Aluminum plastic film production process

Abstract

The invention discloses an aluminum-plastic film production process which comprises the following steps: S1, unwinding an aluminum foil through an unwinding device so as to enable the aluminum foil to be conveyed under the driving of a driving roller; S2, preheating the conveyed aluminum foil through a preheating device, so that the temperature of the surface of the aluminum foil is increased to 100-120 DEG C; S3, extruding a composite film in a molten state to the surface of the conveyed aluminum foil through an extruder, wherein the composite film in the molten state forms a solid composite film on the surface of the aluminum foil, and the solid composite film is evenly attached to the surface of the aluminum foil through a composite mechanism; S4, heating a hot melting layer of the solid composite film on the surface of the aluminum foil to be melted through a heating assembly, so that the composite film is bonded to the surface of the aluminum foil; S5, cooling the aluminum foil through a cooling assembly, so that the composite film is solidified on the surface of the aluminum foil again to form an aluminum-plastic film; and S6, winding the aluminum plastic film through a winding device. According to the technical scheme, the adhesiveness of the aluminum-plastic film is improved, and the product quality of the aluminum-plastic film is improved.

Description

technical field [0001] The invention relates to the technical field of film coating processing equipment, in particular to an aluminum-plastic film production process. Background technique [0002] Aluminum-plastic composite film is the packaging film for pouch batteries, power batteries, etc. While the demand for batteries is increasing, the demand and performance requirements for aluminum-plastic films used for battery packaging are also getting higher and higher. During the production process of aluminum-plastic film, the film in molten state is extruded through an extruder and then attached to the surface of the aluminum foil to protect the aluminum foil. In related technologies, when the composite film is attached to the surface of the aluminum foil, the finished product of the aluminum-plastic film is formed, and the aluminum-plastic film is rolled and packaged. However, the viscosity of the aluminum-plastic composite film product produced in this way is not high, wh...

AI Technical Summary

Problems solved by technology

However, the viscosity of the aluminum-plastic composite film produced in this way is not high, which will easily cause the separation of the film and the aluminum foil, which will affect the quality of the aluminum-plastic composite film and the application of the aluminum-plastic composite film battery.

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