Clothing for a machine for producing a fibrous web and method for producing a clothing of this type

Patent metadata

Field	Value
Publication number	US-11072889-B2
Application number	US-201716313943-A
Country	US
Kind code	B2
Filing date	May 30, 2017
Priority date	Jun 28, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A covering is particularly suited for use in a machine for producing and/or finishing a paper, cardboard, tissue or pulp web. The covering has a basic structure formed as a part of a flat woven material, which flat woven material is designed as a woven material by interlacing warp threads and weft threads. The portion of the flat woven material has a plurality of sections that are formed integrally with each other, with at least one property of one of the sections differing from the respective property of at least one adjacent section.

First claim

The invention claimed is:

1. A clothing, comprising:
a basic structure being a portion of a flat woven material, said flat woven material being formed of mutually intersecting warp threads and weft threads;
a portion of said flat woven material having a plurality of sections that are integrally formed in one piece with one another, wherein at least one property of one of said sections is different from the respective property of at least one adjoining section,
said portion having three successive sections that extend one behind another in a machine direction of the clothing, wherein a first section is followed by a second section and the second section is followed by a third section; and
a length of said first and third sections equals or is less than 50 cm, and wherein said first and third sections are woven in one layer and said second section is woven in two layers, to form the clothing in two layers in an entirety.

2. The clothing according to claim 1 , wherein said at least one property is selected from the group consisting of a weave pattern, a number of web layers, a material of the weft threads and/or a material of the warp threads, a material thickness of the weft threads and a density of the weft threads.

3. The clothing according to claim 1 , wherein at least one of said sections is woven in one layer and at least one other section is woven in two or more layers.

4. The clothing according to claim 1 , wherein a thickness of said weft threads of at least one of said sections is different from a thickness of said weft threads of at least one other section.

5. The clothing according to claim 1 , wherein a material of said weft threads of at least one of said sections is different from a material of the weft threads of at least one other section.

6. The clothing according to claim 1 , wherein the length of said first and third sections in the machine direction corresponds at least to a length of said second section in the machine direction.

7. The clothing according to claim 6 , wherein the length of said first and third sections exceeds the length of said second section by 0-5%.

8. The clothing according to claim 6 , wherein the length of said first and third sections exceeds the length of said second section by 3%.

9. The clothing according to claim 1 , wherein the length of said first and third sections is less than 20 cm.

10. The clothing according to claim 1 , wherein the length of said first and third sections is less than 5 cm.

11. The clothing according to claim 6 , wherein the properties of said first section equal the properties of said third section.

12. The clothing according to claim 11 , wherein at least one property of said second section is different from the properties of said first and third sections.

13. The clothing according to claim 1 , configured for use in a machine for manufacturing and/or finishing a paper, cardboard, tissue or pulp web.

14. A method of producing a clothing according to claim 1 , the method comprising:
i) producing a flat woven material by weaving a sequence of sections;
ii) cutting to length a portion of the flat woven material that contains three sections; and
iii) folding over at any location within a second section, wherein the first and third sections are superimposed on each other and brought into line, and wherein the first and the third sections are woven in one layer and the second section is woven in two layers.

15. The method according to claim 14 , which further comprises removing weft threads at the transition points in order to form seam loops.

16. The method according to claim 15 , wherein step vi) further comprises introducing stabilization seams after removing the weft threads.

17. The method according to claim 14 , which comprises, after superimposing and bringing the first and third sections in line, connecting the first and third sections to one another.

18. The method according to claim 17 , which comprises connecting by gluing, ultrasonic welding or laser welding.

Assignees

• Voith Patent Gmbh

Inventors

• Malmquist Johan
• Johansson Hans-Joergen

Classifications

• D21F7/083

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• C02F1/4672

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• D21F1/0036

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• D21F1/0054

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• E04H9/14

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