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Paper machine tensioning

A technology for paper machines and net blankets, applied in the field of net blankets, can solve a large number of separate processes and other problems, achieve the effect of improving connections and reducing processing costs

Inactive Publication Date: 2010-11-17
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Manufacturing these complex structures requires a large number of individual processes

Method used

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  • Paper machine tensioning
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Examples

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Embodiment Construction

[0037] figure 1 A warp-knitted structure 1 with an intermediate layer 2 attached is shown. The warp knitted structure 1 is composed of sewing threads 3 and reinforcing threads 4 which run parallel to one another along their length, wherein the reinforcing threads 4 have a greater bending stiffness than the sewing threads 3 . These sewing threads 3 form a mesh into which reinforcing threads 4 are woven in order to form the warp knitted structure 1 . In the present case, the sewing threads 3 form rows 5 of meshes arranged parallel to one another and extending substantially perpendicularly to the reinforcing threads 4 into which the reinforcing threads 4 are woven.

[0038] According to the invention, an intermediate layer 2 is provided on the warp knitted structure 1 , which is connected by sewing threads 3 with reinforcing threads 4 .

[0039] The intermediate layer 2 is currently composed of a spunbond nonwoven, which in turn consists of polyurethane fibers 6 . The mass per...

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Abstract

The invention relates to a clothing especially a press felt for a paper, cardboard or tissue machine with a nonwoven structure comprising staple fibers and which provides the paper and running side of the clothing and with a base structure which is embedded into the nonwoven structure, whereby the base structure comprises a warp knit structure which has sewing threads and reinforcing threads extending lengthways parallel to each other and which have a greater flexural strength than the sewing threads, whereby the sewing threads form loops into which the reinforcing threads are tied thereby forming the warp knit structure. The invention is characterized in that an intermediate layer is arranged at the warp knit structure which is connected with the reinforcing threads by way of the sewing threads.

Description

technical field [0001] The invention relates to a clothing for a paper machine, cardboard or tissue paper machine, which has a nonwoven structure of short fibers and is embedded in the nonwoven structure, comprising a paper side and a running side provided with the clothing in the basic structure. Background technique [0002] Clothings of the stated type, in particular press felts, often comprise, in addition to the known components such as the nonwoven structure and the base structure providing dimensional stability, further functional layers by means of which, for example, the rewetting properties of the clothing or Shock-absorbing properties. [0003] Manufacturing these complex structures requires a large number of individual processes. Contents of the invention [0004] The technical problem to be solved by the present invention is to improve a kind of clothing of the type mentioned in the opening part, so that this clothing can be produced simply and cheaply, and ...

Claims

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Application Information

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IPC IPC(8): D21F7/08
CPCD21F1/0036D21F7/083Y10T442/494
Inventor 尤维·科克里茨休伯特·沃肯豪斯
Owner VOITH PATENT GMBH
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