People usually color their hair so they can improve their looks. By way of example, it is common to locate seniors coloring their head of hair black in order to look more youthful and better looking. The main chemical ingredients involved in the coloring process are baking soda and ammonia.
Peroxide (an oxidizing agent) usually is available in varying forms and strengths and aids in initiating the colour forming process. The chemical also aids in creating a long lasting color.
The more the amount of hydrogen peroxide in the dye, greater the amount of surfur taken from hair. Lack of surfur results in hardening of hair and lose of weight.
Ammonia for the hand provides for a catalyst if the permanent hair color combines with hydrogen peroxide. Just like all alkaline products, ammonia supports separating the cuticle and allows the hair color to go into the head of hair cortex.
Depending on the level of these chemicals inside the dye, hair dyes are sorted into three main categories: temporary, semi-permanent and permanent dyes.
Temporary hair dyes are often used when one is choosing special occasions like Halloween parties and other events. These dyes usually are seen in gels, sprays, foams, rinses and shampoos.
Typically, the pigment particles during these dyes are large and they can't enter the cuticle layer; the particles remain adherent to the hair shaft which is usually easily removed simply with a single shampooing.
Semi-permanent hair dyes coat the head of hair shaft plus alter the hair color temporarily to various shades of red, blue, and pink. Once you apply them, the dyes continue for 6-10 washes and you need not mix all of them with other components.
The pigment particles of the dyes usually are small in dimensions and they easily penetrate inside the hair cuticles.
Permanent hair dyes are widely-used when you need to eliminate the pigment of natural hair and change it to colors. The particles within the dye are often tiny in size thus they easily get into the cuticle and thus they bring about permanent alternation in hair color. This is actually the best dye when you wish to cover your grey hair.
These are the basic main dyes that can be used to create hair. You should note that even though dyes work well inside their working, they could result to harm to hair. The dyes can be allergic to your skin therefore making you really really irritating when you wear them.
For this reason you have to be careful and ensure that you just always test the merchandise before with them.
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