Despite fluctuations in the quality of input materials, end products are expected to meet high quality standards, especially in the food sector. The wide range of products available on the fast-paced global PET packaging market calls for a high degree of versatility on the part of plastics converters. For this reason, it is necessary to have lines which have a short process chain capable of producing good quality and which can respond rapidly to different requirements. 

Producing Sheet from Different  Input Materials 

Polyethylen

Polyethylenterephthalat

Extrusions-Zubehör

Blasfolienextrusion

Flachfolien- und Plattenextrusion

Kunststoff-Recycling

À la Carte Input 

Two new models of the Eco product family from Ettlinger take into account the need for systems with a higher product throughput.

The new ECO 500 high performance melt filter achieves throughputs of up to 4000 kg/h

16:9

Schmelzefilter

Kunststoffverarbeitung: Maschinen und Komponenten

Kunststoff-Aufbereitung

Kunststoff Werkstoffe

Thermoplaste

Kunststoffverarbeitung: Verfahren

High Performance Melt Filters for Higher Throughputs

A consortium of well-known beverage brand owners has produced sample bottles from food-grade rPET for the first time using a breakthrough enzymatic recycling process.

Kreislaufwirtschaft

Global Brands Unveil World’s First Sample PET Bottles

Together with the University of Applied Sciences Magdeburg-Stendal, Germany, MultiPet GmbH is researching into injection-moldable blends that can be used to produce high-quality multi structured injection-molded parts from mixed PET.

Colorful mixture: the recycling of mixed fractions from bottles, blisters and trays remains a major challenge

Production of Injection-Moldable PET-Blends from Mixed Plastic Fractions

rPET Blends for High Standards

Faerch and Erema realize closed loop for PET food packaging.

Verpackungsmittel aus Kunststoffen

Kunststoffverarbeitung

Verpackungsmaterial

Logistik

Recycling

Umweltmanagement

Verpackungstechnik

Closed the Loop for PET Trays

Strategic partnership delivers best practice example of a closed recycling loop for PET-based multilayer.

Best practice example of a closed recycling loop for PET-based multilayer.

Kunststoffe

Photonik

Optik

Technische Kunststoffe

Closed Recycling Loop for PET-Based Multilayer

In order to avoid bubble ruptures during the production of blown film, the velocity of the cooling air is often reduced. The use of air guiding systems (AGS) can prevent such bubble instability. A novel AGS was developed at IKV in Aachen, Germany, using iris diaphragms in order to increase the cooling efficiency of blown film extrusion and thus improve the productivity of an existing plant

Flexible air guiding system in blown film allows higher mass throughputs and greater process stability

Increase in Mass Throughput and Improved Mechanical Product Properties

Extrusion

Nachhaltigkeit

Kühlanlagen

Konturnahe Kühlung

Energieeffizienz

Extrusionsanlagen

Flexible Guiding Systems  for Cooling Air

New polymer composites for the production of multi-layer small tubes are being developed to give products specific functions. With suitable co-extrusion dies and a thermal barrier option, even complex layer composites with melt temperature differences of more than 50 °C can be processed reliably and in high quality.

CV-T 5-layer co-extrusion die in pilot plant operation: tubes with small cross-sections that fulfill a multitude of demands can be produced by  co-extrusion

Combining Polymers with Very Different Processing Temperatures

Temperiergeräte

Gießanlagen

Temperiertechnik

Baugewerbe (Hoch- und Tiefbau)

Medizintechnik (KU)

Bautechnik, Sanitär

Rohr- und Profilextrusion

Extrusionswerkzeuge

Werkzeuge für die Kunststoffverarbeitung

Extruder-Folgeeinrichtungen

Automotive

Fahrzeugbau

Co-Extrusion with Thermal Control

In the area of pipe and profile extrusion, the focus remains on increasing efficiency. In addition to energy-saving systems, the focus on efficiency increasingly includes flexibilization of plants and processes, as well as reproducibility of quality in production.

Optimization of Components and Expansion of Plant Control Systems Offer Potential  for Improvement

Efficiency Remains the Order of the Day

Coperion is supplying an extrusion system to Ghent University in Belgium for comprehensive research and development tasks in chemical recycling of mixed plastic waste. The system will also be available to Coperion´s customers for testing.

Due to its intensive dispersion and devolatilization output, Coperion’s ZSK twin screw extruder is extremely well suited for energy-efficient chemical recycling of mixed plastic waste

Coperion Supplies Twin Screw Extruder to Ghent University

Pure Loop, an Erema Group company, will present its Isec evo series at Fakuma. This shredder-extruder combination is rapidly becoming established as an efficient recycling solution in injection molding production thanks to its high flexibility in processing different materials, simple operation and low maintenance requirements.

The Isec evo shredder-extruder combination is considered an efficient material all-rounder

Messe Fakuma

kunststoffe-international.com

A Shredder-Extruder Combination as a Recycling Solution in Injection Molding Production

Both the quantity of recycled plastics waste and of processed recyclates is continually increasing. However, there are still difficulties with the quality of the recycled plastics, which are impeding replacement of virgin material. In recent years, machinery manufacturers and plastics producers have introduced various further developments that improve the properties of recyclates as well as eliminate unpleasant odors and contaminants.

Plastics recycling is a laborious process. For the recycled material to have the necessary quality, it must first be sorted into the different plastics

Overcoming Difficulties in Plastics Recycling

Streifinger, Florian

Extruder

Trockner

Waschen und Entfetten

Trockner, Granulat-

Sortierer

Additive

Inspektion, Analyse und Sortierung von Rohmaterial

QualitÃ¤tssicherung

QualitÃ¤tssicherung Kunststoff

The Long Road to a Circular Economy

Dow, HP, Reifenhäuser, Cadel Deinking and Karlville present a feasibility study for recycling digitally printed polyethylene barrier packaging into new high-quality PE bags.

Key industry players combine forces to recycle PE-based barrier pouch into new high-quality PE pouch suitable for repeat recycling

Technik Trend

Important Step towards Pouch-to-Pouch Recycling

The growing demand for plastic recycling directly reflects the machine sales for Polystar. By the end of April 2022, a total of over 110 recycling machines will have been shipped within 12 months – twice as many compared to last year.

The new factory in Sinji industrial park is the third Polystar manufacturing facility in Taiwan.

Sales Doubled for Polystar in 2021

Conventional PET recycling lines are based on single-screw extruders with maximum output rates of two and a half tons per hour. Since 2004, KraussMaffei has been researching a process to significantly increase these quantities with the help of glycol and the use of a twin-screw extruder. Given the current high demand for rPET materials, this technology is becoming increasingly important.

Glycolic Depolymerization versus Mechanical Bottle-to-Bottle Recycling

Glycol Turns the Extruder into a Turbo

Erema enters a new dimension with large-scale recycling plants. Up to 40,000 tonnes per year of rPET can now be produced. The first plant of this size has been shipped to Brazil.

As the demand for recycled plastics grows, so does the size of the machines. This applies to the processing of polyolefins as well as to PET recycling. With its unique dimensions and production capacity, this new size of plant features a screw diameter of 280 mm, implemented for the first time in a Vacurema Basic 2628 T large-scale project for producing rPET pellets. Erema has just shipped the plant to a customer in Brazil.

Up to 40,000 tonnes per year of rPET meeting the highest quality standards can now be produced. „For this purpose, we installed a screw with a length of ten meters, a diameter of 280 millimetres and a weight of 3.5 tonnes, which is the largest ever used in one of our recycling machines,“ explains Managing Director Michael Heitzinger. The screw was manufactured by 3S, a subsidiary of Erema GmbH. No less impressive is the reactor of this recycling system, which, with a height of around 10 metres, is also unique and almost reaches the roof of the new production hall. 500 tonnes of input material were recycled during the test phase, which was subject to strict quality control. „The entire project was a great team effort,“ Heitzinger said, thanking everyone involved.

Extrusion Lines are Getting Bigger in Fast Speed

Just four years ago, the largest extrusion line supplied by Erema was designed for a throughput of 15,000 tonnes per year. This size of plant was ordered by customers once or twice a year. In the meantime, machines like this leave the production site in Ansfelden every month. As early as 2020, Erema proved to be a pioneer and reliable partner for implementing unique large-scale projects. That was when the food and beverage packaging manufacturer Envases Universales Mexico commissioned two Vacurema Basic 2625 T machines, each with a screw diameter of 250 mm and a capacity of 30,000 tonnes per year.

EREMA Engineering Recycling Maschinen und Anlagen GmbH 

https://www.erema.at

The reactor of the Vacurema T large-scale plant almost reaches the roof of the new Erema production hall, which was commissioned in 2021.

2022-01-04 Erema

issue 04/2022

issue 03/2022

issue 02/2022

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