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|1. (WO2018056323) METHOD FOR PRODUCING FILM FOR TIRE|
|Applicants:||THE YOKOHAMA RUBBER CO., LTD.
|Title:||METHOD FOR PRODUCING FILM FOR TIRE|
Provided is a method for producing a film for a tire, said method making it possible to suppress thermal shrinkage of the film after molding. A method for producing a film 3 for a tire, said film being used in an air-permeation-preventing layer of a pneumatic tire and comprising a thermoplastic elastomer composition in which an elastomer component is dispersed in a thermoplastic resin, wherein the film 3 for a tire, which is molded by inflation molding or cast molding, is heat-treated at a heat treatment temperature that is equal to or greater than the glass transition temperature of the resin having the highest glass transition temperature of the thermoplastic resins included in the film for a tire 3, the film 3 for a tire being heat-treated while in a state wound in a roll together with a liner material 4 that regulates deformation of the film 3 for a tire.