High-strength corrugated paperboard used as package material

Abstract

The invention discloses a high-strength corrugated cardboard for packaging materials, which includes face paper, core paper and inner paper. The core paper is arranged between the face paper and the inner paper, and also includes a grid fiber layer and reinforcing ribs. The mesh fiber layers are respectively arranged on the inner side of the surface paper and the inner paper on both sides of the core paper, the cross section of the core paper is in a wave structure, and the reinforcing ribs are respectively vertically arranged on the flute of the core paper. Shaped protruding part and is connected with described face paper or inner paper. Through the above method, the high-strength corrugated cardboard used for packaging materials of the present invention improves the toughness of the corrugated cardboard, has the characteristics of strong tear resistance and good puncture resistance, strengthens the overall strength of the corrugated cardboard, and makes it difficult to deform. It is conducive to the handling of goods, and at the same time has the characteristics of waterproof and is not easy to be scrapped.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a high-strength corrugated cardboard for packaging materials. Background technique [0002] At present, most of the packaging boxes and gift boxes that people use to package food, wine, photo albums, etc. use "high grammage powder gray cardboard, MDF, 3-5mm thick wooden plywood" for mounting printing, block or die-cutting After molding, into boxes. Due to the lack of strength, the packaging boxes made of high-grade powder gray cardboard and MDF often appear deformed or torn during transportation and movement, and the protection of the items contained in them is not enough, and the appearance after molding and boxing is not good. Adopt wooden plywood except that cost is high, waste is big, be difficult for recycling and destroy the disadvantages such as forest resources, also there are defects such as poor shock resistance, heavy weight, and difficult processing. [...

AI Technical Summary

Problems solved by technology

However, most of the corrugated boards used in the prior art are made of kraft cardboard. The use of kraft cardboard has high cost and insufficient strength. In order to increase the strength, two methods are mainly used: the first is to increase the number of corrugated layers. The thickness of corrugated cardboard is directly proportional to the strength of corrugated cardboard. Therefore, under the premise of a certain weight of corrugated paper and surface paper, in order to obtain high-strength cardboard, it is necessary to thicken the size of corrugated cardboard. Due to the thickness of corrugated cardboard, making The box itself is bloated, which reduces the available space and increases the cost of production

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