Any hair coloring is a responsible and complex procedure, which can be trusted only real professionals. Staining "at home" often leads to unpleasant consequences: it is an undesirable color quality, and seriously damaged hair.
If you look, the hair dyeing process is quite simple. The first time the ink composition is applied uniformly over the entire length of hair, and again in the first regrowth and then, after a certain period of time, for the rest of their length.
The thoroughness of this procedure depends color fastness. Hair coloring - is a set of chemical reactions that are important to observe. These are strictly calculated time and exposure of the dye.
Considered important and the use of the dye mixture immediately after mixing the dye and oxidant and technological end of the staining procedure - all cosmetic base to remove completely from the dyed hair. The entire structure of the hair should be open to follow: consolidation and stabilization of color.
From conservation color effect, there are several types of it. Type of preserving the short-term effect of coloring up to the first shampooing - this is a temporary "volatile" staining. For him, using dyes, hair enveloping the outside and do not penetrate their cuticles.
Direct staining staining effect maintains an extended period of time, because the dye flushing occurs gradually. During dyeing dye coats the hair from root to tip, closing the scales.
Permanent staining keeps for about a month. Dyes penetrate into the cortex of the hair, painting their cuticle.
Permanent staining can keep a permanent coloring effect a longer period of time as compared with previous methods. Colorant in this case penetrates the cortex of the hair due to hydrogen peroxide.