| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer coat forming method which enables the formation of a coat excellent in smoothness and clearness. SOLUTION: The multilayer coat forming method consists of coating a first coloring paint (X), a second aqueous coloring paint (Y) and a clear paint (Z) in order on a material to be coated and making a first formed coloring coat, a second formed coloring coat, and the clear paint (Z) baking cure at the same time. The second aqueous coloring paint (Y) is coated when a gel fraction of the first coloring coat is in the range of 5 mass% or more and 40 mass% or less, and also the first coloring paint (X) has an OH-group containing polyester resin (A) and a polyisocyanate compound (B), wherein the polyester resin can be obtained by the reaction of an acidic component (a1) and an alcohol component (a2), also a content of a fatty-group polybasic acid (a1-1) in the acidic component (a1) is in the range of 20-70 mol% based on the total amount of the acidic component (a1) and also the acid value is 15 mgKOH/g or less. COPYRIGHT: (C)2009,JPO&INPIT |
