Method and apparatus for producing laminates
AssigneeFuji Photo Film Co., Ltd.
InventorsRyuichi Katsumoto, Yoshifumi Waki, Tadahiro Kegasawa
Life of this patent
Estimating the term…
Abstract
Rollers, substrates, products and the like are not smeared with a sticky volatile component when a gas is blown from a blower provided near an extruding die to produce laminates. The blower is heated by a heater at a temperature not below the volatilization temperature of the volatile component volatilized from a resin film of thermoplastic resin extruded in molten conditions from the extruding die, and therefore the volatile component cannot stick on the blower and is immediately volatilized on the blower.
Claims10
A method for producing a laminate, comprising the steps of:
- coating a surface of a running substrate with a film of thermoplastic resin extruded in a molten condition from an extruding die;
- and
- nipping the substrate and the film together between a nip roller and a cooling roller to produce a laminate while replacing, with a gas blown from a blower placed near the extruding die, air in an area where the nipping is conducted,
- wherein before the thermoplastic resin is extruded from the extruding die, a volatilization temperature of a volatile component of the thermoplastic resin is determined and the blower is heated at a temperature not below the determined volatilization temperature.
A laminate producing apparatus, comprising:
- an extruding die which extrudes a thermoplastic resin in a molten condition and coats a surface of a running substrate with a film of the thermoplastic resin;
- a nip roller and a cooling roller which nip the substrate and the film together;
- a blower which blows a gas around the extruding die;
- and
- a blower heater which heats the blower at a temperature not below a volatilization temperature of a volatile component of the thermoplastic resin.
A laminate producing apparatus, comprising:
- an extruding die which extrudes a thermoplastic resin in a molten condition and coats a surface of a running substrate with a film of the thermoplastic resin;
- a nip roller and a cooling roller which nip the substrate and the film together;
- a blower which blows a gas around the extruding die, wherein a nozzle provided in a blowing face of the blower is located at a distance of at least 15 mm from an edge of the blowing face.
Dependencies are inferred from the claim text.