染发新技术

　　The Daily Mail: Dying your hair can be time consuming and expensive, not to mention damaging. So most women would welcome a new invention that could change their hair colour at home at the touch of a button.

　　Scientists have taken the first step to making this possible and believe that a device similar in appearance to hair straighteners or flat irons, could be used to colour and even press a pattern into your hair in the future.