A kind of recyclable reinforced foam sheet packaging material and preparation method thereof

Abstract

The invention relates to a recyclable reinforced foam sheet packaging material and a preparation method thereof, comprising the following steps: 1) preparing an upper foam board and a lower foam board through a foaming process; (2) placing the upper foam board on the upper Between the insulation roller and the high-voltage discharge rod, the lower foam board is placed between the lower insulation roller and the high-voltage discharge rod. The halo heating zone is pressed by composite rollers, so that a heat permeable layer is formed between the lower surface of the upper foam board and the upper surface of the lower foam board, and the heat permeable layer connects the upper foam board and the lower foam board, making it a composite whole (3) The BOPP / PE / PET plastic film layer is pasted on the upper surface of the upper foam board and / or the lower surface of the lower foam board by UV curing technology with PUR glue. After corona treatment combined with composite roller pressing, the lower surface of the upper foam board and the upper surface of the corresponding lower foam board penetrate each other to form a heat permeable layer, which can improve the overall strength, the strength can be increased by about 50%, and the toughness can also be improved.

Description

technical field [0001] The invention belongs to packaging materials, in particular to a recyclable reinforced foam sheet packaging material and a preparation method thereof. Background technique [0002] At present, the packaging materials used to make packing boxes or other containers generally use corrugated cardboard. Corrugated cardboard is easy to age, break, not moisture-proof, not waterproof, and corrugated cardboard needs to use a large amount of wood as raw materials, which often leads to excessive felling of trees. Destroying the environment is not conducive to environmental protection. [0003] Therefore, the industry has been trying to find some packaging materials that can replace corrugated cardboard. If injection-molded plastic panels are used entirely, the cost will be too high. Moreover, due to the high density of injection-molded plastic panels, the produced packaging boxes are heavy and not suitable for handling. In addition, thicker injection-molded plas...

AI Technical Summary

Problems solved by technology

[0002] At present, the packaging materials used to make packing boxes or other containers generally use corrugated cardboard. Corrugated cardboard is easy to age, break, not moisture-proof, not waterproof, and corrugated cardboard needs to use a large amount of wood as raw materials for production, which often leads to excessive felling of trees. Destroy the environment, not conducive to environmental protection

[0003] Therefore, the industry has been trying to find some packaging materials that can replace corrugated cardboard. If injection-molded plastic panels are used entirely, the cost will be too high. Moreover, due to the high density of injection-molded plastic panels, the produced packaging boxes are heavy and not suitable for handling. In addition, thicker injection-molded plastic sheets are difficult to fold and pack, and thinner injection-molded plastic sheets are hard to meet the packaging requirements. Therefore, it is difficult for injection-molded plastic sheets to replace corrugated cardboard as packaging materials. Injection-molded plastic sheets are only used in some special applications. Packaging, cannot be widely promoted and applied

The foamed board has the advantages of light weight, waterproof and good heat insulation performance, but the single-layer foamed board has low impact strength, poor toughness, and is easy to break down, so it has defects as a packing box.

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