Anti-ultraviolet anti-yellowing cigarette film

Abstract

The invention belongs to the technical field of cigarette films and provides an anti-ultraviolet anti-yellowing cigarette film which is prepared by extruding a functional layer, a core layer and a secondary functional layer, and the core layer is located between the functional layer and the secondary functional layer; wherein the mass ratio of the functional layer to the core layer to the secondary functional layer is 3-4:15:3-4, the functional layer is prepared from the following raw materials in percentage by mass: 97-98.3 percent of copolymerized ternary polypropylene, 1-2 percent of antioxidant and 0.5-1 percent of graphene; the core layer is prepared from the following raw materials in percentage by mass: 87-92% of homo-polypropylene, 5-10% of petroleum resin, 1-2% of an internal lubricant, 0.5-1% of an antioxidant, 0.5-2% of an anti-ultraviolet agent and 1-3% of a migration slipping agent; and the secondary functional layer is prepared from the following raw materials in percentage by mass: 0.5-3% of graphene, 0.5-2% of an antioxidant, 95-98% of homo-polypropylene, 0.2-0.5% of benzophenone and 0.2-0.5% of diphenylamine. The cigarette film has the characteristics of strong ultraviolet resistance and yellowing resistance.

Description

technical field [0001] The invention belongs to the technical field of cigarette films, in particular to an anti-ultraviolet and anti-yellowing cigarette film, which is a film used for packaging cigarettes. Background technique [0002] Cigarette packs currently on the market are affected by external or environmental factors such as sunlight, oxygen, ozone, heat, water, mechanical stress, high-energy radiation, electricity, industrial gases, sea water, salt spray, mold, bacteria, etc., resulting in macromolecular chains. These free radicals further cause the cracking of the entire macromolecular chain, and even pulverization. At the same time, the ink on the box skin will also fade and turn yellow, while the main colors of the box skin are yellow, magenta, and green. Fading faster , thus losing luster and affecting the visual effect. Contents of the invention [0003] The object of the present invention is to provide an anti-ultraviolet and anti-yellowing cigarette film, ...

AI Technical Summary

Problems solved by technology

[0002] Cigarette packs currently on the market are affected by external or environmental factors such as sunlight, oxygen, ozone, heat, water, mechanical stress, high-energy radiation, electricity, industrial gases, sea water, salt spray, mold, bacteria, etc., resulting in macromolecular chains. These free radicals further cause the cracking of the entire macromolecular chain, and even pulverization. At the same time, the ink on the box skin will also fade and turn yellow, while the main colors of the box skin are yellow, magenta, and green. Fading faster , thus losing luster and affecting the visual effect

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