| 摘要 |
PURPOSE:To obtain a set of duplicate slips which is made up of a plurality of slips and makes it possible to discriminate at a glance that entry items are entered after a receipt is cut off. CONSTITUTION:A set of duplicate slips is made up of a money collector's memo slip 1, a receipt 2 and a company's memo slip 3, and a coloring agent layer 5 is provided on the rear of the collector's memo slip 1, a self-coloring layer 8 on the surface of the receipt 2, a coloring agent layer 6 coloring differently from the coloring agent 5 in contact with a color developing agent on the rear of the receipt 2 and a color developing agent layer 7 on the surface of the company's memo slip 3. When the receipt 2 is cut off from this set of duplicate slips and entry items are entered in the remaining set of duplicate slips, the color of the entry items duplicated on the surface of the company's memo slip 3 is different from the color obtained when the set is used normally. |
