A method for improving film surface aluminum plating fastness by surface coating method

Abstract

A surface coating method for improving film surface aluminizing fastness relates to the technical field of surface plating. A coating material is uniformly coated on the film surface by an anilox roller, to improve the surface tension of the film and enhance the fastness of the film after aluminizing. The method not only can be used in the preparation of a variety of film coatings with special mechanical properties (such as super hardness, high corrosion resistance, heat resistance and oxidation resistance), but also can be used in the preparation of various functional film materials and decorative coatings, etc.

Description

technical field [0001] The invention relates to the technical field of surface coating, in particular to a method for improving the fastness of aluminum plating on the surface of a film through a surface coating method, which can not only be used to prepare various special mechanical properties (such as superhardness, high corrosion resistance, heat resistance and anti-oxidation, etc.), but also can be used to prepare various functional film materials and decorative film coatings. Background technique [0002] The molecular structure of most plastic film packaging materials has basically no polar groups or only weak polar groups, the critical surface tension is small, and the inertia is strong. It is a typical non-polar polymer material, aluminum coating, ink The wettability and affinity to its surface are poor, and the intermolecular force between the two is very weak. [0003] The adhesion of the aluminized film is measured by peeling off the adhesive tape and a scratch t...

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Problems solved by technology

[0002] The molecular structure of most plastic film packaging materials has basically no polar groups or only weak polar groups, the critical surface tension is small, and the inertia is strong. It is a typical non-polar polymer material, aluminum coating, ink The wettability and affinity to its surface are poor, and the intermolecular force between the two is very weak

[0003] The adhesion of the aluminized film is measured by peeling off the adhesive tape and a scratch tester. At present, we usually use corona treatment on the surface of the film to increase its surface tension and reach the adhesion of the aluminized layer, but its The fastness of aluminum plating cannot be maintained for a long time, especially in today's fast-paced life, vacuum packaging has been greatly popularized, but vacuum packaging must be subjected to high-temperature sterilization and other post-treatments, which often easily cause damage to the aluminum plating layer. fall off

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