Process for producing light-weight fiber brick

A process for the production of a light-weight fiber brick from a water-fiber suspension, said process comprising:

• providing a molding device including a bottom wall and four side walls extending perpendicularly from said bottom wall, thereby defining an upwardly open mold interior;
• introducing said suspension into said interior;
• simultaneously withdrawing water from said interior through said bottom wall and at least two mutually perpendicular and adjacent said side walls, and thus causing said fibers to tend to align longitudinally throughout said interior in three spatial coordinate directions, and thereby forming a brick having fibers thereof aligned with longitudinal directions thereof having directional components in three spatial coordinate directions;
• positioning a molding stamp in said interior and thereby compressing said aligned fibers of said brick therein, while simultaneously withdrawing further water through said bottom wall and said at least two side walls, thereby expelling further water from said interior;
• and
• moving said side walls relative to said bottom wall, and removing said brick from said molding device.