| 摘要 |
A method of forming multi-layer paint films comprises forming a first base paint film, wherein an aqueous first base paint (A) is coated over an object; forming a second base paint film wherein a second aqueous base paint (B) is coated over the uncured first base paint film; forming a clear paint film wherein a clear paint (C) is coated over the uncured second based paint film; and heating and curing the first base paint film, the second base paint film, and the clear paint film at the same time and in which the aqueous first base paint (A) includes as the base resin a water-soluble or water-dispersible acrylic resin (A1) and one or more type of water-soluble or water-dispersible resin (A2), selected from among the polyester resins, polyurethane resins and acrylic-urethane resins, both (A1) and (A2) having a weight average molecular weight of from 10,000 to 100,000. |
