What is a Compostable Ziplock Bag Made of

What is a compostable ziplock bag made of? By definition, it is a composite-product of materials and raw materials that can be reabsorbed by the environment. This has created several advantages over the old plastic bags by considering the impact these items have when dispersed into nature by humans.

The materials on the market can be grouped into a number of classes, characterised by their different prevailing components:

• Starch-based materials

• Polyvinyl alcohol-based materials

• Lactic acid-based materials

• Wood-based materials

Both compostable plastics and biodegradable plastics are materials that break down into their organic constituents; however, composting of some compostable plastics requires strict control of environmental factors, including higher temperatures, pressure and nutrient concentration, as well as specific chemical ratios. These conditions can only be recreated in industrial composting plants, which are few and far between. Thus, some plastics that are compostable can degrade only under highly controlled environments. Additionally, composting typically takes place in aerobic environments, while biodegradation may take place in anaerobic environments. Biologically-based polymers, sourced from non-fossil materials, can decompose naturally in the environment, whereas some plastics products made from biodegradable polymers require the assistance of anaerobic digesters or composting units to break down synthetic material during organic recycling processes.

Compostable plastic granules are used as raw materials to manufacture biodegradable plastic bags. These granules are made from natural polymers and starch. They decompose very naturally making the biodegradable bags eco-friendly.