Method and apparatus for manufacturing film or laminated product
According to the present invention, in a method and an apparatus for manufacturing a laminated product, the product is manufactured while a molten thermoplastic resin is extruded from an extrusion die and thermally unstable ozone gas is blown from a gas blower disposed near the extrusion die, the gas blower is forcibly cooled while the gas blower is covered with a cover and only the cover is heated to the volatilization temperature or higher of a volatile component volatilized from the extruded thermoplastic resin.
1 . A method for manufacturing a film or a laminated product, in which when a film made of a resin or the laminated product having a resin film laminated on a support is manufactured, a molten thermoplastic resin is extruded into a film from an extrusion die and thermally unstable gas is blown from a gas blower disposed near the extrusion die,
wherein the gas blower is forcibly cooled while the gas blower is covered with a cover and only the cover is heated to a volatilization temperature or higher of a volatile component volatilized from the extruded thermoplastic resin.
2 . The method for manufacturing the film or the laminated product according to claim 1 , wherein the thermally unstable gas is ozone gas.
3 . An apparatus for manufacturing a film or a laminated product, in which when a film made of a resin or the laminated product having a resin film laminated on a support is manufactured, a molten thermoplastic resin is extruded into a film from an extrusion die and gas is blown from a gas blower disposed near the extrusion die, the apparatus comprising:
a cover for covering the gas blower via a space;
a heating device which heats the cover; and
a cooling device which cools the gas blower.
4 . The apparatus for manufacturing the film or the laminated product according to claim 3 , wherein the space between the gas blower and the cover is filled with a heat insulator.