Bags made of biodegradable polythene film, which decompose when bear to sun, air, and moisture, and are also suited for composting have been projected as an alternative to conventional plastic shopping bags. However, they do not willingly decompose in a sealed landfill and symbolize a possible contaminant to plastic recycling operations.

Natur-Tec an environmentally friendly alternative to conventional plastics manufacturing biodegradable and compostable trash bags. Plastic custom bags have advantages and disadvantages when compared to alternatives such as paper bags. Heavy duty multiple-use shopping bags are frequently considered environmentally superior than single-use paper or plastic custom bags. Single-use bags can be recycled, or can be reused by persons as trash bags, storage bags, and so on.

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