| 摘要 |
PROBLEM TO BE SOLVED: To provide a wet developer for circuit formation with which a fine circuit pattern with high accuracy of line width can be formed by an electrophotographic method. SOLUTION: The wet developer is prepared by using metal or metal oxide particles as the core C, coating the surface of the core C with a thermoplastic resin R by polymerization method to obtain core/shell composite particles A in a capsule state, and then dispersing the particles A in a solvent S.
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