Patent ID: 9404218
Filing Date: 2016-08-02
CPC Classification: B32B,D03D,D10B,D21F

Claim Text:
1. A press felt comprising two stacked layers of a woven single layer base fabric, each of the layers of the base fabric being formed by a system of warp yarns interwoven with first and second systems of weft yarns according to a defined single layer weave pattern, the two stacked layers being needled with at least one batt layer, wherein in the woven single layer base fabric, a) the warp yarns of the system of warp yarns are polymeric monofilaments arranged as a single layer and are interwoven with the weft yarns in the first and second systems of weft yarns; b) the weft yarns of the first system of weft yarns comprise cabled polymeric monofilaments and the weft yarns of the second system of weft yarns comprise single polymeric monofilaments; c) the cabled polymeric monofilaments comprise from 50% to 85% of the weft yarns and the single polymeric monofilaments make up from 50% to 15% of the weft yarns in one repeat of the base fabric weave construction; d) the cabled monofilaments are each comprised of at least two monofilaments which are cabled together; and e) at least two of the cabled weft yarns in each repeat are adjacent to each other; and f) a center line to center line first distance between any two adjacent ones of the weft yarns in one repeat of the repeating weave pattern differs from a corresponding center line to center line second distance between a second different set of adjacent ones of the weft yarns in the repeat, with both the first and the second distances being different than a center line to center line third distance between a third different set of adjacent ones of the weft yarns in the repeat.