Disperse Violet 1

Disperse dyes get their names from the fact that they are used in dye baths as colloidal (particle) dispersions. Disperse Violet 1 occurs as either dark violet crystals or as a black powder. When used in semi-permanent hair coloring systems, color is deposited or adheres to the hair shaft. In permanent hair coloring systems, color is produced inside the hair fiberA slender, threadlike structure that forms animal or plant tissue.

Hair dyeing formulations belong to three categories – temporary, semi-permanent and permanent coloring of hair. The permanent hair dyeing formulations are often referred to as oxidative hair dyes which are generally marketed as two-component products. One component contains the compounds (precursors) that become the colorants and the other component is a stabilized solution of hydrogen peroxide. The two components are mixed immediately prior to use. The precursors and peroxide diffuse into the hair shaft, where color formation takes place after the ingredients combine to produce the coloring mixture. The precursors are oxidized by the hydrogen peroxide to form the colorantIngredients that impart color to cosmetic products. In the United States, the FDA regulates which colorants may be used in cosmetics. molecules. These molecules are too large to escape from the hair structure. The hydrogen peroxide in the oxidative hair dye product also serves as bleaching agent for the natural pigment of the hair. The color that is formed depends on the precursors and direct dyes present in the dyeing solution, pHA measurement of the acidity or basicity of a substance. pH is the negative logarithm (base 10) of the concentration of hydrogen ions in solution. Water has a concentration of hydrogen ions of 1.0 x 10-7, and thus has a pH of 7. A pH of 7 is considered neutral, a pH lower than 7 is considered acidic, and a pH higher than 7 is considered basic. of the dyeing solution and the time of contact of the dyeing solution with the hair.