JPS55139880A - Production of undulated decorative plate - Google Patents

Abstract

PURPOSE: To obtain the decorative plate which is rich in three-dimensional appearance and has sharp discriminations of undulated parts by coating paint on the surface of a plate material having undulated patterns and drying only the paint of the convex part by a convex part dryer then depositing sand of large particles only in the recesses and coating paint over the entire surface thereafter depositing sand of small particles.

CONSTITUTION: The paint 3 of the 1st layer is coated by a curtain flow coater 17 on the surface of a plate material 2, such as of asbestos slate or plaster, having undulated patterns 1. This is fed into a convex part dryer, where a metal foil 4 let off from a roll 11 is sandwiched by iron plates 12 with heaters 5 and is heated and only the paint 13 of the convex parts 6 is dried by the heat of the lower part of the foil. When the plate material 2 contacts a switch 13, the iron plates 12 opens and the foil of a fixed length is wound to the roll 15. Next, sand 7 of large particles is deposited only in the recess 8 by the 1st sand sprayer 16, after which the paint 10 of the 2nd layer is coated over the entire surface of the patterns. Sand 9 of small particles is sprayed and deposited thereon by the 2nd sand sprayer 19 and the paint 21 of the 3rd layer is coated.

COPYRIGHT: (C)1980,JPO&Japio