1. Xennia Technology Ltd, Monroe House, Works Road, Letchworth SG6 1LN, UK
2. School of Textiles & Design, Heriot‐Watt University, Scottish Borders Campus, Netherdale, Galashiels, Scotland TD1 3HF, UK
3. L’Oréal Advanced Research, Bât. 46, 46 rue Isaac Newton, 93601, Aulnay‐sous‐Bois, France