Shining coating film formation method and coated article
First Claim
1. A method for forming a shining coating film, comprising the steps of:
- coating a shining material-containing solvent type first base coat coating onto a base material to form a first base coating film;
coating a shining material-containing solvent type second base coat coating onto the first base coating film to form a second base coating film;
coating a top clear coating onto the second base coating film to form a clear coating film; and
then baking a formed multilayered coating film at the same time;
wherein;
the first base coat coating contains a polyester-polycarboxylic acid in a ratio of 50 to 95 mass % in terms of nonvolatile concentration based on the total resin nonvolatile concentration, the first base coat coating has a nonvolatile concentration of 50 to 65 mass % when coated, and a coating such that the first base coating film will have a nonvolatile concentration of not less than 75 mass % when the second base coat coating is coated is used as the first base coat coating; and
the second base coat coating contains a non-aqueous dispersion resin in a ratio of 5 to 80 mass % in terms of nonvolatile concentration based on the total resin nonvolatile concentration, the second base coat coating has a nonvolatile concentration of 25 to 35 mass % when coated, and a coating such that the second base coating film will have a nonvolatile concentration of 50 to 60 mass % when the second base coating film is formed is used as the second base coat coating.
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Accused Products
Abstract
There are provided: a method for forming a shining coating film which can form a coating film extremely excellent in a leveling property and a brightness with good workability and can also realize the reduction of environmental burden; and a coated article excellent in a design property obtained by this method. In a method comprising the steps of sequentially coating a shining material-containing solvent type first base coat coating, a shining material-containing solvent type second base coat coating and a top clear coating onto a base material and baking a formed multilayered coating film at the same time, an improvement is made so that the resin composition and coating nonvolatile concentration of the first and second base coat coatings and the amount of nonvolatiles in the first and second base coating films will have specific conditions.
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Citations
8 Claims
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1. A method for forming a shining coating film, comprising the steps of:
- coating a shining material-containing solvent type first base coat coating onto a base material to form a first base coating film;
coating a shining material-containing solvent type second base coat coating onto the first base coating film to form a second base coating film;
coating a top clear coating onto the second base coating film to form a clear coating film; and
then baking a formed multilayered coating film at the same time;wherein; the first base coat coating contains a polyester-polycarboxylic acid in a ratio of 50 to 95 mass % in terms of nonvolatile concentration based on the total resin nonvolatile concentration, the first base coat coating has a nonvolatile concentration of 50 to 65 mass % when coated, and a coating such that the first base coating film will have a nonvolatile concentration of not less than 75 mass % when the second base coat coating is coated is used as the first base coat coating; and the second base coat coating contains a non-aqueous dispersion resin in a ratio of 5 to 80 mass % in terms of nonvolatile concentration based on the total resin nonvolatile concentration, the second base coat coating has a nonvolatile concentration of 25 to 35 mass % when coated, and a coating such that the second base coating film will have a nonvolatile concentration of 50 to 60 mass % when the second base coating film is formed is used as the second base coat coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- coating a shining material-containing solvent type first base coat coating onto a base material to form a first base coating film;
Specification