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AssigneeSaati S.P.A.
InventorsMarco MIETTA, Lorenzo GELSO, Carmine LUCIGNANO, Roberto MOMENTE, Sergio PESENTI, Paolo CANONICO
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The invention discloses polypropylene monofilament filter cloth special for beer, which is characterized in that warp and weft yarns are 0.28 mm polypropylene monofilaments, the warp yarn density is 300/10 cm, and the weft yarn density is 140/10 cm; a two-up two-down twill plus one-up one-down plain double-weave weaving method is adopted for cloth cover weave innovation, the warp and weft woven double-fabric weave is combined with the filter cloth, and through double innovation of the silk thread type and the weaving method, the breaking strength of the filter cloth is improved, the service life is prolonged, the softness of the filter cloth is improved, the filter cloth is more attached to the surface of a filter plate, and the filter cloth is more attractive in appearance. The filtering efficiency is improved.
Synthetic monofilament open-mesh filter fabric with asymmetric structure having spaced threads or yarns and with a diameter such as to determine a plurality of visible mesh openings on the surface of the fabric in a plan view and that can be crossed by a flow of fluid with movement in the direction perpendicular to the plane of the fabric itself, characterized in that it has a linear density/cm of the warp threads different from a linear density/cm of the weft threads, and characterized in that in which the diameter of the warp threads is different from the diameter of the weft threads, said diameter ranging from 10 μm to 90 μm both in the warp and weft directions, wherein the ratio between the linear densities/cm of the warp threads and of the weft threads in their respective directions is in the range between 0.4:1 and 2.5:1 and the ratio between the diameter of the warp threads and the diameter of the weft threads is in the range between 0.5:1 and 2:1.
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