| abstract |
An image formed on the surface of a recording medium such as paper is easily and quickly erased without lowering the mechanical strength of the recording medium, and the used recording medium is reproduced at low cost, thereby reusing resources. Provide a method that can be used. An image erasing method for erasing an image formed by applying an ink containing a dye to a recording medium by exposing the image to an oxidizing gas, wherein the oxidizing gas is exposed. Prior to the image, at least one liquid selected from the group consisting of a solution containing an organic solvent, water and an oxidizing gas is attached to the image. [Selection figure] None |