Honeycomb paperboard with holes in honeycomb wall surface of sandwich layer

Abstract

The invention relates to the technical field of honeycomb paperboards, and discloses a honeycomb paperboard with holes in the honeycomb wall surface of a sandwich layer. The honeycomb paperboard comprises honeycomb core paper and surface paper arranged on the upper and lower parts of the honeycomb core paper, a honeycomb is arranged in the honeycomb core paper, bonding layers are arranged on the upper and lower side walls of the honeycomb, and a drying agent is arranged between the two bonding layers. By adding the drying agent, moisture generated when the honeycomb paperboard is dried can be absorbed and cannot be adsorbed by the honeycomb paperboard, the powdery drying agent is distributed on the inner walls of the upper side and the lower side of the honeycomb through the bonding layers, and when the honeycomb paperboard is dried, moisture in honeycomb core paper can be in the honeycomb, and honeycomb communication can be achieved through the drying holes, so that water can flow in different honeycombs, the water is immediately absorbed when making contact with the drying agent, and the honeycomb paperboard drying efficiency is improved by 10-20%.

Description

technical field [0001] The patent of the present invention relates to the technical field of honeycomb paperboard, specifically, to the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer. Background technique [0002] Honeycomb paperboard is a lightweight and high-strength composite material formed by bonding upper and lower face paper to a honeycomb-shaped paper core through an adhesive. It is a typical case of human bionics research and application. Honeycomb paperboard has outstanding compression and bending resistance, so it is widely used in packaging and structural molding. [0003] At present, all honeycomb paperboard production lines cannot completely dry the moisture sealed in each airtight compartment, and the honeycomb paperboard must be ventilated and dried in a natural environment for a long time after being offline. Therefore, the publication number is CN110524964A. A honeycomb paperboard with holes on the honeycomb wall surfac...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer. By adding a desiccant, the moisture generated by the honeycomb paperboard during drying can be absorbed, so that it will no longer be absorbed by the honeycomb paperboard, and the drying holes can be realized. The honeycombs are connected, so that the water can flow in different honeycombs, and the water is absorbed immediately when it comes into contact with the desiccant, thereby increasing the drying efficiency of the honeycomb paperboard by 10-20%, and enhancing the strength of the honeycomb paperboard by more than 10%. Although the honeycomb paperboard with holes on the honeycomb wall surface of the existing sandwich layer in the prior art is provided with drying holes, the water in the honeycomb paperboard is discharged through the drying holes in the honeycomb holes in sequence when the honeycomb paperboard is drying. Under certain circumstances, the moisture in the low temperature area will liquefy again and adhere to the honeycomb paperboard, thus affecting the compressive strength of the honeycomb paperboard in the later use

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