The paper is manufactured at the company's Nymölla mill and it is Totally Chlorine Free (TCF), which involves using the most eco-friendly bleaching method available and not releasing chlorine into the water.

It is also EU Flower, Nordic Swan and FSC certified, and it is manufactured using renewable raw materials that are sourced locally to the mill in Sweden.

Kerstin Sekander, marketing manager at Multicopy, said: "The Swan currently has the strictest criteria of any labelling system. To become certified, you need to meet criteria throughout the lifecycle of the product.

"In the future, we are more likely to see further demands for products to declare their environmental impact. Labelling goods with well-established symbols is essential."