Today, the presence of plastics in our lives is an undeniable fact. The use of these materials is increasing day by day due to their features such as strength, durability, lightness, usability in various applications and most importantly, cheapness. Plastics are produced from oil by-products, and because of the world's need for fuel, they must exist, and no one extracts or imports oil to produce plastics.

The most important problem that plastics have created around the world is that they remain in the environment, especially seas and oceans, for 100 to 400 years after consumption.

But by adding biodegradable materials to plastics, Zarrin Naghsh company takes advantage of all their advantages and at the same time avoids their environmental problems.

Biodegradable is an additive that is added to plastics before the production process (extrusion) and causes the final product to return to nature in a short time. Products containing biodegradable materials have all the characteristics of plastics such as strength, transparency, printability, reusability and recycling.

The meaning of decomposition is a process in which the chemical structure of plastic is changed due to environmental conditions and the material is divided into smaller pieces. Biodegradability is a type of decomposition that microorganisms such as bacteria, fungi, microbes and algae make plastic return to the nature's cycle.

The useful life of products containing this type of additive during production is adjusted according to the customer's request and the amount of time with a small margin of confidence. Several factors such as sunlight, heat and stress can speed up the decomposition process or make sure that the decomposition process happens.

Common plastics such as polyethylene and polypropylene are not biodegradable due to their high molecular mass and despite the fact that their molecular structure is mostly composed of carbon and hydrogen. Although this molecular mass is the reason for their extraordinary properties, it also makes them inaccessible for oxygen and microorganisms to the chains of these materials. By using oxidation enhancing additives, the shelf life of the product can be controlled by accelerating the natural oxidation process that breaks down long chains into smaller chains digestible by microorganisms.