Editor's Note: Assembled folding box is a large-scale environmental protection innovation project. The promotion and application of this patented technology needs the support and cooperation of people from all walks of life. This article is published in two parts and is aimed at attracting attention and attracting the attention of the industry.
It can be predicted that in the next three to five years, a series of assembled packaging boxes of various specifications will be applied to the packaging of eggs, vegetables, fruits, flowers, food and industrial products. A large number of papers used in cartons will be redirected to paper bags, snack boxes, and other inner packagings. The situation of white pollution and flying plastic bags will gradually decrease. All these will have an inestimable impact on the country's environmental protection cause and the healthy development of the logistics industry. The development of assembled folding boxes is adapting to the development needs of this environmental trend.
I. Project Background
According to the latest statistics, China's manufacturing industry accounts for over 50% of GDP. About 5 trillion yuan worth of domestic commodities, agricultural products, and about 300 billion U.S. dollars worth of export goods require packaging, transportation, and storage. The consumption of packaging materials is enormous. At the same time, almost all external packaging materials (except large-scale steel containers) are used for one-time use, and the accumulated packaging wastes are likely to cause pollution. At the same time, it also caused the country to spend a lot of foreign exchange on imported pulp, base paper and waste paper, and millions of tons of plastic raw materials each year. This is a heavy burden on our country’s green resources. Secondary recycling of waste paper (cartons) can also easily pollute water resources. The packaging became a double-edged sword that deeply pierced the human survival and the earth. Do we not have a better and more reasonable choice and use of good packaging? Garbage classification can solve a small part of the problem. However, we should try our best to block the source of pollution at the source. In order to protect the green environment of Castle Peak, clear water and blue sky, it also achieved economic development and environmental protection.
Everything in modern society is inseparable from packaging. Among them, the largest share is in the box. It is widely used for its neatness, stacking, and convenient transportation. Therefore, we are particularly concerned about the packaging problem. Especially regarding the sustainable development of polymer boxes.
Assembled folding box projects are fully in line with future development requirements that packaging products must have unique features, cost savings, and environmental protection requirements, and are expected to become excellent environmentally friendly packaging and universalize China into the world.
Second, the domestic box packaging status 
1. Corrugated carton: It is processed by kraft paper and imported or domestic core paper into three layers, five layers and seven layers of paperboard (mainly produced by large enterprises). It is cut into various sizes by SMEs and bound by various specifications. Applicable to all kinds of industrial products, agricultural products and other packaging, transportation, warehousing convenience. Due to the lack of strength of the carton, the goods are easily damaged. The carton is not waterproof, moisture-proof, fire-proof, and has a huge amount of use. It is mostly disposable. Waste paper recycling after use. However, water pollution tends to occur during secondary recycling. There are 152 carton enterprises in Shanghai, 68 foreign companies, and a production capacity of 8 billion yuan. The market demand in Shanghai is 4 billion yuan, and the operating rate is only 50%. There are more than 3,000 packaging companies in Wenzhou, with a total output value of 6 billion yuan, a paper consumption of 3 million tons and a packaging box of 37%.
2. Honeycomb carton: kraft paper is face paper, and the core paper is honeycombed. Its strength is higher than that of corrugated cardboard. The cost is relatively high and the amount of use is small.
3, E pit carton: three layers and other cartons are roughly the same, using the on-site packaging of goods after bonding forming. High degree of mechanical automation. It is mostly used for color packaging of foods and small appliances. It can be directly placed on shelves and used in large quantities. 
4, calcium plastic box: Extruded by the extruder calcium plastic sheet, cut into the binding after the pressure line. High strength, but less use, is also a one-time use. The cost is also higher. 
5, wooden box: manual binding by wood molding. Mainly used for large, medium, small mechanical, mechanical and electrical product packaging. (To be continued)

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