Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

The present invention addresses the problem of providing a polyester film for release film production, that exhibits excellent transportability and excellent release layer coatability and that can suppress the formation of transfer marks in the release layer surface. The present invention also addresses the problem of providing a release film and a method for producing a polyester film. A polyester film according to the present invention is a polyester film for release film production that is provided with a substantially particle-free polyester base material and a particle-containing coating layer disposed on one surface of the polyester base material, that has a first main surface and a second main surface, and that is used to produce a release film by forming a release layer on the first main surface. The second main surface is the surface on the opposite side from the coating layer side of the polyester base material. The maximum projection height Sp of the second main surface is greater than or equal to 1 nm and less than 60 nm, and the surface free energy of the second main surface is 25-60 mJ/m2.

» Number: WO2022019113A1 (A1)

» Publication Date: 27/01/2022

» Applicant: FUJIFILM CORP?[JP]

» Inventor: MIYAKE KAZUHITO?[JP]; TESHIMA YUKI?[JP] (2)

» More Information

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