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Transport belt

a technology of transport belts and spools, applied in the field of transport belts, can solve the problems of affecting the release of web material from the transport belt, disturbance of existing water film, and change of the surface characteristic of the belt, and achieve the effect of high quality without the risk of unwanted adhesion

Inactive Publication Date: 2010-07-29
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a transport belt for machines producing web material such as paper or paperboard that has printing material on its surface. This printing material helps prevent unwanted adhesion between the belt and the paper or paperboard. The printing material can be applied in a regular or irregular pattern and is designed to match the surface properties of the belt after a run-in phase. The printing material can be printing ink or writing ink and can be thick or thin, depending on the needs of the machine. The printing material can be gradually worn off during the run-in phase and can be removed from the belt during production. Overall, the invention improves the quality and efficiency of the production process for web material.

Problems solved by technology

However, a problem arises at the point where the transport belt is separated from the web material.
More specifically, the existing thin film of liquid or water produces an adhesive effect which impairs the releasing of the web material from the transport belt.
After the material has passed through this press roller region the compressed transport belt relaxes, with the result that the serrated elevations forming the surface roughness create a disturbance in the existing water film.
Another problem with such transport belts is that, in the initial phase of its working life, the surface characteristic of the belt is changed by the contact that takes place with the web material.
This can impair the releasing of the transport belt from the web material to be produced.

Method used

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Embodiment Construction

[0037]The particulars shown herein are by way of example and for purposes of illustrative discussion of the embodiments of the present invention only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the present invention. In this regard, no attempt is made to show structural details of the present invention in more detail than is necessary for the fundamental understanding of the present invention, the description taken with the drawing making apparent to those skilled in the art how the several forms of the present invention may be embodied in practice.

[0038]The transport belt 10, shown partly and in a plan view in the FIG. 1, can be configured in terms of its basic construction along generally known lines. In other words, the transport belt 10 is constructed in regions from flexible material, for example, polyurethane or the like, and has, for example, in a central regi...

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Abstract

A transport belt, in particular for machines for the production of web material such as paper or paperboard. The transport belt includes a web material contact side having a substantially smooth unstructured web material surface and having printing material thereon.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a Continuation of U.S. patent application Ser. No. 11 / 626,675 filed Jan. 24, 2007, which claims priority under 35 U.S.C. §119 of German Patent Application No. 10 2006 003 708.1 filed Jan. 26, 2006, the disclosures of which are expressly incorporated by reference herein in their entireties.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]This invention relates to a transport belt and, more particularly, to a transport belt used on machines for the production of web material such as paper or paperboard.[0004]2. Discussion of Background Information[0005]Transport belts are used in the production of paper, for example, in regions in which wet paper material is passed through press sections in order to remove liquid still present in the material. A thin liquid film from the water pressed out of the material forms between the transport belt and the web material as the material passes through two press r...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D21G9/00
CPCD21F7/083Y10T428/2481Y10T428/24802Y10S162/901
Inventor WESTERKAMP, ARVED H.SCHMITT, MATTHIAS
Owner VOITH PATENT GMBH