Abstract: The invention regards a forming box for use in dry-forming a mat of fibrous material, said forming box comprising a housing with an open bottom for providing direct access of the fibers onto an underlying forming wire and a vacuum box underneath said forming wire, at least one inlet for supplying fiber material into the inside of the housing, a number of spike rollers are provided in at least one row in the housing between the fiber inlet and the housing bottom, wherein a screen is provided adjacent said spike rollers, said screen comprising a plurality of slats, wherein each slat is rotatable.

Abstract: The present invention concerns an air-laid non-woven fibre product manufactured by a dry forming process, said product comprising a first portion of up to 98% recycled shredded material, where the shredded material is a mixture of shredded fabric material fibres from automotive tires or the like and residues of rubber and other components from the shredded tires, and a second portion of 1-30%, preferably 1-5%, bi-component fibres having a length between 2-50 mm, preferably 2-6 mm in length.

Abstract: A forming box for use in dry forming of a mat of fibrous material, and a forming method. The forming box comprises a housing with an open bottom providing direct access for fibers onto an underlying forming wire and a vacuum box underneath said forming wire; an inlet for supplying fiber material into the inside of the housing; and a number of fiber separating rollers in one or more rows in the housing between the fiber inlet and the housing bottom. An endless belt screen is provided inside the housing having an upper run between two rows of spike rollers and a lower run closer to the open bottom of the forming box. Fiber clumps captured on the lower run of the belt screen are conveyed above fiber separating rollers and are released from the upper run of the belt screen into contact with the fiber separating rollers.