AstenJohnson Inc. | Date: 2014-03-26
A nonwoven industrial fabric comprising a first layer secured to a second layer, with each layer comprising a plurality of flow-through apertures and profiling protrusions, wherein: a) at least a portion of the flow-through apertures of the first layer is aligned with at least a portion of the flow-through apertures of the second layer; b) the first layer comprises a plurality of securing protrusions integral to the first layer; c) the second layer comprises a plurality of detents integral to the second layer; and d) the first layer is secured to the second layer by a plurality of locking pairs, each locking pair comprising a securing protrusion lockably engaged with a detent. A method of making the nonwoven industrial fabric is also described.
AstenJohnson Inc. | Date: 2013-06-18
A nonwoven industrial textile for conveying in an industrial process, seaming elements and methods of manufacture. The textile comprises at least first and second layers of film. Each layer comprises protrusions separated by land areas and each defining an aperture for a flow path through the layer. For at least one of the layers, the protrusions comprise a first set having first and second ends integral with contiguous land areas, and at least a second set of protrusions each comprising a first end integral with a contiguous land area and an opposing second end having a configuration selected from a detached free end; and a weakened end portion integral with but detachable from a contiguous land area in response to strain. The construction allows for relative movement of the layers during travel over machine components such as rolls, reducing internal strain and risk of delamination.
AstenJohnson Inc. | Date: 2014-01-30
Disclosed herein is a seaming element for attachment to an industrial textile. The industrial textile has opposed first and second seamable edge regions, while the seaming element has: i) a first lateral edge; ii) a second lateral edge; iii) a trailing edge; iv) a forward portion comprising a plurality of protruding seaming with successive loops spaced apart by an aperture, and v) a rearward portion continuous with the forward portion, with the rearward portion comprising an upper member and a lower member. The upper and lower members are substantially planar and have mutually opposed inner surfaces, with a portion of each inner surface bonded to the industrial textile at a selected one of the first and second seamable edge regions. At least one of the upper and lower member comprises one or more slits between the first lateral edge and the second lateral edge, with the one or more slits extending from the respective trailing edge in a direction towards the forward portion of the seaming element.
AstenJohnson Inc. | Date: 2014-02-06
A press felt formed of two stacked layers of woven single layer base fabric, each layer being formed by warp yarns interwoven with two systems of weft yarns according to a single layer weave pattern. The layers are needled with a batt layer. In the woven single layer base fabric: a) the warp yarns are polymeric monofilaments arranged as a single layer and there are two systems of weft yarns; b) the first system of weft yarns are formed by cabled polymeric monofilaments and the second system of well yarns are single polymeric monofilaments; c) the cabled polymeric monofilaments are 50% to 85% in one repeat; d) the cabled monofilaments are each formed of at least two monofilaments which are cabled together; and e) at least two of the cabled well yarns in each repeat are adjacent to each other.
AstenJohnson Inc. | Date: 2013-06-06
A film for conveying in an industrial process, industrial fabrics made from the film, and methods of manufacture. The film has a plurality of protrusions separated by land areas. Each protrusion comprises a top member having opposing lateral edges and is supported by opposed compression resistant first and second end walls, which with at least one of the lateral edges define an aperture extending through the film to provide a flow path. The base edge of each end wall has a configuration selected from at least one of the base edge being convexly curved away from the protrusion body; and each end wall extending below at least a part of each of the first and second lateral edges and being connected to each of the first and second lateral edges. The film structure provides physical properties equivalent to a woven fabric, with improved strength, stability and compression resistance.