The latest breakthrough in the field of composite board - convex composite board

Corrugated fiber has been used in paper lamination for more than one hundred years. Its strength is much better than that of flat-sheet paper. However, the unidirectionality of the strength distribution of the plate leads to easy bending and deformation of the tile. Honeycomb structure has the advantages of high strength, light weight, and saving raw materials, but its structure is too imitation of honeycomb, the production process is complicated, the equipment investment is large, the processing quality is difficult to control, the production cost is high, and it is difficult to promote in a large area.

After more than two years of trials, Zhang Shiquan’s engineers from Jinan Jinshangyi Industrial Co., Ltd. have overcome the defects of corrugated and honeycomb structures and focused on the advantages of the two. They have taken the lead in the development and development of a third-generation composite structure with independent intellectual property rights, “convex composites. "Structure" was applied in the area of ​​composite board and succeeded.

Convex composite board has attracted the attention of various industries

The concave-convex composite board overcomes the defects of the traditional corrugated and honeycomb structure, and can also replace the three-layer composite F, G-tile and two-layer reed board, and has a wide range of applications. The product can be applied to the production of wine packaging and small home appliance packaging. The economic benefits are considerable. Taking wine packaging as an example, about 200 grams of whiteboard paper can be saved per square meter. Four-layer composite production of packaging cartons saves raw materials.

After the introduction of the concave-convex composite board, cartons, roller-making companies and tile-laying manufacturers all expressed their intentions of cooperation to Mr. Zhang Shiquan.

Convex composite cardboard has many advantages

The structure of “convex composite board” makes full use of the extensibility of the board, adopts physical and chemical processing methods, and processes one by one, row and row of bumps as supporting points on the surface of the board. These supporting points compose the two boards up and down and become concave and convex. Composite plate. Convex composite cardboard features focus on the following aspects:

1. high strength

Because the concave-convex core paper of the concave-convex composite paperboard adopts the arching principle and the misalignment between convexes and concaves, the strength distribution is uniform, there is no directionality, and the folding strength, flat compressive strength and impact strength in all directions are the same, completely changing the single direction of the corrugated strength distribution. The drawbacks. Convex composite board test test shows: 1 transverse compressive strength is 4.7 times that of A corrugated, C corrugated 3.8 times, B corrugated 3 times; 2 flat compressive strength: single-layer core paper is higher than corrugated medium, double layer (Ie a core) cardboard is 2.5 to 3 times the corrugated board.

2. Good surface smoothness, not easily deformed

The corrugated composite board has no corrugated paper groove scars after compounding, and the paper surface and the surface paper do not need to use high-gram heavy paper to ensure that the cardboard surface is smooth. Moreover, due to the uniform distribution of the strength of the paperboard and no directionality, the defects of the lateral bending deformation of the corrugated paper can be well overcome.

3. Save paper

Taking corrugated paper as an example, the core paper rate per meter of A-watt base paper is less than 60%, that is, 1 meter out of corrugated paper is only 0.6 meters; B-watt is less than 70%. The processing of the concave-convex structure core paper is carried out on the paper surface and the length of the paper is not affected (the corrugation is about 30% of the length of the bending molding), so the paper-out rate is 100%.

4. Simple processing technology and high production efficiency

The production of honeycomb composite panels needs to eliminate the original corrugated production line, and the production equipment has a complex structure and low efficiency, and the maximum production speed is only 30 meters/minute. The production equipment of corrugated composite board is basically the same as that of corrugated board. The production equipment of corrugated board has been perfected after more than one hundred years of development, and the production efficiency is ten times that of honeycomb board. The production of concave-convex composite cardboards eliminates the need to eliminate the original corrugating production line. Only by modifying the key parts of the corrugated production line can high-speed, high-efficiency mass production be achieved. If the production line of the concave-convex composite board is further improved, the production speed will exceed the corrugated board production line and the energy consumption will be reduced.

Concave composite board can save 2.4 million yuan a year

Compared with the production of corrugated board, the production of concave-convex composite board can save 25% to 30% of the original paper, which is undoubtedly an innovation for the corrugated packaging industry in the low-profit era. Calculated on a five-layer production line, in the slow running (30m/min) state, working 14 hours a day, saving the core paper raw material prices at 8,500 yuan, 300 days throughout the year, can save 2.4 million yuan. The speed of production lines in developed countries is 300 meters per minute, and the average width is more than 3 meters. That is, each production line can save more than 30 million yuan per year!