| 摘要 |
PURPOSE:To obtain an ink holder effectively prevented from suffering the lowering of the surface tension of ink and the plugging of nozzle even when not washed by using a specified organopolysiloxane as a foam stabilizer which is a raw material for the polyurethane foam constituting the holder. CONSTITUTION:This holder is one made of a polyurethane foam obtained by expansion-molding a mixture mainly consisting of a polyol, an organic diisocyanate, a blowing agent and a foam stabilizer, wherein an organopolysiloxane having at least one group selected from among an active hydrogen group, an epoxy group and an isocyanate group in the molecule is used as the above foam stabilizer. |
