Application of honeycomb paper core or honeycomb paperboard in writing board

Abstract

The invention relates to the application of a honeycomb paper core or a honeycomb cardboard in a writing board, which is characterized in that the honeycomb paper core or the honeycomb cardboard is used as a cardboard core of the writing board and is fixedly arranged between a panel and a base plate. The thickness of the honeycomb paper core or the honeycomb cardboard ranges from 5 to 50mm, and the weight is 110 to 180g / m<2>. The panel and the base plate adopt fiberboards, or zinked sheets, or plastic boards, or white boards, or cloth, the thickness ranges from 0.5 to 3mm, and the weight is 100 to 700g / m<2>. With the application, the writing board is great in strength, smoother, light in weight, and low in cost.

Description

technical field [0001] The invention relates to an application of a honeycomb paper core or a honeycomb paperboard, in particular to an application of a honeycomb paper core or a honeycomb paperboard in a writing board. Background technique [0002] Honeycomb paper core and honeycomb paperboard are new all-paper materials that have been gradually used in the packaging industry in recent years. The honeycomb paper core is made of recycled high-strength corrugated medium paper or kraft cardboard with a weight of 105-180 grams per square meter, processed by special equipment. Its appearance is similar to that of a bee honeycomb into a regular hexagonal structure. Honeycomb paperboard is a board formed by stretching and shaping the continuous honeycomb paper core through special equipment, and pasting the upper and lower sides with sand tube paper with a basis weight of 160-530 g / m2. [0003] Obviously, honeycomb paper core and honeycomb paperboard are green and environmentally...

AI Technical Summary

Problems solved by technology

The core of the writing board is made of plastic board, plywood, and sawdust board, which is characterized by smooth surface, strong and durable, but the disadvantage is that the core is expensive, the board is heavy, and the transportation cost of the writing board is high.

Foamed plastic is used as the core of the writing board. Although the foamed plastic is light and cheap, it is a white polluting material and difficult to degrade. It has been banned in developed countries such as Europe and the United States.

The use of corrugated board as the core of the writing board is the most common material in the writing board market. It is characterized by moderate price, light weight, and environmental protection material. The disadvantage is that it lacks strength and the produced writing board is too soft; The corrugated board is unidirectional, the surface is uneven, the amount of glue is not easy to apply evenly when sizing, and it is easy to deform after drying; and the thickness of the corrugated board is limited, and the thickness of the corrugated board needs to be multi-layered during processing. High product rate

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