| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problems: conventional products using a photocatalyst paper such as a calendar and poster have a reduced white area originally having catalyst effect and have a short effectively usable time because the products are provided with a considerably large printed area and the conventional products are not applicable as a photocatalyst paper using product originally having semipermanent photocatalyst effect. Ž<P>SOLUTION: (1) A part printed in ink is reduced, and Braille printing as remained in a white background is performed. (2) In order to supplement an ornamental shortage according to the paragraph 1, a card such as a picture postcard is attached. (3) In stead of mere one sheet of paper, a sheet with a pocket can be used as a file, thereby giving convenience, so that a user can utilize it for a long time. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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