Honeycomb cardboard panel is a new type of eco-friendly and energy-saving material that is made based on the principle of honeycomb structure in nature. It connects countless hollow three-dimensional regular hexagons made of corrugated cardboard by the bonding method to form a complete load-bearing unit - paper core, and is bonded with surface paper on both sides to form a new type of sandwich structure. With its light weight, low cost, high strength, and recyclability, honeycomb cardboard panel is highly favored by the market, especially in developed countries and regions such as the Netherlands, the United States, and Japan, and has become a new type of green packaging that saves resources and protects the environment. Honeycomb cardboard panel packaging boxes are the ideal packaging for Chinese export commodities. Their promotion and application can not only reduce the breakage rate of goods during transportation, but also replace wooden boxes and reduce costs.
Honeycomb cardboard panels are manufactured based on the mechanism of honeycomb structure in nature and is a successful application of bionics. It connects countless hollow three-dimensional regular hexagons made of corrugated cardboard by the bonding method to form a complete load-bearing unit - paper core, and is bonded with surface paper on both sides to form a new type of sandwich structure which is eco-friendly and energy-saving.
The production line of honeycomb cardboard panels consists of two parts. The first part is the unit that produces the honeycomb structure hexagonal paper core, which is a pre-process. The quality, specifications, and shape of the core paper are the basis of honeycomb products. The second part is the unit that performs upper and lower layer composite paperboard on the paper core, which is a post-process. The quality and level of post-processing are important aspects to ensure the quality of honeycomb products. The entire production process of honeycomb cardboard panels is as follows:
Core making: winding type, stacking type, paper strip butt joint type, continuous paper strip type;
Gluing: spraying method, coating method, full surface coating method;
Stretching: limited width stretching, differential speed stretching, combination of differential speed and limited width stretching, transverse stretching;
Composite: surface-coated composite, corrugated-coated composite;
Compression: pressing machine compression, extrusion compression, roller compression;
Cutting: paper cutter cutting, round blade slitting, single; middle knife cutting;
Splicing: manual splicing, semi-automatic splicing, automatic splicing (core strip butt joint, paper strip bonding);
Heating and drying: electric heating, steam heating, conduction oil heating;
Length and width cutting: computer control, working procedure control;
Special treatment: fluffing treatment, exhaust treatment, contact surface enhancement treatment.
