FILM HUMIDIFICATION DEVICE, FILM HUMIDIFICATION SYSTEM, AND PRODUCTION METHOD FOR HUMIDIFIED FILM

摘要

Provided are a film humidification device, a film humidification system including same, and a method whereby longitudinal film is guided into the humidification device and humidified film is produced. The film humidification device is for humidifying a longitudinal film and includes: a chamber for which the internal relative humidity can be adjusted; a guiding port for guiding the film to inside the chamber; a discharge port for discharging the humidified film from the chamber; and a plurality of guide rolls arranged inside the chamber and prescribing a conveyance path for the film. At least one of the plurality of guide rolls is a movable guide roll capable of moving position. The water content of the film is adjusted by adjusting the position of the movable guide roll. The humidified film production method includes a step in which the water content of the humidified film is adjusted by changing the length of the conveyance path for the film inside the humidification device.