| 摘要 |
PROBLEM TO BE SOLVED: To have an excellent initial coloring property at a low temperature period, and meet sufficiently other capabilities to be provided in a pressure- sensitive copying material that utilize a coloring reaction between an electron donative achromatic dye and an electron receptive developer. SOLUTION: The electron receptive developer consists of a uniform mixture of nucleus substitution multivalent metallic salt expressed by formula, 12-20C saturated or unsaturated aliphatic acid, and organic polymer compound having a further compatibility with these substances depending on the situation. In the formula, R1 , R2 , R3 and R4 can be the same or different, and they are respectively a hydrogen atom, a halogen atom, a 1-12C alkyl group, a cycloalkyl group, an alkoxylic group, a phenyl group capable of being necleus substituted, and an aralkyl group capable of being substituted, and (n) shows an integer of 1 or more, and M shows a multivalent metallic atom. |
