PET is semiporous and absorbs molecules of the food contained, and the residue is difficult to remove, heating the plastic enough for sterilization would destroy it. Therefore, most recycled bottles are used to make lower grade products, such as carpets. To make a food grade plastic, the bottles need to be hydrolysed down to monomers, which are purified and then re-polymerised to make new PET.
The empty PET packaging is discarded by the consumer after use and becomes PET waste. Our local government and waste collection agencies have started to collect post-consumer PET separately from other household waste. Besides that there is container deposit legislation in some countries which also applies to PET bottles.
PET flakes are used as the raw material for a range of products that would otherwise be made of polyester. Examples include polyester fibres a base material for the production of clothing and pillows, polyester sheets, strapping, or back into PET bottles.
The further treatment process includes crushing, washing, separating and drying. Recycling companies further treat the consumer PET flakes by shredding the material into small fragments. These fragments still contain residues of the original content, shredded paper labels and plastic caps. These are removed by different processes, resulting in pure PET fragments, or PET flakes. PET flakes are used as the raw material for a range of products that would otherwise be made of polyester. Examples include polyester fibres, polyester sheets, strapping, or back into PET bottles. Melt filtration is typically used to remove contaminants from polymer melts during the extrusion process. One typical system will consist of a steel housing with the filtration medium contained in moveable pistons or slide plates that enable the processor to remove the screens from the extruder flow without stopping production. The contaminants are usually collected on woven wire screens which are supported on a stainless steel plate. For the recycling of polyester flakes it is typical to integrate a screen changer into the extrusion line. This can be in a pelletizing, sheet extrusion or strapping tape extrusion line.
PET flakes polymer is very sensitive to hydrolytic degradation, resulting in severe reduction in its molecular weight, thereby adversely affecting its subsequent melt processability. Therefore, it is essential to dry the PET flakes or granules to a very low moisture level prior to melt extrusion. Dehumidifying Drying – These types of dryers circulate hot and de-humidified dry air onto the resin, suck the air back in a closed loop operation. The efficiency of moisture removal depends on the air dew point. If the air dew point is not good, then some moisture remains is the chips and cause Intrinsic Viscosity loss during processing. The combination of recycling step and production step results in a competitive investment costs and helps to reduce energy consumption and maintenance while remaining user-friendly. PET flakes are also a valuable secondary resource for strapping bands, which can be made from up to 100 % recycling PET. In order to meet the high intrinsic viscosity required, the material undergoes a solid state polycondensation process with the Starlinger iV+ technology.
Special properties such as tensile strength, abrasion resistance, and low moisture absorbing capacity, make PET the most important raw material for manufacturing synthetic fibres. Textiles made of PET are crease resistant, weather resistant and fast-drying, which makes them an excellent choice for manufacturing sports clothing – everyone can make a use of a cosy polar fleece in winter time.
PET flakes is one of the few thermoplastics that can be upcycled to achieve resin-like quality through SSP treatment. Today, post-consumer bottle flakes are successfully used for packaging, high Intrinsic Viscosity strapping bands, and filaments. Bottle recycling requires the highest standards in terms of decontamination.
The PET bottles annually in circulation in Europe are not returned to the packaging market. Instead, they are used for energy recovery, landfill or are recycled to granulate to be used outside the food industry. As it is necessary to become more resource-efficient, this initiative sets out to support the market replication of a new process for high-quality food grade PET flake recycling. The technology shall be demonstrated as a safe and reliable way to reduce the energy consumption during the recycling process of PET bottles. The project aims at establishing the flake technology as a standard facility and as an integrated solution in the food industry.
When the PET bottles are returned to an authorized redemption center, or to the original seller in some jurisdictions, the deposit is partly or fully refunded to the redeemer. In both cases the collected post-consumer PET is taken to recycling centres known as materials recovery facilities where it is sorted and separated from other materials such as metal, objects made out of other rigid plastics such as PET flakes, polypropylene, flexible plastics such as those used for bags, drink cartons, glass, and anything else which is not made out of PET.
Post-consumer PET is often sorted into different colour fractions: transparent PET, blue and green coloured PET, and the remainder into a mixed colours fraction. The emergence of new colours further complicates the sorting process for the recycling industry.
Being one of the trusted firms in the industry, we are highly engaged in providing a unique range of cold washed PET Flakes. With sincerity and hard work of our experts, we have carved a niche for ourselves in this domain by manufacturing, Exporting and supplying Industrial Washed PET.
Being the best organizations of royal group, we are highly engaged to offer a premium quality range of Green PET Flakes. The provided flakes are widely used for making different types of products. These flakes are white, green and brown color
JV partner WHEREAS the foreign 1st part one person from any country and Local Part 2nd Parties Bangladeshi have decided to start a business jointly deal with one another concerning a business .
1.To set up modern Chemical and GeoTextile Mills with all modern technical know how and facilities in pet bottle of Bangladesh . 2.To establish a modern Chemical industries and to carry on the business of recycling and allied manufacture and do lawfully everything necessary and expedient in connection therewith. 3.To set up modern Recycling Industry with all modern technical know how and facilities in any part of Bangladesh . 4.To carry on all or any of the business of geosynthetics, chemical and recycling manufacturers, exporters, importers, wholesale and retail dealer in textile, fabrics in all kinds, mill owners in geotextile polyester, chemicals and recycling goods, buying house and leather garments of all sorts.