The manufacturing process of a woodpanel
The panels are manufactured with wood chips combined with a thermosetting binder. Softwood and hardwood species are used in the form of roundwood and products from first processing (sawdust, slabs, etc.).
The preparation:
Softwood and hardwood species are used in the form of roundwood and products from first processing (sawdust, slabs). The wood is fragmented and dried (steam plume) to obtain dry chips that are then sorted into two grain sizes: the inner and outer layers.
Gluing:
The wood chips are mixed with a sticky mixture based on urea formaldehyde or melamine urea formaldehyde glue depending on the type of panel required.
The conformation:
The objective is to produce a mattress of glued chips composed of a layer of coarse chips in the core and a layer of fine chips on each side. Its weight and size meet specific technical criteria.
Thermo-pressing:
This operation makes it possible to obtain the thickness of the finished product and the polymerization of the glue. It is carried out at high pressures (200 bar) and high temperatures (170°C to 200°C).
The panels are then coated in two different forms:
– The foil finish: decorative paper in rolls, calendered on the glued panel.
– Melamine: resin-impregnated decorative sheet, hot-pressed on the panel.
The panels are then cut and machined: custom-made slabs, floor slabs, ready-to-use sung shelves.
Types of panels:
The majority of our production is manufactured in E1/2 quality according to the control agreement with the CTBA.
– Standard E1/2 : The E1/2 quality is a range of panels with reduced urea formaldehyde emissions (formaldehyde content less than 4 mg per 100g of atro panels).
– CTBH: Panels for use in an environment with temporary moisture risks and for working use: use for the building as a roofing or waterproofing support.
– Other: Specific applications such as technical flooring for which high bending resistance due to heavy loads is required.