Green packaging protects the urban environment

First, the role of packaging on the environment

The role of packaging in the environment is twofold. One is positive protection and the other is negative pollution. At present in our academic field or in the field of packaging and environmental protection, many people, in addition to studying the contribution and role of packaging in goods, are more concerned with the negative impact of packaging on the environment - pollution. In fact, packaging has a considerable role in the protection of the environment, and this is often forgotten in the current people's visual and discussion topics. Recently, when the author visited the United States to inspect the packaging problem, he unexpectedly discovered that the beautiful urban environment in the United States is largely due to their full attention and research on packaging.

The best explanation for packaging's contribution to environmental protection may be their agricultural and sideline products and building materials packaging.
U.S. agricultural and sideline products are almost all packaged, from the sales and packaging of small boxes to large-scale packaged transport packages are reflected in agricultural and sideline products (vegetables, etc.), making the city without any surplus of agricultural residues. Before the agricultural and sideline products reach the city for sale, they are processed and packaged in advance on the farm or place of production. The 100% edible parts enter the shopping mall or enter the city, minimizing the inedible waste, so that the urban pollution source can be eliminate.

What is more surprising is the building materials packaging in the United States. The pollution of any city, to a large extent, is the pollution caused by the circulation and use of the construction industry and building materials. Such pollution has been well solved in the United States through scientific packaging. The following focuses on the status quo of building materials packaging in the United States.

Second, the green packaging in the building materials market 1, the transaction method In the United States a lot of building materials market, a wide range of building materials and packaging is very scientific. They concentrate their building materials on one or a few large building materials markets in the city. When buyers and sellers conduct transactions, the delivery and price allocation are separately carried out in different directions in the same market, because the consumption of building materials is large and the varieties are also More often than not, it is difficult to trade in every type of building material storage. Only after listing the product types and specifications in more than one place, go to a fixed place and then invoice. But many of them are conducted in the market, which is very similar to our supermarket shopping.

2, the packaging form of building materials, many forms, different sizes. Mainly reflected in the following areas:
In the diversity of structural forms, it is more determined by building materials with different shapes, different materials, and different characteristics. This mainly depends on the diversity of building materials themselves.
Bag format: including plastic woven bags, paper-plastic composite bags and nylon mesh bags.
Plastic woven bags: This type of bag-type packaging is mainly used for the packaging of fine sand and lime, and some for asphalt packaging.
Paper-plastic composite bag: It is mainly used for the packaging of cement, lime and powder.
Nylon mesh bag: mainly used for packaging of coarse sand or granular stone.
Metal drums: There are square buckets and drums. This form of packaging is primarily used for the packaging of adhesives and decorative liquid materials.
Strapping packaging form: mainly metal and non-metallic strapping. For wood, metal materials and plastic plate and tubular building materials packaging and strapping.

3, loading and unloading and stacking package loading and unloading, almost all mechanical forklift loading and handling.
Tray: As a heavy or fixed structure of building materials packaging, such as stone bricks, door frames, glass, etc., are used in the form of tray packaging, the tray is fixed with a stretch film.
Stacking form: In order to facilitate the purchase and loading and unloading, it usually has a multi-layer shelf, which makes stacking stable and easy inventory management. Many markets have specialized stacking brackets for building materials, which can reach a height of more than ten meters. Transportation of incoming and outgoing goods is achieved by special machinery that can be lifted and lowered.

4, the fixed form of packaging fixed form of building materials packaging shrink film, self-adhesion film and plastic rope. There is also a small amount of strapping used for fixing.
Shrink film fixation is mainly used for products or materials that require waterproofing and surface protection against scratches, such as wood products, aluminum, copper products, or other metal or plastic components for surface decoration. Self-adhesive film is mainly used for bricks, processed marble, ceramic tiles and other long-finished products with fixed structures.

Plastic ropes are mainly used for long lengths and small cross-sectional areas.

The building materials that are generally sold in the U.S. building materials market are mostly molded parts, which are pre-processed products or materials. At the time of construction, the minimum amount of processing time is saved and the labor is saved. At the same time, the processing pollution (dust and noise) is also reduced.

5, greening of packaging materials

This includes two meanings: one is that the materials used do not harm the environment as much as possible; the other is the use of less packaging materials, lighter weight, and reduction. Most of the plastic packaging, paper-plastic composite packaging and wooden pallets are used.

Third, the use of green building materials and construction of the green packaging

1. Greening of building materials production sites

At the building material production site, mechanized operations are used. Including in cement plants, stone materials and river sand processing or collection sites, wood production sites and other processing are used mechanized packaging operations. It minimizes pollution (dust and noise pollution) when it is packaged, and it is far away from people or residents living areas. The building materials market is also located in the suburbs.

2. Green packaging in transportation of building materials

Transportation of building materials is mostly chosen after work or before work, but it is not always in the dead of night. This will not affect people's work nor affect people's nighttime rest, but also eliminate pollution. After loading, the building material is wrapped with a tarpaulin (woven cloth or plastic film) so that it is not exposed. This avoids pollution along the way during transportation.

3, green packaging used in building materials

(1) Overall packaging at construction site

High-rise buildings before the construction site and construction are all packaged. The construction site of any building is first surrounded by a wall made of metal or wooden plates, or partially covered with turf or a soft cloth during construction. High-rise buildings will be constructed in the closed package, so that the construction will be truly green.

(2) Green packaging for site slope

Wherever construction takes place, it is covered with green plastic film or green woven cloth to prevent large areas of dry mud and sand dust from flying. When the construction is completed, the turf is laid immediately to maintain the moisture of soil and water.

(3) Construction completed packaging recovery

After the construction is completed, those used packages will be immediately recovered or taken away by the supplier to prevent contamination of the packaging waste.

All of the above-mentioned measures related to packaging fully reflect the close connection between building materials packaging and the environment. A beautiful environment cannot be separated from packaging.

Fourth, the conclusion

1. The above-mentioned green issues in the production, transfer, and use of building materials, packaging, and building materials are known through investigations in the United States. Through the packaging of building materials, a simple conclusion can be drawn that packaging is conducive to environmental protection.

2. Although our country's building materials packaging has received attention. However, many building materials are still unpackaged, and in many people's eyes, building materials are considered redundant. This may be because of this, it made us very backward building materials packaging and affect the city's environment.

3, building materials packaging is a system engineering problem. There needs to be many aspects of collaboration and related policy support. Only by solving this system engineering problem can we truly manage the urban environment.

4. We still lack sufficient understanding of building materials packaging. To solve the contradiction between packaging and the environment, we must start with understanding.

5, building materials packaging should be as important as other commodities. Only in this way can we make good use of resources, protect resources and protect the environment, especially the urban environment.