Abstract: A method and apparatus for producing a web of non-woven fibrous material which is cross-linked in the carding step by means of an intermediate card. There is a main cylinder with two web forming rollers engaging the main cylinder, each taking off one card web. One of the web forming rollers is a random roller for producing a random orientation of the card web. The random roller has associated with it a trough plate with a space between the roller and plate. The space tapers toward the discharge end resulting in stuffing or compression on the web until the web exits to a free non-woven forming zone. Two card webs form a single web, which is taken off the card.

Abstract: When joining nonwoven textile fiber webs the fabrics are placed side by side by means of rolls and are commonly transported away. The adjacent webs (7,8) are subjected to a stuffing process (10,36). Thereafter, the stuffed web of larger thickness is slightly stretched by having the successive roll rotate faster than the stuffing roll. In this manner, multiple side by side webs may be joined by fibers near their adjoining edges entangling to interlock and form an integral large-width web.

Abstract: In a device for pneumatically feeding fiber to a machine such as a card or the like, the feed member (4) above the chute (2) is a tube of a circular or substantially circular cross section. The depth at the entrance of the chute (2) is less than the diameter of the tubular feed member (4).

Abstract: A card for producing fibrous webs or random webs of textile fibers comprises a plurality of cylinders in series with metallic wire. The cylinders rotate in a predetermined mutual sense to which worker rolls are coordinated. The cylinders and workers are covered by trough-shaped plates. The trough-shaped cover of the cylinders or workers (7, 8, 9) is formed of a plurality of trough sections (20a, 20b, 20c, 20d, 20e) which are arranged in close succession. The trough sections are adapted to be adjustable and to be opened respectively. By this means, a control of the optimum air amount at the rollers may be achieved uniformly over the working width.

Abstract: An apparatus and process for producing fibrous nonwoven fabrics of at least two superposed fibrous web layers of equal or different structure is disclosed by using at least two successively arranged cards (2, 5) in a card set, means for discharging the fibrous webs from the card or the like in one direction, the discharged fibrous web layers being fed to a finishing unit (15) such as a calendar and the like, each card being provided with at least one doffing point (3, 4; 3',4'). The improvement comprises a conveying means (7, 12) carried adjacent and following the doffing point which is tiltable upwardly or downwardly at a predetermined angle. Transport devices (8, 9, 13, 14, 16) are mounted above and beneath the cards in communication with conveying means for transporting discharged webs.

Abstract: Apparatus for compacting a nonwoven textile fabric mat is disclosed which includes an arrangement of rollers having a pair of juxtaposed rollers (2,3) and a superposed roller (4) arranged in a fiber compacting arrangement. Juxtaposed rollers (2,3) are spaced apart to define a space (9) in which central superposed roller (4) extends for compacting fibers. Perforations (5) extend through the surface of a shell (6) of each of the rollers. A first conveyor (16,19) conveys the textile fibers to the roller arrangement and a second conveyor belt (17,20) conveys the fibers away from the roller arrangement. Belts (19,20) may be perforated and surround rollers (2,3), respectively. Suction applied to the interior of the rollers assists in compacting the fibers in the mat as air is drawn through perforations (5) which are of a predetermined diameter and shape.

Abstract: An apparatus for producing fibrous nonwoven fabrics of at least two superposed fibrous web layers of equal or different structure is disclosed by using at least two successively arranged cards (2, 5) in a card set, means for discharging the fibrous webs from the card or the like in one direction, the discharged fibrous web layers being fed to a finishing unit (15) such as a calendar and the like, each card being provided with at least one doffing point (3, 4; 3',4'). The improvement comprises a conveying means (7, 12) carried adjacent and following the doffing point which is tiltable upwardly or downwardly at a predetermined angle. Transport devices (8, 9, 13, 14, 16) are mounted above and beneath the cards in communication with conveying means for transporting discharged webs.