Sorting, actual process started form sorting plastic by their color and size, indeveloping countries, sorting usually done by hand, but that is a really harmful and inefficiency work. Beside, developed countries would make use of magnetic propertyto separate scrap of metals with plastics, then get purer plastics. Last but not least, an industrial machine called air classifier can separate materials by size, shape and density also play an important role in recycling. This kind of machine are commonly employed in mixed large materials with different physical characteristic need to be separated quickly and efficiently. For example, air classification is able to separate some tiny wastepaper and timbering residue form waste stream.Shredding, after sorting plastics, shredder would cut plastics into smaller slices and pieces, and plastic bottles and containers would be ground and cut into flake. Heavier and lighter plastics flakes would separated by special machine. The shredding helps in ensuring that different grade of plastics will not overlap and mix together in final product. Pureness is an important element after all, especially in business.Cleaning, the plastic flakes or chunks then washed by detergent to remove the contamination which attached on the surface of them. Once the cleaning is finished, the clean flake would pass through equipment that further separate the plastic resin types. Type by type, grade by grade. Finally get dry by moderate heat.Melting, dry flakes can be melted down and reshaped into new mold and granules. Melting process is done under rigidly regulated temperatures, otherwise they are probably to be destroyed.Making pellets, after melting, plastic pieces are then compressed into great mount of tiny pellets. In this state, plastic pellets are ready for reuse or be designed into new products. These product would be sold to other plastic manufacturing companies to be redesigned and be used in making other products.Hence, recycling plastics have many advantages. Above all, it provides a sustainable source of raw materials to manufacturing industry. Once the plastics are recycled, they are sent to manufacturing industries to be redesigned and convert to new shapes. What is more, that really contribute to environmental problem, we all acknowledged that burning waste, especially plastic would generate great mount of harmful gases, but recycling change the conceive, lead the way to a brand-new frontier, refresh imagine of people like plastic is also a kind of resource. Beside, it minimizes the amount of plastic being taken to the ever diminishing landfill sites. Most countries have no choice but designate ares for burying. When they are recycled, these place will subjected less harsh than before and develop their own industry such as agriculture or for human settlement rather than be regarded as rubbish yard. Last but not least, plastic recycling helps in migrating global warming and reduce the pollutionRecycling of materials include plastics required less energy as compared to producing. This saves tons of energy and that energy can be diverted to other field and benefit economy. Also, it will reduce the cost of producing and polish industry chain. For example, company who get benefit form cost of raw material can offer more occupation for people. That handle the employment trouble among society.In summary, any sort of effort aimed at saving the environment is very important and affected a lot. Prior to use of plastic containers by manufacturers, products were packaged. Hence, in order to keep our environment clean, reduce landfills, provide a sustainable plastics to manufacturers, it is necessary to recycle plastics.