At a glance
- Engineering plastics revolutionise the food industry
- Key polymers: PEEK, PTFE, PET, HDPE, PP
- Applications: food machinery, packaging, storage
Engineering plastics have transformed numerous industries, boasting robust properties and versatile applications. Their pivotal role in food-related sectors is underscored by compliance with rigorous health and safety standards. This article delves into the specific roles these materials play in food production, packaging, and machinery.
What are Engineering Plastics?
Engineering plastics are selected for their superior strength, durability, and resistance to heat, chemicals, and wear—outperforming standard plastics. Key polymers include polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), high-density polyethylene (HDPE), low-density polyethylene (LDPE), and polypropylene (PP).
Key Properties and Industry Applications
PEEK in Food Machinery Manufacturing
PEEK is celebrated for its exceptional strength and thermal stability. A perfect metal substitute in hygienic and corrosion-resistant food processing environments. It is used in:
Food processing components:
Gears, valves, and pumps made from PEEK enhance longevity and reliability as they do not rust like metal.
Packaging equipment:
Its ability to maintain integrity at high temperatures is essential for sealing processes in food packaging.
PTFE for Non-Stick Food Applications
With unparalleled non-stick properties and chemical inertness, PTFE is ideal for:
Cookware coatings:
Used in non-stick pans and baking trays, PTFE reduces food wastage and simplifies cleaning.
Seals and gaskets:
Vital in machinery processing acidic or basic foods, ensuring no contamination occurs.
PET for Disposable Food Containers
Lightweight and recyclable, PET is widely used in:
Bottling applications:
PET bottles provide safety and convenience and lower transportation costs for water, soft drinks, and juices.
Packaging solutions:
Its barrier properties extend the shelf life of perishables.
HDPE and LDPE in Food Storage
HDPE and LDPE are critical in:
Moisture resistance:
Both plastics prevent moisture ingress, which is crucial for freshness and extended shelf life.
Chemical resistance:
They ensure safety and purity by not reacting with foods.
PP for Versatile Food Packaging
Noted for its high melting point and chemical inertness, PP is used in:
Microwavable containers:
Safe for reheating food without degradation.
Medication bottles:
Ensures medications are not contaminated due to their chemical resistance.
Advantages over the traditional materials
Engineering plastics offer significant benefits over traditional materials like metals and glass, including weight reduction, lower maintenance costs due to non-corrosion, and easier handling.
Environmental Impact
Aligned with sustainability efforts, most engineering plastics are recyclable, reducing waste and energy consumption in new plastic production.
Innovative Uses in Bakery Equipment
The following usage reports are based on case studies.
Form & Frys, a Danish bakery equipment company, exemplifies innovative uses of engineering plastics. It is used in the manufacturing of components like rollers and transport trays. The use of a visually distinct acetal (POM-C) serves two key purposes:
Branding:
Its unique colour brands the equipment distinctively, enhancing company recognition.
Safety:
The bright colour allows for quick detection of any plastic fragments, which is crucial for maintaining product safety and preventing recalls.
Safety Innovations in Meat Processing
Günther Maschinenbau GmbH uses distinct acetal (POM-C) in its needle block systems for meat processing, enhancing meat flavour with saline injections. The blue colour facilitates operators' quick detection of debris. Furthermore, it complies with food safety regulations, reducing contamination risks.
Preventative Measures in Filling Machines
For filling machines using scrapers, a detectable acetal enhances safety. It does so by identifying metal detectors, thus reducing production downtime and waste.
Engineering plastics are indispensable in the food industry, providing safer, more efficient, and cost-effective solutions. Their ability to be moulded into complex shapes while maintaining precision and durability underlines their critical role in food processing environments.
Looking for reliable engineering plastics suppliers?
For further information on how our engineering plastics can enhance your food production processes, visit National Engineering Plastics. Our experts are ready to provide tailored solutions that meet the highest standards of safety and efficiency. Whether you are upgrading existing machinery or designing new equipment, we are here to help you.
Our service areas include:
- Shepparton
- Goulburn
- Murray Valley
- Southern NSW
