This book 'has been written in accordance to the author's personal experience while he was working in big corporate companies as general manager of a dye house. Dyed yarn and fabrics were exported to various countries. Mainly the European buyers used to ask for various new certifications by which the production people were confused. The author has put all the doubts into this book which is handy for dyeing technicians. He introduces new eco-friendly processes and technology in a simplified manner.