Importance

Loading Importance Indicators...

Abstract

Provided is a film production apparatus and a method for producing film capable of exerting a good effect of preventing necking-in by minimizing the length of molten resin after extrusion through a die exit and before a contact with the surface of a chill roll. A film production apparatus configured to take up molten resin extruded downward from an exit bored in a die by a rotating chill roll located below the exit and to cool the molten resin for solidification by the chill roll to produce a film further includes a fluid providing unit that provides fluid to a space between the exit and the chill roll located below. The film production apparatus is configured to apply fluid pressure in a direction pushing back the molten resin existing in the space against displacement of the molten rein taken up in a rotational direction of the chill roll.

Loading the Abstract Image...

First Claim