Corrugated carton packaging moderate design

The proper packing of cartons means that the goods are properly packaged and properly used, and the excess is excessive. This is a problem that will arise from the design of the carton. The original three-ply carton will be usable, but a five-ply carton will be used; if one cubic meter is used, only 1.5 cubic meters of cartons will be used. Free up a space. Many times, these problems are caused by unreasonable user requirements. Therefore, from the perspective of the carton factory, users should be persuaded to tailor. In fact, packaging only needs to satisfy two requirements of the product, namely, protection of goods and beautification of goods. The packaging that meets these two requirements is moderate packaging, and it is also qualified packaging.

To achieve proper packaging of goods, for Chinese corrugated box manufacturers, the factors considered should not be limited to the carton products themselves. In fact, from the perspective of the development status of the industry as a whole, and from various technical perspectives, they will all have more or less impact on moderate packaging. to. The so-called moderate packaging of goods shall include: proper protection of commodity packaging; proper use of materials for commodity packaging; appropriate volume and capacity of commodity packaging; reasonable cost and cost of commodity packaging; The following article will analyze the following aspects:

The advanced production equipment ensures that the protective function of the carton packaging produced is comparable to the international advanced level. The first thing we think of should be the number of corrugated board automatic production lines. According to the statistics of the International Corrugated Box Association, in 2005, there were 600 production lines in the United States, with an annual output of 400 million square meters of corrugated cardboard, while China produced 13 billion square meters of that year, but there are as many as 1200 corrugated cardboard production lines. Each tile line in the United States produces 6,666 square meters. Each production line in our country can produce 1,083 square meters. Moreover, not all of our cartons are produced from tile lines, but rather, a considerable portion of them are produced by single-machine-based single machines. It is estimated that this amount accounts for one third of the total amount. In this way, each tile line in China can actually produce only 7.22 million square meters, which is only one-ninth of the US corrugated board production line. In addition, among these tile lines in China, there are old tiles lines that have been in production for more than 20 years and are still being used in maintenance. But according to the international standard; er, the service life of more than 15 years after the tile line should be eliminated. What is more noteworthy is that tile lines with a speed of 80 meters per minute and a width of 1.6 meters account for more than 50% of the production line, but they are still in operation. This directly affects the quality of our corrugated board. At the same time, the level of good equipment cannot be brought into full play, and the construction of advanced equipment will not be able to play its capacity, but it will also be at a disadvantage in vicious competition.

Therefore, we recommend that any equipment purchased within 15-20 years should be phased out in order to maintain the advanced nature of our tile. In addition, about one-third of the corrugated cardboard produced by a single machine, its indicators are difficult to reach the international level, it should also be eliminated, replaced by new advanced equipment. From an objective point of view, China's current tile line has greatly exceeded the market demand, so it should promptly eliminate backward equipment, replace it with more advanced equipment, and give full play to the capabilities of advanced equipment. In this way, the competition between backward equipment and advanced equipment will end soon.

Efforts to reduce the cost of the carton packaging of goods in order to promote proper packaging From the microscopic point of view, each carton factory needs to save manpower and improve efficiency. Visiting the Israeli carton factory found such a configuration. This is also the only configuration in the world that the author currently sees – the factory has only one corrugated cardboard production line, and a tile line produced by a US Lanston and a Japanese Mitsubishi Heavy Industries. Can meet the requirements of the country, full of tasks, high production efficiency. Comparing with China's corrugated box manufacturers, it is often due to configuration problems that appear to be inefficient.

From an industry-wide macro perspective, internationally advanced industrial countries, such as the United States, use centralized manufacturing and decentralized manufacturing. That is, a factory with a corrugated board automated production line concentrates on the production of the board, and then the various box factories Buy back and then decentralize the box, which not only ensures the quality of the carton, but also improves the efficiency. Most of the carton factories in China are self-made and self-made. Make the carton production efficiency decrease, the cost increases. Fortunately, in recent years, Zhejiang, Guangdong and other places have begun to adopt methods of centralized plate making and decentralized box making, so that the manpower required on the production line has been greatly reduced, and good results have been achieved.

Carton design methods and material selection are suitable to ensure proper packaging of goods

Let's talk about 楞 type first. Corrugated cardboard boxes have K, A, C, B, D, E, F seven types of standard. The most commonly used five-layer corrugated mine in China is a combination of A and B, while the advanced countries in Europe and America use more C and B concrete. The latter can save some raw materials. For example, Japan is a high-temperature, high-humidity environment, and at the same time, the highway grade standard is not as good as that of Europe and the United States. Therefore, type A is used instead of type C. The situation in China is similar to Japan. As an anti-vertical pressure, high-compression-strength outer packaging is required, so A-type corrugated cartons are generally used (most of double-sided single corrugated type A-type corrugated). The B-type corrugated box has a lower vertical compressive strength than the A-type, but has a large anti-plane compressive strength and is resistant to transportation. The medium-shock vibrating box is suitable as a shipping box for canned metal products. At the same time, the corrugation height of Type B corrugated boxes is lower than that of Type A and Type C, and it is easy to bend and process. It is suitable for packaging frozen fish and frozen products. In general, single corrugated cardboard boxes are suitable for type A and C. Dual corrugated cardboard boxes are used for type A and 8, and C and B type combinations are the most ideal. Types B and B are close to the surface because of their strong impact resistance. With type A or type C, due to its elasticity and strong cushioning force.

Combining these characteristics, when considering proper packaging of goods, due to the vast land in China and the great differences in climate everywhere, the corrugated shapes and combinations need to be properly selected according to the local and product transportation areas.

Next discuss the choice of raw materials. Nowadays, the trend of raw material selection in the industrialized countries in the defense industry is: low-weight, high-strength base paper is used for face paper, and high-gram weight corrugated paper is used for corrugated core paper. In our country, the opposite is true. This choice abroad is based on the premise that the technical indicators of corrugated board can be maintained, so as to achieve the purpose of saving raw material costs. Some factories in China now have begun to make such choices, but they still need to be vigorously promoted so that the cost of the carton can be reduced only if the original performance of corrugated cardboard is maintained.

Again, from the paperboard itself, the number of five-layer corrugated boards should be reduced and the number of three-layer corrugated boards increased. Foreign advanced industrial countries mainly have a large proportion of three-layer corrugated cardboard, while five-layer corrugated cardboard accounts for a small proportion. And foreign countries mainly choose pure wood pulp paper. Because of the lack of wood in our country, we have to use wood pulp and some straw pulp. This makes the strength of paper made in China not high. Because the paper tension is not enough, in the case of high-speed operation of the machine, One run will break the paper, causing the automatic production line of corrugated board to run less than the ideal speed. The automatic production line can only be maintained at a low speed, so the equipment function can not be played well, and the quality of the Paper Box is not ideal, which indirectly affects the proper packaging of the paper box. It is recommended to change the previous practice by using good paper instead of containing some straw pulp paper and replacing three-layer corrugated cardboard with five-layer corrugated cardboard. This will not only reduce transport costs, but also reduce unnecessary troubles in the recycling process of cartons, and ensure that the cartons are moderate. package.

Finally, the different shape designs will also have a major impact on the proper packaging of cartons.

The so-called corrugated shape refers to the corrugated profile of the corrugated profile. The main difference is the corrugation peak and corrugated arc size, and there are three types of corrugated shapes: U-shaped, V-shaped, UU-shaped, U-shaped peaks and valleys. Large, V-shaped, UV-shaped in the middle. Different shapes have different performance characteristics (see Table 2).

Combining the advantages and disadvantages of U, V and UV three kinds of corrugated shapes, the advantages and disadvantages of U-shape and V-shape are obvious. Although the advantages of UV-shape are not ideal, the disadvantages are not so prominent, and the comprehensive performance can be adapted to most corrugated packaging. General requirements. Therefore, UV-shaped corrugated iron is widely used in various countries of the world. Of course, some packages that require special emphasis on cushioning properties and shock absorption, or for certain corrugated packaging containers that require particularly high stiffness and high strength, should be selected for U-shaped or V-shaped corrugated boxes that have some special effect in these areas. To meet special packaging requirements for specific contents.

In summary, according to the packaging requirements for different contents, choosing different carton shape design will inevitably better meet the requirements of moderately corrugated carton packaging.

(author/Che Sang-Fu)

<Corrugated boxes> July 2005 issue