Hi I am training in hairdressing and my mind is always ticking over with questions even when I'm trying to sleep which I cannot always find the answers to in text books or on the net. And I am to impatient to wait until I speak to my tutor!
My question is a mixing ratio question. If I mix say 60 ml colour with 120 ml of 20 vol/6% developer does that then double the strength of the developer to 40 vol in this mix or is it still 20 vol. if so then can someone explain the 'science ' behind it and what is the reason for this Mixing ratio?
Thank you
My question is a mixing ratio question. If I mix say 60 ml colour with 120 ml of 20 vol/6% developer does that then double the strength of the developer to 40 vol in this mix or is it still 20 vol. if so then can someone explain the 'science ' behind it and what is the reason for this Mixing ratio?
Thank you