| abstract |
(57) [Problem] To provide a production apparatus and a production method capable of efficiently producing an acrylic artificial marble plate having a good matte mat tone and excellent in design. SOLUTION: A formed plate taken out of an endless belt 1, 1 'is subjected to a heat treatment for imparting a matte mat tone in a third heating zone 14, 14'. The temperature of the heat treatment is 120 to 220 ° C., and the treatment time is 1 to 30 minutes. |