How are biodegradable bags made? What will it end up being?

2024-08-22

First, the production process of biodegradable bags


The production process of biodegradable bags is different from ordinary plastic bags, and its main raw materials come from biodegradable polymers, which go through a series of processing processes and eventually form our common biodegradable bags.

1. Raw material preparation: Select biodegradable polymer materials that meet the standards as the main raw materials, which are generally derived from plants or renewable resources.

2. Mixing and stirring: the selected raw materials are mixed and stirred to make the components fully mixed evenly.

3. Extruder extrusion: the mixed raw materials are sent to the extruder for high temperature and high pressure extrusion treatment, so that the raw materials are melted and extruded into a film.

4. Mold molding: The melted material goes through a series of cooling and molding processes to form the prototype of a biodegradable bag.

5. Printing and cutting: The necessary printing treatment and cutting of the biodegradable bag is carried out to increase its functionality and ease of use.

6. Quality testing: Finally, quality testing is carried out to ensure the quality and safety of the product.


Second, the final change of biodegradable bags


What the biodegradable bag eventually becomes depends on its material and environmental conditions. If fully biodegradable materials such as polylactic acid (PLA) are used, the bags can be completely broken down into substances such as carbon dioxide and water under the right conditions, returning to the natural environment. And this process does not happen overnight, usually requires a period of microbial action to complete.


In the process of biodegradation, the bags are first used by microorganisms in the environment, which secrete enzymes to break down the polymer materials in the bags. With the continuous action of microorganisms, the polymer material is gradually broken down into smaller molecular fragments, which are eventually completely absorbed and utilized by microorganisms and converted into energy and substances required for their own growth and reproduction.


However, this process is affected by environmental conditions such as temperature, humidity, light, and the type and number of microorganisms. Therefore, the specific decomposition time of biodegradable bags may vary. Under some ideal environmental conditions, these bags can be completely decomposed within a few months; In some harsh environmental conditions, it may take several years to complete the entire decomposition process.


Biodegradable self-adhesive bags, as a new type of environmentally friendly packaging materials, are popular because of their special biodegradation characteristics. Compared with traditional plastic bags, this kind of product has superior self-adhesive, so that it has a good sealing performance during use, and can better protect the items in the bag. Its main biodegradation ability can be decomposed into natural substances such as water molecules by microorganisms in a relatively short time, which not only reduces the pollution to the environment, but also protects the ecological environment of the earth. The promotion and application of such products will promote the sustainable development of society.

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