Patent ID: 9539183
Date: 2017-01-10
CPC Classifications: A45D,A61K,A61Q

Claim:
1. A hair dyeing method, comprising steps of: (a) applying a first dye to a plurality of hairs; (b) dividing the plurality of hairs, to which the first dye is applied, into specific units of hair; (c) marking a section in the specific unit of hair which will not be dyed; (d) tying the marked section in the specific unit of hair; (e) injecting water into a dyeing apparatus which is to be used in applying a second dye; (f) heating the water which is injected into the dyeing apparatus; (g) injecting a chemical and a dye into the water which is injected into the dyeing apparatus and heated; (h) introducing the specific unit of hair to be mixed with the water which is injected into the dyeing apparatus; (i) gradually raising a temperature of the water which is injected into the dyeing apparatus; (j) when the temperature of the water which is injected into the dyeing apparatus rises to a certain temperature, maintaining the temperature of the water for a certain duration of time; (k) verifying the color of the specific unit of hair, and repeating the step (g) when the color of the specific unit of hair is not a designated color; and (l) when the color of the specific unit of hair is the designated color, stopping the heating of the water which is injected into the dyeing apparatus, and draining the water from the dyeing apparatus.