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EP0048962A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Two-layered sieve for the sheet forming zone of a paper machine

Assignee: Herman Wangner GmbH and Co KG
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Filing: 1981-09-24
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Granted: —
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Expires: 2001-09-24
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Abstract

Abstract Translated from German Ein doppellagiges Sieb für den Blattbildungsteil einer Papiermaschine enthält paarweise übereinander angeordnete Schussfäden (3, 4) und Kettfäden, wobei alle Kettfäden in die obere Lage (5) des Siebes eingebunden sind. Nur ein Teil der Kettfäden (Konstruktionskette 1) ist jedoch auch in die untere Lage (6) des Siebes eingebunden. Vorzugsweise ist die Kettzahl der oberen, zur Bildung der Papierbahn dienenden Gewebelage (5) mindestens doppelt so hoch wie die der unteren Lage (6). Ferner sind vorzugsweise die unteren Schussfäden (4) mindestens 30% dicker als die Kettfäden. A double-layer sieve for the sheet-forming part of a paper machine contains weft threads (3, 4) and warp threads arranged in pairs one above the other, all the warp threads being bound into the upper layer (5) of the sieve. However, only part of the warp threads (construction chain 1) is also integrated in the lower layer (6) of the sieve. The warp number of the upper fabric layer (5) used to form the paper web is preferably at least twice as high as that of the lower layer (6). Furthermore, the lower weft threads (4) are preferably at least 30% thicker than the warp threads.

Inventors

  • 👤 Georg Borel

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 00:12
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0036; Y; Y10; Y10S; Y10S162/00; Y10S162/90

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