| 摘要 |
PURPOSE:To prevent a white omission with relatively small pressure by superposing an air-permeable flexible body on an elastic body and pressing an original and a heat-sensitive sheet against each other in contact. CONSTITUTION:The heat-sensitive sheet 7 formed by sticking a thermoplastic synthetic resin film and an ink penetration type porous base together and the original 5 where ink 6 sticks are superposed upon stage glass 6. Then, rear paper 4 as a reinforcing body for the heat-sensitive sheet 7, wool felt 3 which is 1mm. thick, and mono-cellular synthetic rubber sponge 2 are stacked thereupon, and pressure is between the glass stage 8 and a rigid plate 1 until the synthetic rubber sponge 2 becomes 6.5mm. thick; and they are irradiated with a flash from below the stage 8 to obtain a stencil for mimeograph printing, which is carried out. Thus, almost no white omission is eliminated at the black condensation part of the original. Further, the 25% compressive load of the sponge is 351- 630g/cm<2>. |
