Process to reduce roughness of wooden veneer surface - involves hot metal rollers passing over sheet of veneer at least twice in quick succession and then through opposed rotating rollers with different surface roughnesses

摘要

The flat wooden veneer surface is subjected to a defined pressure as a hot metal roller passes over its surface at least twice in quick succession. Sheets of dried veneer are rolled between two opposing rollers rotating at different speeds. The opposing rollers have different degrees of surface roughness. The pressure applied is at least 10<4> N/m, ideally 10<5> N/m and in the direction of wood grain and across the wood grain. Sheets are passed through the rollers in a continual process at a speed of 12 - 20 m/min.The number of pressure cycles is at least as many as the relative speed in M/min between veneer surface and the line of rolling action. The relative speed is 6 -12 m/min. USE/ADVANTAGE - For furniture. Veneers so treated only need a single coat of varnish without any sacrifice in quality. Further, glue, paint and varnish spread uniformly and do not penetrate the veneer when pressure is applied.