| 摘要 |
PURPOSE:To improve reliability including prevention of forgery, by providing a magnetic card, etc., with a visible and magnetically readable picture part. CONSTITUTION:At part of a base 1 of a card, etc., a colored layer is provided at need and on it, a part made of a magnetic recording material for forming a picture is further provided. This magnetic recording material is treated adequately by an engraving method, laser beam method, discharge working method, etc., to remove an unnecessary part, thereby obtaining a card which consists of the magnetic recording material 21 and the back of the colored layer 23, etc., and has a visible and magnetically readable picture part 2. |
