Patent ID: 9266273
Filing Date: 2016-02-23
CPC Classification: B29C,B29L

Claim Text:
1. An apparatus for producing a thermoplastic resin film, in which when a molten thermoplastic resin is cast from an extrusion die onto a cooling drum, to be cooled and solidified on the cooling drum, for producing a thermoplastic resin film, air is sprayed by spray nozzles toward the film on a side of a film surface not in contact with the cooling drum (hereinafter referred to as the anti-cooling drum-side surface), while the air near the film is sucked by an inter-nozzle exhaust mechanism simultaneously on the side of the anti-cooling drum-side surface, wherein suction faces of the inter-nozzle exhaust mechanism are installed at positions recessed from tip faces of the spray nozzles in a direction farther away from the film, wherein the inter-nozzle exhaust mechanism is perfectly separated from the spray nozzles and installed behind rear faces of the spray nozzles, and through openings are formed between the respective spray nozzles, and wherein the distance between the tip faces of the spray nozzles and the surface of the thermoplastic resin film is 5 to 30 mm.