There are three types: wet method, dry method and semi-dry method. The wet production process uses water as the carrier for fiber transportation.
The mechanism is to use the interweaving of fibers to generate friction, the bonding force between the molecules on the fiber surface, and the cementing force generated by the fiber content to make a certain strength. Fiberboard. The dry production process uses air as the fiber transport carrier. The fiber preparation uses a one-time separation method. Generally, it is not refined and needs to be applied with adhesive. The fibers must be dried before the slab is formed, and usually no heat treatment is required after hot pressing into a board. Other processes Same as wet method. The semi-dry production process also uses air-flow molding, the fiber is not dried and maintains a high moisture content, and no or less sizing material is used. Therefore, the semi-dry method overcomes the main shortcomings of the dry method and the wet method while maintaining some of its advantages.