| 摘要 |
PURPOSE:To obtain a desensitizer capable of providing excellent desensitizing effect for a pressure-sensitive copying paper and excellent in bleeding resistance and printability from an alkyleneoxide addition product of a rosin alcohol and an alkyleneoxide addition product of a rosin amine. CONSTITUTION:An alkylene oxide addition product (A) of a rosin alcohol, in which 1-100mol alkylene oxide is added to 1mole hydroxyl group, and an alkylene oxide addition product (B) of a rosin amine, in which 1-100mol alkylene oxide is added to 1mole hydroxyl group, are mixed together in a proportion of 1:10-10:1 by weight to obtain a desensitizer. The desensitizer is coated on the color blank part for any one of the faces coated with an electron-donative or receptive substance of a pressure-sensitive copying paper for suppressing coloration. |
