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Case Study

Coolside t/a Trtl + University of Strathclyde

To enable product lifecycle optimisation and carbon footprint reduction, supporting brand repositioning towards sustainability.

Coolside t/a Trtl

Coolside Limited T/A Trtl was founded in 2013 by Michael Corrigan and David Kellock shortly after graduating with degrees in Mechanical Engineering.

Trtl designs and sells a range of innovative travel pillows, flight socks and packing solutions to take the stress out of travel. Over 1 million units of the original flagship pillow design have been sold to date. All products have IP protections and the company holds a number of global patents for its innovations; which are almost exclusively sold online (both direct and via Amazon) with exports accounting for 96% of revenue. 

Trtl Logo

What was the need?

The Challenge

Sustainability is something customers are asking more about now that is more clear than ever that everything we do has an impact on our surroundings. A sustainability journey has to start somewhere and be part of any business aware of the times we lived in. Trtl has decided to start this journey by looking into material options to understand what is the most sustainable polymer choice to make the internal support of their neck pillow. The first challenge is to understand the material requirements in order to find and appropriate substitute, but also understanding what sustainable means in this context. Different circular business approaches and where this material is to fit defines the best approach from biopolymers and biodegradable materials to recycled blends that can be kept on the loop and recycled again.

The second challenge is to define the next opportunities to implement sustainability in the product as a whole, looking at it in a holistic manner, from the packaging to the type of fabric used, helping to define a roadmap in the decision making process of product development, from material selection to packaging strategies.

What did we do?

The Solution

In the endeavour of finding a more sustainable material for the internal support several polymers with good mechanical properties and from different sources have been characterized chemically, thermally, and mechanically. The idea is to prove that either a recycled blend or a biodegradable material can perform as well as the original material at giving neck support to those using the Trtl travel pillow, as well as developing a quality control process that helps to ensure the quality of the polymer sourced.

A Life Cycle Assessment has highlighted the need to look into different fabrics that can enhance the product sustainability, as well as the need to increase efficiency in the supply chain in order to reduce the carbon footprint of the product, highlighting the need of an holistic approach that can bring synergies together to reduce the overall impact of the product.

What changed?

The Impacts and Benefits

Impacts for the Company 

The benefit to the company is to broaden our understanding of the current material selection for our hero product and begin to understand how we may start to push the product in a more responsible direction. Focussing primarily on the plastic insert. We can begin to benchmark the current material selection against suitable and potentially more sustainable options. Secondly, we can begin to map out a process for making more conscious material choices across the current product and future products.

 

Impacts for the Academic Team

The complexity in the use of sustainable or recycled polymers in place of virgin polymers is poorly understood by the manufacturing industry and is particularly difficult for SMEs to adopt. The work completed within this KTP is supporting Trtl to understand the variation in properties across a number of sustainable polymers and how this will impact their product.

An important aspect that is often missed is the requirement to fully understand the supply chain limitations and the effect of raw material variation on the final materials properties. The characterisation of polymers from multiple sources has been evaluated within this KTP and has highlighted these variations. A testing procedure will be developed that can be completed at the Trtl offices to detect these supply chain variations before customer issues arise.

This represents a significant contribution to knowledge in the area of recycled polymer characterisation and dissemination through journal publication and webinar events will benefit those looking to switch from the use of virgin polymers to sustainable alternatives.

Additionally, the use of a holistic Life Cycle Assessment for small multi-material items has rarely been completed due to the complexity of the supply chain. Here an LCA was developed and allowed specific areas to be identified for Trtl to focus.

 

Impacts for the Knowledge Transfer Associate 

The KTP Associate benefits from:

The KTP Associate benefits from having a firsthand experience in a business environment, while translating knowledge held in more academic circles into the company, being able to see her impact in how the business develops this into actions. Having access to University of Strathclyde equipment and resources has been paramount in not only developing further the materials characterization and her knowledge about polymers, but also her connections with different actors in the polymers and circular economy business within Glasgow and Scotland.

By having a personal development budget, the KTP associate has also benefitted from specific training for professional development in the Life Cycle Assessment area, having the opportunity to attend the annual conference of the American Center for Life Cycle Assessment, where more insights on LCA were learned.

The Associate has had the opportunity to develop leadership, business, and project management skills through the Ashorne Hill training, where she has made professional connections among other KTP associates, enabling a positive networking experience.

The Impacts and Benefits

The People

Meet the Team

Beatriz Casares Fernandez

KTP Associate

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Dr Fiona Sillars

Knowledge Base Supervisor

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Jason Roebuck

Company Supervisor

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