| abstract |
PROBLEM TO BE SOLVED: To provide a colloidal solution of a noble metal or copper which has a high chroma, has a sufficient coloring property and does not aggregate even when added to a paint or a resin, a method for producing the same, Provided are a paint composition and a resin molded product which are colored using a copper colloid solution. A precious metal or copper colloid solution comprising precious metal or copper colloid particles and a high molecular weight pigment dispersant. |