Abstract: A process for the hot press moulding of moulded articles, such as the internal linings of motor vehicles or the like is described, in which planar blanks of tangled fibre mat fleece mixed with binders, using at least one mould, are permanently deformed in a multidimensional moulding process after evaporating on the mat fleece. A stabilizing support is introduced during the deformation process on at least one side between the shaping surface of the mould and the mat fleece. It is in the form of a fibrous sandwich layer which is substantially elongation-free in the surface direction at ambient temperature, but is plastically deformable within the hot press mould under the action of heat. With and/or immediately after the moulding process, said stabilization support becomes a substantially elongation-free, inflexible covering. The geometry of the flexible stabilizing support is to be made to coincide with that of the mat fleece blank to be deformed.

Abstract: A process for the production of three-dimensionally deformed mouldings from planar blanks of binder-containing fibrous mats, which preferably contain cellulose and/or lignocellulose fibres is proposed. The initially pourable, loose fibrous material is brought into mat form and compressed to a tangled fibre fabric, from which the desired blanks are punched or separated in some other way. These blanks are subsequently softened by steam treatment or adequately plasticized for deformation purposes by some other heat treatment. In this form, they finally undergo the process which compresses or deforms the fibrous material. During or after steam treatment or the other thermal treatment, a linear or lattice-like retaining grid or pressing grid is applied to at least one side of the mat blank in such a way that, in accordance with the grid structure and at least partly stopping the thickness increase resulting from steam treatment, a corresponding compression pattern is impressed in the vaporized-on mat blank.