A MELAMINE SHEET OF LAMINATED PLYWOOD TYPE FLOORBOARD FOR THE KOREAN UNDER-FLOOR HEATING SYSTEM

摘要

A sheet for a transparent protective layer, a sheet for a core layer, a sheet for a shape layer and a sheet for a balance layer are separately prepared by impregnating a thermosetting resin on a paper, 5 to 7 layers of the single-ply sheets were press-pressed in a direction perpendicular to the grain plane by means of phenol or melamine adhesive so as to produce a water-resistant plywood sheet. Each of the sheets and the water-resistant plywood sheet were laminated from below to a sheet for balance layer, And a sheet for a transparent protective layer are laminated in this order, and the laminate is integrally pressed by heating under pressure with a hot press, whereby the surface properties and dimensional stability of the laminate are excellent, the laminate is excellent in adhesion to the floor, Process and low cost unit flooring.