The increasing demand for recyclates and the shortage of food-grade PET flakes pose challenges for batch quality and color consistency.

Repi offers various additives for recycling PET, which can be used, for example, to prevent the material from darkening.

16:9

Messe K-Kunststoffmesse

kunststoffe-international.com

kunststoffe.de

Recycling

Umweltmanagement

Kunststoff Werkstoffe

Polyethylenterephthalat

Thermoplaste

Kunststoff-Recycling

Kunststoffverarbeitung: Verfahren

Kunststoff-Aufbereitung

Kunststoff-Rezyklat

Additive

Compensating for Darkening in Recycled PET

The new plant will immediately produce an approximate 18,000 tons per year of recycled material from near-household collection.

At the new plant, the joint venture produces recycled PET granulate based on bottles from household waste for the production of new preforms and bottles.

Alpla Starts rPET Production in Romania

German specialist for chemical PET recycling expands capacity by up to 200 t of used plastic bottles per day.

From left to right: Jan van Kisfeld Managing Director), Dr. Vivek Tandon (Founder ) and Benjy Thompson (CEO of the Development Authority of Bulloch County).

Unternehmen

Revalyu Builds Major Facility in the USA

Each year, more than one million tons of plastic waste are generated in Kenya – so far unused. T3 wants to change this and invests in a bottle-to-bottle recycling plant from Starlinger.

Around 1,334,000 tons of plastic become waste in Kenya each year.

Kreislaufwirtschaft

Starlinger Installs First Plant in Kenya

At the beginning of March, Tomra opened a second testing center at its German head office to conduct thorough testing on a wider range of sorting processes.

Also at the beginning of March, Tomra opened a second testing center at its German head office to conduct thorough testing on a wider range of sorting processes.

Ehrhardt, Melanie

Testing out the Circular Economy

The quality of recyclates is seen as too low. Improvements are possible by using additives, as was shown by the exchanges during the Forum Plastic Recyclates.

Quite clearly, the central theme of this year’s conference  was additives for recycling materials.

Streifinger, Florian

Additives Are Decisive

The company will build a modern plant in Ballito in the South African province of KwaZulu Natal by autumn 2024.

From 2025, the internationally active packaging and recycling specialist will produce around 35,000 tonnes of rPET per year at its new recycling plant in South Africa.

Verpackungsmittel aus Kunststoffen

Kunststoffverarbeitung

Alpla Builds New Plant in South Africa

Duytan Plastic Recycling will increase its reprocessing capacity to 60,000 tons of plastics.

Duytan Plastic Recycling is the first PET bottle-to-bottle recycler in Vietnam.

Vietnamese Recycler Installs Third Starlinger Line

Christian Schiller’s goal is to turn the phrase “plastic waste is recyclable material” into reality. His tool of choice: digitalization.

Digitale Transformation

Wirtschaft

Innovationen und neue Technologie

Start up

Unternehmen und Unternehmer

“We See Our Work as Basic  Digitalization“

In general, recycled chocolate molds of PC do not meet the food contact requirements. A new recycling strategy is to provide a remedy.

Polycarbonate is frequently used for molds in chocolate production.

Polycarbonat

The Chocolate Side of Polycarbonate

Solvay and Hegen Partner to Bring the First Baby Bottle Made with Recycled Content to the Market.

In the future, Hegen will manufacture baby bottles from mass-balanced PPSU recyclate.

Messe Fakuma

Recyclates Now Also for Baby Bottles

Using the latest technological advances in flake sorting helps bridge the gap between supply and demand.

Mixed plastic waste: With about 180.5 million t polyolefins make up the lion‘s share of annual plastics production.

Quantum Leap in Recyclates Quality

With two Starlinger recoSTAR PET bottle-to-bottle recycling lines, Piedmont-based Dentis Recycling Italy S.r.l. expanded its product portfolio and now offers food-grade rPET pellets in addition to hot-washed PET bottle flakes

The Starlinger recoSTAR PET 330 HC iV+ bottle-to-bottle recycling lines produce bottle-grade rPET and have a production capacity of up to 3.3 tons per hour each.

Länderspecial Italien

Dentis Launches New Food-Grade rPET Brand

The availability of PET bottle flake outside the beverage sector is expected to decline continuously in the coming years. Tray-to-tray recycling can close this gap and succeeds particularly easily with a new extruder.

MRS extruder screw with multi-rotation section for efficient degassing and decontamination

Polyester

Blasfolienextrusion

Kunststoffverarbeitung: Maschinen und Komponenten

Flachfolien- und Plattenextrusion

Extrusion

Standardkunststoffe

Folien

Halbzeuge und Zwischenprodukte

Kunststoff-Halbzeuge

Unique PET Tray-to-Tray Recycling in a Single Extrusion Step

The Alpla Group is investing in an extrusion line for food-grade recycled PET (rPET) from used PET bottles at its Anagni site.15,000 tons of rPET are to be produced annually as a result.

The Alpla Group is investing in an extrusion system for recycled PET at its site in Anagni, Italy

20:7

Verpackungstechnik

Alpla Expediting a Bottle Cycle in Italy

RCS Plastics processes PET flakes into high-quality regranulate for preform and beverage bottle manufacturers. To ensure the required food quality of the recycled material, the company relies on Sikora technology for the quality control of the rPET flakes and pellets.

Impurities in the material can lead to considerable problems in the production of beverage bottles with rPET pellets. In addition to the appearance, the functionality can also be impaired, so that bottles can even burst if the material quality is insufficient. Therefore, the RCS Group uses Sikora‘s inspection and analysis system Purity Concept V in the laboratory to check the quality before further processing of the regranulate into preforms.

A material sample containing 80 g of rPET pellets is placed on the sample tray of the testing device. Within 30 seconds, the tray is automatically moved to the inspection area, scanned with the integrated camera and analyzed. A projector marks contaminated pellets in color directly on the sample tray. Simultaneously, the affected material is displayed on the monitor with an indication of the size of the contamination. This facilitates the assignment and removal of contaminated grains for further analysis.

„With the Purity Concept V, we can find contaminants in just a few seconds. This previously required up to 45 minutes of manual sorting,“ says Pascal Renner, Head of Quality Management at RCS. „Not only do we save time, but we also get clear, reproducible results. With the system, we detect black spots as small as 50 µm; the human eye can‘t keep up here.“

For quality control, the RCS Group has defined its own limits that the recycled material produced must not exceed. Immediately after sample analysis, it is apparent whether or not the batch meets the required criteria. The test results are documented and stored for traceability for 5 years. In addition to black spots, the recycling company also checks the material for butterfly grains. By evaluating the material with the Sikora concept, conclusions can be drawn about any mechanical problems that may have occurred during granulation that lead to the undesired deformation. Additionally, the system can also be used to analyze amorphous and crystalline pellets as well as test plates.

The Purity system impressed the RCS Group, as it reliably detects black spots and localizes them with precision. The company was also very satisfied with the consulting prior to the investment and the service of Sikora during commissioning. „We are pleased that we have gained a reliable partner with Sikora, with whom we will further advance the topic of recycling together,“ says Renner.

SIKORA AG  

https://www.sikora.net

Cedric Steeg, Employee in Quality Assurance, holds material sample in front of the Puritiy Concept V.

PET bottles in the cycle: the flakes from used deposit bottles are processed into high-quality regranulate, which is then used to produce new beverage bottles.

2023-08-30 - Sikora

PET Recycling: RCS Relies on Sikora Technology

Qualitätssicherung

issue 07/2023

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