Recycling of laminate floorings
View Patent ↗Recycling of laminate flooring based on a separation of the panels ( 1 ) into particles which are connected with a binder and formed to a new sheet shaped material. A building panel includes a surface layer and a wood fiber based core, and the wood fiber based core includes aluminum oxide particles.
1. A method to recycle floor panels comprising a wood fibre based core, a decorative surface layer comprising a thermosetting resin and aluminium oxide, wherein the method comprises the steps of:
mechanical cutting of the panel into particles;
mixing said particles with a binder; and
pressing under heat the mixed particles and binder, and thereby curing the binder and forming a sheet shaped material.
2. The method as claimed in claim 1 , wherein the binder is a melamine formaldehyde resin.
3. The method as claimed in claim 1 , wherein the binder is a urea resin.
4. The method as claimed in claim 1 , wherein the binder is a phenol resin.
5. The method as claimed in claim 1 , wherein the binder is a powder resin.
6. The method as claimed in claim 1 , wherein the method comprises the step of separating particles essentially into a first set of particles comprising substantially wood fibres and a second set of particles comprising substantially melamine before mixing at least the first set of elements with the binder.
7. The method as claimed in claim 1 , further comprising pre-pressing the particles and the binder before the step of pressing under heat.
8. The method as claimed in claim 1 , further comprising printing on the sheet shaped material.
9. The method as claimed in claim 8 , wherein the printing is made with an ink jet printer.
10. A method to recycle floor panels comprising a wood fibre based core, a decorative surface layer comprising a thermosetting resin and aluminium oxide wherein the method comprises the steps of:
mechanical cutting of the panel into particles;
mixing said particles with a binder; and
pressing the mixed particles and binder and thereby forming a sheet shaped material,
wherein the sheet shaped material forms a layer arranged on a core.
11. The method as claimed in claim 10 , wherein the layer is a surface layer.
12. The method as claimed in claim 10 , wherein the layer is a balancing layer.
13. The method as claimed in claim 10 , wherein the pressing is made under heat.
14. The method as claimed in claim 10 , wherein the sheet shaped material is formed by curing the binder.
15. The method as claimed in claim 10 , wherein the binder is a melamine formaldehyde resin.
16. The method as claimed in claim 10 , wherein the binder is a urea resin.
17. The method as claimed in claim 10 , wherein the binder is a phenol resin.
18. The method as claimed in claim 10 , wherein the method comprises the step of separating particles essentially into a first set of particles comprising substantially wood fibres and a second set of particles comprising substantially melamine before mixing at least the first set of elements with a binder.
19. The method as claimed in claim 10 , further comprising printing on the layer.
20. A building panel comprising a sheet shaped material produced according to claim 1 .
21. A building panel comprising a sheet shaped material produced according to claim 10 .
22. A method to recycle floor panels, comprising:
mechanical cutting of the panel into particles;
mixing said particles with a binder; and
pressing under heat the mixed particles and binder, and thereby curing the binder and forming a sheet shaped material.
23. The method as claimed in claim 22 , wherein the sheet shaped material forms a layer arranged on a core.