And they will paint again. 2.The color will correct it. 3 color changes. They paint. Different colors in terms of gender and type and nature and other characteristics demand a particular type of de-coloring, for example, acid colors in alkaline baths and green, ultraviolet, blue can be colored by oxidation method. Decoloring is performed in various ways, including three of the following: A- in baths prepared by mixing materials (oxygenation) that decolor with potassium or oxygen water. P-Section and the use of sodium hydrocyclitis, or phosphorous compounds that I produced. A lot of color materials are introduced in the market, with one or more colors having better effects.