Firstly I will like to thank you for this brilliant question. The answer to this question is YES, there is always a quantity of dyes and chemical to be used per yards of fabrics, depending the quality of the dyes, chemicals, and the fabric itself. i.e you make you the get the best drum of dyes (raw) undiluted dye-stuff, and very chemicals, and 💯 percentage cotton of fabrics. Then you can uses ratio 6:5:4. Dye-stuff 6 table spoon full Hydro-sulphate 5 table spoon full. Caustic soda 4:table spoon full To be used for 5yards of 💯 Cotton fabrics.