PRODUCTION OF LAMINATED BOARD

摘要

PURPOSE:To obtain a laminated board having improved adhesive properties to a resin varnish, by subjecting sheets of glass cloth to plasma treatment before impregnating with the resin varnish to partially remove a binder and heating the sheets of glass cloth to burn up the residual binder. CONSTITUTION:Sheets of glass cloth are subjected to plasma treatment before impregnating with a resin varnish to partially remove a binder and the resultant sheets of glass cloth are then heated in an electric furnace (preferably at 300-450 deg.C) to burn up the residual binder. Thereby the aimed laminated board is obtained with excellent productivity.