Plastic Processing Machineries
Most of the consumer products have plastic packaging. This has led to a lot of plastic waste being accumulated the world over and leaves a huge need for this waste to be recycled profitably. This is quite voluminous and difficult to dispose off.If the waste is of a single type, e.g., LDPE or BOPP or simple mixtures such as LDPE + HDPE it can be easily reprocessed. However, when it is a laminate waste such as PET/PE (Polyester film laminated with LDPE) recycling is not possible. In such cases incineration is the usualmethod but it leads to heavy smoke generation resulting in atmospheric pollution.
Utsav Exim Ltd. has developed a process to recycle such waste. The process is ideally suited to African conditions and no imports of any type are involved.
(Basically, the process involves)
Major pieces of machinery are listed below:
Depending upon the application and type of waste filler or other additives may be added in stage (2-stage) along with bonding/compatibiliser.Use of a compatibilizer and the control of process parameters is the key to the successful operation of the technology. The compatibilizer has also been developed indigenously and this has kept the cost of the whole process low.
Due to the presence of all kinds of inks in the PET/PE film laminate waste available from conversion industry, the final colour of the product from this reprocessed material is likely to be dark (e.g., dark green/grey/black). Some further colour variation may be brought about by the presence of metallized film in the waste.