Powder based balancing layer
AssigneeVälinge Innovation AB
InventorsHans Persson, Niclas Hakansson, Jan Jacobsson
Life of this patent
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Abstract
A method of manufacturing a building panel with a decorative surface layer, a core and a balancing and/or protective layer, wherein the method includes applying a first layer of a first powder based mix, including wood fibres and a thermosetting binder, on a core; applying a liquid substance on the first powder based mix; drying the first powder based mix; turning the core with the dried first powder based mix such that the first powder based mix points downwards; applying a second layer on the upper part of the core; and curing the first and second layers by providing heat and pressure, wherein the first layer forms the balancing and/or protective layer and the second layer forms the decorative surface layer in the building panel.
Claims27
A method of manufacturing a building panel with a decorative surface layer, a core and a balancing and/or protective layer, wherein the method comprises the steps of:
- providing a core
- applying a first layer of a first powder based mix, comprising wood fibres and a thermosetting binder, on a first surface of the core;
- applying a liquid substance on the first powder based mix;
- applying a second layer on a second surface of the core;
- and
- curing the first and second layers by providing heat and pressure, wherein the first layer forms the balancing and/or protective layer and the second layer forms the decorative surface layer in the building panel,
- wherein the first layer comprises wood fibres with random fibre direction such that the first layer has similar shrinkage properties as the decorative surface layer.
A method of manufacturing a building panel with a decorative surface layer, a core and a balancing and/or protective layer, wherein the method comprises the steps of:
- applying a first layer of a first powder based mix, comprising wood fibres and a thermosetting binder, on a carrier;
- applying a liquid substance on the first powder based mix;
- placing a lower surface of the core on the first powder based mix after the liquid substance has been applied on the first powder based mix;
- applying a second layer on an upper surface of the core;
- and
- curing the first and second layers by providing heat and pressure, wherein the first layer forms the balancing and/or protective layer and the second layer forms the decorative surface layer of the building panel,
- wherein the first layer comprises wood fibres with random fibre direction such that the first layer has similar shrinkage properties as the decorative surface layer.
Dependencies are inferred from the claim text.