| 摘要 |
PURPOSE:To obtain the titled material having improved coloring property by incorporating a lipophilic oligomer coupler which is synthesized by a polymerization reaction and has <=5,000 number average molecular weight, to the titled material. CONSTITUTION:The titled material contains the lipophilic oligomer coupler which is synthesized by the polymerization reaction and has <=5,000 number average molecular weight. The oligomer coupler having <=5,000 the number average molecular weight is formed by emulsifying and dispersing an org. solvent solution. of the oligomer coupler which is obtd. by polymerizing a monomer contg. a coupler monomer, in an aqueous solution of gelatin, or said oligomer coupler is obtd. by directly emulsion-polymerizing. Thus, the titled material having a coloring property and a high coloring property of the coupler, even in case of containing the high coupler unit, is obtd. |
