1. Eco‐textile Finishing Laboratory, Department of Textile and Paper Engineering, Universitat Politècnica de Catalunya, Colom 1, 08222 Terrassa, Spain.
2. Department of Chemical Engineering, Universitat Politècnica de Catalunya, Colom 1, 08222 Terrassa, Spain
3. Department of Surfactant Technology, Instituto de Investigaciones Químicas y Ambientales de Barcelona, Consejo Superior de Investigaciones Científicas, Jordi Girona 18‐26, 08034 Barcelona, Spain