Composite packaging material

Abstract

The invention relates to a composite packaging material which comprises outer cover paper, bottom cover paper, sandwich paper I, sandwich paper II, a corrugated paper element and a honeycomb paper element. The composite packaging material is also provided with a wood plastic foam material layer; the honeycomb paper element is arranged between the outer cover paper and the sandwich paper I; the corrugated paper element is arranged between the bottom cover paper and the sandwich paper II; the wood plastic foam material layer is arranged between the sandwich paper I and the sandwich paper II; and the heights of the wood plastic foam material layer, the corrugated paper element and the honeycomb paper element are same. The composite packaging material disclosed by the invention overcomes the defects of a corrugated paperboard, a honeycomb paperboard and the wood plastic foam material, combines the advantages of the corrugated paperboard, the honeycomb paperboard and the wood plastic foam material, has high strength, high compression resistance, high buffering performance, moisture prevention and heat preservation, can be used for the transportation packages of a shockproof lining of an industrial product, an electronic product and furniture and can be also used for the transportation packages of a moist environment product (such as an aquatic product) and the packages of high-class commodities.

Description

technical field [0001] The invention relates to a packaging material, in particular to a composite packaging material. technical background [0002] With the gradual weakening of tariff barriers, the export of domestic goods began to be troubled by "green trade barriers". Some media reported that China has become the country where the United States "green trade barriers" restrict imports the most. Among these "green trade barriers", those who are rejected from other countries due to unqualified packaging materials in our country account for a considerable proportion. [0003] Existing plastic foam packaging materials account for a large proportion of packaging materials, and the main varieties include EPS, EPE, EVA, EPP and other foam plastics and air cushion plastic films. These materials have good cushioning performance, moisture resistance and heat preservation, and are cheap, but they cannot be degraded and cause serious "white pollution" to the environment. [0004] ...

AI Technical Summary

Problems solved by technology

But there are also some disadvantages, such as hard surface, poor flexibility, poor resilience, difficult to form a three-dimensional curved surface, poor moisture resistance; poor overload recovery, poor compression resistance, and cannot directly contact the contents when packaging high-end products The surface, the content and the buffer cardboard are prone to relative movement, which will damage the surface of the content, etc.

[0005] Existing honeycomb paperboard as a packaging material not only has the advantages similar to corrugated paperboard, but also has the characteristics of good compression resistance, but also has similar disadvantages to existing corrugated paperboard

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