Functional film and method for manufacturing the functional film

A method for manufacturing a functional film, comprising steps of:

• feeding a support continuously from a first film roll, forming a coating film on the support, providing a laminate film on a surface of the coating film under atmospheric pressure, and taking up the support to a second film roll;
• and
• loading the second film roll made by the aforementioned step in a vacuum film-forming apparatus, feeding the support provided with the laminate film continuously from the second film roll, peeling off the laminate film, forming an inorganic film on the coating film on the support, and taking up the support to a third film roll, wherein
• an adhesive material having a peel force of 1 N/m or more and 5 N/m or less against the coating film is applied on the laminate film, wherein
• the laminate film has a porous structure, and
• the laminate film is provided after curing of the coating film and before a pass roller coming in contact with the coating film side of the support, and the laminate film is peeled off before formation of the inorganic film and after passing through all pass rollers coming in contact with the coating film side of the support.