Honeycomb Paperboard Technology Process Application

The environment is the condition for human survival. Resources are the dependence of human survival. At present, the packaging industry in all countries in the world is struggling to find solutions to environmental pollution and recycling of resources. Honeycomb paperboard, also called honeycomb sandwich paperboard, is a kind of green environmental protection material with light weight, low material consumption, low cost, high strength, good buffering performance, sound-absorbing heat insulation, and easy recycling. In recent years, the packaging field has strongly promoted Paper-based plastic and paper-based wood make this green and environmental protection material gradually become a new type of green packaging material, and its application in the packaging field is gradually paying attention to and developing.

Honeycomb cardboard performance

1, the structure of honeycomb paperboard

Honeycomb paperboard is a sandwich material that uses a biomimetic mechanics structure based on the force principle of a honeycomb hexagonal structure. It is the upper and lower two layers of the panel and the middle honeycomb core paper, with a certain adhesive bonding, shaping, drying formed.

2, the production process of honeycomb paperboard

At present, there are many kinds of honeycomb paperboard production lines used in China. From paper feeding (raw materials) to finished products (honeycomb), it is automatically completed by multiple processes.

The main equipments involved in the honeycomb paperboard production line include: paper supply system, glue supply system, drying system, cutting machine, press pelletizer, conveyor belt, stretching machine, core coating system, core-face composite system, surface pressure Heating plate making machine, cutting board machine, etc., its production process flow chart is:

At the same time on a number of rolls of paper "longitudinal gluing and pre-embossing compound and drying "slicing" automatic collection "compact" paper core open "paper core gluing" release paper

"Compound" pre-rolling "drying" flattening "cut-off" quickly separate "collection

3, the performance of honeycomb paperboard

(1) Low material consumption, high specific strength and specific rigidity, and light weight.

Bees consume the least amount of material to build the largest and most solid honeycomb. According to scientific research, the geometric structure of the honeycomb forms a structure that resembles an arch bridge as a whole, thereby increasing the compressive strength of the surface by 100 times. Honeycomb paperboard uses a honeycomb structure and therefore also consumes the least amount of material to obtain maximum volume and maximum strength and stiffness. In the case of the same paper consumption, it is higher than corrugated board ..., close to EPS (expandable polystyrene foam), only a few tenth of water.

(2) Excellent buffer vibration isolation function.

Honeycomb paperboard has a core structure and has excellent buffer vibration isolation function, close to EPS.

(3) Good heat and sound insulation.

Honeycomb core honeycomb cell is a closed structure, which is full of air and do not circulate. Therefore, it has good heat insulation and sound insulation properties.

(4) Strength and rigidity are easy to adjust.

Change the thickness of the core paper, gram weight or change the honeycomb core aperture, the height of the stem, honeycomb cardboard can get different strength and stiffness.

(5) Special processes can be performed to obtain unique features.

Honeycomb paperboard is a full-paper material, easy to carry out special processing to obtain special properties such as waterproof, fire-retardant, anti-mildew, and curing enhancement. This is one of the reasons why honeycomb paperboard can be promoted and applied.

(6) The export does not need fumigation and is free from quarantine.

Honeycomb paperboard is sterilized and sterilized by infrared drying or microwave drying in the production process. Therefore, there is no need for fumigation and quarantine for export. This can be used to replace the wood to a certain extent for the packaging of export products.

(7) Environment-friendly products.

Honeycomb paperboard has no pollution in the production process, but can be recycled and recycled, and it is also easy to dispose of. Therefore, it can replace EPS as a buffer material.

Although the honeycomb paperboard has the above advantages, it also has some drawbacks, such as poor burst resistance, folding endurance, and puncture resistance, which limits its application in certain aspects; the processing performance is poor and cannot be likened to Corrugated cardboard is very easy to be made into box-type packaging containers. Even if it can be produced, the degree of automation at the time of production is low. At the same time, when printing, poor printability cannot meet the needs of modern decoration and decoration, which also limits its packaging. Aspects of application.

Honeycomb paperboard application

From the above, the honeycomb paperboard has the advantages of light weight, high flat compressive strength, good cushioning performance, etc., belonging to the environment-friendly green material, but at the same time it also has certain disadvantages. Therefore, we can make every effort to avoid weaknesses, make full use of its advantages, and give full play to its advantages. At present, the application areas of honeycomb paperboard mainly include construction industry, packaging and transportation industry, funeral industry, and agriculture. (to be continued)