| abstract |
A production method of a laminate in which creasing is suppressed. The production method of a laminate comprises a step for coating a porous film (1) with a coating liquid, and a step for moving the porous film (1) coated with the coating liquid along the circumferential surface of a feed roller (14), and then moving the porous film (1) along the circumferential surface of a lamination roller (30) together with a supporting substrate (2) for laminating the porous film (1) and the supporting substrate (2), thereby producing a laminate (3a). Assuming the radius of the feed roller (14) is R1 (cm), the radius of the lamination roller (30) is R2 (cm), the distance between the central axes of the feed roller (14) and the lamination roller (30) is L (cm), the thickness of the porous film (1) is T1 (cm), and the thickness of the supporting substrate (2) is T2 (cm), a condition represented by following expression (1) is satisfied. R1+R2+T1+T2≤L≤R1+R2+100 (1) |