Understanding the Different Types of Plastics

At Sovereign, we take pride in guiding our customers toward the most sustainable packaging solutions, helping businesses make informed decisions to improve both their environmental impact and brand reputation. Here’s an overview of common plastics used in packaging and their recycling potential:

1. Polypropylene (PP)

Polypropylene (PP) is a versatile thermoplastic polymer, commonly used in packaging designed for microwave use. It’s typically opaque in appearance and has a high melting point, which makes it highly resistant to heat and moisture. This makes it ideal for holding hot liquids like soups, curries, or stews.

Recyclability: PP is recyclable, though it’s not as widely recycled as other plastics. Most local authorities in the UK accept it as part of standard recycling programs, but it’s essential to check with your local council.

2. Polyethylene Terephthalate (PET)

PET is the most commonly used thermoplastic polymer resin. It’s transparent, durable, and resistant to chemicals, making it a popular choice for cold liquids and cold foods.

Recyclability: PET is 100% recyclable and the most recycled plastic worldwide. Its ability to break down and be remoulded makes it a highly sustainable option, as it can be turned back into food-grade products. Almost all UK local authorities accept PET/ RPET for recycling, making it one of the best options for both sustainability and functionality.

3. Polylactic Acid (PLA)

PLA is a biodegradable thermoplastic made from renewable resources like corn starch or sugarcane, making it a more sustainable option than petroleum-based plastics. While it’s marketed as compostable, PLA is only commercially compostable and requires special facilities to break it down.

Recyclability: PLA can’t be easily composted at home and needs to go to a specialized recycling or composting facility. After 12 weeks, in the right conditions, it will break down in a commercial composting environment. It’s important to note that PLA is not home-compostable and should be disposed of through a food waste collection scheme.

4. Polystrene (PS)

Polystyrene (PS) is a transparent and synthetic thermoplastic commonly used for foam products, such as coffee cup lids and food containers. It softens when heated, making it easy to mold into various products.

Recyclability: Although PS is technically recyclable, it is the least recycled plastic due to its low value in recycling processes. As a result, many manufacturers are shifting away from PS to more sustainable options like PET or PP. PS can be recycled at specialized facilities, but it’s not widely accepted in curbside recycling programs.

At Sovereign, we believe that making the switch to more sustainable packaging should be seamless. We’re here to advise you on the best materials to improve your environmental credentials, help you navigate which plastics are most suitable for recycling, and support your business in transitioning to sustainable alternatives.

Looking to upgrade your packaging? Contact our team today for a free, no-obligation packaging review, and let us help you make the shift to more eco-friendly, sustainable packaging solutions that align with your business values and reduce your environmental footprint.

Categories : Packaging