Powder based balancing layer

1. 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:

applying a first layer of a first powder based mix, comprising wood fibers and a thermosetting binder, on a core;

applying a liquid substance on the first powder based mix;

drying the first powder based mix by infrared heating;

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.

2. The method as claimed in claim 1 , wherein the building panel is a floor panel.

3. The method as claimed in claim 1 , wherein the core is a HDF or MDF board.

4. The method as claimed in claim 1 , wherein the step of applying said second layer comprises applying a veneer layer.

5. The method as claimed in claim 1 , wherein the step of applying said second layer comprises applying a first paper sheet.

6. The method as claimed in claim 5 , wherein the step of applying said second layer further comprising applying a second paper sheet.

7. The method as claimed in claim 6 , wherein the step of applying said first and second paper sheets comprises arranging said first paper sheet such that the fiber direction of the first paper sheet is extending in a first direction, and arranging said second paper sheet such that the fiber direction of the second paper sheet is extending in a second direction, said second direction being transverse to the first direction.

8. The method as claimed in claim 1 , wherein the step of applying the second layer comprises applying a second powder based mix comprising wood fibers, binders, and wear resistant particles.

9. The method as claimed in claim 8 , wherein the method comprises the further step of applying a print or a color substance into the second mix.

10. 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 fibers and a thermosetting binder, on a carrier;

applying a liquid substance on the first powder based mix;

drying the first powder based mix by infrared heating;

placing the core on the first powder based mix;

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 of the building panel.

11. The method as claimed in claim 10 , wherein the building panel is a floor panel.

12. The method as claimed in claim 10 , wherein the core is a HDF or MDF board.

13. The method as claimed in claim 10 , wherein the carrier is a fiber based material.

14. The method as claimed in claim 10 , wherein the step of applying said second layer comprises applying a veneer layer.

15. The method as claimed in claim 10 , wherein the step of applying said second layer comprises applying a first paper sheet.

16. The method as claimed in claim 15 , wherein the step of applying said second layer further comprising applying a second paper sheet.

17. The method as claimed in claim 16 , wherein the step of applying said first and second paper sheet comprises arranging said first paper sheet such that the fiber direction of the first paper sheet is extending in a first direction, and arranging said second paper sheet such that the fiber direction of the second paper sheet is extending in a second direction, said second direction being transverse to the first direction.

18. The method as claimed in claim 10 , wherein the step of applying said second layer comprises applying a second powder based mix comprising wood fibers, binders, and wear resistant particles.

19. A method of manufacturing a separate and continuous powder based balancing and/or protective layer, which is essentially uncured, wherein the method comprises the steps of:

applying a powder mix, comprising fibers and a thermosetting binder, on a carrier;

applying moisture on the powder mix such that the powder mix is connected together to form an uncured balancing and/or protective layer;

drying the uncured balancing and/or protective layer by infrared heating; and

releasing the uncured balancing and/or protective layer from the carrier.

20. The method as claimed in claim 19 , wherein the fibers are wood fibers and the binder a melamine resin.

21. The method as claimed in claim 10 , wherein the carrier is of a thin material with a thickness that does not exceed the thickness of the decorative surface layer.