (R) of 1200 (n). m) The MO measured with a microwave transmission type molecular orientation meter R value in the range of 1.3 to 1.8, difference between the minimum value and the maximum value of the MOR value of 0.2 or less, 25 μm per 310.8 cm 2 area 0 of the above foreign substances and 1 of foreign substances of 5 μm or more and less than 25 μm 0 or less. |