Papermakers fabric having a system of machine-direction yarns residing interior of the fabric surfaces
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United States of America Patent
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-
Apr 2, 1996
Grant Date -
N/A
app pub date -
Dec 7, 1994
filing date -
Dec 7, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A papermaker's fabric having a smooth surface and a prolonged life includes flat machine-direction yarns which define the upper and lower surfaces thereof. The fabric has two layers of cross-machine direction yarns, each of which is interwoven with the flat machine-direction yarns. Other machine-direction yarns, of round cross section, weave with the cross-machine-direction yarns in the two layers to bind the two layers together. The knuckles of these round machine-direction yarns are within the fabric with respect to the planes defined by the flat machine-direction yarns, and, as a consequence, are less susceptible to degradation by heat and abrasion. The round machine-direction yarns may be used to seam the fabric. A longer fabric life follows from the protection of the round machine-direction yarns by the flat. The papermaker's fabric is particularly useful as a dryer fabric on the dryer section of a papermachine.
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