Sourcing guide for PET washing and recycling lines: Mass production high quality r-PET bottle flake

PET (polyethylene terephthalate) is a material widely used in the manufacture of plastic bottles. However, large quantities of discarded PET bottle flakes can cause serious pollution to the environment.

If you want to learn more, please visit our website Fangtai.

The use of PET recycling and cleaning lines has therefore become essential. With washing lines, waste PET bottle flakes can be transformed into high-quality recycled material, enabling recycling and reducing the need for new raw materials.

What points should you focus on in a PET bottle washing line？

a.Determining capacity requirements: Determine the capacity requirements of the washing line based on the expected number of PET flakes to be processed

First, we need to determine your capacity requirements. Please let me know how many PET flakes you expect to process per hour in order to determine the capacity requirements for your cleaning line.

By accurately assessing your capacity requirements, we can select a washing line with sufficient capacity to ensure efficient production and meet market demand.

b.Consider washing efficiency: choose a machine with efficient cleaning and separation functions to improve the quality of the recovered material

A key step in the recycling of PET bottle flakes. Our washing line equipment uses process steps such as friction washing, rinsing, flotation and density separation to effectively remove contaminants, adherents, grease and other impurities.

In addition, our machines have the flexibility to handle a diverse range of PET bottle flakes to meet market demands.

c.Consider adaptability: ensure the line can handle different types and sizes of PET bottle flakes

When choosing a washing line, you should consider its adaptability.

Different types and sizes of PET bottle flakes may vary in size, shape and material. Ensure that the line is flexible and able to handle a wide range of PET flakes to meet market demands.

d.Ease of operation and level of automation: choose a PET bottle washing line that is easy to operate and maintain, with a high level of automation to increase productivity

Excellent washing line equipment is easy to operate and maintain, reducing operator training costs and equipment downtime.

In addition, the high level of automation of the equipment increases productivity and product consistency, further improving the quality of the recycled material.

The most critical process step in washing and recycling PET bottle

a. Crushing and pre-washing: Selecting the right crushing equipment and pre-washing system to remove contaminants and adherents

In a PET bottle washing line, crushing and pre-cleaning are important steps in the start-up phase. you should select the appropriate shredding equipment and pre-washing system to ensure that contaminants and adhesions are thoroughly removed from the surface of the PET bottle flakes to provide a good basis for the subsequent process steps.

b. Cold and hot thermal washing: choosing the appropriate washing method and selecting different washing equipment and processes according to requirements

Cold washing and hot washing are the common cleaning methods used in PET bottle washing lines. They use different temperatures and chemical solvents in the cleaning process, with some equipment differences and differences in the final cleaning effect.

Cold washing: Cold washing is the process of using water or solvents at ambient temperature for cleaning. This type of cleaning is usually suitable for general contaminants and adherents and can be removed by steps such as friction washing and rinsing. Cold cleaning equipment usually includes water tanks, spray systems and filtration units.

Thermal washing: Also called hot washing. Thermal washing is a process that uses heated water or steam for cleaning. By increasing the temperature of the cleaning medium, hot washing can be more effective in removing grease, colour and other difficult to remove contaminants. Thermal washing equipment usually includes heating systems, spray or immersion systems and heat exchange units.

c. Sorting and separation: PET bottle washing lines should use advanced bottle flake sorting technology to ensure efficient cleaning results.

For example, optical sorting systems allow for fast and accurate separation of different colours and types of PET bottle flakes.

Sorting is a key step in PET washing lines. By using efficient sorting equipment and separation technology, contaminants, foreign bodies and other non-compliant particles can be effectively removed from the PET flakes.

These sorting machines can screen and separate based on characteristics such as colour, shape and density, thereby improving the quality and purity of the recovered material.

d. Friction washing and rinsing: choose a quality friction washing and rinsing system to ensure thorough removal of residues and chemicals

Friction washing and rinsing are also important washing steps in a PET bottle washing line.

You should choose a good quality friction washing and rinsing system to ensure that residual contaminants and chemicals are completely removed from the surface of the PET flakes and to guarantee the quality and reusability of the recycled material.

e. Flotation and density separation: efficient flotation and density separation processes are used to remove grease, labels and other impurities

Flotation and density separation are key separation process steps in PET bottle washing lines.

By using efficient flotation and density separation technology, grease, labels and other impurities can be effectively removed from PET bottle flakes, improving the quality and purity of the recovered material.

f. Drying and sieving: consider efficient drying and sieving technology to ensure that the moisture content and particle distribution of the recovered material meets the requirements

Drying and screening are necessary steps in the final stage of a PET bottle washing line.

You should consider the use of efficient drying and screening technology to ensure that the moisture content and particle distribution of the recovered material meets the requirements of the market.

Flotation and density separation are the key separation process steps in a PET washing cleaning line.

By using highly efficient flotation and density separation technology, grease, colour and other impurities can be effectively removed from PET flakes, improving the quality and purity of the recovered material.

Summary:
By choosing the applicable washing method (cold or hot washing) and equipping it with the appropriate cleaning equipment and processes, you can achieve higher cleaning results and remove more contaminants and adherents, thus improving the quality and reusability of the PET bottle flake recycling material.

At the same time, you should also choose the right washing solution for your washing needs and objectives, taking into account equipment differences and cost effectiveness.

Quality control and testing

a. Using advanced quality control methods: ensuring that the washing line equipment is able to monitor key indicators such as particle size, colour and residue content

The use of advanced quality control methods in the production of PET washing lines is an important factor in ensuring consistent quality of recycled material.

We suggest you should choose washing line equipment with advanced technology that can monitor key indicators such as particle size, colour and residue content.

These indicators can be monitored and controlled in real time with equipment such as in-line sensors, optical inspection systems and colour analysers to ensure the production of high quality recycled material.

b. Implementing routine testing procedures: Establishing appropriate laboratory testing and quality inspection processes to carry out the necessary physical and chemical analysis of the recovered material

In addition to quality control of the equipment, you should also establish routine laboratory testing and quality assurance procedures.

These procedures can include the necessary physical and chemical analyses of the recovered material, such as tests for particle morphology, melt index, melt flow, etc.

Through these testing procedures, it can be ensured that the quality of the recycled material meets the customer’s requirements and market standards.

Cost-effectiveness considerations

a. Equipment price and performance comparison: compare the price and performance of equipment from different suppliers to find the best value for money

When selecting PET bottle washing line equipment, you need to compare the price and performance of equipment between suppliers.

This can help customers find the best value for money equipment and ensure they meet your expectations in terms of return on investment.

Also, you should take into account factors such as price, features and quality of the equipment and communicate and consult fully with different suppliers.

b. Energy and maintenance costs: evaluate the energy consumption and maintenance requirements of the PET bottle washing line and select equipment that will provide long-term cost efficiency

In addition to the price of the equipment, you should also assess the energy consumption and maintenance requirements of the washing line equipment.

Choosing equipment that offers long-term cost effectiveness will reduce energy consumption and operating costs, as well as reducing the cost of maintenance and repair of the equipment.

You should request relevant data and information from the supplier to enable a full cost-benefit analysis to be carried out.

c. Service and support: consider the supplier’s level of service and support, including pre-sales service, in-sales support and after-sales service

For more plastic flakes washing lineinformation, please contact us. We will provide professional answers.

In the procurement process of PET bottle washing recycling line equipment, the supplier’s service and support is a very important consideration.

Please consider the supplier’s pre-sales service, in-sales support and after-sales service levels. This includes the supplier’s capabilities in terms of equipment selection, installation and commissioning, operator training and after-sales maintenance.

It is worth highlighting that Nicety Machinery Co., Ltd is a highly respected manufacturer of PET recycling washing line equipment and is known for its excellent pre-sales, in-sales and after-sales services.

We offer professional pre-sales consultation to help customers select the right equipment for their needs. At the mid-sales stage, we provide comprehensive technical support and assistance to ensure smooth delivery and installation and commissioning of the equipment.

In addition, we offer a comprehensive after-sales service including training, equipment maintenance and spare parts supply to ensure that customers receive timely support and assistance during use.

PET flakes is constantly growing industry. PET stands for polyethylene terephthalate. In very simple words PET flakes are obtained from PET bottle wastes after a series of procedures. Such as sorting, washing, grinding, drying, etc. PET Bottles are the most commonly used product or commodity. It  is used for aerated drinks or simply packaged water bottles. Once the potential of these bottles is used they end up majorly into the landfills. Which contributes to the big chunk of waste. To reduce this waste, PET bottles are recycled into flakes or chips. 

We shall see in brief about PET flakes and their various applications. To know more about it, keep reading!

What are PET flakes?

PET  (polyethylene terephthalate) flakes are membrane-like structures. They’re prepared from used PET bottles. They exhibit similar properties, such as chemical structure, microstructure, the permeability and hydrophilicity. These properties  make it very efficient for manufacturers to use  as raw material in the plastic industry. Chemical formula for PET flakes is (C10H8O4)n.

But how Is Polyethylene Terephthalate Made? Polyethylene terephthalate is made from ethylene glycol. Ethylene glycol is usually called “MEG,” which stands for monoethylene glycol. So the PET is made from a combination of MEG and dimethyl terephthalate (DMT). 

Harmonized System (HS) for PET flakes:-

HS stands for Harmonized System. It is a standardised numerical method for classifying traded products. HS varies from country to country. Their HS code for PET flakes in India is .

Explore Plastic Waste Management Solutions

Find top machinery, plants, tools, resources, companies, and consultancy for comprehensive plastic waste recycling needs.

Uses of PET flakes 

Pet flakes are widely used in the manufacturing of products used in our day-to-day life. It is very easy to notice that we have regular contact with these products made by PET flakes partially or entirely. Toothbrush, milk cans, water bottles,  food containers, packaging material, shampoo bottles, toys , clothing fibres, carpets, chairs etc. These are the regular products made from pet flakes.  Let’s see some examples of industries that use them:-

PET flakes grades

 As there are different grades of plastics similarly there are different grades of PET flakes. Different grades depend on where it is obtained from such as beverage bottles, water bottles, food containers and shampoo containers etc. In industry PET is identified by grade to check eligibility in further different sectors of use. For example the flakes obtained from shampoo containers cannot be used for manufacturing of edible category containers, hence these are identified by different grades systems. 

Grading system also checks the impurities that may be present. These impurities are measured in ppm( parts per million). These can be PVC, PE, wood, stone etc. These non-polymeric impurities can result in the quality of the end product.

Some grade are: 

• Food grade
• Bottle grade
• Lower grade ( generally used to make carpets )
• Fiber grade

Find Expert Plastic Waste Management Consultants

Struggling with plastic waste recycling issues? Connect with top consultants specializing in plastic waste recycling.

Connect Now

Types of PET flakes

PET flakes are generally obtained from different recycled plastic bottles and containers. Therefore they have different grades and colours. They come in colours like blue, green, white, etc. All of these PET have different properties, like melting and boiling point, durability, etc.

Connect with Top Plastic Waste Service Providers

Find and connect with leading companies specializing in plastic waste recycling solutions.

Get Connected Today

Recycling Process of PET Flakes

With a growing awareness of sustainable waste management recycling plays an important role. We are very well aware about the environmental problems created by plastic. Due to this there is a need for strict administrative regulations to explore various recycling techniques to handle plastic waste. Like any other polymers, the recycling of PET can also be divided into different categories. The recycling process takes place in following steps:-

1. Manual sorting: 

Sorting into different categories and grades of pet bottles, different coloured bottles are separated for further processing. Removal of label, caps and bottle neck rings. As these bottles are post-consumed bottles it may contain food leftovers and other adhesive. It is further washed and dried for prevention of any contamination.

2. Shredding : 

These plastic bottles are further processed into shredders. In this process shredders cut plastic bottles  into tiny membranous structures. Thus, shredders help recover waste during different industrial processes, such as moulding, trimming, and casting.

3. Belt conveyor:

These shredded PET are now processed through a belt conveyor. It helps to get rid of dusty unwanted particles. Belt conveyor process is important to obtain uniformity in the raw material characteristics.

4. Washing tank: 

Belt conveyors are connected to the washing tank where the PET materials get transferred. Here membranous PET is washed with caustic soda and NaOH resulting in the removal of any impurity. There are two types of washing involved in its manufacturing. It’s decided according to the desired grade.

• Hot washing of PET flakes:- PET flakes are washed in a washing drive at a temperature of 75°C to 80°C warm water with detergent and Caustic soda. Hot washed ones are green, opaque, brown, transparent.

• Cold washing of PET flakes:- Cold washed PET flakes is a resin PET Flake which has around 1% moisture. 

                                              Recycling process of PET flakes

Difference between PET flakes and PET chips

• PET flakes: They are pure materials made from recycled PET bottles by the process of cutting, crushing and cleaning. Other plastics like cap and label are separated before the treatment. 
• PET chips: These are produced from recycling different PET wastes like PET flakes, polyester yarn waste, thermofrost sheets etc. 

Market in India 

Even though the plastic waste in India is going overboard, there is very little raw material that reaches the recycling plant. If the recycling material is less, availability for PET flakes will also be considerably less. To cater with this less availability of raw materials for recycling the government of India raised a ban from the import of plastic waste for recycling which was imposed in .

In order to import plastic waste for recycling one must have a licence which is issued by the ministry of environment, forest and climate change(MoEFC).

Your guide to acquire licence of plastic waste import

• For the licence one must first apply to  the Director-General of Foreign Trade the consultation with the Department of Chemicals & Petrochemicals and the Ministry of Environment, Forest and Climate Change.
• The person applying must have a registered recycling unit under the state/central pollution control board.
• The person applying should also have a pollution clearance certificate where the recycling unit is located, from the state/central pollution control board along with a capacity assessment certificate.
• A certificate from the exporting factory.
• A declaration certificate from the customs authority is also required stating that the imported product does not contain any toxic substances.
• After this, the samples are analysed and tested for any contaminants.
• After the sample tests are approved, a licence is granted.

So Documents required are:-

• Import or export code issued by the Director general of foreign trade.
• GST certificate
• Pollution clearance certificate
• Certificate from export factory
• ID proof of the proprietor
• Address proof of the proprietor
• Invoice of the purchase.

Scope in India

It’s very much interesting to know that the PET recycling industry in India  had a turnover of around Rs. 3,500 crores in . In the turnover was Rs. crores plus. The Indian recycling industry consists of both unorganised and organised recyclers. The PET recycling rate in India is 90%.

There are value-added products made from Recycled PET(RPET). The Indian PET recycling industry is expected to grow exponentially in the coming years, as RPET will also be used in direct food contact applications in the near future.In Fact, in the next 4-5 years, the Indian PET recycling industry’s turnover will be Rs 13,500 crores plus!

Advantages

PET polymers are highly resistant to moisture. Also PET is chemical resistant to organic material and water. Thus, it has a very high strength to weight ratio. It is highly transparent and comes in a variety of shapes and colours which offer a good choice in producing attractive products.

They  help conserve raw materials in many different industries.

• Help us reduce the plastic waste in landfills by recycling them into flakes.
• Are of great use in the concrete industry.
• Are a great alternative in the fibre industry.
• Are used in the furniture industry.

Disadvantages

As we all know that PET is not a biodegradable plastic, which may be a disadvantage depending on the intended application. PET has lower heat resistance when compared to other polymers. Resins made from PET can oxidise, resulting in a degradation in the taste of food and beverages when the items have a long shelf life and are stored in PET packaging.

Find Plastic Waste Buyers and Sellers

Struggling with buying and selling plastic waste? Connect with plastic waste buyers and sellers here

Buyer Listings Seller Listings

Conclusion

Polyethylene terephthalate (PET) may seem useful but its impact on the environment is quite harmful, if left untreated. PET flakes are the byproducts of the recycled PET materials and can be further recycled to form PET chips. They are a multi-purpose commodity, which can be used in various industries like concrete, textiles, furniture etc. In order to Recycle PET waste and sell as flakes, one must have a valid licence issued by the MoEFC and CPCB.

FAQs on Pet Flakes

Ques 1:  What does PET stand for?

Answer:  PET stands for Polyethylene terephthalate.

Ques 2:  What are the uses of PET flakes?

Answer:  PET flakes are a multi-purpose commodity. It is used in various industries

          textiles, concrete, fibre, furniture etc.

Ques 2: Who issues the licence for plastic waste import?

Answer: The Ministry of Environment, Forestry and Climate Change along with the central/state pollution control board issues the licence.

Ques 3: When was the ban on plastic waste import relieved and why?

Answer: The ban on plastic waste import was lifted in , even though the use         of PET bottles is sky high in India, very few materials reach the recycling unit. To increase the availability of material for recycling the ban was lifted.

Ques 4: What is the process of recycling?

Answer: The process of recycling involves manual sorting, shredding, belt conveyor, washing tank.

Ques 5: What is the scope of PET flakes in India?

Answer: PET recycling rate in India is nearly about 90%. The turnover for PET recycling in India will be 13,500 Cr in the coming 4-5 years.

Ques 6: What is the difference between PET flakes and PET chips?

Answer: PET flakes are the pure commodity obtained from recycling PET waste whereas PET chips are obtained from recycled PET waste.

Ques 7: What are the types of PET flakes?

Answer: PET flakes are of various types like green, white, blue flakes and clear flakes.

Ques 8: What is a harmonised system code for PET?

Answer: The HS code for PET is .

Want more information on pet flakes hot washer? Feel free to contact us.