| 摘要 |
PROBLEM TO BE SOLVED: To enhance productivity and quality by dry-comminuting specified colored chips and carrying out further wet comminution in a nonaqueous solvent. SOLUTION: A colorant, a resin and ionomer are heated and kneaded at a temperature above the softening point of the resin, the kneaded material is coarsely comminuted and the resulting colored chips are dry-comminuted and further wet-comminuted in a nonaqueous solvent. A pigment effective in prolonging the life of an interim transfer body as well as an ordinarily used pigment or dye may be used as the colorant. An acrylic resin such as a polyacrylic ester, a polyethylene type resin such as polyethylene or a mixture of such resins may be used as the resin. The ionomer is obtained, e.g. by neutralizing an ethylene-acrylic acid copolymer with a metal. A hummer mill, a jet mill or the like is used for the dry comminution. A media crusher such as an attriter, a sand mill or a mill can be used for the wet comminution without causing any trouble.
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