Paper with dye was oxidized completely. And will result in more colors crystal nanoparticles of titanium dioxide coating on the surface of the paper. In order to print something like that. Scientists have this color coated paper with text or images on a break through. You may think of it as a stencil. Or mask Next, scientists are working on a mask UV. Light reaction to seasonal decline in the paper did not come to light. This will make it go away. "Just part of the oxidized only to be coated with a stencil mask on display are still in the dark. They are kind, so writing is completed by using the light. Deus all areas and processes to make it a blank paper. If you start using it again. Paper, it must return a solid color sheet again. Oxygen from the air to make things happen. Oxygen to remove an electron from an area without typing. If you do not want this to happen a second time after you type. The time to first print reading. Cellulose in the paper to slow the disappearance of the character. Cellulose is made of oxygen reacts with the dye is more difficult. Printing can persist for more than two days in another. People like to use the paper again. The heat will accelerate the time to remove them faster. At a certain temperature oxidation can be a solid color paper in five minutes or less.