METHOD FOR SURFACE TREATMENT OF WOOD VENEER OR ITS REPLACEMENT AND DEVICE FOR CARRYING OUT THE PROCESS.

Abstract

Abstract An apparatus for surface treating wood veneers or substitute materials therefor comprises means (4-7) for coating one side of a film (1) of a polyester, polyvinyl chloride or a polyolefin with a thin layer of a liquid binder; at least one heated drying cylinder (9), over which the film (1) is passed with the binder-coated side facing outwardly from the cylinder (9); a plurality of nozzles (11) which extend transversely over the film and through which air is blown onto the layer of binder to heat the binder and/or evaporate at least the major part of any binder-dispersion agent or binder-solvent present; an endless conveyor belt (15) having an upper part extending over a fixedly mounted underplate (18), the conveyor belt being arranged to advance the wood veneer of substitute material therefor, optionally arranged on a plate or sheet (16) or a profiled element; and a laminating press roll (17) operating with said underplate (18) as a dolly means to form therebetween a press nip in which the film (1) is pressed onto the veneer or substitute material therefor with the binder-coated side of said film facing towards the veneer or substitute material. The invention also relates to a method of surface treating wood veneer or substitute material therefor, in which a film of the aforementioned kind is coated on one side thereof with a thin layer of liquid binder, whereafter the film is heated and air is blown onto the binder-treated side thereof to heat the binder and/or evaporate at least the major part of any binder-dispersion or binder-solvent present, whereafter the film is brought into contact with a wood veneer of substitute material therefor, optionally arranged on a sheet or profiled element, and pressed against the wood veneer or substitute material by means of one or more heated rollers.

Inventors

• 👤 Ake Nilsson
• 👤 Paul Karlsson
• 👤 Bo Stenqvist

Bibliographic Details