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Papermaking felt

A wool and felt technology, used in papermaking, papermaking, textiles and papermaking, etc., to achieve the effect of extending service life and reducing wear and tear

Inactive Publication Date: 2008-07-30
ICHIKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the contact portion where the papermaking felt is in contact with the squeeze roll, the above-mentioned problem of abrasion of the papermaking felt becomes remarkable.

Method used

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Embodiment Construction

[0022] Hereinafter, a detailed description of the present invention will be described.

[0023] In the present invention, there is no particular limitation except that the protective layer is formed on the contact portion of the papermaking felt which is in contact with the edge of the squeeze roll. Therefore, the papermaking felt on which the protective layer is formed is not limited. However, the following are some examples of papermaking felts.

[0024] In general, papermaking felts have a base member that is sandwiched between layers of felt. Typically, textiles woven from warp and weft threads are used as base components, for example, in looms. The raw materials for warp and weft can be polyester (such as polyethylene terephthalate or polybutylene terephthalate), polyamide (such as polyamide-6, polyamide-66, polyamide -610 or polyamide-612), polyphenylene sulfide, polyvinylidene fluoride, polypropylene, aramide, polyether ether ketone, polytetrafluoroethylene, polyethy...

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Abstract

A papermaking felt is provided with a base member, a batt layer formed on the base member, and a protective layer which is formed over a predetermined width in a contacting portion of the papermaking felt where a press roll of a press apparatus comes into contact.

Description

technical field [0001] The present invention relates to a papermaking felt for conveying a wet paper web in a paper machine. Background technique [0002] A paper machine generally includes a wire part, a press part and a dryer part. Along the conveying direction of the wet paper web, the wire mesh section, pressing section and drying section are arranged in this order. The wet paper web is conveyed by being conveyed in a continuous manner in papermaking conveying devices provided in the wire section, pressing section and drying section, respectively. While the wet paper is being conveyed, moisture is squeezed therefrom (in other words, moisture is drained), and finally, the wet paper is dried in the dryer section. [0003] FIG. 4 is a diagram showing an example of a shoe pressing device 91 constituting the pressing portion. A shoe S having a concave arc-shaped upper surface is kept in planar contact with the lower surface of the squeeze roll P, and a wet paper web W is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F7/08D21F3/04
CPCD21F3/045D21F7/083Y10T428/24612Y10T428/2495Y10T442/56Y10T442/30Y10T442/59D21F7/08D21F3/04
Inventor 高桥诚
Owner ICHIKAWA ELECTRIC CO LTD
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