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What is the biodegradation?
Biodegradation is a chemical process in which materials are metabolised to CO2, water, and biomass with the help of microorganisms. The process of biodegradation depends on the conditions (e.g. location, temperature, humidity, presence of microorganisms, etc.) of the specific environment (industrial composting plant, garden compost, soil, water, etc.) and on the material or application itself. Consequently, the process and its outcome can vary considerably.
The property of biodegradability does not depend on the resource basis of a material. This feature is directly linked to the chemical structure of the polymer and can benefit particular applications, in particular packaging. Biodegradable plastic types offer new ways of recovery and recycling (organic recycling). If certified compostable according to international standards such as the EN 13432 (preferably by an independent third party), these plastics can be composted in industrial composting plants.
Wherever possible, European Bioplastics recommends to focus on the more specific claim of compostability, and to back it up with corresponding standard references (ISO 17088, EN 13432 / 14995 or ASTM 6400 or 6868), a certification, and an according label (Seedling label via TÜV AUSTRIA Belgium or DIN CERTCO, OK compost label via TÜV AUSTRIA Belgium).
If a product is specified to be compostable, the claim is not only unambiguous (i.e. to be treated in an industrial compost plant), but there is another big benefit: It differentiates itself from products marketed to be ‘oxo-biodegradable’ or similar claims. Products marketed as oxo-biodegradable do not fulfill the requirements of EN 13432 on industrial compostability, and are therefore not allowed to carry the seedling label.
‘Oxo-fragmentation’ is not biodegradation
Plastics that are advertised as being ‘oxo-degradable‘ or ‘oxo-biodegradable’ are made from conventional plastics and mixed with additives in order to mimic biodegradation. However, the main effect of oxidation is a mere fragmentation of the material or product into small particles that remain in the environment. These products to not comply with the standards for compostability and are not considered bioplastics.
All the above information quoted from https://www.european-bioplastics.org
Yingkou Dongsheng Industry Co.,ltd specialized in producing certified compostable bags. Bottom part are our certification for compostable bags, DIN CERTCO, Seedling label for your reference.
We provide fully customized service. If you have interest on certified compostable bags, please do not hesitate to contact us.