| 摘要 |
PURPOSE:To obtain indelible recording on the rear of a transfer sheet by providing an ink layer containing a microcapsule including oil and other chromogenic substance forming a color upon the reaction with the chromogenic substance of the transfer sheet on a support and transferring a part of the ink layer to the rear of the transfer sheet. CONSTITUTION:When writing is applied to the surface of a transfer sheet 1 by a ball-point pen 7, the chromogenic substance in a microcapsule is transferred to an ink layer 3 containing other chromogenic substance from the transfer sheet 1 by the writing pressure of said pen 7 to obtain copy on the ink layer 3. A part of the ink layer 3 is released by the writing pressure to be transferred to the rear of the counter transfer sheet 1. At this time, since the oil included in the microcapsule in the ink layer 3 is also transferred in large quantities to support the dissolution of the chromogenic substances, the indelible recording 8 formed on the rear of the transfer sheet 1 becomes extremely sharp. |
