Composite buffer material

Abstract

The invention discloses a composite buffer material which comprises a core material and a face material, wherein the core material is a bidirectional superimposed corrugate core material; a corrugateangle between two directions of the bidirectional superimposed corrugate core material is 1-90 degrees; and a corrugate cross-sectional shape in the two directions is a combination of function curvesor partial function curves. According to the invention, polymer materials are molded into a bidirectional corrugate structure through a mold, and then are used as the core material for directly replacing a corrugated board core paper material and then being combined with the face material to form the composite buffer material with the corrugated structure, thereby not only reducing dosage of paperpulp, but also reducing manufacturing process steps, also improving recovery utilization rate and reducing the problem of performance degradation of the corrugated board due to recycling.

Description

technical field [0001] The invention relates to the technical field of packaging materials, and more specifically relates to a composite cushioning material. Background technique [0002] With the rapid development of electronic commerce and the express delivery industry, packaging waste cartons have become an important part of domestic waste, and most of the transport packaging cartons are made of corrugated cardboard with light weight, low price and high bending strength. The most widely used corrugated cardboard is composed of surface paper, corrugated core and inner paper. The side of the corrugated core is V-shaped, U-shaped or UV-shaped corrugated. Although with the deepening awareness of environmental protection and resource utilization, and the penetration of green packaging concepts, waste paper has become one of the main raw materials for the production of corrugated paper, making the proportion of recycled fibers in corrugated medium paper generally higher than 30...

AI Technical Summary

Problems solved by technology

Although with the deepening awareness of environmental protection and resource utilization, and the penetration of green packaging concepts, waste paper has become one of the main raw materials for the production of corrugated paper, making the proportion of recycled fibers in corrugated medium paper generally higher than 30%, but most core paper Pulp is still log pulp, which increases the demand for wood, and most of the corrugated boxes are disposable, resulting in substantial consumption of natural resources and energy. From the perspective of packaging life cycle assessment, Corrugated cardboard is not a green packaging material

[0003] To solve the problem of environmental protection, it is necessary to improve the defects of corrugated cardboard materials. It has been reported that a kind of composite of textile materials and natural polymer materials is used to prepare corrugated medium paper: the straw is crushed and pulped and sprayed on the surface of the textile to form a straw layer. Finally, the straw layer is pressed with a grooved roller to make it have a rack-like structure to form a core paper, which is then combined with the face paper to form a corrugated cardboard, but the process is more complicated and the manufacturing cost is higher

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