| 摘要 |
PURPOSE:To easily and quickly measure pressure or pressure distribution without using a measuring equipment by constituting a pressure measuring sheet by mixing plural kinds of microcapsules different in intensity and tone of coloring. CONSTITUTION:A microcapsule layer 13 is applied to the surface of a sheet base 12. The microcapsule layer 13 is formed by mixing a capsule 13Y of yellow, a capsule 13M of magenta, and a capsule 13C of cyanogen. When an external force is added, sealed coloring bodies 14Y, 14M, 14C flows to the outside of the capsules 13Y, 13M, 13C. Since the diameters of the capsules 13Y, 13M, 13C are minimized in the order of yellow, magenta, and cyanogen, their intensities are increased in this order. When an image receiving paper which is a general paper is put on the microcapsule layer 13 of such a pressure measuring sheet, and a pressure is added in a position to be measured, the coloring of the image formed on the image receiving paper is changed depending on the magnitude of the pressure. |
