What materials are most of the biodegradable lunch boxes made of?

Pulp Molded Lunch Box (Plant Fiber Molded Tableware)

Pulp-molded tableware needs to have certain biodegradable utensils economic advantages on the road of banning plastics. First of all, in terms of raw materials for the enterprise, the disposable pulp-molded lunch box uses wheat straw, bagasse and other plants and fibers as raw materials. The PP material is formed by improving the design of the pulp molding wet pressing process, and adding some food-grade additives such as water and oil resistance to the pulp to achieve the effect of holding hot and cold processed food.

The fiber factory is currently the most active type of food container on the market. Taking Hainan Province as an example, the use, circulation, sale and storage of plastic tableware are prohibited. Pulp molded tableware is undoubtedly an ideal plastic substitute.

The bagasse disposable lunch box is a completely degradable lunch box, which can be completely degraded into organic matter under the conditions of industrial composting or household composting in 90 days, returning to nature.

2. Corn starch-based lunch box

The cornstarch degradable lunch box is made of natural cornstarch and plant fiber as the base material, supplemented by biopolyester, polyol and other substances.

Corn starch powder box can be degraded naturally in the soil and natural environment. According to the composition of the powder box, its degradation rate can reach 60%-80%, which can replace plastic products to a certain extent and reduce white pollution to the environment. It is an ideal substitute for the widely used but controversial "sterilized tableware" in the catering market.

3. PLA biodegradable tableware

The PLA degradable lunch box usually refers to the product of the PLA composite film and the pulp molded product combined in the pulp molding process, that is, the PLA coated product.

PLA composite film is a kind of fully degradable film that is processed by production enterprises from polylactic acid as raw material. We can compound it on pulp molding and paper products through different heating at the same time.

Polylactic acid (PLA) is a new type of biodegradable material that uses renewable plants for resources (such as corn) made from starch raw materials. The starch raw material is saccharified to increase glucose, and then fermented by glucose and certain strains to produce high-purity lactic acid, and then synthesize a method through analytical chemical reaction and synthesize polylactic acid with a certain molecular weight. It has its own good biodegradability. After use, it can be completely degraded by microorganisms in nature. It will eventually produce carbon dioxide and water without polluting the corporate environment. This is very important and beneficial to our protection of ecological and environmental issues. It is recognized as an environmental relationship. Friendly materials.

In view of the advantages of polylactic acid, the combination of the composite process and the pulp molded products can not only save the use of water and oil repellents, but also can better play the role of sealing the pores of the pulp molded products, so that products that cannot resist alcohol can prevent Leak of ethanol. At the same time, after the pores are closed, the tableware reduces the air permeability of the product during actual use, and the heat preservation performance is higher, and the heat preservation time is longer.