| 摘要 |
PROBLEM TO BE SOLVED: To provide a desensitizing ink for pressure sensitive copying paper excellent in desensitizing performance and balance in printing work properties during wet offset printing. SOLUTION: In the desensitizing ink comprising at least a desensitizer and a resin, the desensitizer is a compound prepared by adding butylene oxide to N-aminoethyl piperazine, its amine value is 195-220 mg KOH/g, and the softening point of the resin is 80-120 deg.C. |
