LAMINATED SHEET FOR PRESSURE-SENSITIVE PRINTING

摘要

PURPOSE:To perform printing of two or more colors by providing a pressure-sensitive printing system between a printing sheet and a cover sheet and further providing a pressure-sensitive printing shield film to a part of the printing sheet and providing a pressure-sensitive printing system forming a color different from that of the above- mentioned pressure-sensitive printing system between said film and the under surface of the cover sheet opposed to the film. CONSTITUTION:A coupler is applied to the entire upper surface of a printing sheet 2 and a rectangular cover sheet 1 whose entire under surface coated with a dye- containing microcapsule layer is laminated to said sheet 2 and the periphery thereof is bonded and fixed by an adhesive and a perforation 3 is provided inside the bonded and fixed part 4. Then, a composition prepared by removing pigment from printing ink and adding a glass powder to said ink in place of the pigment is applied to the predetermined part of the printing sheet 2 to partially cover the coupler layer. In the bonding and fixing of the printing sheet 2 and the cover sheet 1, an adhesive stronger than a pressure-sensitive adhesive and irreversible at room temp., for example, a heat-sensitive adhesive is desirably used from the aspect of secrecy. The perforation part of the cover sheet 1 is cut off by cutting the lower left corner of the perforation 3 and mat ink is applied to the outer surface 8 of about the upper half of the cover sheet 1 to make the same writable.