| 摘要 |
PURPOSE:To prevent the reproductive use of an optical disk with simple and small composition by holding a drug to chemically change the surface of the optical disk in a base material and contacting the drug on the surface of the disk. CONSTITUTION:A released paper 5 of a rejection processing material 10 is peeled off from a pressure sensitive adhesive double coated tape 2, a lug part 6 is held, and the material 10 is adhered to the surface of a draw type optical disk 20 as the object of the rejection. Next, a gel type liquid drug 4 exudes to the outside of a polyethylene sheet 3 by pressing the central part of a base material 1, the exuded liquid drug 4 contacts on the surface of the disk 20, dissolves the contacted surface, and makes the surface into a white turbid state. Consequently, data are never read even when the rejection processing drug 10 is peeled off. |
